A fully automatic timing sampler device and method based on powdered monoammonium phosphate

Abstract

The present invention relates to the technical field of powder sampling, and discloses a fully automatic timed sampler device and method based on powdered monoammonium phosphate, wherein the fully automatic timed sampler device based on powdered monoammonium phosphate includes a sleeve and a sampling tube fixedly connected to the sleeve, a driver is located on one side of a shaft disk, the shaft disk does not contact the sampler when it is in an initial position, and generates random rotation through the driver, and a telescopic rod passes through the shaft disk, so that the sampler randomly samples inside the sleeve. The driver transmits friction to the shaft disk, so that the telescopic rod pushes the shaft disk with a concave and convex outer edge to move, thereby pushing the sampler, so that the sampler can perform efficient and random sampling at different positions, so that the sampler forms a complex and unpredictable spatial motion trajectory inside the sleeve, thereby realizing all-round random sampling of powdered phosphoric acid, and the sampling point distribution has no obvious regularity, effectively avoiding sampling deviation.

Description

Technical Field

[0001] The present invention relates to the technical field of powder sampling, and in particular to a fully automatic timing sampler device and method based on powdered monoammonium phosphate. Background Art

[0002] As a basic chemical raw material, phosphoric acid is widely used in many industries, including food additives, feed, pesticides, detergents, electronics, medicine, water treatment, smelting, flame retardants, and fertilizers. Depending on the level of impurities in phosphoric acid, it can be divided into fertilizer grade, industrial grade, and food grade. Therefore, random sampling and testing are necessary to control the quality of powdered phosphoric acid.

[0003] However, in the prior art, random sampling is usually performed by manually holding a cannula, opening the powdered phosphoric acid package, and then inserting the cannula into the package to allow the powdered phosphoric acid to enter the cannula, which is then stored. Alternatively, a semi-automatic platform device is used to assist in cannula sampling. However, in actual sampling, since powdered phosphoric acid is usually packaged in bags or barrels, samplers tend to sample from easily accessible locations, such as inserting the cannula from the top of the packaging bag or sampling from the edge of the barrel. Taking bagged packaging as an example, this sampling method results in most samples being drawn from a single area of ​​the packaging container, while the material at the bottom or around the cannula is ignored due to inconvenience in sampling or the inability to repeat sampling. As a result, the sample cannot truly reflect the uniformity and quality characteristics of the entire batch of materials, and there is a deviation in the sampling position. , affecting the authenticity of random sampling, and the subjective judgment and operating habits of the sampling personnel will also seriously affect the randomness of the sampling. Even if there are sampling standards and methods, the operators will unconsciously sample according to their habits, resulting in the sampling results not accurately representing the quality of the entire batch of powdered phosphoric acid. In addition, in order to ensure that the samples taken can meet the analysis requirements of various test indicators, and taking into account possible test errors or repeated tests, the samplers often take more samples, and in this process, it is easy to cause the phosphoric acid in the sampled phosphoric acid bag to leak and be wasted. In addition, because the particle size and fluidity of powdered phosphoric acid vary significantly under different production processes, the existing sampling device lacks universality for powdered phosphoric acid with different characteristics, making sampling inconvenient. Summary of the Invention

[0004] The object of the present invention is to provide a fully automatic timed sampler device and method based on powdered monoammonium phosphate to solve the problem that random sampling cannot reflect the true quality of powdered phosphoric acid.

[0005] On the one hand, the present invention proposes: a fully automatic timed sampler device based on powdered monoammonium phosphate, a sleeve, and also includes a sampling tube fixedly connected to the sleeve, a mounting tube fixedly connected to the sampling tube, a sampler arranged inside the sampling tube, a telescopic part arranged outside the sampler, a partition plate slidably connected to the inside of the sampling tube, a telescopic rod fixedly connected to the inside of the mounting tube, an axis disk rotatably connected to the output end of the telescopic rod, and a driver arranged inside the mounting tube, the sampling tube is located between the sleeve and the mounting tube, the axis disk is located between the sampler and the telescopic rod, the outer edge of the axis disk is concave and convex, the driver is located on one side of the axis disk, the axis disk does not contact the sampler when it is in the initial position, and generates random rotation through the driver, the telescopic rod passes through the axis disk, so that the sampler randomly samples inside the sleeve.

