Package testing device and gas permeability testing device

Abstract

The utility model relates to the technical field of gas permeability testing, and discloses a packaging material testing device and a gas permeability testing device.The packaging material testing device comprises a mounting plate, a sealing cover and a mounting base, the mounting plate and the sealing cover define a first closed space, and the mounting base is arranged on the mounting plate and located in the first closed space; the bottom of the sealing cover is provided with a first gas inlet and a first gas outlet through which test gas enters and exits, the inner side wall of the sealing cover is provided with a second gas inlet and a second gas outlet, a first gas outlet channel is communicated between the second gas inlet and the first gas outlet, and a first gas inlet channel is communicated between the first gas inlet and the second gas outlet; a second gas inlet channel and a second gas outlet channel for detecting gas inlet and outlet are formed in the bottom of the mounting plate; an air inlet pipe and an air outlet pipe are arranged on the mounting base, the air inlet pipe is connected with the second air inlet channel, and the air outlet pipe is connected with the second air outlet channel. According to the utility model, the gas transmission is smooth, the transmission efficiency and the use safety are improved, and the installation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas permeability test technical field, in particular to a kind of packaging test device and gas permeability test device. BACKGROUND

[0002] Packaging material is used to package the product for sale, and the qualified packaging material can prevent the influence of oxygen, moisture and other adverse factors on the product. In order to ensure the quality of the product, the gas permeability of the packaging material needs to be tested.

[0003] The most common two kinds of gas permeability test of packaging material are flat sample and packaging permeability test. The existing packaging gas permeability tester includes a test structure for placing the packaging and a detection device for providing gas into and out of the test structure.

[0004] However, when the existing test structure is connected with the detection device, the gas transmission is not smooth. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a packaging test device and a gas permeability test device with smooth gas transmission.

[0006] In order to achieve the above purpose, the utility model provides a packaging test device, which comprises a mounting plate, a sealing cover and a mounting seat for mounting the packaging, the mounting plate and the sealing cover form a first closed space, and the mounting seat is arranged above the mounting plate and in the first closed space.

[0007] The bottom of the sealing cover is provided with a first gas inlet and a first gas outlet for testing gas, the inner wall of the sealing cover is provided with a second gas inlet and a second gas outlet, the first gas outlet is communicated with the second gas inlet through a first gas outlet channel, and the first gas inlet is communicated with the second gas outlet through a first gas inlet channel.

[0008] The bottom of the mounting plate is provided with a second gas inlet channel and a second gas outlet channel for detecting gas, the mounting seat is provided with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is connected with the second gas inlet channel, and the gas outlet pipe is connected with the second gas outlet channel.

[0009] Further, the second gas outlet is arranged at the top of the sealing cover.

[0010] Further, the second gas outlet is arranged at the top of the sealing cover.

[0011] Further, the connection between the first connecting pipe and the sealing cover is fixed by a first fastener.

[0012] Further, the connection between the sealing cover and the mounting plate is provided with a first sealing element.

[0013] Further, the mounting seat further comprises a mounting groove, and the air inlet pipe and the air outlet pipe are provided with the mounting groove on both sides.

[0014] Further, the air inlet pipe is longer than the air outlet pipe.

[0015] Further, the connection between the air inlet pipe and the air outlet pipe and the mounting plate is provided with a second fastener on the outside.

[0016] The utility model also provides a kind of gas permeability testing device, including the above-mentioned packaging material testing device and with the packaging material testing device Communication detection device, detection device and second connecting pipe, the second connecting pipe communicates the packaging material testing device with the detection device, the detection device is provided with the first gas supply channel, the first gas collection channel, the second gas supply channel and the second gas collection channel corresponding with the first air inlet, the first air outlet, the second air inlet and the second air outlet in the packaging material testing device.

[0017] Further, the first gas supply channel and the second gas supply channel are respectively communicated with the gas production component of test gas and detection gas, and the first gas collection channel and the second gas collection channel are connected with the gas metering component.

