A non-orthophenyl plasticizer detection device for white spirit contact materials and a use method thereof

Abstract

The present application relates to the technical field of high polymer material detection, in particular to a non-orthophenyl plasticizer detection device for liquor contact materials and a use method, the device comprises a shell, a sealing cover is sealed on the top of the shell, a first fixing mechanism for clamping block samples and a second fixing mechanism for fixing film samples are arranged at the center of the sealing cover; a rotating disc is rotatably arranged in the shell, a crushing mechanism for crushing block samples and film samples is arranged at the center of the rotating disc; the rotating disc is funnel-shaped, a grinding mechanism for grinding the crushed samples is arranged in the rotating disc; a particle detection mechanism for detecting the uniformity of the crushed samples is arranged at the bottom of the rotating disc. The present application is used for crushing and pretreating different plastic samples or rubber samples, ensuring the uniformity of the crushed particles, and facilitating subsequent gas chromatography-mass spectrometry analysis.

Description

Technical Field

[0001] This invention relates to the field of polymer material testing technology, specifically to a non-phthalic plasticizer testing device and its usage method for materials that come into contact with liquor. Background Technology

[0002] In the production of baijiu (Chinese liquor), various plastic or rubber products are commonly used, such as receiving barrels, conveying pipes, plastic buckets, plastic inner caps for packaging, and sealing gaskets. To achieve elasticity and flexibility, plastic and rubber products typically require the addition of plasticizers. Phthalate plasticizers, in particular, are endocrine disruptors and pose significant health risks; their addition to food is prohibited. Therefore, non-phthalate plasticizers are now widely used as substitutes.

[0003] However, most non-phthalic plasticizers, like phthalate plasticizers, are lipophilic compounds. When these plasticizers come into contact with baijiu (Chinese liquor), the non-phthalic plasticizers decompose and migrate into the ethanol. Existing detection methods utilize gas chromatography-mass spectrometry (GC-MS), which offers reliable results, rapid analysis, and high sensitivity, as described in the existing literature "Ran Yifan, He Cheng, Wang Ming, et al. Simultaneous determination of 13 non-phthalate plasticizers in strong-aroma baijiu by gas chromatography-mass spectrometry [J]. China Brewing, 2025, 44(5): 266-272." However, a drawback is that it is difficult to analyze substances that are non-volatile, thermally unstable, and have a large relative molecular mass. Therefore, pretreatment of the baijiu food contact materials is necessary. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a non-phthalic plasticizer detection device and method for materials in contact with liquor, which enables the pretreatment of different plastic or rubber samples by crushing to ensure the uniformity of crushed particles and facilitate subsequent gas chromatography-mass spectrometry analysis.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: a non-phthalic plasticizer detection device for liquor contact materials, comprising a housing, a sealing cover sealed on the top of the housing, and a first fixing mechanism for clamping block samples and a second fixing mechanism for fixing film samples at the center of the sealing cover;

[0006] A turntable is rotatably fitted inside the housing, and a crushing mechanism for crushing block samples and thin film samples is provided at the center of the turntable;

[0007] The inside of the turntable is funnel-shaped, and a grinding mechanism for grinding and crushing samples is installed inside the turntable;

[0008] The bottom of the turntable is equipped with a particle detection mechanism for detecting the uniformity of the crushed sample.

[0009] Furthermore, a mounting hole is provided at the center of the sealing cover, and a mounting bracket is fixedly connected around the mounting hole, with the mounting bracket located inside the housing;

[0010] The first fixing mechanism includes an electric actuator threadedly connected to the mounting bracket, a clamping block fixedly connected to the output end of the electric actuator, and bolts for fixing the block sample threadedly connected around the clamping block;

[0011] The second fixing mechanism includes a processing rod that slides with the mounting bracket. The thin film sample is wound around the processing rod. A handle is fixedly connected to one end of the processing rod. The length of the handle is greater than the diameter of the mounting hole. The diameter of the processing rod near the bottom of the housing is smaller than the diameter of the processing rod near the handle.

[0012] Furthermore, the crushing mechanism includes a first cutter and a second cutter that are detachably connected to the center of the turntable. Both the first cutter and the second cutter include a base block, which is threadedly connected to the turntable.

[0013] The first cutting tool includes a drill bit located at the center and a first cutting blade arranged in a ring around the drill bit, wherein the height of the top of the first cutting blade is less than the height of the top of the drill bit;

[0014] The second tool includes several support blocks that rotate with the base block. Each support block is fixedly connected with a fan-shaped second blade. When adjacent second blades come into contact, the second blades form a ring. The inner diameter of the second blade is smaller than the outer diameter of the machining rod.

[0015] A top block is fixedly connected to the end of the machining rod away from the handle, and a mating cavity corresponding to the top block is opened at the center of the second tool;

[0016] When the top block is inside the mating cavity, the top block abuts against the support block, the support block is located at the bottom of the mating cavity, and the second blade abuts against the machining rod; when the top block is outside the mating cavity, the top block separates from the support block, the support block is located above the mating cavity, and the second blade separates from the machining rod.