[0006] Furthermore, the sampler includes a round rod located inside the separating plate, a storage cup fixedly connected to the round rod, a sealing plate fixedly connected to one end of the round rod, a connecting plate rotatably connected to the other end of the round rod, a circular ring fixedly connected to the round rod, and a circular shaft fixedly connected to the circular ring. The connecting plate is slidably connected to the inside of the sampling tube and fits with the circular ring, and the telescopic part is located between the connecting plate and the separating plate.

[0007] Furthermore, a guide groove and a horizontal groove are provided inside the sampling tube, the end of the circular axis away from the circular ring is located inside the guide groove, one side of the connecting plate and the separating plate is located inside the horizontal groove, and a guide hopper is provided at the bottom end of the sampling tube.

[0008] Furthermore, a sleeve is provided at the output end of the telescopic rod, the shaft disc is rotatably connected to the sleeve, a straight rod is slidably connected between the sleeve and the disc, and when the shaft disc is in the initial position, one end of the straight rod is in contact with the disc.

[0009] Furthermore, the shaft disk includes a rotating shaft rotatably connected to the inside of the sleeve, and a concave-convex disk fixedly connected to the outside of the rotating shaft, the distance from the edge of the concave-convex disk to the center of the concave-convex disk is smaller than the radius of the sleeve, and the outside of the rotating shaft close to one end of the driver is treated with high friction.

[0010] Furthermore, the driver includes a motor and a drive belt arranged inside the mounting tube, the drive belt is connected to the output end of the motor, a convex strip is provided on the drive belt, and the portion of the drive belt without the convex strip does not contact the rotating shaft.

[0011] Furthermore, the guide groove is divided into an inclined section and a straight section. When the concave-convex disk is located at an initial position, the length of the inclined section is smaller than the distance from the storage cup to the sleeve.

[0012] Furthermore, the sleeve and the sampling tube are interconnected, and two guide plates are provided inside the sleeve. The two guide plates are symmetrical about the central axis of the sleeve, and the storage cup is located below the guide plates.

[0013] Furthermore, a limiting sleeve is provided on one side of the separating plate close to the connecting plate, and the telescopic member includes a left sleeve ring rotatably connected to the inside of the separating plate, a right sleeve ring rotatably connected to the inside of the circular ring, and a spring connected between the left sleeve ring and the right sleeve ring.

[0014] In another aspect, the present invention provides a method for fully automatic timing sampling of powdered monoammonium phosphate, using a fully automatic timing sampler device based on powdered monoammonium phosphate, comprising the following steps:

[0015] Step 1: Determine the sampling specifications. The samples should be products of the same variety, specification and batch.

[0016] Step 2: Install the storage bottle below the sampling tube to ensure that the sampled powdered phosphoric acid is divided into clean and dry bottles, with a single bottle containing no less than 2 kg of sample.

[0017] Step 3: Use random sampling to randomly select samples, pour the packaged powdered phosphoric acid into the inside of the sleeve, start the telescopic rod to drive the sampler through the shaft disk, so that the sampler randomly samples inside the sleeve and pours it into the storage bottle.

[0018] Step 4: Seal the sampled powdered phosphoric acid and label it with relevant information for subsequent testing to determine whether the raw materials meet production requirements.

[0019] Beneficial effects of the present invention:

[0020] 1. The friction generated by the driver is transmitted to the shaft disc, so that the telescopic rod pushes the shaft disc with a concave and convex outer edge to move, thereby pushing the sampler, so that the sampler can perform efficient and random sampling at different positions, and the sampler forms a complex and unpredictable spatial motion trajectory inside the casing, thereby realizing all-round random sampling of powdered phosphoric acid, and the distribution of sampling points has no obvious pattern, effectively avoiding sampling deviation.

[0021] 2. Pour powdered phosphoric acid into the casing and collect the unsampled powdered phosphoric acid to avoid waste. In this way, the sampler can realize fully automatic random sampling of powdered phosphoric acid. The internal area of ​​the casing is used to increase the coverage of sampling points, completely getting rid of the subjective arbitrariness and position limitations of manual sampling, and effectively solving the problems of sampling position deviation and lack of randomness. The sampled samples are more representative and can accurately reflect the quality of the entire batch of powdered phosphoric acid, providing reliable data support for subsequent quality testing.

