Cosmetic container gas permeability tester

Abstract

The invention relates to the field of barrier property detection, and particularly discloses a cosmetic container gas permeability tester which comprises a preheating bin, the preheating bin is provided with a pressurization bin communicated with the preheating bin, the pressurization bin is communicated with a detection bin, and a clamping device used for clamping a film packaging bag is arranged between the pressurization bin and the detection bin. And a preheating assembly is arranged on the preheating bin. The gas permeability of the film packaging bag is measured by using a pressure difference method, the temperature of the pressurization bin is controlled according to the temperature change of the pressurization bin, the phenomenon of temperature rise caused by pressurization is effectively controlled, the increase of the molecular diffusion rate is avoided, and the consistency of the temperatures on the two sides of the film packaging bag is ensured, so that the detection error is reduced, and the detection accuracy is improved. The detection accuracy is improved, the detection precision is improved, the heat preservation effect on the heat preservation bin can be achieved, the large temperature difference of temperature change of the pressurization bin is avoided, the temperature consistency of the pressurization bin, the preheating bin and the detection bin is improved, and the stability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of barrier property testing, and in particular to a gas permeability tester for cosmetic containers. Background Art

[0002] Cosmetic containers are containers used to package and store various cosmetics. They not only have good sealing, stability and safety, but also protect the contents from external environmental factors. Gas permeability is the rate at which gases such as oxygen and carbon dioxide pass through a material. During cosmetic production, it is necessary to improve the preservation quality and extend the shelf life of cosmetics. When packaging cosmetics, plastic bottles or bags are generally used for storage. Therefore, it is necessary to study the gas permeability of packaging containers to improve the quality of cosmetic containers.

[0003] Existing patent CN216411003U discloses a gas permeability meter, comprising a body, a display screen, a main control chip disposed within the body, and a test chamber disposed on the top of the body. The main control chip is electrically connected to a pressure differential control module and an electromagnetic temperature control module. The test chamber consists of an upper pressure chamber and a lower pressure chamber. A pressure sensor and a temperature sensor are disposed on the inner sidewall of the upper pressure chamber, and a pressure sensor is disposed on the inner sidewall of the lower pressure chamber. Both the pressure sensor and the temperature sensor are electrically connected to the main control chip. By disposing the pressure sensor and the temperature sensor on the inner sidewall of the upper pressure chamber, and providing a limited outlet valve and a pressure differential control module electrically connected to the limited outlet valve, the limited outlet valve is operated through feedback from the pressure sensor, thereby controlling the pressure differential between the upper and lower pressure chambers to achieve a constant pressure stable state and reduce experimental errors.

[0004] For film packaging containers, in the above structure, the gas permeability can be measured by using the pressure difference. However, in the process of testing the gas permeability of film bags, since the pressure difference method is used for measurement and the gas is gradually filled, the control of temperature and pressure is more important. When measuring, it is necessary to control the temperature of the environment using the control variable method, and then test the gas permeability by filling the gas. When the gas is filled, the pressure gradually increases to form a high pressure. Since the volume remains unchanged, the internal temperature will increase, which is not conducive to the control effect of the temperature. It is easy to accelerate the diffusion speed of molecules, resulting in an increase in gas permeability, causing errors in the detection, thereby reducing the accuracy and precision of the detection.

[0005] Therefore, how to provide a gas permeability tester for cosmetic containers is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] One object of the present invention is to provide a gas permeability tester for cosmetic containers. The gas permeability tester for cosmetic containers according to the present invention comprises a preheating chamber, wherein the preheating chamber is provided with a pressurizing chamber connected to the preheating chamber, wherein the pressurizing chamber is connected to a detection chamber, wherein a clamping device for clamping a film packaging bag is provided between the pressurizing chamber and the detection chamber, wherein the preheating chamber is provided with a preheating component, wherein the pressurizing chamber is provided with a heat preservation chamber, wherein a pushing component is provided in the heat preservation chamber, wherein the pushing component is provided with an expansion component located in the pressurizing chamber, wherein the heat preservation chamber is provided with a clamping device for clamping a film packaging bag in the heat preservation chamber, wherein the preheating chamber is provided with a preheating component, wherein the pressurizing chamber is provided with a heat preservation chamber, wherein the heat preservation ... A transmission component connected to the heat preservation chamber is provided, an adjustment component connected to the transmission component is provided in the heat preservation chamber, a support component is provided on the adjustment component, a temperature control component is provided on the support component, a low-temperature supply component is provided on the heat preservation chamber, and the temperature control component is connected to the preheating component through the low-temperature supply component, a heat conduction component is provided between the pressurizing chamber and the heat preservation chamber, and the heat conduction component exchanges heat with the temperature control component; wherein, when the temperature of the pressurizing chamber is high, the temperature control component is controlled to be close to the heat conduction component, so that the temperature control component lowers the temperature in the pressurizing chamber to achieve temperature regulation.

