A sample preparation device for food inspection

Abstract

The utility model discloses a kind of sample preparation equipment for food inspection, it is related to food inspection sample preparation technical field, including machine table, two drive units are fixedly installed in machine table, cleaning unit is fixedly installed in the side of machine table, the output end of two drive units is respectively installed with feeding table and rotating table, fixedly arranged with clamping unit on feeding table, fixedly arranged with sample preparation crushing unit on rotating table;Sample preparation crushing unit includes support, shaft sleeve, distance measuring sensor.Affinity effect lies in that the position of cutter head in material box is adjusted by lifting mechanism, square shaft, so that cutter head better carries out processing and crushing, reduces the existence of dead angle, the sample in material box is vibrated by ultrasonic vibration mechanism, when inclined blade rotates, downward vortex is generated, so that sample moves towards cutter head during processing, reduces the adhesion of sample on inner wall of material box, facilitate cutter head better processing sample, ensure the efficiency and quality of sample processing.

Description

Technical Field

[0001] This utility model relates to the field of food testing sample preparation technology, and in particular to a food testing sample preparation device. Background Technology

[0002] With the advancement of living pace and social production resources, the concept of food safety has gradually entered every household. In order to test the safety of food, it is necessary to carry out relevant food testing. However, food cannot be directly used as a sample for testing. Therefore, in order to ensure the accuracy of the test results, sample preparation equipment is needed. The sample preparation equipment needs to crush and stir the food to be tested evenly.

[0003] A search revealed that Chinese patent application CN221594482U discloses a rapid sample preparation device for food testing. It mainly achieves rapid connection and disassembly of the power component and the crushing mechanism through a connecting component, and the crushing mechanism rapidly crushes the food sample.

[0004] Compared with existing technologies in related fields, it can be seen that when existing equipment is used for sample crushing, some samples will adhere to the wall of the material box, affecting the crushing effect of the blade. When placing samples, the samples will tumble extensively in the material box, affecting the sample crushing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a sample preparation device for food inspection in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A food testing sample preparation device includes a machine base, two drive units are fixedly installed inside the machine base, a cleaning unit is fixedly installed on the side of the machine base, a feeding platform and a rotating platform are respectively installed at the output ends of the two drive units, a clamping unit is fixedly arranged on the feeding platform, and a sample preparation and crushing unit is fixedly arranged on the rotating platform.

[0008] The sample preparation and pulverizing unit includes a support, a bushing, and a distance sensor. The support is fixedly arranged on a rotating table. A first electrically controlled telescopic mechanism is fixedly installed on the support. A mounting frame is fixedly installed on the telescopic end of the first electrically controlled telescopic mechanism. A lifting mechanism and a sealing assembly are fixedly installed on the mounting frame. A rotary power mechanism is fixedly installed on the lifting mechanism. A square shaft is fixedly installed on the output shaft of the rotary power mechanism. A cutter head is fixedly installed at the lower end of the square shaft. The bushing is rotatably mounted on the mounting frame and slidably connected to the square shaft. Inclined blades are fixedly arranged on the part of the bushing located below the mounting frame. The distance sensor is fixedly installed on the lower surface of the mounting frame. A vibration assembly is fixedly installed on the machine base and is located directly below the clamping unit.

[0009] Furthermore, the sealing assembly includes an airbag, which is fixedly sleeved on the lower side of the mounting bracket. A telescopic negative pressure adsorption ring is fixedly installed on the airbag, and the airbag is located between the telescopic negative pressure adsorption ring and the mounting bracket.

[0010] Furthermore, the vibration assembly includes a second electrically controlled telescopic mechanism, which is fixedly mounted on the machine base and located directly below the clamping unit. A first pressure sensor is fixedly mounted on the telescopic end of the second electrically controlled telescopic mechanism, and an ultrasonic vibration mechanism is fixedly mounted on the first pressure sensor.

[0011] Furthermore, the clamping unit includes mounting slots arranged on the loading platform. A third electrically controlled telescopic mechanism is symmetrically fixed in the mounting slots. A second pressure sensor is fixedly installed on the telescopic extension of the third electrically controlled telescopic mechanism, and a clamping frame is fixedly installed on the second pressure sensor.