[0017] Furthermore, the processing rod has several annular grooves corresponding to the second blade at one end near the top block, and a separation groove runs through the adjacent annular grooves, with a cutting blade slidingly fitted inside the separation groove;

[0018] The end of the cutting blade away from the processing rod is rotatably engaged with the mounting bracket. The end of the cutting blade near the processing rod is hinged to a connecting rod. The connecting rod is slidably engaged with the mounting bracket and the sealing cover. A magnetic ring is fixedly connected to the end of the connecting rod away from the cutting blade. The magnetic ring is slidably engaged with the sealing cover. A magnet block for attracting the magnetic ring is fixedly connected to the handle.

[0019] When the handle is above the sealing cap and the magnet on the handle generates an attractive force that overcomes the gravity of the connecting rod, the cutting blade is located inside the separation groove; when the handle is above the sealing cap and the magnet on the handle generates an attractive force that does not overcome the gravity of the connecting rod, the cutting blade is located outside the separation groove.

[0020] Furthermore, an inclined stacking surface is fixedly connected to the top of the turntable, and the height of the stacking surface near the center of the turntable is lower than the height of the stacking surface away from the center of the turntable.

[0021] The grinding mechanism includes a sliding block and several grinding rollers. The sliding block is slidably engaged with the mounting frame, and a bracket is connected between the sliding block and the grinding rollers. The bracket is rotatably engaged with the grinding rollers, and several protrusions are fixedly connected to the surface of the grinding rollers.

[0022] The testing mechanism includes an adsorption plate and an operating module located on the stacked surface. A display panel is located on one side of the housing. One end of the adsorption plate is rotatably engaged with the stacked surface. A testing chamber is located between the adsorption plate and the stacked surface. An LED light is installed on the adsorption plate. A camera for taking real-time pictures is installed in the testing chamber. The operating module obtains the projected area of ​​all broken samples based on the real-time pictures and obtains the maximum projected area. The maximum projected area is highlighted and sent to the display panel.

[0023] A locking block is fixedly connected to the side of the adsorption plate away from the rotation point between the adsorption plate and the stacking surface. The locking block is in the shape of a right trapezoid. A blocking block is provided in the stacking surface to prevent the locking block from moving. A support block is fixedly connected to the end of the blocking block away from the locking block. The support block slides with the stacking surface and is fitted with a spring. An electromagnet for supporting the block is fixedly connected to the side of the stacking surface corresponding to the support block. The electromagnet is electrically connected to the running module.

[0024] When the electromagnet is activated, it attracts the support block, overcoming the resistance of the spring and causing the blocking block to separate from the locking block; when the electromagnet is deactivated, the compressed spring releases its elasticity, maintaining the support block and locking block in contact.

[0025] Furthermore, the number of protrusions on the grinding roller increases sequentially from bottom to top.

[0026] Furthermore, the turntable is equipped with a conveying mechanism for pumping organic solvents. The conveying mechanism includes a liquid storage chamber inside the turntable for storing organic solvents. The liquid storage chamber is equipped with a water pump for pumping organic solvents. The output end of the water pump is connected to a nozzle, and the nozzle is arranged towards the center of the first and second cutters.

[0027] Furthermore, a sealing ring is fixedly connected to the side of the sealing cover near the housing;

[0028] The top of the housing is fitted with several L-shaped fixing blocks, which are arranged in a ring around the sealing cover.

[0029] Furthermore, a method for using a non-phthalic plasticizer detection device for liquor contact materials, applied to the above-mentioned method for using a non-phthalic plasticizer detection device for liquor contact materials, includes the following steps: Step 1: According to the type of the sample to be tested, select the first fixing mechanism and the second fixing mechanism according to the shape classification of block samples and film samples;

[0030] Step 2: If the sample to be tested is a block sample of hard plastic or rubber, select an appropriate bolt to clamp it on the clamping block according to the diameter of the sample to be tested, and install the first cutter at the center of the turntable, then proceed to Step 3.

[0031] If the sample to be tested is a thin film sample, wrap the thin film sample around the processing rod and install the second tool at the center of the turntable, then proceed to step four;

[0032] Step 3: Rotate the fixing block to fix the sealing cover. Set the working parameters according to the specific type of block sample. The working parameters include the turntable speed, the height of the sliding rod on the grinding mechanism in the mounting frame, and the pushing speed of the electric push rod. At the same time, depending on the specific type of block sample, inject organic solvent into the liquid storage chamber in advance, or inject cryogenic liquid nitrogen into the shell through the sealing cover and connecting pipe to perform environmental cooling treatment. During the execution of the working parameters, start the water pump to spray organic solvent onto the surface of the first cutter. Observe the size of the broken sample on the display panel to confirm whether the broken sample meets the expectations, and manually adjust the working parameters. After the working parameters are completed, open the sealing cover and take out the broken block sample.

[0033] Step 4: Rotate the fixing block to fix the sealing cover, push the handle to abut against the top of the sealing cover, keep the separation groove on the processing rod aligned with the cutting blade, start the turntable to drive the second blade to rotate; after the turntable stops rotating, use the handle to vertically remove the processing rod, then open the sealing cover and remove the broken film sample.

[0034] Furthermore, in step three, if the block sample is rubber, the organic solvent in the storage chamber is a pre-cooled liquid.

