Powder leakage detection equipment and detection method

Abstract

The invention provides powder leakage detection equipment and a detection method, and relates to the technical field of powder testing, and the powder leakage detection equipment comprises a containing assembly, a powder leakage part, a material storage part and a vibration assembly. The first shell and the second shell are oppositely arranged, the material storage part is located at one end of the second shell, the material storage part and the second shell are oppositely arranged in a spaced mode, and the vibration assembly is used for driving the containing assembly to generate vibration. At the first assembly position, the first shell and the second shell are detachably connected and define a containing cavity, the powder leakage piece is connected between the first shell and the second shell in an abutting mode and divides the containing cavity into a first cavity body and a second cavity body, the first cavity body is used for containing powder to be tested, and a discharging opening of the second cavity body corresponds to an input opening of the material storage piece. The powder dissipation state is simulated in the detection process, the powder leakage performance of different types of powder or different packaging materials can be quantitatively evaluated and researched, and then the powder leakage detection effect is improved.

Description

Technical Field

[0001] This invention relates to the field of powder testing technology, and more specifically, to a powder leakage detection device and detection method. Background Technology

[0002] Packaging materials containing powder have a microporous structure, which can easily lead to powder leakage during transportation, storage, or use. Therefore, leakage testing is necessary to assess the sealing performance of packaged products. Leakage testing methods include visual observation, dye penetration testing, weight difference testing, and high-pressure testing. Currently, leakage testing methods are not yet fully developed, affecting the accuracy of detection. Summary of the Invention

[0003] The purpose of this invention is to provide a powder leakage detection device and method that simulates the powder dispersion state during the detection process, enabling quantitative evaluation and research on the powder leakage performance of different types of powders or different packaging materials, thereby improving the powder leakage detection effect.

[0004] A first aspect of the present invention provides a powder leakage detection device, the powder leakage detection device comprising: The housing assembly includes a first housing and a second housing, wherein the first housing and the second housing are disposed opposite to each other. Powder leakage parts; A storage component is located at the end of the second housing away from the first housing. The storage component is disposed at a distance from the second housing and is located below the second housing. A vibration component is used to drive the housing component to vibrate; The receiving component has at least a first assembly position. When in the first assembly position, the first housing and the second housing are detachably connected and define a receiving cavity. The powder leakage component abuts between the first housing and the second housing, and the powder leakage component divides the receiving cavity into a first cavity and a second cavity. The first cavity is used to place the powder to be tested, and the outlet of the second cavity corresponds to the inlet of the storage component.

[0005] In one possible embodiment of the present invention, the second housing is provided with a limiting boss, the first housing is provided with a groove, the first housing is located above the second housing, the limiting boss is engaged with the groove, and the limiting boss is used to restrict the circumferential movement of the first housing so that the first housing is engaged with the second housing.

[0006] In one possible embodiment of the present invention, the limiting boss is an annular structure, and the corresponding groove is an annular groove.

[0007] In one possible embodiment of the present invention, the receiving component further includes a sample stage, the second housing is integrally disposed with the sample stage, and the height of the sample stage is H1, and the height of the limiting boss of the second housing is H2, satisfying: H1 < H2.

[0008] In one possible embodiment of the present invention, the powder leakage detection device further includes an adjustment assembly, which includes a slide rod assembly, a first adjustment support, and a second adjustment support. The first adjustment support is fixedly connected to the first housing, and the second adjustment support is fixedly connected to the second housing. The first adjustment support and the second adjustment support are arranged opposite to each other along a first direction. The slide rod assembly passes through the first adjustment support and the second adjustment support respectively, so that the first adjustment support and the second adjustment support are respectively close to or far from each other on the slide rod assembly. The first direction is the axial direction of the slide rod assembly.

[0009] In one possible embodiment of the present invention, both the first adjusting support and the second adjusting support include a support body and a locking member, the locking member being inserted through the support body and abutting or separating from the slide rod assembly.

[0010] In one possible embodiment of the present invention, the adjusting assembly further includes a connecting rod, which is arranged parallel to the slide rod assembly. One end of the connecting rod is fixedly connected to the second adjusting support, and the end of the connecting rod away from the second adjusting support is threadedly connected to the first adjusting support.

