A moisture analyzer for film-coated premixes

Abstract

This utility model belongs to the technical field of moisture analyzers, and in particular, a moisture analyzer for film-coated premixes. Addressing the problem in existing technologies where manual removal of the premix container is required after measurement, and the high temperature of the premix container can easily cause burns, is time-consuming and laborious, this invention proposes the following solution: It includes a base with support legs fixedly installed at each of the four corners of the base; a side plate fixedly installed on the rear side of the base, with a top plate fixedly installed on the top of the side plate; a cover fixedly installed on the top of the base, with an electronic scale fixedly installed on the bottom inside the cover; a pre-feeding platform and a discharge placement platform fixedly installed on the front and rear sides of the top of the base, respectively, for temporarily storing premix containers to be measured and those already measured. This utility model automatically discharges and refills the premix after measurement, greatly improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of moisture analyzers, and in particular to a moisture analyzer for film-coated premixes. Background Technology

[0002] The matrix used in film-coated premixes includes components such as carriers and diluents; the matrix must have good stability and excellent flowability, and be easily mixed with drugs and feeds; if it is a lipid-containing matrix, it must be degreased beforehand; in addition to the specific matrix specified for each product, other suitable matrices that meet the requirements may also be selected; it is generally recommended to use a single matrix; the heavy metal content in the matrix shall not exceed 20 parts per million, and the arsenic salt content shall not exceed 2 parts per million; the drying loss of inorganic matrix and organic matrix shall not exceed 3.0% and 8.0%, respectively.

[0003] Publication (Announcement) No.: CN223205316U provides a moisture analyzer for film-coated premixes, belonging to the field of moisture analyzers. It includes a movable plate, the main body of which is a rectangular block structure. Two movable plates are provided, and a base plate is fixedly connected to the inner side of each movable plate. This addresses the problem that existing moisture analyzers lack effective shielding and protection structures, making them prone to burns due to accidental contact when heated. By providing a mounting groove at the top of the housing, when heating the premix in the test pan, an electric push rod installed in the mounting groove can be activated to pull the base plate and movable plate downwards. This allows the test pan and heating tube, fixedly connected to the top surface of the guide rod, to be hidden inside the mounting groove, thus preventing burns.

[0004] Publication (Announcement) No.: CN218180586U provides a moisture analyzer, including: a shell; a crucible liner is provided on the inner wall of the shell, an annular heating plate is provided on the inner wall of the crucible liner, an air inlet is provided on the annular heating plate, a drying chamber is provided on the inner side of the annular heating plate, and a shelf is rotatably connected to the drying chamber; in this utility model, the shell, crucible liner, annular heating plate, and drying chamber are used for heating and heat preservation, and air pumps, connecting pipes, and dryers are respectively set up to circulate and absorb water vapor from the test material for drying. The shelf, mechanical scale, and storage tray rotate the test material for uniform heating, and the weight values ​​of the test material before and after heating are read to realize the moisture content detection of the test material. This device can simultaneously detect the moisture content of multiple test materials, improves the work efficiency of the testing operator, and the device has a simple structure, is easy to operate, and has high drying and dehydration efficiency.

[0005] In the existing technology, after the premix is ​​measured, it needs to be manually removed. The premix container is hot, and it is easy to get burned if it is removed directly, which is time-consuming and laborious. Utility Model Content

[0006] The purpose of this invention is to solve the shortcomings of the prior art, which requires manual removal of the premix after the premix is ​​measured, and the high temperature of the premix container makes it easy to burn the premix when it is removed directly, which is time-consuming and laborious. Therefore, a film-coated premix moisture analyzer is proposed.

[0007] The moisture analyzer for film-coated premixes provided in this application adopts the following technical solution:

[0008] A moisture analyzer for film-coated premixes includes:

[0009] The base, with support legs fixedly installed at each of its four bottom corners, also includes:

[0010] The side panel is fixedly installed on the rear side of the base, and a top plate is fixedly installed on the top of the side panel;

[0011] The cover is fixedly installed on the top of the base, and an electronic scale is fixedly installed on the bottom inside the cover;

[0012] The pre-feeding platform and the discharge placement platform are fixedly installed on the front and rear sides of the top of the base, respectively, for temporarily storing premix containers to be tested and those that have already been tested.

[0013] A moisture drying mechanism, located inside the base, is used to deliver hot airflow into the enclosure to dry the premix.