[0035] The above approach has the following beneficial effects:

[0036] 1. This solution improves the adaptability of the device to different sample boxes and film samples by selecting appropriate installation methods for different samples to be tested. The clamping mechanism provides stable clamping to meet the stable processing needs of different plastic or rubber samples, thereby fulfilling the pre-treatment requirements for crushing various plastic or rubber samples.

[0037] 2. In this scheme, the turntable rotates continuously, causing the crushing mechanism to rotate around the sealing cover. The particle detection mechanism measures and determines the uniformity of the crushed particles to see if the expected particle size has been achieved. The funnel-shaped turntable then collects the small pieces crushed by the crushing mechanism for subsequent soaking in organic solvents for gas chromatography-mass spectrometry analysis.

[0038] 3. For block samples, this scheme utilizes the continuous rotation of the turntable to keep the crushed sample at the top of the turntable in continuous contact with the grinding mechanism, so as to further disperse the block sample, ensure the uniformity of the crushed particles, and facilitate subsequent gas chromatography-mass spectrometry analysis. Attached Figure Description

[0039] Figure 1 This is an isometric view of an embodiment of the non-phthalic plasticizer detection device for liquor contact materials of the present invention;

[0040] Figure 2 for Figure 1 Top view;

[0041] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0042] Figure 4 for Figure 3 A schematic diagram of the first cutting tool in the middle;

[0043] Figure 5 This is an isometric view of the machining rod installation in another embodiment of the present invention;

[0044] Figure 6 for Figure 5 Top view;

[0045] Figure 7 for Figure 6 Cross-sectional view along the BB direction;

[0046] Figure 8 for Figure 7 A magnified schematic diagram of part E in the middle;

[0047] Figure 9 for Figure 7 A schematic diagram of the second cutting tool;

[0048] Figure 10 for Figure 9 Top view;

[0049] Figure 11 for Figure 10 A cross-sectional schematic diagram;

[0050] Figure 12 for Figure 11A schematic diagram of the rotation of the central support block;

[0051] Figure 13 for Figure 7 Schematic diagram of the installation of the machining rod and the sealing cap;

[0052] Figure 14 for Figure 13 Top view;

[0053] Figure 15 for Figure 14 A schematic cross-sectional view along the DD direction;

[0054] Figure 16 for Figure 15 A magnified schematic diagram of a local part of F;

[0055] Figure 17 for Figure 3 A partial cross-sectional view of the location of the adsorption plate.

[0056] The reference numerals in the accompanying drawings of the instruction manual include: 1. Housing; 11. Fixing block; 12. Motor; 2. Sealing cover; 21. Sealing ring; 22. Mounting bracket; 23. Mounting hole; 24. Magnetic ring; 25. Connecting rod; 26. Cutting blade; 3. Turntable; 31. Stacking surface; 32. Liquid storage chamber; 33. Nozzle; 34. Adsorption plate; 35. Detection chamber; 4. Electric actuator; 41. Clamping block; 5. Grinding roller; 51. Sliding block; 6. First cutting tool; 61. Drill bit; 62. First blade; 7. Second cutting tool; 71. Support block; 72. Second blade; 73. Mating cavity; 8. Processing rod; 81. Handle; 82. Top block; 83. Separation groove; 84. Annular groove; 9. Camera; 91. Locking block; 92. Blocking block; 93. Electromagnet. Detailed Implementation

[0057] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] 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. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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.

[0060] The following detailed description illustrates the specific implementation method:

[0061] Example 1:

[0062] As attached Figure 1 As shown: A non-phthalic plasticizer testing device for materials in contact with liquor includes a housing 1, a sealing cap 2 sealed on the top of the housing 1, and a sealing ring 21 fixedly connected to the side of the sealing cap 2 near the housing 1. The sealing ring 21, made of rubber, can both reduce the impact force of the sealing cap 2 placed on the housing 1 and enhance the airtightness between the sealing cap 2 and the housing 1, thereby improving the sealing effect inside the housing 1.

[0063] The sealing cover 2 has a mounting hole 23 at its center. A mounting bracket 22 is fixedly connected around the mounting hole 23. The mounting bracket 22 is located inside the housing 1. The sealing cover 2 has a first fixing mechanism for clamping block samples and a second fixing mechanism for fixing thin film samples at its center.

[0064] Combination such as Figures 1 to 8 As shown, the first fixing mechanism includes an electric actuator 4 threadedly connected to the mounting bracket 22. The output end of the electric actuator 4 is fixedly connected to a clamping block 41. Bolts for fixing the block sample are threaded around the clamping block 41. In another embodiment, a slider is slidably fitted at the bottom of the clamping block 41. The slider is arranged in a fan shape with the clamping block 41 as the center. The slider contacts the block sample at the center to maintain the stability of the block sample during processing.

[0065] The second fixing mechanism includes a processing rod 8 that slides with the mounting bracket 22. The film sample is wrapped around the processing rod 8. One end of the processing rod 8 is fixedly connected to a figure-eight shaped handle 81. The length of the handle 81 is greater than the diameter of the mounting hole 23. The diameter of the processing rod 8 near the bottom of the housing 1 is smaller than the diameter of the processing rod 8 near the handle 81.

