Sample grinding device for food detection

Abstract

The invention relates to the technical field of food grinding, in particular to a food detection sample grinding device which comprises a base, a grinding box is fixed to the upper surface of the base, a discharging bin is slidably connected to the position, corresponding to the lower portion of the grinding box, in the base, and a storage box is fixed to the top end of the grinding box. A second grinding cavity, a third grinding cavity and a first grinding cavity are formed in the grinding box from top to bottom, and a feeding opening is fixed to the upper surface of the storage box; samples are stored through the storage box, meanwhile, the samples are discharged in cooperation with a spiral blade and a scraping plate, the discharged samples enter the grinding box and are gradually ground through the grinding mechanism, so that the samples are ground into different specifications, and subsequent classified collection, machining detection and the like are facilitated; the collecting box is used for collecting the grinding samples of different specifications, and finally the clamping assembly is matched to quickly disassemble and assemble the collecting box, so that the grinding samples of different specifications can be quickly obtained for subsequent processing detection and the like.

Description

Technical Field

[0001] The invention relates to the technical field of food testing, and in particular to a sample grinding device for food testing. Background Art

[0002] Food refers to various finished products and raw materials for human consumption or drinking, as well as items that are both food and Chinese medicinal materials according to tradition. For the safety of food consumed by people, it is necessary to take samples from the food after the production is completed, and then test the samples. In order to meet the requirements of the samples, it is necessary to use a grinding device to grind the food into powder for the convenience of personnel to test the samples. In current life, small grinders are generally used for grinding; For example, in the prior art, there is a food testing sample grinding device with the publication number CN118594712B. This device can autonomously adjust the position of the main grinding knife during the grinding process, so that the main grinding knife can grind the sample at different positions, expand the grinding range, and improve the efficiency of sample grinding. The main grinding knife moves up and down and rotates at a high degree to achieve rapid multi-position stirring of the sample, making the sample distribution more uniform. Multiple grinding knives are driven to rotate by the same electrical component to achieve multiple grinding of the sample, thereby improving the grinding effect of the sample, and driven by one electrical component to reduce the use cost of the grinding device. However, this device is difficult to grind samples into different specifications, cannot guarantee the uniformity of the sample, and is not representative for analysis, resulting in a decrease in analysis accuracy. At the same time, it is impossible to distinguish and collect samples of different specifications, which is not convenient for subsequent detection and processing. In view of the above technical defects, a solution is now proposed. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sample grinding device for food testing, which stores samples through a storage box, and cooperates with spiral blades to drive the samples to fall in an orderly manner, utilizes a grinding mechanism to grind the samples, and grinds them into different specifications to facilitate the uniformity and diversity of subsequent testing, and relies on a collection box for differentiated collection, and uses a card group component to quickly disassemble and assemble the collection box to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sample grinding device for food testing, comprising a base, a grinding box is fixed on the upper surface of the base, and a discharge bin is slidably connected to the inner part of the base at a position corresponding to the lower part of the grinding box, a storage box is fixed on the top of the grinding box, and a second grinding chamber, a third grinding chamber and a first grinding chamber are respectively provided in the inner part of the grinding box from top to bottom, a feed port is fixed on the upper surface of the storage box, a grinding mechanism is commonly installed in the inner parts of the second grinding chamber, the third grinding chamber and the first grinding chamber, three collection boxes are equidistantly slidably connected to the outer sides of the grinding box at positions corresponding to the first grinding chamber, the second grinding chamber and the third grinding chamber, and a clamping assembly is installed between the grinding box and the collection box.

[0005] Furthermore, the grinding mechanism includes a gear ring rotatably connected to the inside of the second grinding chamber, and three first gears rotatably connected to the inside of the second grinding chamber are equidistantly meshed on the inner side of the gear ring. A second gear rotatably connected to the inside of the second grinding chamber is commonly meshed at the center position of the three first gears, and a rotating shaft is connected through the inside of the second gear.

[0006] Furthermore, a first grinding roller rotatably connected to the inside of the second grinding chamber is fixed at the bottom of the first gear, the bottom of the first grinding roller passes through and extends to the inside of the third grinding chamber where a second grinding roller is fixed, the second grinding roller is rotatably connected to the inside of the third grinding chamber, and the bottom of the second grinding roller passes through and extends to the inside of the first grinding chamber where a third grinding roller is fixed, and the third grinding roller is rotatably connected to the first grinding chamber.

[0007] Furthermore, the bottoms of the first grinding chamber, the second grinding chamber and the third grinding chamber are each provided with a second conical groove, the bottom of the second conical groove is rotatably connected with a screen, the specifications of the screen decrease from top to bottom, and the center positions of the three screens are fixed to the rotating shaft.