[0007] Preferably, the preheating component includes a heat exchange chamber arranged on the preheating chamber, the heat exchange chamber exchanges heat with the preheating chamber, the heat exchange chamber is connected to a high-temperature liquid storage tank, a preheating circulation pump is provided on the heat exchange chamber, the input end of the preheating circulation pump is connected to the heat exchange chamber, the output end of the preheating circulation pump is provided with a preheating pipe connected to the high-temperature liquid storage tank, and a solenoid valve 1 is installed on the preheating pipe.

[0008] Preferably, the pushing assembly includes a pushing cylinder arranged in the heat preservation chamber, a pushing piston is arranged in the pushing cylinder, a pushing rod passing through the pushing cylinder is arranged on the pushing piston, and a pushing spring is arranged between the pushing cylinder and the pushing piston and is sleeved on the outer ring of the pushing rod.

[0009] Preferably, the expansion assembly includes a heat-conducting rod arranged on the pushing cylinder, a heat-conducting probe is provided at the end of the heat-conducting rod, the heat-conducting probe is provided in the pressurized chamber, and an expansion airbag is provided at the other end of the heat-conducting rod, and the expansion airbag is provided in the pushing cylinder.

[0010] Preferably, the transmission assembly includes a transmission spur rack arranged on the push rod, the bearing in the insulation bin is connected to a transmission rod, the fixed sleeve on the transmission rod is provided with a transmission gear meshing with the transmission spur rack, and the fixed sleeve on the transmission rod is provided with an active bevel gear.

[0011] Preferably, the adjustment assembly includes a threaded rod connected to the heat preservation chamber by a bearing, a guide rod is provided in the heat preservation chamber, a bearing plate is threadedly connected to the threaded rod, the thread of the threaded rod passes through the bearing plate, the guide rod passes through the bearing plate, and the threaded rod is connected to a driven bevel gear meshing with the driving bevel gear.

[0012] Preferably, the temperature control component includes a temperature control output pipe and a temperature control input pipe arranged in the insulation chamber, and multiple cross tubes are provided on the temperature control output pipe and the temperature control input pipe. The cross tube is provided with a liquid distribution pipe passing through the supporting plate, and a heat exchange pipe is connected between the two liquid distribution pipes.

[0013] Preferably, the support assembly includes a support outer cylinder arranged on the supporting plate, a support inner rod penetrating the support outer cylinder is arranged on the heat exchange tube, and a support spring is arranged between the support outer cylinder and the heat exchange tube and is sleeved on the outer ring of the support inner rod.

[0014] Preferably, the low-temperature supply component includes a low-temperature liquid storage tank arranged on the insulation warehouse, a low-temperature circulation pump is installed on the insulation warehouse, the input end of the low-temperature circulation pump is connected to the low-temperature liquid storage tank, the output end of the low-temperature circulation pump is connected with a connecting pipe 1, the connecting pipe 1 is connected with the preheating pipe and the temperature control input pipe, a solenoid valve 2 is installed on the connecting pipe 1 between the preheating pipe and the temperature control input pipe, a solenoid valve 3 is installed on the connecting pipe 1 between the low-temperature circulation pump and the temperature control input pipe, a connecting pipe 2 is connected between the high-temperature liquid storage tank and the low-temperature liquid storage tank, the temperature control output pipe is connected to the connecting pipe 2, a solenoid valve 4 is installed on the connecting pipe 2 between the high-temperature liquid storage tank and the temperature control output pipe, and a solenoid valve 5 is installed on the connecting pipe 2 between the low-temperature liquid storage tank and the temperature control output pipe.

[0015] Preferably, the heat conduction component includes a heat conduction plate arranged on the pressurized chamber, a heat sink is arranged on the heat conduction plate located in the heat preservation chamber, and a heat conduction sheet is arranged on the heat conduction plate located in the pressurized chamber.