[0066] A turntable 3 is rotatably fitted inside the housing 1. A crushing mechanism for crushing block samples and thin film samples is provided at the center of the turntable 3. A motor 12 is fixedly connected to the center of the housing 1. The output shaft of the motor 12 is fixedly connected to the turntable 3 so that the turntable 3 can be continuously rotated inside the housing 1 by the continuous rotation of the motor 12.

[0067] Combination such as Figure 4 , Figures 9 to 12 As shown, the crushing mechanism includes a first cutter 6 and a second cutter 7 that are detachably connected to the center of the turntable 3. Both the first cutter 6 and the second cutter 7 include a base block, which is threadedly connected to the turntable 3.

[0068] The first cutting tool 6 includes a drill bit 61 located at the center and first blades 62 arranged in a ring around the drill bit 61, and the top height of the first blades 62 is less than the top height of the drill bit 61; the second cutting tool 7 includes several support blocks 71 that rotate with the base block, and each support block 71 is fixedly connected with a fan-shaped second blade 72. When adjacent second blades 72 are in contact, the second blades 72 form a ring; and the inner diameter of the second blades 72 is less than the outer diameter of the machining rod 8.

[0069] A top block 82 is fixedly connected to the end of the machining rod 8 away from the handle 81. A mating cavity 73 corresponding to the top block 82 is opened at the center of the second cutting tool 7. When the top block 82 is located in the mating cavity 73, the top block 82 abuts against the support block 71, the support block 71 is located at the bottom of the mating cavity 73, and the second cutting tool 72 abuts against the machining rod 8. When the top block 82 is located outside the mating cavity 73, the top block 82 separates from the support block 71, the support block 71 is located above the mating cavity 73, and the second cutting tool 72 separates from the machining rod 8.

[0070] The inside of the turntable 3 is funnel-shaped, and a grinding mechanism for grinding and crushing samples is provided inside the turntable 3. An inclined stacking surface 31 is fixedly connected to the top of the turntable 3. The height of the stacking surface 31 near the center of the turntable 3 is lower than the height of the stacking surface 31 away from the center of the turntable 3. The grinding mechanism includes a sliding block 51 and several grinding rollers 5. The sliding block 51 is slidably engaged with the mounting frame 22, and a bracket is connected between the sliding block 51 and the grinding rollers 5. The bracket is rotatably engaged with the grinding rollers 5, and several protrusions are fixedly connected to the surface of the grinding rollers 5.

[0071] Combination such as Figure 17As shown, the bottom of the turntable 3 is provided with a particle detection mechanism for detecting the uniformity of the crushed sample; the particle detection mechanism includes an adsorption plate 34 opened on the stacking surface 31 and an operating module. A display panel (not shown in the figure) is provided on one side of the housing 1. One end of the adsorption plate 34 is rotatably engaged with the stacking surface 31. A detection cavity 35 is provided between the adsorption plate 34 and the stacking surface 31. An LED light (not shown in the figure) is provided on the adsorption plate (34). A camera 9 for taking real-time pictures is provided in the detection cavity 35. The operating module obtains the projected area of ​​all crushed samples based on the real-time pictures and obtains the maximum projected area. The maximum projected area is highlighted and sent to the display panel.

[0072] A locking block 91 is fixedly connected to the side of the adsorption plate 34 away from the rotation point between the adsorption plate 34 and the stacking surface 31. The locking block 91 is a right trapezoid. A blocking block 92 is provided in the stacking surface 31 to prevent the locking block 91 from moving. A support block is fixedly connected to the end of the blocking block 92 away from the locking block 91. The support block slides with the stacking surface 31, and a spring (not shown in the figure) is sleeved on the support block. An electromagnet 93 for adsorbing the blocking block 92 is fixedly connected to the side of the stacking surface 31 corresponding to the support block. The electromagnet 93 is electrically connected to the running module.

[0073] When the electromagnet 93 is activated, the electromagnet 93 attracts the blocking block 92, which overcomes the resistance of the spring and causes the blocking block 92 to separate from the locking block 91; when the electromagnet 93 is deactivated, the compressed spring releases its elastic force to maintain the blocking block 92 and the locking block 91 in opposition.

[0074] In some other embodiments, the broken sample inside the detection chamber is photographed directly by replacing it with a camera with one that has a high image resolution, and then the real-time image is sent to the display panel for highlighting.

[0075] In other embodiments, to reduce the impact of continuous rotation of the turntable on the real-time image capture, the opening of the detection chamber (35) is set to face the opposite direction of the turntable's rotation. This allows the adsorption plate (34) to close when the grinding roller contacts the adsorption plate (34). Meanwhile, as the turntable rotates the broken sample, the broken sample can only enter the detection chamber (35) along the sides or rear of the adsorption plate (34), reducing the amount of broken sample entering the detection chamber (35) and allowing the real-time image to accurately display the size of the broken sample.

[0076] The specific implementation process is as follows:

[0077] Before use, select either the electric actuator 4 or the processing rod 8 as the basic installation tool according to the type of sample to be tested. Place the block sample at the center of the clamping block 41 and clamp it with bolts. Connect the electric actuator 4 to the sealing cover 2 to install the block sample. For film samples, wrap the film sample around the surface of the processing rod 8, and then hold the handle 81 to move the processing rod 8 into the mounting hole 23. Use the difference between the diameter of the handle 81 and the diameter of the mounting hole 23 to engage the processing rod 8 with the surface of the sealing cover 2, so that the film sample on the processing rod 8 is installed inside the housing 1.