[0022] 3. By forming a stable frame with structures such as sampling tubes and mounting tubes, complex connectors are reduced, and motors and telescopic rods are used as drives to avoid multi-stage transmission structures. The structure is simple and the control operation is convenient. At the same time, the sampler integrates sample storage, sealing and movement functions into one, avoiding sample contamination and reducing structural complexity and failure probability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the fully automatic timing sampler from the first perspective;

[0024] Figure 2 It is a top view of the casing of the fully automatic timing sampler;

[0025] Figure 3 Fully automatic timing sampler Figure 2 Cross-sectional view at AA in the middle;

[0026] Figure 4 It is a structural diagram of the sampler of the fully automatic timing sampler;

[0027] Figure 5 It is a cross-sectional view of the overall structure of the fully automatic timing sampler;

[0028] Figure 6 This is a structural diagram of the shaft disc of the fully automatic timing sampler;

[0029] Figure 7 It is a schematic diagram of the structure of the driving belt of the fully automatic timing sampler;

[0030] Figure 8 It is a cross-sectional view of the casing of the fully automatic timing sampler;

[0031] Figure 9 This is a schematic diagram of the structure of the sampling tube of the fully automatic timing sampler.

[0032] In the picture:

[0033] 1. Sleeve; 101. Guide plate; 2. Sampling tube; 21. Guide groove; 22. Horizontal groove; 201. Guide hopper; 3. Mounting tube; 4. Sampler; 41. Round rod; 42. Storage cup; 43. Sealing piece; 44. Connecting plate; 45. Ring; 46. Round shaft; 5. Telescopic part; 51. Left sleeve; 52. Right sleeve; 53. Spring; 6. Separating plate; 61. Limiting sleeve; 7. Telescopic rod; 71. Connecting sleeve; 72. Straight rod; 8. Shaft disc; 81. Rotating shaft; 82. Concave and convex disc; 9. Driver; 91. Motor; 92. Drive belt; 921. Raised strip. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Example 1, refer to Figures 1-9 , which is the first embodiment of the present invention, provides a fully automatic timing sampler device based on powdered monoammonium phosphate, including a sleeve 1, a sampling tube 2 fixedly connected to the sleeve 1, a mounting tube 3 fixedly connected to the sampling tube 2, a sampler 4 arranged inside the sampling tube 2, a telescopic member 5 arranged outside the sampler 4, a partition plate 6 slidably connected to the inside of the sampling tube 2, a telescopic rod 7 fixedly connected to the inside of the mounting tube 3, an axis disk 8 rotatably connected to the output end of the telescopic rod 7, and a driver 9 arranged inside the mounting tube 3, the sampling tube 2 is located between the sleeve 1 and the mounting tube 3, the axis disk 8 is located between the sampler 4 and the telescopic rod 7, the driver 9 is located on one side of the axis disk 8, the axis disk 8 does not contact the sampler 4 when it is in the initial position, and generates random rotation through the driver 9, and the telescopic rod 7 passes through the axis disk 8, so that the sampler 4 randomly samples inside the sleeve 1.

[0036] Specifically, the driver 9 drives the shaft disk 8 to rotate at a random angle, and the telescopic rod 7 needs to pass through the shaft disk 8 as a medium to push the sampler 4. By extending and retracting with the telescopic rod 7, the sampler 4 is driven to move in a random direction and depth inside the sleeve 1. That is, since the shaft disk 8 rotates at different angles and its outer edge is concave and convex, the sampler 4 can produce different displacements in the horizontal direction, thereby realizing random position sampling of powdered phosphoric acid in the package, effectively avoiding the subjective tendency of manual sampling, and ensuring the randomness and authenticity of the sampling. In addition, the device is also equipped with an intelligent timing control system, which automatically controls the sampling frequency of the sampler 4 by setting different time intervals. At the same time, when the device is started, the driver 9 is started once after the telescopic rod 7 is extended and retracted once.

[0037] Reference Figure 2-Figure 4 The sampler 4 includes a round rod 41 located inside the separating disk 6, a storage cup 42 fixedly connected to the round rod 41, a sealing sheet 43 fixedly connected to one end of the round rod 41, a connecting disk 44 rotatably connected to the other end of the round rod 41, a circular ring 45 fixedly connected to the round rod 41, and a circular shaft 46 fixedly connected to the circular ring 45. The connecting disk 44 is slidably connected to the inside of the sampling tube 2 and fits with the circular ring 45. The telescopic part 5 is located between the connecting disk 44 and the separating disk 6, and the separating disk 6 is rotatably connected to the outside of the round rod 41.