[0016] The beneficial effects of the present invention are as follows: When testing the film packaging bag of cosmetics, the present invention forces the testing chamber to evacuate air to form a low pressure, uses a clamping device to clamp the film packaging bag to be tested, fills the gas into the preheating chamber, uses the preheating component to perform heat exchange on the preheating chamber, forces the preheating chamber to preheat the filled gas, and when the required temperature is reached, the gas in the preheating chamber enters the pressurizing chamber. Since the pressure in the testing chamber is lower than that in the pressurizing chamber and the film packaging bag is air permeable, the gas in the pressurizing chamber slowly enters the testing chamber through the film packaging bag, and the amount and concentration of the gas entering the testing chamber are measured by relevant testing equipment. The temperature of the film packaging bag is controlled during the test, and the pressure difference on both sides of the film packaging bag and the time are detected and recorded, so as to calculate the gas permeability. When the pressurized chamber is filled with gas, the pressure of the pressurized chamber increases, which will cause the temperature of the pressurized chamber to rise. The temperature needs to be controlled to ensure that the temperature on both sides of the film packaging bag is consistent. The increase in the temperature of the pressurized chamber causes the expansion component to move, which drives the push component to move. Under the action of the transmission component, the adjustment component is forced to move, and the adjustment component drives the support component to move, forcing the support component to move. Drive the temperature control component to contact the heat conduction component, and at the same time control the low temperature supply component to be connected with the temperature control component, forcing the low temperature supply component to provide cooling liquid, so that the temperature control component takes away the heat of the heat conduction component, thereby effectively reducing the temperature of the pressurized chamber; when the temperature of the pressurized chamber tends to the required temperature, the preheating component is connected with the temperature control component, forcing the preheating component to provide the required temperature to the temperature control component. While the preheating component preheats the preheating chamber, it forms an insulation effect on the insulation chamber, thereby ensuring the stability of the temperature of the pressurized chamber and realizing the function of regulating the temperature of the pressurized chamber; In summary, a kind of The cosmetic container gas permeability tester uses the pressure differential method to measure the gas permeability of film packaging bags. It controls the temperature of the pressurizing chamber according to the temperature changes of the pressurizing chamber itself, effectively controlling the phenomenon of temperature rise caused by pressurization, avoiding the acceleration of the molecular diffusion rate, and ensuring the temperature consistency on both sides of the film packaging bag, thereby reducing detection errors and improving detection accuracy. It can also achieve a thermal insulation effect on the insulation chamber, avoiding large temperature differences in the pressurizing chamber, improving the temperature consistency of the pressurizing chamber, preheating chamber and detection chamber, and improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a three-dimensional structural entity diagram of the present invention; Figure 2 A top view of the present invention; Figure 3 It is a physical diagram of the internal structure of the present invention; Figure 4This is a diagram showing the connection between the preheating component and the low-temperature supply component of the present invention; Figure 5 It is a partial structural entity diagram of the present invention; Figure 6 A structural entity diagram of the transmission assembly of the present invention; Figure 7 A structural entity diagram of the expansion assembly of the present invention; Figure 8 A diagram showing the connection between the adjustment assembly and the support assembly of the present invention; Figure 9 It is a structural entity diagram of the temperature control component of the present invention; Figure 10 It is a front view of the heat conducting component of the present invention.

[0018] In the figure: 1. Preheating chamber; 2. Pressurizing chamber; 3. Detection chamber; 4. Clamping device; 5. Preheating assembly; 501. Heat exchange chamber; 502. High-temperature liquid storage tank; 503. Preheating circulation pump; 504. Preheating pipe; 505. Solenoid valve 1; 6. Insulation chamber; 7. Pushing assembly; 701. Pushing cylinder; 702. Pushing piston; 703. Pushing rod; 704. Pushing spring; 8. Expansion assembly; 801. Heat-conducting rod; 802. Heat-conducting probe; 803. Expansion airbag; 9. Transmission assembly; 901. Transmission spur rack; 902. Transmission rod; 903. Transmission gear; 904. Active bevel gear; 10. Adjustment assembly; 1001. Threaded rod; 1002. Guide rod; 1003 , bearing plate; 1004, driven bevel gear; 11, support assembly; 1101, support outer cylinder; 1102, support inner rod; 1103, support spring; 12, temperature control assembly; 1201, temperature control output pipe; 1202, temperature control input pipe; 1203, cross pipe; 1204, liquid distribution pipe; 1205, heat exchange pipe; 13, low-temperature supply assembly; 1301, low-temperature liquid storage tank; 1302, low-temperature circulation pump; 1303, connecting pipe one; 1304, solenoid valve two; 1305, solenoid valve three; 1306, connecting pipe two; 1307, solenoid valve four; 1308, solenoid valve five; 14, heat conduction assembly; 1401, heat conduction plate; 1402, heat sink; 1403, heat conduction sheet. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner. Example