[0012] Furthermore, the drive unit includes a motor and a gear set. The motor is fixedly installed inside the machine base, and the gear set is fixedly installed on the rotating shafts of the loading table and the rotary table, respectively. The gear set is fixedly connected to the output shaft of the motor.

[0013] Furthermore, the cleaning unit includes a water tank with an opening at the top, and a spraying mechanism and a hot air drying mechanism are fixedly installed inside the water tank from top to bottom.

[0014] Furthermore, a ball bearing mechanism is fixedly arranged on the upper surface of the machine, and the ball bearing mechanism is slidably connected to the loading platform and the rotary table.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. The position of the cutter head in the material box is adjusted by the lifting mechanism and square shaft, so that the cutter head can better process and crush the sample and reduce the existence of dead corners. The ultrasonic vibration mechanism vibrates the sample in the material box. When the tilting blade rotates, it generates a downward vortex, which makes the sample move towards the cutter head during processing, reducing the adhesion of the sample to the inner wall of the material box, making it easier for the cutter head to process the sample, and ensuring the efficiency and quality of sample processing.

[0017] 2. The position of the material box and the number of samples in the material box are determined by the distance measuring sensor. The height of the mounting frame, air bag and telescopic negative pressure adsorption ring in the material box is adjusted by the first electronically controlled telescopic mechanism. Thus, the processing space in the material box is adjusted according to the number of samples, and the samples in the material box are limited. During the processing, the movement space of the samples in the material box is reduced, so as to better process the samples and improve the processing efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first isometric structural schematic diagram of a food testing sample preparation device according to the present invention;

[0020] Figure 2 This utility model describes a sample preparation device for food testing. Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a schematic cross-sectional view of the machine base and loading platform of the food testing sample preparation equipment described in this utility model;

[0022] Figure 4 This utility model describes a sample preparation device for food testing. Figure 3 Enlarged structural diagram at point B;

[0023] Figure 5 This is a partial structural schematic diagram of a food testing sample preparation device according to the present invention;

[0024] Figure 6 This is a partial cross-sectional structural diagram of a food testing sample preparation device according to the present invention;

[0025] Figure 7 This utility model describes a sample preparation device for food testing. Figure 6 Enlarged structural diagram at point C;

[0026] Figure 8 This is a second isometric structural schematic diagram of a food testing sample preparation device according to the present invention;

[0027] Figure 9 This utility model describes a sample preparation device for food testing. Figure 8 Enlarged structural diagram at point D.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Machine base; 2. Loading platform; 301. Support; 302. First electrically controlled telescopic mechanism; 303. Mounting frame; 304. Lifting mechanism; 305. Rotary power mechanism; 306. Square shaft; 307. Cutting head; 308. Bushing; 309. Inclined blade; 310. Airbag; 311. Telescopic negative pressure adsorption ring; 312. Distance sensor; 313. Second electrically controlled telescopic mechanism; 314. First pressure sensor; 315. Ultrasonic vibration mechanism; 401. Water tank; 402. Spraying mechanism; 403. Hot air drying mechanism; 501. Mounting slot; 502. Third electrically controlled telescopic mechanism; 503. Second pressure sensor; 504. Clamping frame; 6. Rotary table; 7. Motor; 8. Gear set; 9. Ball bearing mechanism. Detailed Implementation

[0030] like Figures 1-9 As shown, a food testing sample preparation device includes a machine base 1. Two drive units are fixedly installed inside the machine base 1, and a cleaning unit is fixedly installed on the side of the machine base 1. A feeding platform 2 and a rotating table 6 are respectively installed at the output ends of the two drive units. A clamping unit is fixedly arranged on the feeding platform 2, and a sample preparation and crushing unit is fixedly arranged on the rotating table 6. A sample-containing box is placed on the feeding platform 2, and the box is clamped and fixed by the clamping unit. The drive unit drives the box to rotate through the feeding platform 2 and the clamping unit to realize automatic feeding of the box. The sample preparation and crushing unit crushes the sample in the box. When processing different samples, the drive unit drives the sample preparation and crushing unit to rotate through the rotating table 6, moving the sample preparation and crushing unit to the cleaning unit. The cleaning unit cleans the sample preparation and crushing unit, so that different sample preparation and crushing units circulate to process the samples, avoiding cross-contamination.