[0038] Specifically, the interior of the storage cup 42 has an ultra-smooth surface, which effectively prevents powdered materials from adhering. At the same time, the outer edge of the storage cup 42 is a guide slope with an inclination angle of forty-five degrees. When the sampling is completed, it is convenient for the material to be poured out smoothly under the action of gravity. The sealing piece 43 is made of silicone rubber to effectively ensure the sealing of the sampling tube 2 to avoid external contamination. The outer diameter of the connecting disk 44 and the inner surface of the sampling tube 2 are polished to ensure that the connecting disk 44 can only slide axially and cannot rotate circumferentially, while the round rod 41 can rotate inside the connecting disk 44, and the structures fixedly connected to the round rod 41 will rotate synchronously.

[0039] Reference Figure 2-Figure 5 A guide groove 21 and a horizontal groove 22 are provided inside the sampling tube 2. The end of the circular shaft 46 away from the circular ring 45 is located inside the guide groove 21. One side of the connecting plate 44 and the separating plate 6 is located inside the horizontal groove 22. A material guide hopper 201 is provided at the bottom end of the sampling tube 2, and a storage bottle can be installed at the bottom of the material guide hopper 201.

[0040] Specifically, after the connecting plate 44 is pushed, the sampler 4 will move synchronously as a whole. When the circular shaft 46 moves synchronously, the end of the circular shaft 46 located inside the guide groove 21 will be restricted by the path of the guide groove 21, thereby generating rotation, so that the circular rod 41 drives the receiving cup 42 to rotate, and the powder is collected and poured out by the rotation of the receiving cup 42. In addition, the horizontal groove 22 provides a horizontal movement track for the connecting plate 44 and the separating plate 6. The two slide smoothly on the inner wall of the sampling tube 2. At the same time, the two are supported by the circular rod 41 and will not rotate. The receiving cup 42 will rotate when moving with the circular rod 41, so that after the receiving cup 42 leaves the sampling tube 2, its opening faces upward, thereby collecting powder. After the receiving cup 42 retracts into the sleeve 1, it will rotate and pour the receiving cup 42 into the guide hopper 201, and the guide hopper 201 will gather the powder into the storage bottle installed at the bottom.

[0041] Reference Figure 2-Figure 7 The output end of the telescopic rod 7 is provided with a sleeve 71, the shaft disc 8 is rotatably connected to the sleeve 71, and a straight rod 72 is slidably connected between the sleeve 71 and the connecting disc 44. When the shaft disc 8 is in the initial position, one end of the straight rod 72 is in contact with the connecting disc 44.

[0042] Specifically, when the telescopic rod 7 is extended, the connecting sleeve 71 is used to drive the shaft disc 8 to push the connecting disc 44 to move, and when the telescopic rod 7 is retracted, the straight rod 72 is used to pull the connecting disc 44, so that the connecting disc 44 moves back. At this time, the shaft disc 8 will be in contact with the connecting disc 44. In order to ensure that the shaft disc 8 does not contact the connecting disc 44 when it is in the initial position, there must be a sufficient gap between the two so as not to affect the rotation of the shaft disc 8 with inertia. Then, the length of the straight rod 72 is used to make the shaft disc 8 fit with the connecting disc 44. When the shaft disc 8 is in contact with the connecting disc 44, the straight rod 72 is close to one end of the connecting disc 44, and this end does not contact the connecting disc 44. When the shaft disc 8 is in the initial position, this end fits with the connecting disc 44.

[0043] That is to say, when the shaft disc 8 is in the initial position, the telescopic rod 7 is extended, and the shaft disc 8 moves synchronously with the straight rod 72. After the shaft disc 8 moves, it fits with the connecting disc 44, and the straight rod 72 also moves synchronously with the shaft disc 8. The end of the straight rod 72 close to the connecting disc 44 will no longer fit with the connecting disc 44. However, when the shaft disc 8 shrinks and moves back with the telescopic rod 7, one end of the straight rod 72 will fit with the connecting disc 44 and pull the connecting disc 44 back, so that the sampler 4 moves back as a whole.

[0044] Reference Figure 2-Figure 7 The shaft disk 8 includes a rotating shaft 81 rotatably connected to the inside of the sleeve 71, and a concave-convex disk 82 fixedly connected to the outside of the rotating shaft 81. The distance from the edge of the concave-convex disk 82 to the center of the concave-convex disk 82 is smaller than the radius of the connecting disk 44, so that the concave-convex disk 82 can enter the interior of the sampling tube 2. The length of the rotating shaft 81 is also smaller than the inner diameter of the sampling tube 2. The outer side of the rotating shaft 81 close to the driver 9 is treated with high friction.