[0018] Compared with the prior art, the packaging material testing device and the gas permeability testing device have the following advantages: the first air inlet and the first air outlet for testing gas inlet and outlet are arranged at the bottom of the sealing cover in the packaging material testing device, the second air inlet and the second air outlet for detecting gas inlet and outlet are arranged at the bottom of the mounting plate, and the gas inlet and outlet structures are arranged at the bottom of the packaging material testing device. The design of the bottom inlet and outlet can connect the vertical pipeline, reduce the problems of low transmission efficiency and potential leakage points caused by the use of curved connecting pipe, make the gas transmission smooth, improve the transmission efficiency and safety of the gas, and make the packaging material testing device easier to be fixed on the detection device, reduce the installation difficulty and cost, and improve the performance and safety of the gas permeability testing device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the cross-sectional structure schematic view of the packaging material testing device of the utility model embodiment;

[0020] Figure 2is a certain visual angle of the packaging material testing device of the embodiment of the utility model and is an external schematic view;

[0021] Figure 3 is another visual angle of the packaging material testing device of the embodiment of the utility model and is an external schematic view;

[0022] Figure 4 is the schematic view of the gas permeability testing device connected by the packaging material testing device and the detection device of the embodiment of the utility model.

[0023] In the figure, 100, gas permeability testing device;1, packaging material testing device;11, mounting plate;111, second air inlet channel;112, second air outlet channel;12, sealing cover;121, first air inlet;122, first air outlet;123, second air inlet;124, second air outlet;125, first air outlet channel;126, first air inlet channel;13, mounting seat;131, air inlet pipe;132, air outlet pipe;133, mounting groove;14, first closed space;15, first fastener;16, second fastener;17, first sealing element;2, detection device;21, first gas supply channel;22, first gas collection channel;23, second gas supply channel;24, second gas collection channel;3, second connecting pipe. DETAILED DESCRIPTION

[0024] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0025] In the description of the present application, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0027] In this application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] In the embodiment of the application, "parallel" refers to the state that the angle formed by straight lines, straight lines and surfaces, or surfaces is -1°-1°. In addition, "perpendicular" refers to the state that the angle formed by straight lines, straight lines and surfaces, or surfaces is 89°-91°. Equal distance, equal angle or equal area refers to the state that the tolerance range is -1%-1%.

[0029] Referring to Figures 1 to 4 The utility model discloses a packaging test device 1 of preferred embodiment, include: mounting plate 11, seal cover 12 and be used for installing the mounting seat 13 of packaging, mounting plate 11 and seal cover 12 enclose into first closed space 14, and mounting seat 13 sets up at the top of mounting plate 11 and is located first closed space 14.

[0030] Specifically, the mounting plate 11 is a plate structure, and other structures of the packaging test device 1 are all mounted on the mounting plate 11. The seal cover 12 is in the shape of an inverted U, and encloses a closed space with the mounting plate 11, that is, the first closed space 14. In order to ensure the mounting stability and fastening of the mounting plate 11 and the seal cover 12, a first sealing member 17 is arranged at the connection between the seal cover 12 and the mounting plate 11. The mounting seat 13 is arranged in the first closed space 14 and above the mounting plate 11, and the packaging that needs to be detected for gas permeability needs to be installed on the mounting seat 13 to perform the corresponding detection.

[0031] Specifically, in the present embodiment, the bottom of the mounting plate 11 is provided with a second gas inlet channel 111 and a second gas outlet channel 112 for detecting the gas in and out; the mounting seat 13 is provided with a gas inlet pipe 131 and a gas outlet pipe 132, the gas inlet pipe 131 is connected with the second gas inlet channel 111, and the gas outlet pipe 132 is connected with the second gas outlet channel 112. The mounting seat 13 further comprises a mounting groove 133, and the two sides of the gas inlet pipe 131 and the gas outlet pipe 132 are both provided with the mounting groove 133.

[0032] In the present embodiment, directly arranging the second gas inlet channel 111 and the second gas outlet channel 112 at the bottom of the mounting plate 11 is conducive to the smooth flow of the gas when the packaging test device 1 is installed on the detection device 2, and the detection gas generated by the detection device 2 can smoothly and quickly pass through the straight line to the packaging detection device 2, reducing the loss and passing time of the detection gas when passing through the curved path.