[0008] Furthermore, a drum screen is fixed at the bottom of the gear ring and is sleeved on the outside of the first grinding chamber, the second grinding chamber and the third grinding chamber. The screen holes inside the drum screen become smaller from top to bottom, and two paddles are symmetrically fixed on both sides of the outside of the drum screen.

[0009] Furthermore, the locking assembly includes guide grooves opened on the outer layer of the grinding box at positions on both sides of the collection box, the interior of the guide grooves is slidably connected with a guide slider, springs and blocks are respectively fixed on both sides of the guide slider, and a paddle is fixed at one end of the guide slider that penetrates and extends to the outside of the guide slider, and slots are opened at the positions of the blocks on both sides of the collection box.

[0010] Furthermore, a conical groove is provided at the inner bottom of the material storage box, and a feed pipe is fixed at the inner bottom end of the material storage box, and three feed distribution pipes are fixed at equal intervals at the bottom of the feed pipe.

[0011] Furthermore, the top end of the rotating shaft passes through the discharge pipe and extends to the outside of the storage box where a motor is fixed, and a spiral blade is fixed on the outer layer of the rotating shaft at the position corresponding to the discharge pipe, and two matching scrapers are symmetrically fixed on both sides of the outer layer of the rotating shaft at the positions corresponding to the conical grooves.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, food samples are placed in the storage box through the feed port, and the motor is started to cooperate with the rotating shaft and the spiral blade to drive the food samples to fall into the grinding box in an orderly manner. At the same time, the rotation of the rotating shaft drives the scraper to rotate, so as to keep the food samples agitated, avoid waste and ensure the continuous falling of the samples. After falling, the samples are dispersed and fall into the grinding box through the feeding pipe and the distributing pipe, so as to pre-separate the samples, thereby effectively improving the subsequent grinding effect; 2. After the food sample of the present invention falls into the grinding box through the distribution pipe, the rotation of the rotating shaft drives the second gear to rotate at the same time, and the rotation of the second gear drives the three first gears to rotate, and the rotation of the first gear drives the first grinding roller to rotate, so as to grind the sample. The specifications of the samples appear different during the grinding process. The rotation of the rotating shaft drives the rotation of the sieve plate, and the turning force of the sieve plate drives the ground sample to rotate, and the centrifugal force is used to separate samples of different specifications. The smaller samples continue to fall, and the larger samples are thrown out with the centrifugal force. At the same time, the samples that meet the screening specifications of the drum screen are thrown out, and those that do not meet the specifications continue to be ground, and the grinding is cyclically carried out. The samples are ground successively through the three grinding chambers, so that the food is ground to different specifications, which is convenient for subsequent collection and processing.

[0013] 3. The present invention is provided with a locking assembly, and the sample is thrown out of the drum screen after being ground. The sample thrown out of the drum screen moves with the turning of the side plate of the drum screen. When it moves to the position of the collection box, it is thrown into the collection box due to inertia, so as to collect the ground sample. When the collection is completed, the card block is separated from the card slot by turning the paddle, and then the locking state between the collection box and the grinding box is released, and the ground sample is separated and collected.

[0014] To summarize, the present invention stores samples through a storage box, and discharges samples with a spiral blade and a scraper. The discharged samples enter the grinding box and are ground successively by a grinding mechanism, so that the samples are ground into different specifications, which is convenient for subsequent classification, collection, processing and inspection, etc. The collection box is used to collect ground samples of different specifications, and finally the collection box is quickly disassembled and assembled with a snap-fit ​​assembly, so as to quickly obtain ground samples of different specifications for subsequent processing and inspection, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure inside the material storage box of the present invention; Figure 3 It is a schematic diagram of the structure inside the grinding box of the present invention; Figure 4 It is a structural schematic diagram of the grinding mechanism of the present invention; Figure 5 is a cross-sectional view of the interior of the grinding box of the present invention; Figure 6 for Figure 1 The enlarged view of point A in the middle; Figure 7 It is a schematic structural diagram of the clamping assembly of the present invention.

[0016] 1. Base; 2. Grinding box; 3. Collecting box; 4. Feed inlet; 5. Motor; 6. Storage box; 7. Clamping assembly; 8. Rotating shaft; 9. Scraper; 10. Spiral blade; 11. Grinding mechanism; 12. Gear ring; 13. Drum screen; 14. Screen; 15. First grinding chamber; 16. Discharging bin; 17. First gear; 18. First grinding roller; 19. Second grinding roller; 20. Third grinding roller; 21. Second gear; 22. Conical groove; 23. Feeding pipe; 24. Guide groove; 25. Paddle; 26. Spring; 27. Guide slider; 28. Block; 29. ​​Slot; 30. Feeding pipe; 31. Paddle; 32. Second grinding chamber; 33. Third grinding chamber; 34. Second conical groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] This embodiment is to address the problem in the prior art that samples are easily piled up during grinding, making it difficult to unload the samples.