[0045] Specifically, when the driver 9 is started, its output shaft drives one end of the rotating shaft 81 to rotate through high friction. Since the rotating shaft 81 and the sleeve 71 are rotatably connected through a bearing, the concave-convex disk 82 performs circular motion with the rotating shaft 81 as the center. Since the concave-convex structure on the outer edge of the concave-convex disk 82 is asymmetrically distributed, when the sleeve 71 pushes the sampler 4 through the concave-convex disk 82, due to the rotation of the concave-convex disk 82, the contact surface between the concave-convex disk 82 and the sampler 4 is random, so that the horizontal movement length of the sampler 4 is highly random without intelligent control, thereby realizing random sampling of powdered phosphoric acid at different horizontal positions.

[0046] The outer edge of the concave-convex disk 82 has a concave-convex structure, which can be understood as the outer edge is divided into multiple areas, and the distances between each area and the center of the concave-convex disk 82 are different.

[0047] Specifically, since the extension length of the telescopic rod 7 is fixed, when the raised area of ​​the concave-convex disk 82 rotates to contact the sampler 4, the sampler 4 is pushed to move a longer distance, and when the area of ​​the concave-convex disk 82 relatively close to the center of the circle contacts the sampler 4, the sampler 4 moves a shorter distance, causing the horizontal movement trajectory of the connecting disk 44 to show random changes.

[0048] Reference Figure 2-Figure 7 The driver 9 includes a motor 91 and a drive belt 92 arranged inside the mounting tube 3. The drive belt 92 is connected to the output end of the motor 91. A ridge 921 is provided on the drive belt 92. The portion of the drive belt 92 where the ridge 921 is not provided does not contact the rotating shaft 81.

[0049] Among them, the motor 91 can cooperate with conventional relay equipment to realize precise operation control of the rotation of the motor 91. For example, during the rotation of the motor 91, it can automatically stop after three rotations. At the same time, when the drive belt 92 is not driven by the motor 91, the drive belt 92 is provided with an area of ​​the convex strip 921, which is located in the lower half of the drive belt 92. At this time, the drive belt 92 as a whole does not contact one end of the rotating shaft 81. Then, after the motor 91 rotates three times, the convex strip 921 area is still located in the lower half of the drive belt 92.

[0050] Specifically, the motor 91 causes the drive belt 92 to rotate, and the ridges 921 on the drive belt 92 will also periodically contact the rough area outside one end of the rotating shaft 81. After the motor 91 stops, the drive belt 92 stops moving synchronously. At this time, the ridges 921 on the drive belt 92 are again located at the lower half of the drive belt 92, and then the drive belt 92 is used to run at a stable linear speed. The ridges 921 quickly and intermittently contact the concave-convex disk 82, and then the ridges 921 can intermittently and continuously use friction to drive the rotating shaft 81, causing the concave-convex disk 82 to rotate briefly and quickly. When the motor 91 stops, the drive belt 92 will no longer contact the rotating shaft 81, and the rotating shaft 81 and the concave-convex disk 82 will also automatically rotate until they stop due to rotational inertia, using friction and intermittent and rapid drive to cause the rotating shaft 81 to rotate randomly.

[0051] In addition, the surface of the ridges 921 is frosted to increase the friction when in contact with the rotating shaft 81. At the same time, the discontinuous distribution of the ridges 921 of the driving belt 92 further increases the randomness of the movement trajectory of the concave-convex disk 82. The surface of the portion of the driving belt 92 where the ridges 921 are not set is smooth.

[0052] Reference Figure 3-Figure 8 The guide groove 21 is divided into an inclined section and a straight section. When the concave-convex disk 82 is in the initial position, the length of the inclined section is less than the distance from the receiving cup 42 to the sleeve 1, ensuring that the receiving cup 42 only rotates inside the sampling tube 2. When the receiving cup 42 is outside the sampling tube 2, its opening is always facing upward.