[0033] Specifically, the packaging is installed on the mounting seat 13 through the mounting groove 133, and the mounting groove 133 needs to be arranged outside the gas inlet pipe 131 and the gas outlet pipe 132 to surround the gas inlet pipe 131 and the gas outlet pipe 132, so as to detect the gas permeability of the packaging. The packaging and the mounting seat 13 form a second sealed space. The detection gas enters from the second gas inlet channel 111 at the bottom of the mounting plate 11, flows through the gas inlet pipe 131, and reaches the second sealed space; the detection gas flows out of the second sealed space from the gas outlet pipe 132 and flows out through the second gas outlet channel 112 at the bottom of the mounting plate 11.

[0034] Further, the gas inlet pipe 131 is longer than the gas outlet pipe 132, and the gas inlet pipe 131 and the gas outlet pipe 132 are both arranged upward, that is, the port of the gas inlet pipe 131 is higher than the port of the gas outlet pipe 132. The longer gas inlet pipe 131 can make the detection gas entering the second sealed space have more space for diffusion, so as to be more evenly distributed inside the second sealed space. Similarly, the longer gas inlet pipe 131 can reduce the turbulence at the gas inlet pipe 131, so that the detection gas enters the sealing cover 12 in a more stable manner, which is conducive to forming a stable air flow field.

[0035] Further, the second fastener 16 is arranged outside the connection between the air inlet pipe 131 and the air outlet pipe 132 and the mounting plate 11. The second fastener 16 can ensure that the air inlet pipe 131 and the air outlet pipe 132 are firmly fixed on the mounting plate 11, prevent loosening caused by vibration or external force, and at the same time, provide additional mechanical strength to enable the connection to remain stable in a vibration and impact environment and avoid connection failure. The second fastener 16 can realize quick connection and disconnection, facilitate installation and maintenance, especially in the case of frequent replacement or cleaning of the connecting pipe. The second fastener 16 arranged in the embodiment of the utility model can significantly improve the stability and sealing performance of the connection between the air inlet pipe 131, the air outlet pipe 132 and the mounting plate 11, and enhance the overall safety and reliability

[0036] Specifically, the first air inlet 121 and the first air outlet 122 for testing gas are arranged on the bottom of the sealing cover 12, the first air outlet 122 is arranged on the outer side close to the second air inlet channel 111, and the first air inlet 121 is arranged on the outer side close to the second air outlet channel 112; the second air inlet 123 and the second air outlet 124 are arranged on the inner wall of the sealing cover 12, the first air outlet channel 125 is arranged between the first air inlet 121 and the second air outlet 124, and the first air inlet channel 126 is arranged between the first air inlet 121 and the second air outlet 124.

[0037] In the embodiment, the first air inlet 121 and the first air outlet 122 arranged on the bottom of the sealing cover 12 are beneficial to smooth flow of the testing gas when the packaging test device 1 is installed on the detection device 2, and the testing gas generated by the detection device 2 can smoothly and quickly pass through the straight line to the packaging test device 2, thereby reducing the loss and passing time of the testing gas when passing through the curved path.

[0038] Specifically, the testing gas enters the sealing cover 12 from the first air inlet 121 on the bottom of the sealing cover 12, sequentially flows through the first air inlet channel 126 in the wall of the sealing cover 12 and the second air outlet 124 arranged on the side wall of the sealing cover 12, and then flows into the first closed space 14; the testing gas flows out of the first closed space 14 from the second air inlet 123 arranged on the side wall of the sealing cover 12, sequentially flows through the first air outlet channel 125 in the wall of the sealing cover 12 and the first air outlet 122 on the bottom of the sealing cover 12, and then flows out of the sealing cover 12. The first air inlet 121 and the first air outlet 122 can balance the flow of the testing gas in the first closed space 14, so that the first closed space 14 is filled with the testing gas and reaches the required test environment.

[0039] The second gas outlet 124 and the second gas inlet 123 can be arranged at any position on the side wall of the sealing cover 12. Preferably, the second gas inlet 123 is arranged near the bottom of the sealing cover 12 to reduce the flow path of the test gas in the first gas passage 125.

[0040] Preferably, the second gas outlet 124 is arranged at the top of the sealing cover 12, and the second gas inlet 123 is arranged near the bottom of the sealing cover 12.