[0078] In another embodiment, to ensure the stability of the sealing cover 2 on the housing 1, a number of L-shaped fixing blocks 11 are rotatably fitted on the top of the housing 1. The fixing blocks 11 are arranged in a ring around the sealing cover 2. The fixing blocks 11 lock the sealing cover 2 in place, thereby limiting the sealing cover 2 to be securely locked onto the housing 1 and improving the sealing performance during the internal processing of the housing 1.

[0079] In another embodiment, to reduce the falling of the thin film sample wrapped on the processing rod 8, a retaining ring (not shown in the figure) is engaged on the processing rod 8, and the retaining ring is flush with the surface of the processing rod 8. The retaining ring fixes the two ends of the thin film sample on the processing rod 8 to reduce the sliding of the thin film sample on the processing rod 8.

[0080] During the processing, the arrangement of the first cutting tool 6 allows the block sample on the clamping block 41 to continuously approach the first cutting tool 6 as the electric push rod 4 pushes it. The turntable 3 drives the first cutting tool 6 to rotate. First, the drill bit 61 of the first cutting tool 6 cuts and drills a hole in the center of the block sample. Then, the first blades 62 around the block sample cut the periphery of the block sample, so that the hollow block sample can fall off. This creates a double space for heat dissipation inside and outside the block sample, reducing the heat accumulation during the processing of the block sample and its impact on the material of the sample itself.

[0081] By setting the second cutter 7, during the installation of the processing rod 8, the contact between the top block 82 on one side of the processing rod 8 and the support block 71 causes the top block 82 to push the support block 71 to rotate. When the top block 82 is inside the mating cavity 73, the second blade 72 on the support block 71 maintains contact with the surface of the processing rod 8 to form an annular cutting surface, thereby performing annular cutting on the thin film sample wrapped on the surface of the processing rod 8 and meeting the requirement for uniform cutting of the thin film sample. When the top block 82 is above the mating cavity 73, the weight of the support block 71 drives the support block 71 to rotate around the rotation point relative to the base, so that the second blade 72 on the support block 71 no longer contacts the processing rod 8, facilitating the removal of the processing rod 8 from the inside of the housing 1.

[0082] During subsequent processing, the accumulation surface 31 at the top of the turntable 3 forms a funnel-shaped converging effect, facilitating the collection and processing of the broken sample. Simultaneously, the sliding block 51 slides on the surface of the mounting frame 22 to adjust the distance between the grinding roller 5 and the accumulation surface 31, thereby adjusting the contact effect of the grinding roller 5 with the broken sample at the top of the turntable 3. As the turntable 3 continues to rotate, the protrusions on the grinding roller 5 roll and squeeze the broken sample, facilitating further crushing and separation of the broken sample, thus enabling subsequent gas chromatography-mass spectrometry analysis.

[0083] Simultaneously, the operation of the electromagnet 93 is manually controlled (e.g., by using touch control on the display panel's touchscreen to control the start of the electromagnet 93). When the electromagnet 93 is started, the adsorption blocking block 92 overcomes the resistance of the spring, causing the blocking block 92 to separate from the locking block 91. The adsorption plate 34 is no longer restrained by the blocking block 92, thus exposing the internal detection chamber 35 (in some other embodiments, a torsion spring can be set at the rotation point between the adsorption plate 34 and the stacking surface 31, so that the adsorption plate 34 can open the detection chamber 35 by the opening of the torsion spring). This allows the broken sample inside the turntable 3 to enter the detection chamber 35 for measuring the particle size of the broken sample. The real-time image and the maximum projected area are displayed on the display panel, facilitating the adjustment of working parameters and ensuring the uniformity of the broken particles.

[0084] Example 2:

[0085] The difference from Example 1 is that, combined with Figures 13 to 16 As shown, the processing rod 8 has several annular grooves 84 corresponding to the second blade 72 at one end near the top block 82, and a separation groove 83 runs through the adjacent annular grooves 84. A cutting blade 26 is slidably fitted in the separation groove 83.

[0086] The end of the cutting blade 26 away from the processing rod 8 is rotatably engaged with the mounting bracket 22. The end of the cutting blade 26 near the processing rod 8 is hinged to a connecting rod 25. The connecting rod 25 is slidably engaged with the mounting bracket 22 and the sealing cover 2. The end of the connecting rod 25 away from the cutting blade 26 is fixedly connected to a magnetic ring 24. The magnetic ring 24 is slidably engaged with the sealing cover 2. A magnet block for attracting the magnetic ring 24 is fixedly connected to the handle 81.

[0087] When the handle 81 is above the sealing cover 2 and the magnet on the handle 81 generates an attractive force that overcomes the gravity of the connecting rod 25, the cutting blade 26 is located inside the separation groove 83; when the handle 81 is above the sealing cover 2 and the magnet on the handle 81 generates an attractive force that does not overcome the gravity of the connecting rod 25, the cutting blade 26 is located outside the separation groove 83.