[0053] Reference Figures 1-9The sleeve 1 and the sampling tube 2 are interconnected. Two guide plates 101 are provided inside the sleeve 1. The two guide plates 101 are symmetrical about the central axis of the sleeve 1. The storage cup 42 is located below the guide plates 101. A storage bag needs to be placed below the sleeve 1. Phosphoric acid is directly introduced into the sleeve 1. The two guide plates 101 in the sleeve 1 are used to guide the phosphoric acid to the central axis area of ​​the storage cup 42. At the same time, due to the narrow spacing between the two guide plates 101, the falling speed of the phosphoric acid is slowed down, which can achieve the guidance of powders of different particle sizes and improve adaptability. At the same time, the storage bag is used to directly store the unsampled powder to avoid waste. At the same time, since the whole bag of phosphoric acid is introduced into the sleeve 1, the storage cup 42 will not only sample a single area when sampling. At the same time, the introduced phosphoric acid will also be loosened due to the impact, making the sampling of the storage cup 42 more random.

[0054] Reference Figures 1-9 A limiting sleeve 61 is provided on the side of the separating disk 6 close to the connecting disk 44 to limit the overall moving length of the sampler 4. The telescopic part 5 includes a left ring 51 rotatably connected to the inside of the separating disk 6, a right ring 52 rotatably connected to the inside of the circular ring 45, and a spring 53 connected between the left ring 51 and the right ring 52. The surfaces of the left ring 51 and the right ring 52 need to be smoothed and coated with lubricant to ensure that the distortion of the spring 53 is reduced when the circular ring 45 rotates.

[0055] Specifically, the telescopic part 5 is a structure connected between the separating disk 6 and the connecting disk 44. The separating disk 6 blocks the powder in the guide hopper 201. Since the round rod 41 needs to move horizontally to enter the sleeve 1, and the separating disk 6 is fixed, it will block the connecting disk 44. Then, when the connecting disk 44 moves closer to the sleeve 1, the circular ring 45 will drive the right sleeve ring 52, so that the spring 53 pushes the separating disk 6. When the separating disk 6 is blocked by one end inside the sampling tube 2, the right sleeve ring 52 will be affected by the circular ring 45 and compress the spring 53. When the connecting disk 44 moves back, the spring 53 rebounds, and then the connecting disk 44 uses the spring 53 to pull the separating disk 6 back. The separating disk 6 is a hard plastic surface with a silicone sheet.

[0056] The working principle of the present invention is as follows: before the equipment is started, a whole bag of powdered monoammonium phosphate is introduced into the sleeve 1, and the two guide plates 101 are used to guide the powdered phosphoric acid to the central axis area of ​​the storage cup 42, ensuring that the material can accurately enter the storage cup 42, while slowing down the falling speed of the material to ensure that the storage cup 42 can be sampled multiple times. At this time, the shaft disc 8 is in the initial position, the concave and convex disc 82 of the shaft disc 8 is not in contact with the sampler 4, and one end of the straight rod 72 is in contact with the connecting disc 44, and the spring 53 is in a natural undeformed state. When the equipment is started, the telescopic rod 7 begins to extend, and the telescopic rod 7 uses the connecting sleeve 71 to drive the rotating shaft 81 The concave-convex disc 82 moves toward the position close to the sleeve 1, and the concave-convex disc 82 then fits with the connecting disc 44, pushing the connecting disc 44 to move, so that the sampler 4 is translated into the sleeve 1 as a whole. In this process, the circular shaft 46 moves in the guide groove 21. When passing through the inclined section of the guide groove 21, it is affected by the path of the inclined section to rotate, driving the round rod 41 and the receiving cup 42 to rotate, so that the opening of the receiving cup 42 faces upward and is ready for sampling. At the same time, the connecting disc 44 is driven by the ring 45 to push the right ring 52, compress the spring 53 and drive the separating disc 6 to move toward the sleeve 1. The separating disc 6 is pulled by the sampling tube 2 is blocked at one end, the right ring 52 continues to be acted upon by the ring 45, compressing the spring 53. At this time, the receiving cup 42 will be located in the sleeve 1 to receive the falling powdered phosphoric acid. During the contraction of the telescopic rod 7, the straight rod 72 moves synchronously with one end to fit the connecting plate 44, pulling the connecting plate 44 back. At this time, the sampler 4 moves back as a whole, and the ring 45 also uses the spring 53 to pull back the separating plate 6. At the same time, the circular shaft 46 passes through the oblique section of the guide groove 21 again, driving the receiving cup 42 to rotate, so that the rotating opening of the receiving cup 42 gradually faces downward. The materials are gathered through the guide hopper 201 under the action of gravity and fall into the receiving cup installed at the bottom. In the bottle, after a single sampling is completed, the motor 91 starts to rotate for three weeks and then stops, and then the motor 91 rotates to drive the drive belt 92 to rotate, and the ridges 921 on the drive belt 92 periodically contact the rough area of ​​the outer wall of one end of the rotating shaft 81, so that the concave-convex disk 82 is driven to rotate in an intermittent and rapid manner. The drive belt 92 rotates for three weeks and stops synchronously. The ridges 921 are again located in the lower half of the drive belt 92 and no longer contact the rotating shaft 81. The shaft disk 8 continues to rotate due to inertia until it stops, and then the length of the overall movement of the sampler 4 next time is random, and the storage bottle can be replaced and wait for the next sampling instruction.