[0041] The test gas flows into the first closed space 14 from the second gas outlet 124 and then flows out of the first closed space 14 from the second gas inlet 123. Arranging the second gas outlet 124 at the top of the sealing cover 12 can optimize the gas flow distribution and make the test gas fully mixed with the first closed space 14. When there are impurities (such as dust) in the test gas, the impurities will tend to settle down due to their weight and be discharged through the second gas inlet 123 at the bottom. This can more effectively utilize the gas flow in the first closed space 14, improve the gas exchange efficiency, and reduce the accumulation of pollutants. At the same time, the layout of the upper inlet and the lower outlet ensures that the gas can flow uniformly and be discharged in time, helping to maintain a more stable and safe operating environment.

[0042] Optionally, the first gas passage 126 connecting the first gas inlet 121 and the second gas outlet 124 can be arranged inside the wall of the sealing cover 12 or outside the sealing cover 12.

[0043] Preferably, the second gas outlet 124 is arranged through the top of the sealing cover 12, and the first gas passage 126 is a first connecting pipe arranged outside the sealing cover 12. Arranging the first connecting pipe outside the sealing cover 12 has the following advantages. First, it does not affect the space layout inside the sealing cover 12, and thus does not affect the airtightness of the sealing cover 12. Second, the first connecting pipe can be detached for cleaning or replacement to ensure the gas inlet efficiency of the test gas. Third, the length and direction of the first connecting pipe can be adjusted according to different installation environments.

[0044] Further, the connection between the first connecting pipe and the sealing cover 12 is fixed by a first fastener 15. The first fastener 15 is arranged outside the first connecting pipe and is mounted on the sealing cover 12. The first fastener 15 can ensure the airtightness of the connection to prevent leakage of the test gas, and can also provide sufficient mechanical strength to enable the connection to remain stable in a vibrating and impacting environment, avoiding loosening or falling off of the first connecting pipe on the sealing cover 12. In the embodiments of the present application, the first fastener 15 is used to fix the connection between the first connecting pipe and the sealing cover 12, which not only improves the reliability and safety of the connection, but also enhances the flexibility and maintenance convenience of the whole device.

[0045] The utility model also provides a kind of gas permeability testing device 100, including above-mentioned packing test device 1, detection device 2 and second connecting pipe 3, the second connecting pipe 3 intercommunication the packing test device 1 with the detection device 2, the detection device 2 is equipped with with the first air supply passage 21, the first gas collection channel 22, the second air supply passage 23 and the second gas collection channel 24 corresponding to the first air inlet 121, the first air outlet 122, the second air inlet channel 111 and the second air outlet channel 112 in the packing test device 1.The first air supply passage 21 and the second air supply passage 23 are communicated with the gas production component of test gas and detection gas respectively, and the first gas collection channel 22 and the second gas collection channel 24 are connected with gas metering component.

[0046] Referring to Figure 4 As shown in the figure, when the gas permeability of the packing needs to be detected, the packing test device 11 needs to be communicated with the detection device 2. In order to ensure the communication between the packing test device 11 and the detection device 2, a second connecting pipe 33 can be provided. The second connecting pipe 33 can be a hose or a hard pipe. The hose itself has elasticity and can be easily bent and twisted, improving the flexibility of installation. Its connection and disconnection are relatively convenient, without the need for other tools. Moreover, the hose can adapt to thermal expansion and contraction caused by temperature changes, maintaining the stability of the connection. If a hard pipe is used, the packing test device can be directly plugged into the detection device 2, simplifying the installation and disconnection process of the two and providing good sealing performance.

[0047] The detection device 2 not only has gas production components to generate test gas and detection gas entering the packing test device 1, but also has gas metering components to receive test gas and detection gas discharged by the packing test device 1. The gas metering components can detect the amount of gas penetrating from the outside of the pre-formed packing into the inside of the formed packing within a unit time, and evaluate the barrier performance of the packing through the amount of gas.

[0048] If it is necessary to test the gas permeability of a planar sample, the packing test device 1 does not need to be installed. The planar sample to be detected is placed at the position where the packing test device 1 is installed, and the cover of the detection device 2 is covered, so that the planar sample can be detected.

[0049] Therefore, the detection device 2 itself can detect the gas permeability of a planar sample. When the packing test device 1 is installed on the detection device 2, the gas permeability of the packing can be detected, without the need to purchase two devices for testing, reducing the use cost and improving the utilization rate of the device and the testing efficiency.