[0011] In one possible embodiment of the present invention, the powder leakage detection device further includes a buffer seat, the vibration assembly includes a control element and a vibrating element, the control element is electrically connected to the vibrating element, the vibrating element is connected to the slide rod assembly, and the vibrating element is located between the buffer seat and the slide rod assembly.

[0012] A second aspect of the present invention provides a detection method, which applies the powder leakage detection device described in any of the above embodiments, the detection method comprising: Obtain the initial weight of the storage component; Place the powder-extracting component between the first housing and the second housing, and adjust the positions of the first housing and the second housing to assemble and connect them; Add a pre-weighed amount of powder into the first housing, and start the vibration assembly to simulate the vibration of the housing assembly according to the preset vibration parameters; After the vibration is complete, weigh the storage unit, and calculate the powder leakage weight based on the initial weight of the storage unit, and then calculate the powder leakage rate. Clean the storage components, change the type of powder leakage component and / or change the type of pre-weighed powder; Repeat the above steps.

[0013] In one possible embodiment of the invention, when simulating vibration of the housing component, the vibration frequency is 20 Hz to 40 Hz and the amplitude is 1 mm to 2 mm.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a powder leakage detection device and detection method. When the receiving component is in the first assembly position, the first shell and the second shell are engaged to form a receiving cavity. The powder to be tested can be placed in the first cavity to simulate the powder dispersion state. The vibration component simulates the vibration generated by the powder to be tested during transportation. The powder will leak into the second cavity through the powder leakage component. The vibration generated by the vibration component facilitates the leakage of the powder to be tested from the first cavity to the second cavity. Then, it enters the storage component through the outlet of the second cavity. The storage component collects the dispersed powder for measurement and detection. The powder leakage component can be replaced with different types of products to realize quantitative evaluation and research on the powder leakage performance of different types of powder or different packaging materials, thereby improving the powder leakage detection effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the powder leakage detection device provided in some embodiments of the present invention; Figure 2 This is a partial structural schematic diagram of the powder leakage detection device provided in some embodiments of the present invention; Figure 3 This is a schematic diagram of a partial structure of the receiving component of a powder leakage detection device provided in some embodiments of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the receiving component of the powder leakage detection device provided in some embodiments of the present invention. Figure 2 ; Figure 5 This is a schematic flowchart of a detection method provided in some embodiments of the present invention.

[0017] Explanation of key component symbols; 100 - Powder leakage detection equipment; 110 - Receiving component; 111 - First housing; 1111 - Groove; 112 - Second housing; 1121 - Limiting boss; 113 - First cavity; 114 - Second cavity; 115 - Sample stage; 120 - Powder leakage component; 130 - Material storage component; 140 - Vibration component; 141 - Vibrating component; 142 - Control component; 150 - Adjustment component; 151 - Slide bar assembly; 152 - First adjustment support; 1521 - Support body; 1522 - Locking component; 153 - Second adjustment support; 154 - Connecting rod; 160 - Buffer seat. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] In related technologies, packaging materials containing powder have a microporous structure, which can easily lead to powder leakage during transportation, storage, or use. Therefore, powder leakage testing is necessary to assess the sealing performance of the packaged products. Leakage testing methods include visual observation, dye penetration testing, weight difference testing, and high-pressure testing. Currently, there are shortcomings in the powder leakage detection methods, affecting the accuracy of the detection.

[0026] To address the aforementioned technical issues, the detection process simulates the powder dispersion state, enabling quantitative assessment and research of the powder leakage performance of different types of powders or different packaging materials, thereby improving the effectiveness of powder leakage detection.

[0027] Please refer to Figure 1 As shown, in some embodiments, embodiments of this application provide a powder leakage detection device 100, which includes a receiving component 110, a powder leakage component 120, a material storage component 130, and a vibration component 140.

[0028] Specifically, such as Figure 1 As shown, the receiving assembly 110 includes a first housing 111 and a second housing 112, which are disposed opposite to each other. A storage element 130 is located at the end of the second housing 112 away from the first housing 111, and is disposed at a distance from the second housing. The storage element 130 is located below the second housing 112, with a certain gap between them, allowing material to leak from the second housing into the storage element. The storage element 130 is used to collect any loose powder for metering and testing. A vibration assembly 140 is used to drive the receiving assembly 110 to vibrate, simulating the vibration generated by the powder under test during transportation.