[0014] The leveling mechanism, located inside the cover, is used to level the premix in the premix container to prevent accumulation and uneven drying.

[0015] The feeding and discharging mechanism is located inside the side plate and is used to transfer the premix container to be tested on the prefeeding platform to the electronic scale, and to transfer the premix container that has been tested on the electronic scale to the discharging placement platform.

[0016] The auxiliary mechanism, located inside the enclosure, is used to close or open the enclosure to create a sealed space and reduce the loss of hot air.

[0017] Furthermore, the moisture drying mechanism includes a heating chamber located on the bottom side of the base. A partition is provided inside the heating chamber. A connecting groove 1 and a connecting groove 2 communicating with the cover are provided on the top of the heating chamber, with the connecting groove 1 located in front of the connecting groove 2. A motor 1 is fixedly installed on the top side inside the heating chamber. A fan blade is fixedly installed on the output shaft of the motor 1. A heater is fixedly installed on the rear side of the partition. A heating rod penetrating the partition is fixedly installed at the front end of the heater.

[0018] Furthermore, the leveling mechanism includes a hydraulic cylinder 1 fixedly installed on the top side inside the cover, a motor 2 fixedly installed on the output shaft of the hydraulic cylinder 1, a rotating column fixedly installed on the output shaft of the motor 2, and a leveling plate adapted to the premix container fixedly installed at the bottom end of the rotating column.

[0019] Furthermore, the feeding and discharging mechanism includes a motor four fixedly installed inside the front side of the side plate. The output shaft of the motor four is fixedly installed with a screw two. The screw two is rotatably connected to the side plate. Two movable plates two are threadedly connected to the screw two. Both movable plates two are slidably connected to the side plate.

[0020] Furthermore, hydraulic cylinders are fixedly installed on the left side of both movable plates 2. A fixed block is fixedly connected to the output end of each hydraulic cylinder 2. A motor 3 is fixedly installed on the front side inside the fixed block. Screws 1 are fixedly installed on the two output shafts of the motor 3. Both screws 1 are rotatably connected to the fixed block. Movable plates 1 are threadedly connected to both screws 1. Both movable plates 1 are slidably connected to the fixed block. An arc-shaped clamping plate is fixedly connected to the left side of each movable plate 1.

[0021] Furthermore, the auxiliary mechanism includes recycling troughs on the front and rear sides of the cover, with sealing plates slidably connected in both recycling troughs. Vertical screws are rotatably connected to the inside of the side plates at positions directly behind the two recycling troughs. Movable plates are threaded onto both screws, and both movable plates are slidably connected to the side plates. The two movable plates are fixedly connected to the two sealing plates respectively.

[0022] Furthermore, a rack is fixedly installed on the right side of the movable plate two located at the front, the rack is meshed with a gear, and a rotating column one is fixedly connected to the gear.

[0023] Furthermore, each of the two screws three has a rotating post two fixedly connected to its top end. The rotating post two is rotatably connected to the top plate. Each of the two rotating posts two has a sprocket two fixedly installed on its outer surface. The outer surface of the rotating post one has two sprockets one fixedly connected to it. Each of the two sprockets one and the two sprockets two has two chains meshing with it.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. This solution features fully automated operation, significantly improving testing efficiency and reducing reliance on manual labor. Through a purely mechanical transmission structure using racks, pinions, and sprockets, it achieves automatic linkage between the feeding and discharging mechanisms and auxiliary mechanisms, eliminating the need for additional electronic control modules for coordination. Simultaneously, leveling, drying, and weighing processes are automatically connected according to a preset sequence, requiring no manual intervention, such as manually opening and closing sealing caps or moving containers. Compared to traditional semi-manual equipment, this solution can reduce single-test time by more than 30%, and avoids delays or errors caused by manual operation, significantly reducing labor costs and management difficulty, making it particularly suitable for batch testing scenarios.

[0026] 2. This solution utilizes a leveling mechanism to spread the premix into a uniform thin layer, avoiding the problems of localized over-drying or under-drying caused by premix accumulation in traditional equipment. Furthermore, the heating chamber employs a fan blade, heating rod, and dual-connecting slot hot air circulation design. Outside air, filtered through a screen, forms stable hot air that evenly acts on the premix surface, further improving drying consistency. Simultaneously, the leveling and drying actions are separated from the weighing process. Weighing occurs only after leveling and resetting, and a second weighing occurs after drying stops, avoiding interference from mechanical vibration on the electronic scale. The moisture content measurement error can be controlled within ±0.1%, meeting the high-precision testing requirements of pharmaceutical-grade premixes.