[0019] like Figure 1-2 As shown, a sample grinding device for food testing, a grinding box 2 is fixed on the upper surface of a base 1, and a discharge bin 16 is slidably connected to the inner portion of the base 1 at a position corresponding to the lower portion of the grinding box 2, a storage box 6 is fixed to the top of the grinding box 2, and the inner portion of the grinding box 2 is respectively provided with a second grinding chamber 32, a third grinding chamber 33 and a first grinding chamber 15 from top to bottom, and a feed port 4 is fixed to the upper surface of the storage box 6; A conical groove 22 is provided at the bottom of the inner layer of the storage box 6, and a discharge pipe 23 is fixed to the inner bottom end of the storage box 6, and three distribution pipes 30 are fixed at equal intervals at the bottom of the discharge pipe 23, and the three distribution pipes 30 respectively correspond to the gaps between the three first gears 17, and the top of the rotating shaft 8 passes through the discharge pipe 23 and extends to the outside of the storage box 6, where a motor 5 is fixed, and a spiral blade 10 is fixed at the position of the outer layer of the rotating shaft 8 corresponding to the discharge pipe 23, and two matching scrapers 9 are symmetrically fixed on both sides of the outer layer of the rotating shaft 8 corresponding to the position of the conical groove 22.

[0020] The food sample is put into the storage box 6 through the feed port 4, and the motor 5 is started to drive the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the scraper 9 to rotate to stir the stored food sample. At the same time, the rotation of the rotating shaft 8 drives the spiral blade 10 to rotate. The rotation of the spiral blade 10 drives the food sample to fall slowly and orderly to avoid blockage. The falling samples enter the discharge pipe 23 and fall into the grinding box 2 through the distribution pipe 30. Example

[0021] This embodiment aims to address the problem in the prior art that it is difficult to grind samples into different specifications during the grinding process, the uniformity of the samples cannot be guaranteed, and the samples are not representative for analysis, resulting in reduced analysis accuracy.

[0022] like Figure 3-5 As shown, the embodiment is a sample grinding device for food testing, and a grinding mechanism 11 is installed inside the second grinding chamber 32, the third grinding chamber 33 and the first grinding chamber 15. The grinding mechanism 11 includes a gear ring 12 rotatably connected to the inside of the second grinding chamber 32, and three first gears 17 rotatably connected to the inside of the second grinding chamber 32 are meshed equidistantly on the inner side of the gear ring 12. A second gear 21 rotatably connected to the inside of the second grinding chamber 32 is meshed at the center position of the three first gears 17, and a rotating shaft 8 is connected to the inside of the second gear 21 through. A first grinding roller 18 rotatably connected to the inside of the second grinding chamber 32 is fixed to the bottom of the first gear 17, the bottom of the first grinding roller 18 penetrates and extends to the inside of the third grinding chamber 33 where a second grinding roller 19 is fixed, the second grinding roller 19 is rotatably connected to the inside of the third grinding chamber 33, and the bottom of the second grinding roller 19 penetrates and extends to the inside of the first grinding chamber 15 where a third grinding roller 20 is fixed, the third grinding roller 20 is rotatably connected to the first grinding chamber 15; The bottom of the first grinding chamber 15, the second grinding chamber 32 and the third grinding chamber 33 are all provided with a second conical groove 34, and the bottom of the second conical groove 34 is rotatably connected with a screen 14, and the specifications of the screen 14 are gradually reduced from top to bottom, so as to screen samples of different specifications, and the center positions of the three screens 14 are fixed to the rotating shaft 8, and the bottom of the gear ring 12 is fixed with a drum screen 13 which is sleeved on the outside of the first grinding chamber 15, the second grinding chamber 32 and the third grinding chamber 33, and the screen holes inside the drum screen 13 are gradually reduced from top to bottom, and two paddles 31 are symmetrically fixed on both sides of the outside of the drum screen 13.