[0020] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, a gas permeability tester for cosmetic containers of the present invention comprises a preheating chamber 1, which is provided with a pressurizing chamber 2 connected to the preheating chamber 1, which is connected to a detection chamber 3, and a clamping device 4 for clamping a film packaging bag is provided between the pressurizing chamber 2 and the detection chamber 3, wherein the clamping device 4 is a prior art, the pressurizing chamber 2 and the detection chamber 3 are connected through two sealed pipes, and the film packaging bag is clamped between the two sealed pipes by screws and nuts. The gas in the pressurizing chamber 2 permeates the film packaging bag and enters the detection chamber 3, and the detection equipment is used to detect the amount and concentration of the gas entering the detection chamber 3, the pressure difference between the two sides of the film packaging bag, and the time, so as to calculate the gas permeability. The preheating chamber 1 is provided with a preheating component 5, and the pressurizing chamber 2 is provided with a heat preservation chamber 6. A pushing component 7 is provided in the warm chamber 6, and an expansion component 8 located in the pressurized chamber 2 is provided on the pushing component 7. The heat-insulating chamber 6 is provided with a transmission component 9 connected to the pushing component 7. An adjusting component 10 connected to the transmission component 9 is provided in the heat-insulating chamber 6, and a supporting component 11 is provided on the adjusting component 10. A temperature control component 12 is provided on the supporting component 11. A low-temperature supply component 13 is provided on the heat-insulating chamber 6, and the temperature control component 12 is connected to the preheating component 5 through the low-temperature supply component 13. A heat-conducting component 14 is provided between the pressurized chamber 2 and the heat-insulating chamber 6, and the heat-conducting component 14 exchanges heat with the temperature control component 12; wherein, when the temperature of the pressurized chamber 2 is high, the temperature control component 12 is controlled to be close to the heat-conducting component 14, so that the temperature control component 12 lowers the temperature in the pressurized chamber 2 to achieve temperature regulation.

[0021] Working principle: When testing the film packaging bag of cosmetics, the testing chamber 3 is forced to evacuate air to form a low pressure, and the film packaging bag to be tested is clamped by the clamping device 4, and the gas is filled into the preheating chamber 1. The preheating component 5 is used to exchange heat with the preheating chamber 1, forcing the preheating chamber 1 to preheat the filled gas. When the required temperature is reached, the gas in the preheating chamber 1 enters the pressurized chamber 2. Since the pressure in the testing chamber 3 is lower than that in the pressurized chamber 2, and the film packaging bag is air permeable, the gas in the pressurized chamber 2 slowly enters the testing chamber 3 through the film packaging bag, and the relevant testing equipment is used to measure the amount and concentration of the gas entering the testing chamber 3. , the pressure difference and time on both sides of the film packaging bag are detected and recorded, so as to calculate the gas permeability; because in the detection process, it is necessary to control the temperature on both sides of the film packaging bag, and when the pressurizing chamber 2 is filled with gas, the pressure of the pressurizing chamber 2 increases, which will cause the temperature of the pressurizing chamber 2 to rise. It is necessary to control the temperature to ensure that the temperature on both sides of the film packaging bag is consistent. Due to the increase in the temperature of the pressurizing chamber 2, the expansion component 8 is activated, which drives the pushing component 7 to move. Under the action of the transmission component 9, the adjustment component 10 is forced to move, and the adjustment component 10 drives the support component 11 to move, forcing the support component 11 to drive The temperature control component 12 is in contact with the heat conducting component 14, and at the same time controls the low temperature supply component 13 to be connected with the temperature control component 12, forcing the low temperature supply component 13 to provide coolant, so that the temperature control component 12 takes away the heat of the heat conducting component 14, thereby effectively reducing the temperature of the pressurized chamber 2; when the temperature of the pressurized chamber 2 approaches the required temperature, the preheating component 5 is connected with the temperature control component 12, forcing the preheating component 5 to provide the required temperature to the temperature control component 12. While the preheating component 5 preheats the preheating chamber 1, it also forms a heat preservation effect on the heat preservation chamber 6, thereby ensuring the stability of the temperature of the pressurized chamber 2 and achieving the function of regulating the temperature of the pressurized chamber 2; In summary, the present application provides a gas permeability meter for cosmetic containers, which uses a differential pressure method to measure the gas permeability of film packaging bags. The temperature of the pressurizing chamber 2 is controlled according to the temperature change of the pressurizing chamber 2 itself, effectively controlling the phenomenon of temperature rise due to pressurization, avoiding accelerating the rate of molecular diffusion, and ensuring that the temperature on both sides of the film packaging bag is consistent, thereby reducing detection errors, improving detection accuracy, and improving detection precision. It can also achieve a thermal insulation effect on the insulation chamber 6, avoiding large temperature differences in the pressurizing chamber 2, improving the temperature consistency of the pressurizing chamber 2, the preheating chamber 1, and the detection chamber 3, and improving the stability of the device. Example

[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, a cosmetic container gas permeability measuring instrument of the present invention comprises a preheating assembly 5 including a heat exchange chamber 501 disposed on a preheating chamber 1. The heat exchange chamber 501 exchanges heat with the preheating chamber 1. The heat exchange chamber 501 is connected to a high-temperature liquid storage tank 502. A preheating circulation pump 503 is disposed on the heat exchange chamber 501. The input end of the preheating circulation pump 503 is connected to the heat exchange chamber 501. The output end of the preheating circulation pump 503 is provided with a preheating pipe 504 connected to the high-temperature liquid storage tank 502. A solenoid valve 505 is installed on the preheating pipe 504.