[0027] 3. The feeding and discharging mechanism of this solution adopts an arc-shaped clamping plate, which is adapted to the shape of the container and clamps the container containing the premix, rather than directly contacting the premix. This avoids the risk of burns caused by manual handling of high-temperature containers, which can reach a temperature of 80-120℃ after drying, and also prevents sample contamination caused by manual contact. In addition, the air inlet and outlet of the heating chamber are equipped with filters to intercept external dust from entering the equipment and prevent fine powder of the premix from leaking out with the airflow during the drying process. This protects the operator from dust and avoids sample loss or dust accumulation inside the equipment affecting subsequent testing. It is especially suitable for fields with high cleanliness requirements, such as pharmaceuticals and food.

[0028] This invention can automatically discharge and feed the premix after the premix is ​​measured, which greatly improves work efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a moisture analyzer for a film-coated premix proposed in this utility model.

[0030] Figure 2 This is a cross-sectional structural diagram of a moisture analyzer for a film-coated premix proposed in this utility model.

[0031] Figure 3 This invention provides a moisture analyzer for film-coated premixes. Figure 2 Rear view structural diagram.

[0032] Figure 4 This invention provides a moisture analyzer for film-coated premixes. Figure 3 Cross-sectional structural diagram.

[0033] Figure 5 This is a schematic diagram of the internal structure of the fixing block of a moisture analyzer for film-coated premixes proposed in this utility model.

[0034] Figure 6 This invention provides a moisture analyzer for film-coated premixes. Figure 2 Enlarged structural diagram of section A.

[0035] Figure 7 This invention provides a moisture analyzer for film-coated premixes. Figure 4 Enlarged structural diagram of section B.

[0036] Figure 8 This invention provides a moisture analyzer for film-coated premixes. Figure 4 Enlarged structural diagram of section C.

[0037] Attached reference numerals: 1. Base; 2. Support leg; 3. Side plate; 4. Top plate; 5. Cover; 6. Heating chamber; 7. Air inlet; 8. Motor 1; 9. Fan blade; 10. Heater; 11. Heating rod; 12. Connecting groove 1; 13. Connecting groove 2; 14. Air outlet; 15. Electronic scale; 16. Hydraulic cylinder 1; 17. Motor 2; 18. Rotating column; 19. Spreading plate; 20. Pre-feeding platform; 21. Hydraulic cylinder 2; 22. Fixing block; 23. Motor 3; 24. Screw 1; 25. Moving plate 1; 26. Arc-shaped clamping plate; 27. Sealing plate; 28. Recycling tank; 29. ​​Motor 4; 30. Screw 2; 31. Moving plate 2; 32. Screw 3; 33. Moving plate 3; 34. Rack; 35. Gear; 36. Rotating column 1; 37. Sprocket 1; 38. Sprocket 2; 39. Rotating column 2; 40. Chain; 41. Discharge placement platform. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0039] Reference Figures 1-8 A moisture analyzer for film-coated premixes includes: a base 1, with support legs 2 fixedly installed at each of the four corners of the bottom of the base 1; and further includes:

[0040] Side plate 3 is fixedly installed on the rear side of base 1, and top plate 4 is fixedly installed on the top of side plate 3;

[0041] The cover 5 is fixedly installed on the top of the base 1, and an electronic scale 15 for carrying and weighing the premix container is fixedly installed on the bottom side inside the cover 5.

[0042] The pre-feeding platform 20 and the discharge placement platform 41 are fixedly installed on the front and rear sides of the top of the base 1, respectively, for temporarily storing the premix containers to be tested and those that have been tested.

[0043] A moisture drying mechanism is located inside the base 1 and is used to deliver hot airflow into the cover 5 to dry the premix.

[0044] The leveling mechanism, located inside the cover 5, is used to level the premix in the premix container to prevent accumulation and uneven drying.

[0045] The feeding and discharging mechanism is located inside the side plate 3. It is used to transfer the premix container to be tested on the prefeeding platform 20 to the electronic scale 15, and to transfer the premix container that has been tested on the electronic scale 15 to the discharge placement platform 41, so as to avoid manual contact with high temperature containers.

[0046] An auxiliary mechanism, located inside the cover 5, is used to close or open the cover 5 to form a sealed space to reduce the loss of hot air.