[0029] In this embodiment, the receiving component 110 has at least a first assembly position. When in the first assembly position, the first housing 111 and the second housing 112 are detachably connected and define a receiving cavity. The powder-extracting component 120 abuts between the first housing 111 and the second housing 112, and the powder-extracting component 120 divides the receiving cavity into a first cavity 113 and a second cavity 114. The first cavity 113 is used to place the powder to be tested, and the outlet of the second cavity 114 corresponds to the inlet of the storage component 130. When the receiving component 110 is in the first assembly position, the first housing 111 and the second housing 112 are detachably connected and define a receiving cavity. The two shells 112 are interlocked to form a receiving cavity. The powder to be tested can be placed in the first cavity 113 to simulate the powder dispersion state. The powder will seep into the second cavity 114 through the powder leakage component 120. The vibration component 140 generates vibration to facilitate the leakage of the powder to be tested from the first cavity 113 to the second cavity 114. Then, it enters the storage component 130 through the outlet of the second cavity 114. The powder leakage component 120 can be replaced with different types of products to realize the quantitative evaluation and study of the powder leakage performance of different types of powders or different packaging materials, thereby improving the detection effect of powder leakage.

[0030] like Figure 1 As shown, the powder leakage detection device 100 has a first direction X, a second direction Y, and a third direction Z, wherein the first direction X, the second direction Y, and the third direction Z are arranged perpendicularly to each other. For example, the first direction X refers to the height direction of the powder leakage detection device 100, the second direction Y refers to the length direction of the powder leakage detection device 100, and the third direction Z refers to the width direction of the powder leakage detection device 100. It is understood that the above definitions are only for ease of understanding the relative positional relationships of the various parts in the powder leakage detection device 100 and should not be construed as limitations on this application.

[0031] It is easy to understand that powder packaging products are often sealed using heat-sealable non-woven fabrics, permeable films, or fiber materials. Because these packaging materials have microporous or porous structures, bumps during transportation can cause powder to leak out, affecting product quality. The powder leakage detection device 100 in this application vibrates the powder under test using a vibration component 140 to simulate a real transportation scenario. The material of the powder leakage component 120 can be a flexible material such as heat-sealable non-woven fabric, permeable film, or fiber material, with a microporous structure, to facilitate the detection and evaluation of the powder leakage performance. Of course, the powder leakage detection device 100 can be used to detect and evaluate different types or sizes of powder.

[0032] In some embodiments, reference Figure 1 and Figure 3As shown, the second housing 112 is provided with a limiting boss 1121, and the first housing 111 is provided with a groove 1111. The first housing 111 is located above the second housing 112. The limiting boss 1121 is engaged with the groove 1111. The limiting boss 1121 is used to restrict the circumferential movement of the first housing 111 so that the first housing 111 and the second housing 112 are engaged. That is, the limiting boss 1121 on the second housing 112 is engaged in the groove 1111 of the first housing 111. The groove 1111 is used to circumferentially limit the limiting boss 1121, ensuring that the second housing 112 and the first housing 111 are assembled and positioned after sealing and engaging, ensuring that the relative position between the two is stable, and realizing the sealed connection between the second housing 112 and the first housing 111. This allows the test powder to be placed in the receiving component 110, preventing the test powder from leaking out from the connection gap during the test, thereby improving the powder leakage test effect.

[0033] For example, such as Figure 3 As shown, a first housing 111 and a second housing 112 are arranged sequentially along the first direction. The first housing 111 is located above the second housing 112. The first housing 111 is provided with a cover so that the cover can be opened to add the powder to be tested into the first housing 111. Under the combined action of the vibration component 140 and its own weight, the powder to be tested leaks from the first cavity 113 of the first housing 111 to the second cavity 114 of the second housing 112. The powder in the second cavity 114 is collected and the leakage rate is obtained by bearing the weight, so as to realize the powder leakage test of the packaged product containing powder.

[0034] Furthermore, such as Figure 3 and Figure 4 As shown, the limiting boss 1121 has an annular structure, and the corresponding groove 1111 is an annular groove 1111. The annular limiting boss 1121 fits into the annular groove 1111, achieving radial limiting between the first housing 111 and the second housing 112. In other words, after the limiting boss 1121 is embedded in the annular groove 1111, it restricts the first housing 111 from shifting or misaligning relative to the second housing 112 in the radial direction. The limiting boss 1121 of the first housing 111 and the annular groove 1111 of the second housing 112 are connected by an interference fit to ensure the connection sealing and assembly stability of the first housing 111 and the second housing 112.