[0031] like Figures 1-8As shown, the sample preparation and pulverizing unit includes a support 301, a bushing 308, and a ranging sensor 312. The support 301 is fixedly arranged on the rotary table 6. A first electrically controlled telescopic mechanism 302 is fixedly installed on the support 301. A mounting frame 303 is fixedly installed on the telescopic end of the first electrically controlled telescopic mechanism 302. A lifting mechanism 304 and a sealing assembly are fixedly installed on the mounting frame 303. A rotary power mechanism 305 is fixedly installed on the lifting mechanism 304. A square shaft 306 is fixedly installed on the output shaft of the rotary power mechanism 305. A cutter head 307 is fixedly installed at the lower end of the square shaft 306. The bushing 308 is rotatably mounted on the mounting frame 303 and slidably connected to the square shaft 306. A row of... The machine has inclined blades 309, and a distance sensor 312 is fixedly mounted on the lower surface of the mounting frame 303. A vibration assembly is fixedly mounted on the machine base 1, located directly below the clamping unit. The distance sensor 312, the first electrically controlled telescopic mechanism 302, the lifting mechanism 304, the rotary power mechanism 305, the cutter head 307, and the bushing 308 operate using existing technology. After the sample-filled hopper is loaded, the vibration assembly adheres to the lower surface of the hopper. The first electrically controlled telescopic mechanism 302 drives the mounting frame 303 into the hopper. The distance sensor 312 detects the upper end of the hopper and the position and height of the sample inside the hopper to determine the position of the hopper and the amount of sample inside. The position of the mounting frame 303 is determined by the detection value of the distance sensor 312. When the mounting bracket 303 reaches a suitable height within the material box, the sealing component fills the gap between the material box and the mounting bracket 303, sealing the material box and preventing sample leakage during processing. Adjusting the depth of the mounting bracket 303 and the seal allows for adjustment of the processing space within the material box based on the number of samples, limiting sample movement and improving processing efficiency. When the mounting bracket 303 enters the material box, it drives the cutter head 307 and the tilting blade 309 into the box. The tilting blade 309 is positioned above the sample, and the cutter head 307 enters the sample, rotating the power unit. Mechanism 305 drives the cutter head 307 to rotate via square shaft 306. Simultaneously, square shaft 306 drives inclined blades 309 to rotate via bushing 308. The cutter head 307 pulverizes the sample. The rotating inclined blades 309 generate downward vortices, pushing the sample forward. Vibration of the vibration assembly further moves the sample towards the cutter head 307, reducing sample adhesion to the inner wall of the material box and allowing the cutter head 307 to process the sample more effectively. During processing, lifting mechanism 304, via rotary power mechanism 305, drives square shaft 306 and cutter head 307 to move up and down, adjusting the position of cutter head 307 within the material box to ensure better pulverization and reduce dead zones.The above structure effectively ensures both the efficiency and quality of sample processing.

[0032] like Figure 2 , Figures 5-7 As shown, the sealing assembly includes an airbag 310, which is fixedly sleeved on the lower side of the mounting bracket 303. A telescopic negative pressure adsorption ring 311 is fixedly mounted on the airbag 310. The airbag 310 is located between the telescopic negative pressure adsorption ring 311 and the mounting bracket 303. The airbag 310 and the telescopic negative pressure adsorption ring 311 are connected to an external inflation / deflation device. The airbag 310 and the telescopic negative pressure adsorption ring 311 operate using existing technology. An extended skeleton is provided inside the airbag 310, so that the airbag 310 can only expand and deform in the horizontal direction. A sample processing area is provided. During the processing, the mounting bracket 303 enters the material box, and the external inflation / deflation device inflates the airbag 310. The airbag 310 drives the telescopic negative pressure adsorption ring 311 to adhere to the inner wall of the material box. The external inflation / deflation device causes the telescopic negative pressure adsorption ring 311 to adhere to the inner wall of the material box, thereby fixing the airbag 310. This allows the airbag 310 and the telescopic negative pressure adsorption ring 311 to effectively seal and cover material boxes of different sizes, avoiding the impact of vibration and other factors during processing on the sealing effect and sample leakage, thus enabling better sample processing.