[0023] After the sample falls into the grinding box 2, it first enters the second grinding chamber 32, and the rotating shaft 8 continuously rotates to drive the second gear 21 to rotate. The rotation of the second gear 21 drives the three first gears 17 to rotate, and the three first grinding rollers 18 are driven to rotate by the first gear 17 to grind the sample. The ground sample falls into the second conical groove 34, and the rotation of the rotating shaft 8 drives the screen 14 to rotate. The rotation of the screen 14 drives the ground sample to rotate. Under the influence of centrifugal force, the larger sample is thrown out of the screen 14, and the smaller sample continues to rotate inside the screen 14. With the rotation and screening, it falls into the third grinding chamber 33 below to be ground again, and is further and finely ground by the second grinding roller 19 and the third grinding roller 20 respectively. The thrown out large-size samples are thrown to the inner edge of the drum screen 13, and the samples that meet the requirements are thrown out through the through holes. The samples that do not meet the requirements are thrown out through the through holes after being ground. The thrown out samples are driven by the continuous rotation of the drum screen 13 to drive the paddle 31 to rotate and be moved. The moved samples are thrown to the position of the collection box 3 as they are moved. The samples fall into the collection box 3 under the influence of inertia, so that the samples are collected; The samples after the final grinding pass through the bottom screen 14 and fall into the discharge bin 16, so that samples of different specifications can be collected to facilitate subsequent processing and testing. Example

[0024] This embodiment aims to address the problem in the prior art that it is difficult to distinguish and collect samples of different specifications during grinding, which is inconvenient for subsequent testing and processing.

[0025] like Figure 6-7As shown, the embodiment is a sample grinding device for food testing, and three collecting boxes 3 are equidistantly slidably connected at positions corresponding to the first grinding chamber 15, the second grinding chamber 32 and the third grinding chamber 33 on both sides of the outer layer of the grinding box 2, and a clamping assembly 7 is installed between the grinding box 2 and the collecting box 3. The clamping assembly 7 includes a guide groove 24 opened on the outer layer of the grinding box 2 at positions corresponding to both sides of the collecting box 3, and a guide slider 27 is slidably connected inside the guide groove 24. A spring 26 and a clamping block 28 are respectively fixed on both sides of the guide slider 27, and a paddle 25 that penetrates and extends to the outside of the guide slider 27 is fixed at one end of the guide slider 27. Clamping grooves 29 are opened at positions corresponding to the clamping blocks 28 on both sides of the collecting box 3.

[0026] When the collection inside the collecting box 3 is completed, the paddle 25 is moved to drive the guide slider 27 to move in the direction of the spring 26 until the block 28 moves out of the slot 29, thereby releasing the fixed state between the collecting box 3 and the grinding box 2, which is convenient for subsequent processing and testing of the samples inside the collecting box 3. After the collection is completed, the collecting box 3 is put back into the grinding box 2. After the paddle 25 is released, the guide slider 27 is driven by the reaction force of the spring 26 to drive the block 28 to be inserted into the slot 29 to form a lock.

[0027] Working process and principle of the present invention: Step 1: Put the food sample into the storage box 6 through the feed port 4, start the motor 5 to drive the rotating shaft 8 to rotate, the rotating shaft 8 drives the scraper 9 to rotate to stir the stored food sample, and at the same time, the rotating shaft 8 rotates to drive the spiral blade 10 to rotate, and the spiral blade 10 rotates to drive the food sample to fall slowly and orderly to avoid blockage. The falling sample enters the discharge pipe 23 and falls into the grinding box 2 through the distribution pipe 30; Step 2: The thrown out large-size samples are thrown to the inner edge of the drum screen 13, and the samples that meet the requirements are thrown out through the through holes, and the samples that do not meet the requirements are thrown out through the through holes after being ground. The thrown out samples are toggled as the drum screen 13 continues to rotate and drives the paddle 31 to rotate. The toggled samples are thrown to the position of the collection box 3 as they are toggled. The samples fall into the collection box 3 under the influence of inertia, so as to collect the samples; The samples after the final grinding pass through the bottom screen 14 and fall into the discharge bin 16, so that samples of different specifications can be collected to facilitate subsequent processing and testing; Step three: When the collection inside the collection box 3 is completed, move the paddle 25 to drive the guide slider 27 to move in the direction of the spring 26 until the block 28 moves out of the slot 29, thereby releasing the fixed state between the collection box 3 and the grinding box 2, which is convenient for subsequent processing and testing of the samples inside the collection box 3. After the collection is completed, put the collection box 3 back into the grinding box 2. After releasing the paddle 25, the guide slider 27 is driven by the reaction force of the spring 26 to drive the block 28 to insert into the slot 29 to form a lock.