[0047] Reference Figure 2 and Figure 6 The moisture drying mechanism includes a heating chamber 6 located inside the bottom side of the base 1. A partition is installed inside the heating chamber 6. The top of the heating chamber 6 has a connecting groove 12 and a connecting groove 13 that connect to the cover 5, with the connecting groove 12 located in front of the connecting groove 13. A motor 8 is fixedly installed on the top side inside the heating chamber 6, and a fan blade 9 is fixedly installed on the output shaft of the motor 8. An air inlet 7 communicating with the outside is located at the front end of the bottom side inside the heating chamber 6, and an air outlet 14 communicating with the outside is located at the rear side of the heating chamber 6. Both the air inlet 7 and the air outlet 14 are fixedly equipped with filters. A heater 10 is fixedly installed on the rear side of the partition. A heating rod 11 that penetrates the partition is fixedly installed at the front end of the heater 10, and the heating rod 11 is located directly above the fan blade 9. After starting the motor 8 and the heater 10, the output shaft of the motor 8 drives the fan blade 9 to rotate. The outside air enters the heating chamber 6 after being filtered through the air inlet 7. After being heated by the heating rod 11, it enters the cover 5 through the connecting groove 12 to dry the premixed agent, and then is discharged through the connecting groove 2 13 and the air outlet 14.

[0048] Reference Figure 6The leveling mechanism includes a hydraulic cylinder 16 fixedly installed on the top side inside the cover 5. The output shaft of the hydraulic cylinder 16 is vertically downward and a motor 17 is fixedly installed thereon. The output shaft of the motor 17 is vertically downward and a rotating column 18 is fixedly installed thereon. A flat plate 19 adapted to the premix container is fixedly installed at the bottom end of the rotating column 18. The hydraulic cylinder 16 can drive the flat plate 19 to rise and fall to contact or move away from the premix. The motor 17 can drive the flat plate 19 to rotate to level the premix.

[0049] Reference Figures 1-5 and Figure 8 The feeding and discharging mechanism includes a motor 29 fixedly installed inside the front side of the side plate 3. The output shaft of the motor 29 is horizontally rearward and a screw 30 is fixedly installed thereon. The end of the screw 30 away from the motor 29 is rotatably connected to the side plate 3. Two movable plates 31 are threadedly connected to the screw 30. Both movable plates 31 are slidably connected to the side plate 3. Hydraulic cylinders 21 are fixedly installed on the left side of each of the two movable plates 31. A fixing block 22 is fixedly connected to the output end of each hydraulic cylinder 21. A motor 23 is fixedly installed inside the front side of the fixing block 22. Screws 24 are fixedly installed on the two output shafts of the motor 23. The ends of the two screws 24 away from the motor 23 are rotatably connected to the fixing block 22. 24 is a reverse thread, and each of the two screws 24 is threaded with a movable plate 25. Both movable plates 25 are slidably connected to the fixed block 22, and each of the two movable plates 25 is fixedly connected to an arc-shaped clamping plate 26 for clamping the premix container. In the initial state, one of the fixed blocks 22 corresponds to the position of the pre-feeding platform 20, and the other fixed block 22 corresponds to the position of the electronic scale 15 inside the cover 5. Starting the motor 3 23 can drive the two arc-shaped clamping plates 26 to move towards each other to clamp the container. Starting the hydraulic cylinder 21 can drive the fixed block 22 to move left and right to adjust the clamping position. Starting the motor 4 29 can drive the two movable plates 2 31 to move, so as to realize the feeding of the container to be tested to the electronic scale 15 and the discharge of the tested container to the discharge placement platform 41.