[0088] The specific implementation process is as follows: The cutting blade 26 is used to cut the film sample along the length of the processing rod 8 to destroy the integrity of the annular film sample formed by the second blade 72, so that the film sample wrapped around the surface of the processing rod 8 will fall off automatically without manual reprocessing. The film sample after being processed by the second blade 72 and the cutting blade 26 is uniform in size, which meets the needs of subsequent gas chromatography-mass spectrometry analysis.

[0089] Meanwhile, during actual use, the connecting rod 25 and the cutting blade 26 slide downwards under their own weight, causing the cutting blade 26 to detach from the processing rod 8. This reduces the contact between the cutting blade 26 and the thin film sample on the surface of the processing rod 8, facilitating the first annular cutting and separation of the thin film sample, and maintaining the thin film sample wrapped around the surface of the processing rod 8. After the processing rod 8 is installed, i.e., the top block 82 of the processing rod 8 is located in the mating cavity 73, the second blade 72 performs annular cutting on the thin film sample on the surface of the processing rod 8. At this time, the magnetic force of the magnet on the handle 81 on the magnetic ring 24 overcomes the gravity of the connecting rod 25 and the cutting blade 26, causing the cutting blade 26 to rotate around the rotation point of the mounting bracket 22, so that the cutting blade 26 is located in the separation groove 83 of the processing rod 8. When the processing rod 8 is removed from the housing 1, the cutting blade 26 is used to perform secondary separation of the annular thin film sample on the surface of the processing rod 8 to ensure the uniformity of the broken thin film sample.

[0090] Example 3:

[0091] The difference from Example 2 is that, in order to enhance the grinding effect of the grinding roller 5 on the block sample, the number of protrusions on the grinding roller 5 increases sequentially from bottom to top.

[0092] The specific implementation process is as follows: As the turntable 3 continues to rotate, it generates centrifugal force on the broken sample on the turntable 3, causing it to gradually converge and fall towards the edge of the turntable 3. Therefore, by gradually increasing the number of protrusions on the grinding roller 5, the grinding of the broken sample is improved, so that the broken sample after grinding gradually decreases in size to match the number of protrusions on the grinding roller 5.

[0093] Example 4:

[0094] The difference from Example 3 is that the turntable 3 is provided with a pumping mechanism for organic solvents. In this example, the organic solvents include hexane, tetrahydrofuran, ethyl acetate, etc. The pumping mechanism includes a liquid storage chamber 32 opened inside the turntable 3. The liquid storage chamber 32 is used to store organic solvents. A water pump for pumping organic solvents is provided in the liquid storage chamber 32. The output end of the water pump is connected to a nozzle 33. The nozzle 33 is arranged in a direction facing the center of the first cutter 6 and the second cutter 7.

[0095] The specific implementation process is as follows: an organic solvent is continuously delivered to the machining surfaces of the first tool 6 and the second tool 7 using a water pump to reduce heat loss during the machining process of the first tool 6 and the second tool 7, thereby maintaining the stability of the properties of the sample to be inspected after cutting.

[0096] In some other embodiments, the polymer material is in a highly elastic state at room temperature due to the cross-linking of molecular chains, making it easy to elastically deform under stress and difficult to break brittlely; and the smaller the particle size after cutting, the easier it is to extract the plasticizer from the sample, which can easily lead to the dissolution of non-phthalic plasticizers in organic solvents.

[0097] Therefore, to reduce the dissolution of non-phthalic plasticizers in organic solvents, the interior of the shell 1 can be sealed with a cap and injected with cryogenic liquid nitrogen for environmental cooling, reducing the impact of temperature rise during polymer processing. Furthermore, the liquid storage chamber 32 can be replaced with a sealed container for storing liquid nitrogen. The outlet of this container is positioned towards the center of the first cutter 6 and the second cutter 7, and the outlet is controlled by a solenoid valve. Opening the solenoid valve allows the liquid nitrogen to directly act on the cutting points of the first cutter 6 and the second cutter 7, further reducing the heat generated during cutting polymer materials and the dissolution and breakage of non-phthalic plasticizers in the plastic by organic solvents, thus meeting the requirements for subsequent gas chromatography-mass spectrometry analysis.

[0098] Example 5:

[0099] The difference from Example 4 is that the method of using a non-phthalic plasticizer detection device for liquor contact materials includes the following steps: Step 1: According to the type of the sample to be tested, select the first fixing mechanism and the second fixing mechanism according to the shape of block samples and film samples.

[0100] Step 2: If the sample to be tested is a block sample of hard plastic or rubber, select an appropriate bolt to clamp it on the clamping block 41 according to the diameter of the sample to be tested, and install the first cutter 6 at the center of the turntable 3, and proceed to Step 3.

[0101] If the sample to be inspected is a film sample (such as a plastic bag, plastic film, etc.), wrap the film sample around the processing rod 8 and install the second cutter 7 at the center of the turntable 3, then proceed to step four.

[0102] Step 3: Rotate the fixing block 11 to fix the sealing cover 2. Set the working parameters according to the specific type of block sample. The working parameters include the rotation speed of the turntable 3, the height of the sliding rod on the grinding mechanism on the mounting frame 22, and the pushing speed of the electric push rod 4. At the same time, depending on the specific type of block sample, inject organic solvent into the liquid storage chamber 32 in advance or inject cryogenic liquid nitrogen into the inside of the shell 1 through the sealing cover connecting pipe to cool the environment. During the execution of the working parameters, start the water pump to spray organic solvent onto the surface of the first cutter 6. After the working parameters are completed, open the sealing cover 2 and take out the broken block sample.