[0035] In some embodiments, combined with Figure 1 and Figure 3As shown, the receiving assembly 110 also includes a sample stage 115. The second housing 112 is integrally formed with the sample stage 115, and the height of the sample stage 115 is H1. The height of the limiting boss 1121 of the second housing 112 is H2, satisfying: H1 < H2, that is, the height H1 of the sample stage 115 is less than the height H2 of the limiting boss 1121 of the second housing 112, so that the limiting boss 1121 of the second housing 112 can be more easily aligned and assembled with the first housing 111. The annular groove 1111 is formed. At this time, the powder leakage component 120 abuts against the limiting boss 1121 and the groove 1111. The powder leakage component 120 can seal the opening of the groove 1111, which is conducive to the smooth leakage of the powder to be tested through the powder leakage component 120, reducing the leakage of the powder to be tested. The second housing 112 and the first housing 111 are assembled and connected. The powder leakage component 120 abuts against the limiting boss 1121. In the process of multiple tests, it is convenient to replace different types of powder leakage components 120.

[0036] In some embodiments, reference Figure 1 and Figure 2 As shown, the powder leakage detection device 100 also includes an adjustment assembly 150. The adjustment assembly 150 includes a slide bar assembly 151, a first adjustment support 152, and a second adjustment support 153. The first adjustment support 152 is fixedly connected to the first housing 111, and the second adjustment support 153 is fixedly connected to the second housing 112. The first adjustment support 152 and the second adjustment support 153 are arranged opposite to each other along a first direction. The slide bar assembly 151 passes through the first adjustment support 152 and the second adjustment support 153 respectively, so that the first adjustment support 152 and the second adjustment support 153 are close to each other on the slide bar assembly 151. The first direction is the axial direction of the slide bar assembly 151. Correspondingly, the first adjusting support 152 is used to connect the first housing 111, and the second adjusting support 153 is used to connect the second housing 112. When the first adjusting support 152 and the second adjusting support 153 move relative to each other on the slide bar assembly 151, the first housing 111 and the second housing 112 can move closer to each other, or the first housing 111 and the second housing 112 can move further apart, so as to adjust the distance between the first housing 111 and the second housing 112, thereby realizing the assembly connection of the first housing 111 and the second housing 112.

[0037] For example, the first adjusting support 152 moves relative to the slide bar assembly 151 along the first direction, and the second adjusting support 153 moves relative to the slide bar assembly 151. The user can adjust the first adjusting support 152 and the second adjusting support 153 respectively to make the first housing 111 and the second housing 112 move relative to each other.

[0038] Furthermore, such as Figure 2As shown, both the first adjusting support 152 and the second adjusting support 153 include a support body 1521 and a locking member 1522. The locking member 1522 passes through the support body 1521 and abuts against or separates from the slide rod assembly 151. That is, the locking member 1522 extends to abut against the slide rod assembly 151, or the locking member 1522 retracts to separate from the slide rod assembly 151. The locking member 1522 can abut against the slide rod assembly 151 to position and fix the support body 1521, preventing the support body 1521 from moving or sliding after locking. Alternatively, the locking member 1522 can separate from the slide rod assembly 151 to adjust and change the position of the first adjusting support 152 or the second adjusting support 153.

[0039] In this embodiment, reference Figure 2 As shown, the adjustment assembly 150 also includes a connecting rod 154, which is arranged parallel to the slide rod assembly 151. One end of the connecting rod 154 is fixedly connected to the second adjustment support 153, and the other end of the connecting rod 154 away from the second adjustment support 153 is threadedly connected to the first adjustment support 152. Accordingly, the connecting rod 154 can adjust the position of the first adjustment support 152, allowing the first adjustment support 152 to move closer to or further away from the second adjustment support 153, thereby changing the relative distance between the first adjustment support 152 and the second adjustment support 153. This allows the first housing 111 and the second housing 112 to be sealed together or disassembled, thus limiting the relative movement of the first housing 111 and the second housing 112 along the first direction. In addition, after the connecting rod 154 is fixed, the first adjustment support 152 and the second adjustment support 153 can be moved relative to each other on the slide rod assembly 151 as a whole for adjustment, thereby adjusting the relative position between the receiving assembly 110 and the storage component 130, ensuring the flexibility of the adjustment assembly 150. For example, the connecting rod 154 can be a connecting screw, so that the connecting rod 154 and the first adjusting support 152 are connected by a thread to adjust the relative position of the first adjusting support 152 and the connecting rod 154.