[0050] Reference Figures 6-8The auxiliary mechanism includes recovery troughs 28 located on the front and rear sides of the cover 5. Each recovery trough 28 is slidably connected to a sealing plate 27. Vertical screws 32 are rotatably connected to the interior of the side plate 3, located directly behind each of the two recovery troughs 28. Moving plates 33 are threaded onto each screw 32 and are slidably connected to the side plate 3. Each moving plate 33 is fixedly connected to the two sealing plates 27. A rack 34 is fixedly installed on the right side of the moving plate 31 located on the front side. The rack 34 is meshed with a gear 35. A rotating column 36 is fixedly connected to the gear 35. The rotating column 36 vertically penetrates the side plate 3 and the top plate 4 and is rotatably connected to both. Rotating columns 39 are fixedly connected to the top ends of each screw 32. Rotating column 2 39 is rotatably connected to top plate 4. Sprockets 2 38 are fixedly installed on the outer surfaces of both rotating columns 2 39. Two sprockets 1 37 are fixedly connected to the outer surface of rotating column 1 36. Two chains 40 are meshed between the two sprockets 1 37 and the two sprockets 2 38 respectively. When moving plate 2 31 moves to the rear, it drives rack 34 to move synchronously, driving gear 35 and rotating column 1 36 to rotate. Through the transmission of sprockets 1 37, chain 40 and sprockets 2 38, rotating column 2 39 and screw 32 are driven to rotate, causing the two moving plates 33 to drive sealing plate 27 to move upward to open cover 5. When moving plate 2 31 returns to the front, rack 34 moves in the opposite direction, driving the above transmission structure to move in the opposite direction, causing sealing plate 27 to move downward to close cover 5.

[0051] The implementation principle of the film-coated premix moisture analyzer in this application embodiment is as follows: start hydraulic cylinder 16, whose output axis pushes motor 17, rotating column 18 and spreading plate 19 downward, so that spreading plate 19 contacts the premix in the container. start motor 17 to drive rotating column 18 and spreading plate 19 to rotate, spreading the accumulated premix into a uniform thin layer to avoid insufficient drying in some areas. After spreading, hydraulic cylinder 16 drives spreading plate 19 to rise and reset, away from the container.

[0052] After the leveling mechanism resets, the electronic scale 15 automatically records and stores the initial weight of the container containing the premix to be measured; the motor 8 and heater 10 are started, the motor 8 drives the fan blade 9 to rotate, and the outside air enters the heating chamber 6 after being filtered through the air inlet 7; the air is heated by the heating rod 11 and enters the cover 5 through the connecting groove 12 to dry the leveled premix with hot air; the hot air carrying moisture returns to the heating chamber 6 through the connecting groove 2 13 and is finally discharged through the filter 701 of the air outlet 14 to prevent dust leakage; after drying is completed, the motor 8 and heater 10 are turned off;

[0053] Electronic scale 15 records the residual weight of the premixed agent in the container after drying, automatically calculates the moisture content (moisture content = initial weight - residual weight / initial weight × 100%) and stores it.

[0054] After the measurement is completed, start motor 29. Its output shaft drives the double-threaded screw 30 to rotate, causing the two moving plates 31 to move backward simultaneously. The front moving plate 31 drives the rack 34 to move backward, and the rack 34 meshes with the drive gear 35 to rotate, which in turn drives the rotating column 36 and the sprocket 37 to rotate. Through the chain 40, the sprocket 38 and the rotating column 39 rotate, driving the screw 32 to rotate, causing the two moving plates 33 to drive the two sealing plates 27 to slide upward along the recycling tank 28. When the cover 5 opens and the front fixed block 22 moves above the pre-feeding platform 20, start motor 23. Its output shaft drives the reverse-threaded screw 24. The rotation causes the two movable plates 25 to move towards each other, clamping the container to be measured. The motor 29 continues to drive the screw 30, causing the front movable plate 31 to move the container backward to above the electronic scale 15 inside the cover 5. At the same time, the arc clamping plate 26 inside the cover 5 clamps the measured container, causing the rear fixed block 22 to move the container to above the discharge placement platform 41. Then, the two motors 23 drive in opposite directions, causing the two sets of arc clamping plates 26 to open and reset. The motor 29 drives the two movable plates 31 to reset forward, and the rack 34 moves in opposite directions, driving the sealing plate 27 to slide downward through the transmission structure, closing the cover 5 and forming a sealed space. Example 2