[0023] like Figure 3 、 Figure 5 and Figure 6 As shown, in a gas permeability tester for cosmetic containers of the present invention, a pushing assembly 7 includes a pushing cylinder 701 disposed in a heat-insulating chamber 6 , a pushing piston 702 disposed in the pushing cylinder 701 , a pushing rod 703 penetrating the pushing cylinder 701 disposed on the pushing piston 702 , and a pushing spring 704 sleeved on the outer ring of the pushing rod 703 disposed between the pushing cylinder 701 and the pushing piston 702 .

[0024] like Figure 3 、 Figure 5 and Figure 7 As shown, in a cosmetic container gas permeability measuring instrument of the present invention, the expansion assembly 8 includes a heat-conducting rod 801 disposed on a pushing cylinder 701. A heat-conducting probe 802 is disposed at one end of the heat-conducting rod 801. The heat-conducting probe 802 is disposed in the pressurizing chamber 2. An expansion airbag 803 is disposed at the other end of the heat-conducting rod 801. The expansion airbag 803 is disposed in the pushing cylinder 701.

[0025] like Figure 5 and Figure 6 As shown, a gas permeability tester for cosmetic containers of the present invention comprises a transmission assembly 9 including a spur gear rack 901 mounted on a push rod 703. A transmission rod 902 is connected to a bearing in the heat preservation chamber 6. A transmission gear 903 is fixedly sleeved on the transmission rod 902 and meshes with the spur gear rack 901. A driving bevel gear 904 is also fixedly sleeved on the transmission rod 902.

[0026] like Figure 3 、 Figure 5 and Figure 8 As shown, a gas permeability tester for cosmetic containers of the present invention includes an adjustment assembly 10 including a threaded rod 1001 connected by a bearing within a heat preservation chamber 6. A guide rod 1002 is provided within the heat preservation chamber 6. A support plate 1003 is threadedly connected to the threaded rod 1001. The threaded rod 1001 threads through the support plate 1003. The guide rod 1002 penetrates the support plate 1003. A driven bevel gear 1004 is connected to the threaded rod 1001 and meshes with the driving bevel gear 904.

[0027] like Figure 5 and Figure 9 As shown, in a gas permeability meter for cosmetic containers of the present invention, the temperature control assembly 12 includes a temperature control output pipe 1201 and a temperature control input pipe 1202 disposed within the heat preservation chamber 6. Both the temperature control output pipe 1201 and the temperature control input pipe 1202 are provided with multiple transverse pipes 1203. Each transverse pipe 1203 is provided with a liquid separation pipe 1204 that passes through the carrier plate 1003. A heat exchange pipe 1205 is connected between the two liquid separation pipes 1204.

[0028] like Figure 5 and Figure 8 As shown, a cosmetic container gas permeability tester of the present invention comprises a support assembly 11 including a support outer cylinder 1101 disposed on a carrier plate 1003, a support inner rod 1102 penetrating the support outer cylinder 1101 disposed on a heat exchange tube 1205, and a support spring 1103 disposed between the support outer cylinder 1101 and the heat exchange tube 1205 and sleeved on the outer ring of the support inner rod 1102.

[0029] like Figure 2 、 Figure 3 and Figure 4 As shown, a gas permeability measuring instrument for cosmetic containers of the present invention includes a low-temperature assembly 13 comprising a low-temperature liquid storage tank 1301 disposed on a heat preservation chamber 6. A low-temperature circulation pump 1302 is mounted on the heat preservation chamber 6. The input end of the low-temperature circulation pump 1302 is connected to the low-temperature liquid storage tank 1301. The output end of the low-temperature circulation pump 1302 is connected to a connecting pipe 1303. The connecting pipe 1303 is connected to the preheating pipe 504 and the temperature control input pipe 1202. A solenoid valve 1302 is mounted on the connecting pipe 1303 between the preheating pipe 504 and the temperature control input pipe 1202. 04, a solenoid valve three 1305 is installed on the connecting pipe one 1303 between the low-temperature circulation pump 1302 and the temperature control input pipe 1202, a connecting pipe two 1306 is connected between the high-temperature liquid storage tank 502 and the low-temperature liquid storage tank 1301, the temperature control output pipe 1201 is connected to the connecting pipe two 1306, a solenoid valve four 1307 is installed on the connecting pipe two 1306 between the high-temperature liquid storage tank 502 and the temperature control output pipe 1201, and a solenoid valve five 1308 is installed on the connecting pipe two 1306 between the low-temperature liquid storage tank 1301 and the temperature control output pipe 1201.

[0030] like Figure 3 、 Figure 5 and Figure 10 As shown, in a cosmetic container gas permeability tester of the present invention, the heat conducting assembly 14 includes a heat conducting plate 1401 disposed on the pressurized chamber 2, a heat sink 1402 disposed on the heat conducting plate 1401 located in the heat preservation chamber 6, and a heat conducting sheet 1403 disposed on the heat conducting plate 1401 located in the pressurized chamber 2.