[0040] In some embodiments, reference Figure 1As shown, the powder leakage detection device 100 also includes a buffer seat 160, and a vibration assembly 140 including a control element 142 and a vibrating element 141. The control element 142 is electrically connected to the vibrating element 141, and the vibrating element 141 is connected to the slide bar assembly 151. The vibrating element 141 is located between the buffer seat 160 and the slide bar assembly 151. The vibrating element 141 is used to generate vibration to simulate the transportation bumps of powder packaging products in a more realistic way. The buffer seat 160 supports the vibrating element 141 and the slide bar assembly 151 and can buffer the vibration generated by the vibrating element 141. The control element 142 is used for data acquisition and adjustment of the relevant parameters of the vibrating element 141. The type of the vibrating element 141 can be an electric vibrator, an electromagnetic vibrator, or a pneumatic vibrator, and no specific limitation is made here.

[0041] For example, the buffer seat 160 is provided with an opening, and the storage component 130 is located at the opening position, so as to form a clearance space at the opening position, avoiding the situation where the vibration of the buffer seat 160 affects the storage component 130, which has a better technical effect. Further, the buffer seat 160 is located below the receiving component 110.

[0042] In summary, when the receiving component 110 of the powder leakage detection device 100 is in the first assembly position, the first housing 111 and the second housing 112 are engaged to form a receiving cavity. The powder to be tested can be placed in the first cavity 113 to simulate the powder dispersion state. The vibration component 140 simulates the vibration generated by the powder to be tested during transportation. The powder will leak through the powder leakage component 120 into the second cavity 114. The vibration generated by the vibration component 140 facilitates the leakage of the powder to be tested from the first cavity 113 to the second cavity 114. Then, it enters the storage component 130 through the outlet of the second cavity 114. The storage component 130 collects the dispersed powder for measurement and detection. The powder leakage component 120 can be replaced with different types of products to realize quantitative evaluation and research on the powder leakage performance of different types of powders or different packaging materials, thereby improving the detection effect of powder leakage.

[0043] In related technologies, visual observation typically relies on the naked eye to observe whether powder seeps from the surface of packaged products containing powder. However, this method is highly susceptible to factors such as lighting, background, and personnel experience, making it subjective and difficult to detect trace amounts of powder leakage or powder adhering to the product material surface. The dyeing leakage method involves adding a colorant to the powder and observing the leakage location. While this enhances the ability to pinpoint the leak, it still cannot accurately quantify the total amount of leaked powder and poses the risk of sample contamination and interference with subsequent analysis. The weight difference method estimates the amount of powder leakage by comparing the total mass change of packaged products containing powder before and after packaging or transportation. However, this method has a large margin of error and is easily affected by environmental humidity, powder hygroscopicity, or uneven sealing, making it difficult to accurately distinguish between packaging defects and losses caused by other variables during use. While high-pressure or vacuum testing methods can be used to test the airtightness of closed systems, they cannot reflect the true powder dispersion behavior for permeable materials (such as non-fully barrier nonwoven fabrics). Furthermore, the above methods generally lack standardized testing equipment and procedures, making it difficult to unify testing conditions, resulting in poor repeatability and a lack of good process control and adaptability to diverse materials.

[0044] To solve the above problems, refer to Figure 5 As shown, an embodiment of this application provides a detection method, which uses the powder leakage detection device 100 described in any of the above embodiments. The detection method includes: S100: Obtain the initial weight of the storage component 130; S200: Place the powder-extracting component 120 between the first housing 111 and the second housing 112, and adjust the positions of the first housing 111 and the second housing 112 to assemble and connect them; S300: Add a pre-weighed amount of powder into the first housing 111, and start the vibration component 140 to simulate the vibration of the housing component 110 according to the preset vibration parameters; S400: After the vibration ends, weigh the storage unit 130, and calculate the powder leakage weight based on the initial weight of the storage unit 130, and calculate the powder leakage rate. S500: Clean the storage component 130, change the type of the powder leakage component 120 and / or change the type of pre-weighed powder; S600: Repeat the above operation steps.