[0033] like Figure 1 , Figure 4 As shown, the vibration assembly includes a second electrically controlled telescopic mechanism 313, which is fixedly mounted on the machine base 1 and located directly below the clamping unit. A first pressure sensor 314 is fixedly mounted on the telescopic end of the second electrically controlled telescopic mechanism 313, and an ultrasonic vibration mechanism 315 is fixedly mounted on the first pressure sensor 314. The second electrically controlled telescopic mechanism 313, the first pressure sensor 314, and the ultrasonic vibration mechanism 315 operate using existing technology. When the sample box is loaded and moved above the ultrasonic vibration mechanism 315, the second electrically controlled telescopic mechanism 313 drives the ultrasonic vibration mechanism 315 to move through the first pressure sensor 314, so that the ultrasonic vibration mechanism 315 contacts the lower surface of the box. The contact value between the ultrasonic vibration mechanism 315 and the box is determined by the detection value of the first pressure sensor 314. During the sample crushing process, the ultrasonic vibration mechanism 315 vibrates the sample in the box, reducing the adhesion of the sample to the inner wall of the box, facilitating better sample processing, and effectively improving the efficiency and quality of sample processing.

[0034] like Figure 2 , Figure 3 , Figure 8 , Figure 9As shown, the clamping unit includes mounting slots 501, which are arranged on the loading platform 2. A third electrically controlled telescopic mechanism 502 is symmetrically fixed within the mounting slots 501. A second pressure sensor 503 is fixedly mounted on the telescopic extension of the third electrically controlled telescopic mechanism 502. A clamping frame 504 is fixedly mounted on the second pressure sensor 503. The third electrically controlled telescopic mechanism 502 and the second pressure sensor 503 operate using existing technology. During processing, a sample-containing box is placed between two corresponding clamping frames 504. The third electrically controlled telescopic mechanism 502 moves the clamping frame 504 via the second pressure sensor 503, adjusting the position of the clamping frame 504 so that it clamps and fixes the box according to its size, improving the stability of the box, preventing it from falling during processing, improving safety, and facilitating the processing of the sample in the box. The second pressure sensor 503 detects the clamping force of the clamping frame 504, ensuring effective clamping and fixing of the box while preventing damage.

[0035] like Figure 3 As shown, the drive unit includes a motor 7 and a gear set 8. The motor 7 is fixedly installed inside the machine base 1, and the gear set 8 is fixedly installed on the rotating shafts of the loading platform 2 and the rotary table 6, respectively. The gear set 8 is fixedly connected to the output shaft of the motor 7. The operation of the motor 7 and the gear set 8 adopts existing technology. The motor 7 drives the loading platform 2 and the rotary table 6 to rotate through the gear set 8, thereby cyclically feeding the samples on the loading platform 2 and cyclically replacing the sample preparation and crushing unit on the rotary table 6, avoiding cross-influence between samples. Through cyclic feeding and adjustment, the standby time is reduced, and the efficiency of sample preparation and processing is effectively improved.