[0050] The working process of the utility model is: install the sealing cover 12 with the mounting plate 11, connect the packaging test device with the detection device using the second connecting pipe, open the detection device 2, make the test gas pass through the first air inlet 121, the first air passage 126, the second air outlet 124 and enter the first closed space 14, the test gas can flow out of the first closed space 14 from the first air outlet 122, the first air inlet 121 and the first air outlet 122 can make the first closed space 14 reach the test gas flow balance, make the first closed space 14 full of test gas, reach the required test environment. The packaging is fixed on the installation groove 133 of the mounting seat 13, makes the packaging in the sealed state, the detection gas enters the inside of the packaging through the second air passage 111 on the mounting plate 11 and the air inlet pipe 131 on the mounting seat 13, then flows out of the inside of the packaging from the air outlet pipe 132 on the mounting seat 13 and the second air passage 112 on the mounting plate 11, enters the detection device 2 through the detection gas, and the detection device 2 detects the gas amount penetrated into the inside of the packaging from the outside of the packaging in unit time.

[0051] In conclusion, the packaging test device and the gas permeability test device are provided, the inlet and outlet are designed at the bottom of the packaging test device, the vertical pipeline can be connected, the problems of low transmission efficiency and potential leakage point caused by the curved connecting pipe are reduced, the gas transmission is smooth, the transmission efficiency and use safety of the gas are improved, the packaging test device is also easier to be fixed on the detection device, the installation difficulty and cost are reduced, and the performance and use safety of the gas permeability test device are improved.

[0052] The above only is the preferred implementation manner of the utility model, and it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the technical principle of the utility model, a plurality of improvements and replacements can be made, and these improvements and replacements should be regarded as the protection scope of the utility model.

Claims

1. A packaging material testing device, characterized in that, include: The mounting plate, the sealing cover, and the mounting base for mounting the packaged goods, wherein the mounting plate and the sealing cover enclose a first sealed space, and the mounting base is disposed above the mounting plate and located in the first sealed space; The bottom of the sealing cover is provided with a first air inlet and a first air outlet for the test gas to enter and exit. The inner side wall of the sealing cover is provided with a second air inlet and a second air outlet. A first air outlet channel is connected between the second air inlet and the first air outlet. A first air inlet channel is connected between the first air inlet and the second air outlet. The bottom of the mounting plate is provided with a second air inlet channel and a second air outlet channel for detecting the entry and exit of gas; the mounting base is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe is connected to the second air inlet channel, and the air outlet pipe is connected to the second air outlet channel.

2. The packaging testing device according to claim 1, characterized in that, The second air outlet is located at the top of the sealing cover.

3. The packaging testing device according to claim 2, characterized in that, The second air outlet is disposed through the top of the sealing cover, and the first air inlet is a first connecting pipe disposed outside the sealing cover.

4. The packaging testing device according to claim 3, characterized in that, The connection between the first connecting tube and the sealing cover is secured by a first fastener.

5. The packaging testing device according to claim 1, characterized in that, A first sealing element is provided at the connection between the sealing cover and the mounting plate.

6. The packaging testing device according to claim 1, characterized in that, The mounting base also includes mounting grooves, and the mounting grooves are provided on both sides of the air inlet pipe and the air outlet pipe.

7. The packaging testing device according to claim 6, characterized in that, The air inlet pipe is longer than the air outlet pipe.

8. The packaging testing device according to claim 1, characterized in that, A second fastener is provided on the outer side of the connection between the air inlet pipe and the air outlet pipe and the mounting plate.

9. A gas permeability testing device, characterized in that, The package testing device, detection device, and second connecting pipe are as described in any one of claims 1-8. The second connecting pipe connects the package testing device and the detection device. The detection device has a first air supply channel, a first air collection channel, a second air supply channel, and a second air collection channel corresponding to the first air inlet, the first air outlet, the second air inlet channel, and the second air outlet channel in the package testing device.

10. The gas permeability testing device according to claim 9, characterized in that, The first gas supply channel and the second gas supply channel are respectively connected to the gas generation components for the test gas and the detection gas, and the first gas collection channel and the second gas collection channel are connected to a gas metering component.

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