[0103] If the block sample is rubber-based, the organic solvent in the storage chamber 32 is a pre-cooled liquid. Cooling the rubber-based material temporarily increases its hardness, facilitating subsequent grinding.

[0104] Step 4: Rotate the fixing block 11 to fix the sealing cover 2, push the handle 81 to abut against the top of the sealing cover 2, keep the separation groove 83 on the processing rod 8 aligned with the cutting blade 26, start the turntable 3 to drive the second blade 7 to rotate; after the turntable 3 stops rotating, vertically remove the processing rod 8 through the handle 81, then open the sealing cover 2 and take out the broken film sample to meet the needs of subsequent gas chromatography-mass spectrometry analysis.

[0105] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A non-phthalic plasticizer detection device for materials in contact with liquor, characterized in that, Includes a housing (1), the top of the housing (1) is sealed with a sealing cover (2), and the center of the sealing cover (2) is provided with a first fixing mechanism for clamping block samples and a second fixing mechanism for fixing thin film samples; The shell (1) is fitted with a turntable (3), and the center of the turntable (3) is provided with a crushing mechanism for crushing block samples and thin film samples; The inside of the turntable (3) is funnel-shaped, and the turntable (3) is equipped with a grinding mechanism for grinding and crushing samples; The bottom of the turntable (3) is equipped with a particle detection mechanism for detecting the uniformity of the crushed sample.

2. The non-phthalic plasticizer detection device for liquor contact materials according to claim 1, characterized in that, The sealing cover (2) has a mounting hole (23) at the center, and a mounting bracket (22) is fixedly connected around the mounting hole (23). The mounting bracket (22) is located inside the housing (1). The first fixing mechanism includes an electric actuator (4) threadedly connected to the mounting bracket (22), and a clamping block (41) is fixedly connected to the output end of the electric actuator (4). Bolts for fixing the block sample are threaded around the clamping block (41). The second fixing mechanism includes a processing rod (8) that slides with the mounting bracket (22). The film sample is wrapped around the processing rod (8). A handle (81) is fixedly connected to one end of the processing rod (8). The length of the handle (81) is greater than the diameter of the mounting hole (23). The diameter of the processing rod (8) near the bottom of the housing (1) is smaller than the diameter of the processing rod (8) near the handle (81).

3. The non-phthalic plasticizer detection device for liquor contact materials according to claim 2, characterized in that, The crushing mechanism includes a first cutter (6) and a second cutter (7) that are detachably connected to the center of the turntable (3). Both the first cutter (6) and the second cutter (7) include a base block, which is threadedly connected to the turntable (3). The first cutting tool (6) includes a drill bit (61) located at the center and a first cutting blade (62) arranged in a ring around the drill bit (61), and the top height of the first cutting blade (62) is less than the top height of the drill bit (61); The second cutting tool (7) includes several support blocks (71) that rotate with the base block. Each support block (71) is fixedly connected with a fan-shaped second blade (72). When adjacent second blades (72) come into contact, the second blades (72) form a ring. The inner diameter of the second blade (72) is smaller than the outer diameter of the processing rod (8). The end of the machining rod (8) away from the handle (81) is fixedly connected to a top block (82), and the center of the second tool (7) has a mating cavity (73) corresponding to the top block (82); When the top block (82) is inside the mating cavity (73), the top block (82) abuts against the support block (71), the support block (71) is located at the bottom of the mating cavity (73), and the second blade (72) abuts against the processing rod (8); when the top block (82) is outside the mating cavity (73), the top block (82) separates from the support block (71), the support block (71) is located above the mating cavity (73), and the second blade (72) separates from the processing rod (8).

4. The non-phthalic plasticizer detection device for liquor contact materials according to claim 3, characterized in that, The processing rod (8) has several annular grooves (84) corresponding to the second blade (72) at one end near the top block (82). A separation groove (83) runs through the adjacent annular grooves (84), and a cutting blade (26) slides in the separation groove (83). The end of the cutting blade (26) away from the processing rod (8) is rotatably engaged with the mounting bracket (22). The end of the cutting blade (26) near the processing rod (8) is hinged with a connecting rod (25). The connecting rod (25) is slidably engaged with the mounting bracket (22) and the sealing cover (2). The end of the connecting rod (25) away from the cutting blade (26) is fixedly connected with a magnetic ring (24). The magnetic ring (24) is slidably engaged with the sealing cover (2). A magnet block for attracting the magnetic ring (24) is fixedly connected to the handle (81). When the handle (81) is above the sealing cover (2) and the magnet on the handle (81) generates an attractive force that overcomes the gravity of the connecting rod (25), the cutting blade (26) is located inside the separation groove (83); when the handle (81) is above the sealing cover (2) and the magnet on the handle (81) generates an attractive force that does not overcome the gravity of the connecting rod (25), the cutting blade (26) is located outside the separation groove (83).