[0045] Specifically, this detection method uses a powder leakage detection device 100 to detect powder leakage of the powder to be tested. The relative positions of the first housing 111 and the second housing 112 are adjusted to facilitate the placement of the powder leakage component 120. The powder to be tested is placed in the first cavity 113 of the first housing 111. According to preset vibration parameters, the vibration component 140 is activated to simulate vibration of the receiving component 110, so that the powder to be tested leaks through the powder leakage component 120 into the second cavity 114 of the second housing 112, and then enters the storage component 130 through the second cavity 114 of the second housing 112. After the vibration ends, the storage component 130 is weighed to obtain the powder leakage weight and calculate the powder leakage rate. After the test is completed, the type of the powder leakage component 120 can be changed, and / or the powder type of the powder to be tested can be changed to achieve the purpose of multiple powder leakage tests and improve the powder leakage detection efficiency.

[0046] Understandably, the powder leakage component 120, as a powder packaging material, causes the powder to leak from one side of the powder leakage component 120 to the other side during the vibration simulation process, so as to facilitate the weighing and calculation of the leaked powder.

[0047] In this application, three different particle sizes of the powder to be tested and three different types of powder leakage components 120 were used for powder leakage testing. Each group was tested three times, and the average powder leakage rate was taken, as shown in Table 1 below: Table 1:

[0048] The test results above indicate that the powder leakage component 120 is made of non-woven fabric. As the basis weight of the non-woven fabric increased from 28 g / m² to 35 g / m², the average powder leakage rate of the powder leakage component 120 sample decreased from approximately 3.0% to about 2.7%. This demonstrates that the higher the basis weight of the packaging material for the powder leakage component 120, the better its sealing performance, and thus the better its effect in suppressing powder escape. Furthermore, the test powders with different particle sizes (D50 of 200 μm, 150 μm, and 100 μm) exhibited significant differences in powder leakage rate under the same packaging conditions. The test powders with smaller particle sizes (e.g., 100 μm) were more prone to leakage, with an average leakage rate exceeding 3.3%, indicating stronger permeability. Referring to the standard deviation of the leaking powder component 120, the fluctuations in repeated test results among different combinations were all between ±0.05% and ±0.12%, indicating that the leak detection device 100 has good test stability and repeatability. The leakage rate of the tested powder varies significantly with different types of packaging materials and different powder particle sizes, indicating that the detection method has clear test discrimination and response sensitivity, and can effectively distinguish the superior and inferior packaging performance of different materials. The application of the leak detection device 100 demonstrates good operational accuracy, test result stability, and multi-parameter resolution capabilities, making it an important method for evaluating the sealing performance of different packaging materials. It has excellent leak detection effects, facilitating verification, screening, and product quality control during the development of new product packaging materials.

[0049] In some embodiments, when simulating vibration of the receiving component 110, the vibration frequency is 20Hz to 40Hz, and the amplitude is 1mm to 2mm. The vibration frequency can be any value between 20Hz and 40Hz and can be continuously adjusted. The amplitude can be any value between 1mm and 2mm and can be continuously adjusted. Accordingly, the vibration component 140 is activated to simulate vibration of the receiving component 110 according to preset vibration parameters. The vibration frequency range of 20Hz to 40Hz and the amplitude of 1.5mm are considered relatively high. A small vibration range, for example, the vibration frequency can be 20Hz, 30Hz, 35Hz, 40Hz, etc., and the amplitude can be 1.0mm, 1.2mm, 1.5mm, 2.0mm, etc., to simulate the vibration and bumping of the powder under test during transportation, ensuring the practicality of the test. This causes the powder under test within the containing component 110 to leak during vibration, facilitating leakage detection when the powder under test is applied to different types of leakage components 120 or powders of different particle sizes. This improves the detection range and accuracy, verifying the reliability of the powder packaging product. For example, the vibration frequency is 30Hz and the amplitude is 1.5mm. In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0050] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A powder leakage detection device, characterized in that, include: The housing assembly (110) includes a first housing (111) and a second housing (112), wherein the first housing (111) and the second housing (112) are disposed opposite to each other; Powder-leaking component (120); A storage component (130) is located at one end of the second housing (112) away from the first housing (111). The storage component (130) is disposed at a distance from the second housing (112) and is located below the second housing (112). A vibration assembly (140) is used to drive the receiving assembly (110) to vibrate; The receiving component (110) has at least a first assembly position. When in the first assembly position, the first housing (111) and the second housing (112) are detachably connected and define a receiving cavity. The powder leakage component (120) abuts between the first housing (111) and the second housing (112), and the powder leakage component (120) divides the receiving cavity into a first cavity (113) and a second cavity (114). The first cavity (113) is used to place the powder to be tested, and the outlet of the second cavity (114) corresponds to the inlet of the storage component (130).