[0036] like Figure 1 , Figure 3 , Figure 8 As shown, the cleaning unit includes a water tank 401 with an opening at the top. A spray mechanism 402 and a hot air drying mechanism 403 are fixedly installed inside the water tank 401 from top to bottom. The spray mechanism 402 and the hot air drying mechanism 403 operate using existing technology. The water tank 401 is located on the side of the rotating table 6 and directly below the sample preparation and pulverizing unit. After the sample preparation and pulverizing unit completes its pulverization process, the rotating table 6 moves the sample preparation and pulverizing unit above the water tank 401. The working part of the sample preparation and pulverizing unit enters the water tank 401 via the first electrically controlled telescopic mechanism 302. The spray mechanism 402 sprays and rinses the sample preparation and pulverizing unit, reducing the workload of the staff, improving the cleanliness of the sample preparation and pulverizing unit, avoiding cross-contamination of samples, ensuring sample purity and accurate test results. After spraying and rinsing, the hot air drying mechanism 403 dries the sample preparation and pulverizing unit, facilitating its reuse for sample pulverization and effectively improving work efficiency.

[0037] like Figure 3 As shown, a ball bearing mechanism 9 is fixedly arranged on the upper surface of the machine base 1. The ball bearing mechanism 9 is slidably connected to the loading platform 2 and the rotary table 6. The ball bearing mechanism 9 operates using existing technology. During the rotation and adjustment of the loading platform 2 and the rotary table 6, the ball bearing mechanism 9 supports the loading platform 2 and the rotary table 6, thereby improving the stability of the loading platform 2 and the rotary table 6.

[0038] Working principle: such as Figure 2 , Figure 3 , Figure 8 , Figure 9 As shown, the sample box is placed between two corresponding clamping frames 504. The third electrically controlled telescopic mechanism 502 drives the clamping frame 504 to move through the second pressure sensor 503, clamping and fixing the sample box through the clamping frame 504. The clamping force of the clamping frame 504 is detected by the second pressure sensor 503.

[0039] like Figure 1 , Figure 3 , Figure 4 As shown, motor 7 drives the loading platform 2 and rotary table 6 to rotate through gear set 8 respectively. The stability of loading platform 2 and rotary table 6 during rotation is improved by ball bearing mechanism 9. Loading platform 2 moves the material box to load material through clamping unit. Rotary table 6 moves the sample preparation and crushing unit above the material box. Second electric control telescopic mechanism 313 drives ultrasonic vibration mechanism 315 to move through first pressure sensor 314, so that ultrasonic vibration mechanism 315 contacts the lower surface of material box. The detection value of first pressure sensor 314 determines that ultrasonic vibration mechanism 315 is in contact with material box.

[0040] like Figures 1-3 , Figures 5-8 As shown, the first electrically controlled telescopic mechanism 302 drives the mounting frame 303 into the material box. The distance sensor 312 detects the position and height of the upper end of the material box and the sample inside the material box, thereby determining the position of the material box and the amount of sample inside the material box. The depth of the mounting frame 303 entering the material box is determined by the detection value of the distance sensor 312. When the mounting frame 303 enters the material box at a suitable height, the external inflation and deflation device inflates the airbag 310. The airbag 310 drives the telescopic negative pressure adsorption ring 311 to adhere to the inner wall of the material box. The external inflation and deflation device causes the telescopic negative pressure adsorption ring 311 to adhere to the inner wall of the material box. The material box is sealed by the airbag 310, the telescopic negative pressure adsorption ring 311 and the mounting frame 303.

[0041] like Figures 1-8As shown, when the mounting frame 303 enters the material box, it drives the cutter head 307 and the inclined blade 309 into the material box. The rotary power mechanism 305 drives the cutter head 307 to rotate through the square shaft 306. At the same time, the square shaft 306 drives the inclined blade 309 to rotate through the bushing 308. The cutter head 307 crushes the sample. Meanwhile, the inclined blade 309 generates a downward vortex when rotating, which pushes the sample. The ultrasonic vibration mechanism 315 vibrates the sample in the material box, causing the sample to move towards the cutter head 307 during processing, so that the cutter head 307 can process the sample better. At the same time, the lifting mechanism 304 drives the square shaft 306 and the cutter head 307 to move up and down through the rotary power mechanism 305, adjusting the position of the cutter head 307 in the material box, so that the cutter head 307 can process and crush the sample better.