5. The non-phthalic plasticizer detection device for liquor contact materials according to claim 1, characterized in that, The top of the turntable (3) is fixedly connected to an inclined stacking surface (31), and the height of the stacking surface (31) near the center of the turntable (3) is lower than the height of the stacking surface (31) away from the center of the turntable (3). The grinding mechanism includes a sliding block (51) and several grinding rollers (5). The sliding block (51) is slidably engaged with the mounting frame (22), and a bracket is connected between the sliding block (51) and the grinding rollers (5). The bracket is rotatably engaged with the grinding rollers (5), and several protrusions are fixedly connected to the surface of the grinding rollers (5). The particle detection mechanism includes an adsorption plate (34) on the stacking surface (31) and an operating module. A display panel is provided on one side of the housing (1). One end of the adsorption plate (34) is rotatably engaged with the stacking surface (31). A detection chamber (35) is provided between the adsorption plate (34) and the stacking surface (31). An LED light is provided on the adsorption plate (34). A camera (9) for taking real-time pictures is provided in the detection chamber (35). The operating module obtains the projected area of ​​all broken samples based on the real-time pictures and obtains the maximum projected area. The maximum projected area is highlighted and sent to the display panel. A locking block (91) is fixedly connected to the side of the adsorption plate (34) away from the rotation point between the adsorption plate (34) and the stacking surface (31). The locking block (91) is a right trapezoid. A blocking block (92) is provided in the stacking surface (31) to prevent the locking block (91) from moving. A support block is fixedly connected to the end of the blocking block (92) away from the locking block (91). The support block slides with the stacking surface (31). A spring is sleeved on the support block. An electromagnet (93) for adsorbing the blocking block (92) is fixedly connected to the side of the stacking surface (31) corresponding to the support block. The electromagnet (93) is electrically connected to the running module. When the electromagnet (93) is activated, the electromagnet (93) attracts the blocking block (92) and overcomes the resistance of the spring, causing the blocking block (92) to separate from the locking block (91); when the electromagnet (93) is deactivated, the compressed spring releases its elastic force to maintain the blocking block (92) and the locking block (91) in opposition.

6. The non-phthalic plasticizer detection device for liquor contact materials according to claim 5, characterized in that, The number of protrusions on the grinding roller (5) increases sequentially from bottom to top.

7. The non-phthalic plasticizer detection device for liquor contact materials according to claim 3, characterized in that, The turntable (3) is equipped with a pumping mechanism for organic solvents. The pumping mechanism includes a liquid storage chamber (32) located inside the turntable (3). The liquid storage chamber (32) is used to store organic solvents. The liquid storage chamber (32) is equipped with a water pump for pumping organic solvents. The output end of the water pump is connected to a nozzle (33). The nozzle (33) is arranged in the direction of the center of the first cutter (6) and the second cutter (7).

8. The non-phthalic plasticizer detection device for liquor contact materials according to claim 1, characterized in that, A sealing ring (21) is fixedly connected to the side of the sealing cover (2) near the shell (1); The top of the housing (1) is fitted with several L-shaped fixing blocks (11), which are arranged in a ring around the sealing cover (2).

9. A method for using a non-phthalic plasticizer detection device for materials in contact with liquor, characterized in that, The method of using the non-phthalic plasticizer detection device for liquor contact materials according to any one of claims 1-8 includes the following steps: Step 1: Select the first fixing mechanism and the second fixing mechanism according to the shape classification of block samples and film samples based on the type of the current sample to be tested. Step 2: If the sample to be tested is a block sample of hard plastic or rubber, select the bolt to clamp on the clamping block (41) according to the diameter of the sample to be tested, and install the first cutter (6) at the center of the turntable (3) to proceed to step 3. If the sample to be tested is a thin film sample, wrap the thin film sample around the processing rod (8) and install the second tool (7) at the center of the turntable (3) to proceed to step four; Step 3: Rotate the fixing block (11) to fix the sealing cover (2). Set the working parameters according to the specific type of block sample. The working parameters include the rotation speed of the turntable (3), the height of the sliding block (51) on the grinding mechanism on the mounting frame (22), and the pushing speed of the electric push rod (4). At the same time, according to the specific type of block sample, inject organic solvent into the storage chamber (32) in advance or inject low temperature liquid nitrogen into the shell (1) through the sealing cover and connecting pipe to cool the environment. During the execution of the working parameters, start the water pump to spray organic solvent onto the surface of the first cutter (6). Observe the size of the broken sample on the display panel to confirm whether the broken sample meets the preset processing size. Manually adjust the working parameters according to the difference between the broken sample and the preset processing size. Wait for the working parameters to be executed, open the sealing cover (2), and take out the broken block sample. Step 4: Rotate the fixing block (11) to fix the sealing cover (2), push the handle (81) to abut against the top of the sealing cover (2), keep the separation groove (83) on the processing rod (8) and the cutting blade (26) aligned, start the turntable (3) to drive the second blade (7) to rotate; after the turntable (3) stops rotating, use the handle (81) to vertically remove the processing rod (8), then open the sealing cover (2) and remove the broken film sample.

10. The method of using the non-phthalic plasticizer detection device for liquor contact materials according to claim 9, characterized in that, In step three, if the block sample is rubber, the organic solvent in the storage chamber (32) is a pre-freezing liquid.

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