[0031] Working principle: When testing the film packaging bags of cosmetics, the testing chamber 3 is forced to evacuate air to form a low pressure, the film packaging bag to be tested is clamped by the clamping device 4, and the gas is filled into the preheating chamber 1. The solenoid valve 2 1304 and the solenoid valve 4 1307 are disconnected, the solenoid valve 1 505 is opened, and the preheating circulation pump 503 is started, forcing the liquid in the heat exchange chamber 501 to enter the preheating pipe 504 and the high-temperature liquid storage tank 502. The liquid is heated by the high-temperature liquid storage tank 502, forcing the liquid to heat up and maintain a constant temperature, and then entering the heat exchange chamber 501, forming a preheating closed loop. Heat is exchanged between the heat exchange chamber 501 and the preheating chamber 1, and the gas in the preheating chamber 1 is continuously preheated. When the required temperature is reached, the preheating chamber 1 is connected to the pressurizing chamber 2, so that the gas in the preheating chamber 1 enters the pressurizing chamber 2. Since the pressure in the detection chamber 3 is lower than that in the pressurizing chamber 2, and the film packaging bag is air-permeable, the gas in the pressurizing chamber 2 slowly enters the detection chamber 3 through the film packaging bag. The amount and concentration of gas entering the detection chamber 3, the pressure difference on both sides of the film packaging bag, and the time are detected and recorded using relevant detection equipment, and the gas permeability is calculated to achieve the measurement of the gas permeability of the film packaging bag. Since it is necessary to control the temperature on both sides of the film packaging bag during the detection process, and when the pressurizing chamber 2 is filled with gas, the pressure in the pressurizing chamber 2 increases, which will cause the temperature of the pressurizing chamber 2 to rise. It is necessary to control the temperature to ensure that the temperature on both sides of the film packaging bag is consistent. Due to the increase in the temperature of the pressurizing chamber 2, the heat conduction effect of the heat conductive probe 802 and the heat conductive rod 801 transfers the high temperature to the expansion airbag 803, forcing the expansion airbag 803 to expand, forcing the space in the pushing cylinder 701 to decrease, so that the pressure in the pushing cylinder 701 increases, forcing the pushing piston 702 to drive the pushing rod 703 to move, pushing the spring 704 to compress, and the pushing rod 703 drives the transmission spur rack 901 to move, forcing the transmission spur rack 901 to drive the transmission gear 903 to rotate, and the transmission gear 903 drives the transmission rod 902 to rotate. 2 drives the active bevel gear 904 to rotate, and the rotation of the active bevel gear 904 drives the driven bevel gear 1004 to rotate, and the rotation of the driven bevel gear 1004 drives the threaded rod 1001 to rotate. Under the action of the guide rod 1002, the threaded rod 1001 is forced to drive the bearing plate 1003 to move, so that the bearing plate 1003 approaches the heat sink 1402. The bearing plate 1003 drives the supporting outer cylinder 1101, the supporting inner rod 1102, the supporting spring 1103, the liquid dispensing tube 1204 and the heat exchange tube 1205 to approach the heat sink 1402. When the heat exchange tube 1205 contacts the heat sink 1402, the supporting inner rod 1102 slides in the supporting outer cylinder 1101, and the supporting spring 1103 is compressed, thereby preventing the heat exchange tube 1205 from hard contact with the heat sink 1402, thereby effectively protecting the heat exchange tube 1205 and the heat sink 1402. At the same time, close the solenoid valve 2 1304 and the solenoid valve 4 1307, open the solenoid valve 3 1305 and the solenoid valve 5 1308, start the low-temperature circulation pump 1302, the low-temperature circulation pump 1302 guides the coolant in the low-temperature liquid storage tank 1301 into the connecting pipe 1 1303, and guides the coolant into the cross pipe 1203, the liquid distribution pipe 1204 and the heat exchange pipe 1205 through the temperature control input pipe 1202. The heat exchange pipe 1205 exchanges heat with the heat sink 1402, and the coolant is transferred to the cooling fin 1402 through the liquid distribution pipe 1204, the cross pipe 1203 and the temperature control output pipe 1201. The liquid is introduced into the low-temperature liquid storage tank 1301, and the low-temperature liquid storage tank 1301 is used to cool the coolant, forming a cooling closed loop to achieve cooling of the heat sink 1402. Through the action of the heat conducting plate 1401 and the heat conducting plate 1403, the heat of the pressurized chamber 2 is continuously transferred to the heat exchange tube 1205. The heat exchange tube 1205 takes away the heat, forcing the temperature of the pressurized chamber 2 to drop to the required temperature, thereby effectively lowering the temperature of the pressurized chamber 2. At the same time, the preheating component 5 preheats the preheating chamber 1, and the preheating component 5 and the low-temperature supply component 13 can work independently. When the temperature of the pressurized chamber 2 approaches the required temperature, the solenoid valve 1 505, the solenoid valve 3 1305 and the solenoid valve 5 1308 are disconnected, and the solenoid valve 2 1304 and the solenoid valve 4 1307 are opened. At this time, the preheating circulation pump 503 introduces the liquid in the heat exchange chamber 501 into the connecting pipe 1 1303, the temperature control input pipe 1202, the liquid distribution pipe 1204, the cross pipe 1203 and the heat exchange pipe 1205, and then introduces it into the high-temperature liquid storage tank 502 through the liquid distribution pipe 1204, the cross pipe 1203, the temperature control output pipe 1201 and the connecting pipe 2 1306, and then enters the heat exchange chamber 501 to form a closed loop. After the heat exchange pipe 1205 exchanges heat with the heat sink 1402, the temperature of the coolant in the heat exchange pipe 1205 increases. When the coolant is introduced into the high-temperature liquid storage tank 502, the coolant is heated to the required temperature. The cooling liquid has a certain temperature, which is conducive to heating the cooling liquid. At this time, the heat exchange chamber 501 continuously preheats the preheating chamber 1. At the same time, since the liquid in the heat exchange tube 1205 has a temperature, the temperature in the insulation chamber 6 is consistent with the temperature of the heat exchange chamber 501, so that the insulation chamber 6 transfers the heat to the pressurizing chamber 2 through the heat conducting plate 1401, the heat conducting sheet 1403 and the heat sink 1402. The gas in the pressurizing chamber 2 is introduced from the preheating chamber 1, so the temperatures of the pressurizing chamber 2, the preheating chamber 1 and the heat exchange chamber 501 are consistent. Under the experimental environment, the temperature change of the detection chamber 3 is small, so the temperature difference between the pressurizing chamber 2 and the detection chamber 3 is reduced, and the temperature on both sides of the film packaging bag is ensured to be consistent, thereby achieving the insulation effect of the insulation chamber 6, ensuring that the temperature of the pressurizing chamber 2 remains stable, and completing the temperature control operation of the pressurizing chamber 2; On the one hand, this solution uses the pressure difference method to measure the gas permeability of the film packaging bag, and controls the temperature of the pressurized chamber 2 according to the temperature change of the pressurized chamber 2 itself, effectively controls the phenomenon of temperature rise caused by pressurization, avoids accelerating the rate of molecular diffusion, and ensures that the temperature on both sides of the film packaging bag is consistent, thereby reducing detection errors, improving detection accuracy, and improving detection precision; on the other hand, it can achieve an insulation effect on the heat preservation chamber 6, avoid large temperature differences in the pressurized chamber 2, and improve the temperature consistency of the pressurized chamber 2, the preheating chamber 1 and the detection chamber 3, thereby improving the stability of the device.