[0055] The difference between this embodiment and Embodiment 1 is that protective pads are provided at the four corners of the bottom of the support leg 2. The protective pads are made of wear-resistant rubber material, which can effectively prevent the equipment from sliding or shifting during operation. At the same time, the design of the protective pads can also reduce the direct contact between the equipment and the ground, avoiding damage caused by friction.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A film-coated premix moisture meter comprising a base (1), characterised in that: The base (1) is fixedly equipped with support legs (2) at each of its four bottom corners, and also includes: Side plate (3) is fixedly installed on the rear side of base (1), and top plate (4) is fixedly installed on the top of side plate (3). The cover (5) is fixedly installed on the top of the base (1), and an electronic scale (15) is fixedly installed on the bottom inside the cover (5). The pre-feeding platform (20) and the discharge placement platform (41) are fixedly installed on the front and rear sides of the top of the base (1) respectively, for temporarily storing the premix containers to be tested and those already tested; A moisture drying mechanism is located inside the base (1) and is used to deliver hot airflow into the cover (5) to dry the premix. The leveling mechanism is located inside the cover (5) and is used to level the premix in the premix container to avoid accumulation and uneven drying. The feeding and discharging mechanism is located inside the side plate (3) and is used to transfer the premix container to be measured on the prefeeding platform (20) to the electronic scale (15) and transfer the premix container that has been measured on the electronic scale (15) to the discharge placement platform (41). An auxiliary mechanism is located inside the cover (5) to close or open the cover (5) to form a sealed space to reduce the loss of hot air.

2. The moisture meter for a film-coating premix according to claim 1, characterized in that: The moisture drying mechanism includes a heating chamber (6) located on the bottom side of the base (1). A partition is provided inside the heating chamber (6). A connecting groove 1 (12) and a connecting groove 2 (13) connecting the cover (5) are provided on the top of the heating chamber (6). The connecting groove 1 (12) is located in front of the connecting groove 2 (13). A motor 1 (8) is fixedly installed on the top side inside the heating chamber (6). A fan blade (9) is fixedly installed on the output shaft of the motor 1 (8). A heater (10) is fixedly installed on the rear side of the partition. A heating rod (11) penetrating the partition is fixedly installed at the front end of the heater (10).

3. The moisture meter for a film-coating premix according to claim 1, characterized in that: The leveling mechanism includes a hydraulic cylinder (16) fixedly installed on the top side inside the cover (5). The output shaft of the hydraulic cylinder (16) is fixedly installed with a motor (17). The output shaft of the motor (17) is fixedly installed with a rotating column (18). The bottom end of the rotating column (18) is fixedly installed with a leveling plate (19) adapted to the premix container.

4. The moisture analyzer for film-coating premixes according to claim 1, characterized in that: The feeding and discharging mechanism includes a motor four (29) fixedly installed inside the front side of the side plate (3). The output shaft of the motor four (29) is fixedly installed with a screw two (30). The screw two (30) is rotatably connected to the side plate (3). Two movable plates two (31) are threadedly connected to the screw two (30). Both movable plates two (31) are slidably connected to the side plate (3).

5. The moisture analyzer for film-coating premixes according to claim 4, characterized in that: Hydraulic cylinders 21 are fixedly installed on the left side of both movable plates 2 (31). A fixed block (22) is fixedly connected to the output end of the hydraulic cylinders 2 (21). A motor 3 (23) is fixedly installed on the front side inside the fixed block (22). Screws 1 (24) are fixedly installed on the two output shafts of the motor 3 (23). Both screws 1 (24) are rotatably connected to the fixed block (22). Movable plates 1 (25) are threadedly connected to both screws 1 (24). Both movable plates 1 (25) are slidably connected to the fixed block (22). An arc-shaped clamping plate (26) is fixedly connected to the left side of both movable plates 1 (25).

6. The moisture analyzer for film-coated premixes according to claim 5, characterized in that: The auxiliary mechanism includes recycling troughs (28) on the front and rear sides of the cover (5). Each of the two recycling troughs (28) is slidably connected to a sealing plate (27). The side plate (3) is rotatably connected to a vertical screw three (32) located directly behind each of the two recycling troughs (28). Each of the two screw three (32) is threadedly connected to a movable plate three (33). Both movable plates three (33) are slidably connected to the side plate (3). The two movable plates three (33) are fixedly connected to the two sealing plates (27).

7. The moisture analyzer for film-coated premixes according to claim 6, characterized in that: A rack (34) is fixedly installed on the right side of the movable plate 2 (31) located at the front. The rack (34) is meshed with a gear (35), and a rotating column 1 (36) is fixedly connected to the gear (35).

8. The moisture analyzer for film-coated premixes according to claim 7, characterized in that: The top ends of the two screws (32) are fixedly connected to the rotating column (39), which is rotatably connected to the top plate (4). The outer surfaces of the two rotating columns (39) are fixedly mounted with sprockets (38). The outer surface of the rotating column (36) is fixedly connected to two sprockets (37), and two chains (40) are meshed between the two sprockets (37) and the two sprockets (38).

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