2. The powder leakage detection device according to claim 1, characterized in that, The second housing (112) is provided with a limiting boss (1121), and the first housing (111) is provided with a groove (1111). The first housing (111) is located above the second housing (112). The limiting boss (1121) is engaged with the groove (1111). The limiting boss (1121) is used to restrict the circumferential movement of the first housing (111) so that the first housing (111) and the second housing (112) are engaged.

3. The powder leakage detection device according to claim 2, characterized in that, The limiting boss (1121) is a ring structure, and the corresponding groove (1111) is a ring groove (1111).

4. The powder leakage detection device according to claim 2, characterized in that, The receiving component (110) further includes a sample stage (115), the second housing (112) is integrally formed with the sample stage (115), and the height of the sample stage (115) is H1, and the height of the limiting boss (1121) of the second housing (112) is H2, satisfying: H1 < H2.

5. The powder leakage detection device according to any one of claims 1 to 4, characterized in that, It also includes an adjustment assembly (150), which includes a slide rod assembly (151), a first adjustment support (152), and a second adjustment support (153). The first adjustment support (152) is fixedly connected to the first housing (111), and the second adjustment support (153) is fixedly connected to the second housing (112). The first adjustment support (152) and the second adjustment support (153) are arranged opposite to each other along a first direction. The slide rod assembly (151) passes through the first adjustment support (152) and the second adjustment support (153) respectively, so that the first adjustment support (152) and the second adjustment support (153) are respectively close to each other or far away from each other on the slide rod assembly (151). The first direction is the axial direction of the slide rod assembly (151).

6. The powder leakage detection device according to claim 5, characterized in that, Both the first adjusting support (152) and the second adjusting support (153) include a support body (1521) and a locking member (1522). The locking member (1522) passes through the support body (1521) and abuts or separates from the slide rod assembly (151).

7. The powder leakage detection device according to claim 5, characterized in that, The adjustment assembly (150) further includes a connecting rod (154), which is arranged parallel to the slide rod assembly (151). One end of the connecting rod (154) is fixedly connected to the second adjustment support (153), and the end of the connecting rod (154) away from the second adjustment support (153) is threadedly connected to the first adjustment support (152).

8. The powder leakage detection device according to claim 5, characterized in that, It also includes a buffer seat (160), and the vibration assembly (140) includes a control element (142) and a vibrating element (141). The control element (142) is electrically connected to the vibrating element (141), the vibrating element (141) is connected to the slide rod assembly (151), and the vibrating element (141) is located between the buffer seat (160) and the slide rod assembly (151).

9. A detection method, wherein the detection method applies the powder leakage detection device (100) according to any one of claims 1 to 8, characterized in that, The detection method includes: Obtain the initial weight of the storage component (130); Place the powder-extracting component (120) between the first housing (111) and the second housing (112), and adjust the positions of the first housing (111) and the second housing (112) to assemble and connect them; Add a pre-weighed amount of powder into the first housing (111), and start the vibration component (140) to simulate the vibration of the housing component (110) according to the preset vibration parameters; After the vibration ends, weigh the storage component (130), and calculate the powder leakage weight based on the initial weight of the storage component (130) and the powder leakage rate. Clean the storage component (130), change the type of the powder leakage component (120) and / or change the type of pre-weighed powder; Repeat the above steps.

10. The detection method according to claim 9, characterized in that, When the receiving component (110) is subjected to vibration simulation, the vibration frequency is 20Hz to 40Hz and the amplitude is 1mm to 2mm.

Images