[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cosmetic container gas permeability tester, characterized in that: The invention comprises a preheating chamber (1), wherein the preheating chamber (1) is provided with a pressurizing chamber (2) connected to the preheating chamber (1), the pressurizing chamber (2) is connected to a detection chamber (3), a clamping device (4) for clamping a film packaging bag is provided between the pressurizing chamber (2) and the detection chamber (3), a preheating component (5) is provided on the preheating chamber (1), a heat preservation chamber (6) is provided on the pressurizing chamber (2), a pushing component (7) is provided in the heat preservation chamber (6), an expansion component (8) located in the pressurizing chamber (2) is provided on the pushing component (7), the heat preservation chamber (6) is provided with a transmission component (9) connected to the pushing component (7), and a regulating component (9) is provided in the heat preservation chamber (6). A regulating component (10) is provided on the regulating component (10), a supporting component (11) is provided on the supporting component (11), a temperature control component (12) is provided on the heat preservation chamber (6), a low temperature supply component (13) is provided on the heat preservation chamber (6), the temperature control component (12) is communicated with the preheating component (5) through the low temperature supply component (13), a heat conduction component (14) is provided between the pressurizing chamber (2) and the heat preservation chamber (6), and the heat conduction component (14) exchanges heat with the temperature control component (12); wherein, when the temperature of the pressurizing chamber (2) is high, the temperature control component (12) is controlled to be close to the heat conduction component (14), so that the temperature control component (12) lowers the temperature in the pressurizing chamber (2) to achieve temperature regulation.

2. The cosmetic container gas permeability tester according to claim 1, characterized in that: The preheating assembly (5) includes a heat exchange chamber (501) arranged on the preheating chamber (1), the heat exchange chamber (501) exchanges heat with the preheating chamber (1), the heat exchange chamber (501) is connected to a high-temperature liquid storage tank (502), a preheating circulation pump (503) is provided on the heat exchange chamber (501), the input end of the preheating circulation pump (503) is connected to the heat exchange chamber (501), and the output end of the preheating circulation pump (503) is provided with a preheating pipe (504) connected to the high-temperature liquid storage tank (502), and a solenoid valve (505) is installed on the preheating pipe (504).