[0042] like Figure 1 , Figure 3 , Figure 8 As shown, after the sample preparation and pulverization unit completes the sample pulverization process, the rotating table 6 moves the sample preparation and pulverization unit to the top of the water tank 401. The working part of the sample preparation and pulverization unit enters the water tank 401 through the first electrically controlled telescopic mechanism 302. The sample preparation and pulverization unit is sprayed and rinsed by the spraying mechanism 402. After the spraying and rinsing is completed, the sample preparation and pulverization unit is dried by the hot air drying mechanism 403, so that the sample preparation and pulverization unit can be recycled and used to participate in the sample pulverization process, avoiding cross-contamination.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sample preparation device for food testing, characterized in that, Includes a machine base (1), in which two drive units are fixedly installed, and a cleaning unit is fixedly installed on the side of the machine base (1). The output ends of the two drive units are respectively equipped with a feeding platform (2) and a rotating table (6). A clamping unit is fixedly arranged on the feeding platform (2), and a sample preparation and crushing unit is fixedly arranged on the rotating table (6). The sample preparation and pulverization unit includes a support (301), a bushing (308), and a distance sensor (312). The support (301) is fixedly arranged on the rotary table (6). A first electrically controlled telescopic mechanism (302) is fixedly installed on the support (301). A mounting frame (303) is fixedly installed on the telescopic end of the first electrically controlled telescopic mechanism (302). A lifting mechanism (304) and a sealing assembly are fixedly installed on the mounting frame (303). A rotary power mechanism (305) is fixedly installed on the lifting mechanism (304). The output of the rotary power mechanism (305) is... A square shaft (306) is fixedly mounted on the shaft. A cutter head (307) is fixedly mounted on the lower end of the square shaft (306). A bushing (308) is rotatably mounted on the mounting frame (303). The bushing (308) is slidably connected to the square shaft (306). Inclined blades (309) are fixedly arranged on the part of the bushing (308) located below the mounting frame (303). A distance sensor (312) is fixedly mounted on the lower surface of the mounting frame (303). A vibration assembly is fixedly mounted on the machine base (1). The vibration assembly is located directly below the clamping unit.

2. The food testing sample preparation equipment according to claim 1, characterized in that: The sealing assembly includes an airbag (310), which is fixedly sleeved on the lower side of the mounting bracket (303). A telescopic negative pressure adsorption ring (311) is fixedly installed on the airbag (310), and the airbag (310) is located between the telescopic negative pressure adsorption ring (311) and the mounting bracket (303).

3. The food testing sample preparation equipment according to claim 1, characterized in that: The vibration assembly includes a second electrically controlled telescopic mechanism (313), which is fixedly installed on the machine base (1). The second electrically controlled telescopic mechanism (313) is located directly below the clamping unit. A first pressure sensor (314) is fixedly installed on the telescopic end of the second electrically controlled telescopic mechanism (313), and an ultrasonic vibration mechanism (315) is fixedly installed on the first pressure sensor (314).

4. The food testing sample preparation equipment according to claim 1, characterized in that: The clamping unit includes a mounting slot (501), which is arranged on the loading platform (2). A third electrically controlled telescopic mechanism (502) is symmetrically fixed in the mounting slot (501). A second pressure sensor (503) is fixedly installed on the telescopic extension of the third electrically controlled telescopic mechanism (502), and a clamping frame (504) is fixedly installed on the second pressure sensor (503).

5. The food testing sample preparation equipment according to claim 1, characterized in that: The drive unit includes a motor (7) and a gear set (8). The motor (7) is fixedly installed inside the machine base (1). The gear set (8) is fixedly installed on the rotating shafts of the loading platform (2) and the rotary table (6), respectively. The gear set (8) is fixedly connected to the output shaft of the motor (7).

6. The food testing sample preparation equipment according to claim 1, characterized in that: The cleaning unit includes a water tank (401) with an opening at the top. A spraying mechanism (402) and a hot air drying mechanism (403) are fixedly installed inside the water tank (401) from top to bottom.

7. The food testing sample preparation equipment according to claim 1, characterized in that: The upper surface of the machine base (1) is fixedly arranged with a ball bearing mechanism (9), which is slidably connected to the loading platform (2) and the rotary table (6).

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