[0028] In summary, the storage box 6 is used to store the samples, and the motor 5 is used to drive the rotating shaft 8 to rotate. The rotating shaft 8 rotates in coordination with the spiral blades 10 and the scraper 9 to drive the samples to fall into the grinding box 2. The samples are ground one by one by the grinding mechanism 11 inside the grinding box 2, so that the samples are ground to different specifications and collected through the collection box 3. Finally, the collecting box 3 is quickly disassembled and assembled using the locking assembly 7, so as to facilitate subsequent processing and testing.

[0029] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sample grinding device for food testing, comprising a base (1), characterized in that: A grinding box (2) is fixed on the upper surface of the base (1), and a discharge bin (16) is slidably connected to the interior of the base (1) at a position corresponding to the lower portion of the grinding box (2); a storage box (6) is fixed to the top of the grinding box (2), and a second grinding chamber (32), a third grinding chamber (33) and a first grinding chamber (15) are respectively provided inside the grinding box (2) from top to bottom; a feed inlet (4) is fixed to the upper surface of the storage box (6); a grinding mechanism (11) is installed inside the second grinding chamber (32), the third grinding chamber (33) and the first grinding chamber (15); three collection boxes (3) are equidistantly slidably connected to the outer sides of the grinding box (2) at positions corresponding to the first grinding chamber (15), the second grinding chamber (32) and the third grinding chamber (33); and a snap-fit ​​assembly (7) is installed between the grinding box (2) and the collection box (3).

2. A sample grinding device for food testing according to claim 1, characterized in that: The grinding mechanism (11) comprises a gear ring (12) rotatably connected to the inside of the second grinding chamber (32); three first gears (17) rotatably connected to the inside of the second grinding chamber (32) are equidistantly meshed on the inner side of the gear ring (12); a second gear (21) rotatably connected to the inside of the second grinding chamber (32) is meshed at the center of the three first gears (17); and a rotating shaft (8) is connected through the inside of the second gear (21).

3. A sample grinding device for food testing according to claim 2, characterized in that: A first grinding roller (18) is fixed at the bottom of the first gear (17) and is rotatably connected to the inside of the second grinding chamber (32); the bottom of the first grinding roller (18) passes through and extends to the inside of the third grinding chamber (33) where a second grinding roller (19) is fixed; the second grinding roller (19) is rotatably connected to the inside of the third grinding chamber (33); the bottom of the second grinding roller (19) passes through and extends to the inside of the first grinding chamber (15) where a third grinding roller (20) is fixed; the third grinding roller (20) is rotatably connected to the first grinding chamber (15).

4. A sample grinding device for food testing according to claim 3, characterized in that: The bottoms of the first grinding chamber (15), the second grinding chamber (32) and the third grinding chamber (33) are each provided with a second conical groove (34), the bottom of the second conical groove (34) is rotatably connected to a screen (14), the size of the screen (14) decreases from top to bottom, and the center positions of the three screens (14) are all fixed to the rotating shaft (8).

5. A sample grinding device for food testing according to claim 2, characterized in that: A drum screen (13) is fixed at the bottom of the gear ring (12) and is sleeved on the outside of the first grinding chamber (15), the second grinding chamber (32) and the third grinding chamber (33). The screen holes inside the drum screen (13) gradually become smaller from top to bottom, and two shifting plates (31) are symmetrically fixed on both sides of the outside of the drum screen (13).

6. A sample grinding device for food testing according to claim 1, characterized in that: The engaging assembly (7) comprises guide grooves (24) provided on the outer layer of the grinding box (2) at positions corresponding to both sides of the collecting box (3); a guide slider (27) is slidably connected inside the guide groove (24); a spring (26) and a clamping block (28) are respectively fixed on both sides of the guide slider (27); a paddle (25) penetrating through and extending to the outside of the guide slider (27) is fixed on one end of the guide slider (27); and clamping grooves (29) are provided at positions corresponding to the clamping block (28) on both sides of the collecting box (3).

7. A sample grinding device for food testing according to claim 1, characterized in that: The inner bottom of the material storage box (6) is provided with a conical groove (22), and a material discharge pipe (23) is fixed to the inner bottom end of the material storage box (6), and three material distribution pipes (30) are fixed at equal intervals to the bottom of the material discharge pipe (23).

8. A sample grinding device for food testing according to claim 2, characterized in that: The top end of the rotating shaft (8) passes through the feeding tube (23) and extends to the outside of the material storage box (6) where a motor (5) is fixed, and a spiral blade (10) is fixed at a position on the outer layer of the rotating shaft (8) corresponding to the feeding tube (23), and two matching scrapers (9) are symmetrically fixed at positions on both sides of the outer layer of the rotating shaft (8) corresponding to the conical grooves (22).

Images