3. The cosmetic container gas permeability tester according to claim 2, characterized in that: The pushing assembly (7) comprises a pushing cylinder (701) arranged in the heat-insulating chamber (6), a pushing piston (702) being arranged in the pushing cylinder (701), a pushing rod (703) penetrating the pushing cylinder (701) being arranged on the pushing piston (702), and a pushing spring (704) being arranged between the pushing cylinder (701) and the pushing piston (702) and being sleeved on the outer ring of the pushing rod (703).

4. The cosmetic container gas permeability tester according to claim 3, characterized in that: The expansion assembly (8) includes a heat-conducting rod (801) arranged on the pushing cylinder (701), a heat-conducting probe (802) is arranged at the end of the heat-conducting rod (801), and the heat-conducting probe (802) is arranged in the pressurized chamber (2); the other end of the heat-conducting rod (801) is provided with an expansion airbag (803), and the expansion airbag (803) is arranged in the pushing cylinder (701).

5. The cosmetic container gas permeability tester according to claim 3, characterized in that: The transmission assembly (9) comprises a transmission spur rack (901) arranged on the push rod (703); a bearing in the heat preservation chamber (6) is connected to a transmission rod (902); a fixed sleeve on the transmission rod (902) is provided with a transmission gear (903) meshing with the transmission spur rack (901); and a fixed sleeve on the transmission rod (902) is provided with an active bevel gear (904).

6. The cosmetic container gas permeability tester according to claim 5, characterized in that: The adjustment assembly (10) comprises a threaded rod (1001) connected to the heat preservation chamber (6) by a bearing, a guide rod (1002) being provided in the heat preservation chamber (6), a bearing plate (1003) being threadedly connected to the threaded rod (1001), the threaded rod (1001) passing through the bearing plate (1003), the guide rod (1002) passing through the bearing plate (1003), and a driven bevel gear (1004) meshing with the driving bevel gear (904) being connected to the threaded rod (1001).

7. The cosmetic container gas permeability tester according to claim 6, characterized in that: The temperature control component (12) comprises a temperature control output pipe (1201) and a temperature control input pipe (1202) arranged in the heat preservation chamber (6); a plurality of transverse pipes (1203) are provided on the temperature control output pipe (1201) and the temperature control input pipe (1202); a liquid distribution pipe (1204) passing through the supporting plate (1003) is provided on the transverse pipe (1203); a heat exchange pipe (1205) is connected between the two liquid distribution pipes (1204).

8. The cosmetic container gas permeability tester according to claim 7, characterized in that: The support assembly (11) comprises a support outer cylinder (1101) arranged on the supporting plate (1003), a support inner rod (1102) penetrating the support outer cylinder (1101) is arranged on the heat exchange tube (1205), and a support spring (1103) sleeved on the outer ring of the support inner rod (1102) is arranged between the support outer cylinder (1101) and the heat exchange tube (1205).

9. The cosmetic container gas permeability tester according to claim 7, characterized in that: The low-temperature supply component (13) includes a low-temperature liquid storage tank (1301) arranged on the heat preservation chamber (6), a low-temperature circulation pump (1302) is installed on the heat preservation chamber (6), the input end of the low-temperature circulation pump (1302) is connected to the low-temperature liquid storage tank (1301), the output end of the low-temperature circulation pump (1302) is connected to a connecting pipe (1303), the connecting pipe (1303) is connected to the preheating pipe (504) and the temperature control input pipe (1202), the connecting pipe (1303) is located between the preheating pipe (504) and the temperature control input pipe (1202) and a solenoid valve (1304) is installed on the connecting pipe (1303), and the connecting pipe (1303) is connected to the preheating pipe (504) and the temperature control input pipe (1202). ) is provided with a solenoid valve three (1305) between the low-temperature circulation pump (1302) and the temperature control input pipe (1202), a connecting pipe two (1306) is connected between the high-temperature liquid storage tank (502) and the low-temperature liquid storage tank (1301), the temperature control output pipe (1201) is connected to the connecting pipe two (1306), a solenoid valve four (1307) is provided on the connecting pipe two (1306) between the high-temperature liquid storage tank (502) and the temperature control output pipe (1201), and a solenoid valve five (1308) is provided on the connecting pipe two (1306) between the low-temperature liquid storage tank (1301) and the temperature control output pipe (1201).

10. The cosmetic container gas permeability tester according to claim 1, characterized in that: The heat conduction assembly (14) comprises a heat conduction plate (1401) arranged on the pressurized chamber (2), a heat sink (1402) is arranged on the heat conduction plate (1401) and located in the heat preservation chamber (6), and a heat conduction plate (1403) is arranged on the heat conduction plate (1401) and located in the pressurized chamber (2).

Images