[0057] Example 2, refer to Figures 1-9 , which is a second embodiment of the present invention, provides a method for fully automatic timing sampling based on powdered monoammonium phosphate, using a fully automatic timing sampler device based on powdered monoammonium phosphate, including the following steps:

[0058] Step 1: Determine the sampling specifications. The samples should be products of the same variety, specification, and batch, and determine the product grade.

[0059] Step 2: Install the storage bottle below the sampling tube 2 to ensure that the sampled powdered phosphoric acid is divided into clean and dry bottles, with a single bottle containing no less than 2 kg of sample.

[0060] Step 3: Use random sampling to randomly select samples, pour the packaged powdered phosphoric acid into the inside of the sleeve 1, start the telescopic rod 7 to drive the sampler 4 through the shaft disk 8, so that the sampler 4 randomly samples the inside of the sleeve 1 and pours it into the storage bottle.

[0061] Step 4: Seal the sampled powdered phosphoric acid and label it with relevant information for subsequent testing to determine whether the raw materials meet production requirements.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully automatic timed sampler device based on powdered monoammonium phosphate, comprising a sleeve (1), characterized in that: The device further comprises a sampling tube (2) fixedly connected to the sleeve (1), a mounting tube (3) fixedly connected to the sampling tube (2), a sampler (4) arranged inside the sampling tube (2), a telescopic member (5) arranged outside the sampler (4), a partition plate (6) slidably connected inside the sampling tube (2), a telescopic rod (7) fixedly connected inside the mounting tube (3), an axis plate (8) rotatably connected to the output end of the telescopic rod (7), and a driver (9) arranged inside the mounting tube (3), wherein the sampling tube (2) is located between the sleeve (1) and the mounting tube (3), the axis plate (8) is located between the sampler (4) and the telescopic rod (7), the outer edge of the axis plate (8) is concave-convex, the driver (9) is located on one side of the axis plate (8), and the When the shaft disc (8) is in the initial position, it does not contact the sampler (4) and generates random rotation through the driver (9). The telescopic rod (7) passes through the shaft disc (8), so that the sampler (4) randomly samples inside the sleeve (1). The driver (9) drives the shaft disc (8) to rotate at a random angle. The telescopic rod (7) needs to pass through the shaft disc (8) as a medium to push the sampler (4). Through the expansion and contraction of the telescopic rod (7), the sampler (4) is driven to move in a random direction and depth inside the sleeve (1). Since the shaft disc (8) rotates at different angles and its outer edge is concave and convex, the sampler (4) can generate different displacements in the horizontal direction, thereby realizing random position sampling of powdered phosphoric acid in the package; The sampler (4) includes a round rod (41) located inside the separation plate (6), a storage cup (42) fixedly connected to the round rod (41), a sealing sheet (43) fixedly connected to one end of the round rod (41), a connecting plate (44) rotatably connected to the other end of the round rod (41), a circular ring (45) fixedly connected to the round rod (41), and a circular shaft (46) fixedly connected to the circular ring (45), the connecting plate (44) is slidably connected to the inside of the sampling tube (2) and fits with the circular ring (45), and the telescopic member (5) is located between the connecting plate (44) and the separation plate (6); A guide groove (21) and a horizontal groove (22) are provided inside the sampling tube (2); one end of the circular shaft (46) away from the circular ring (45) is located inside the guide groove (21); one side of the connecting plate (44) and the separating plate (6) is located inside the horizontal groove (22); and a guide hopper (201) is provided at the bottom end of the sampling tube (2).

2. The fully automatic timed sampler device based on powdered monoammonium phosphate according to claim 1, characterized in that: The output end of the telescopic rod (7) is provided with a connecting sleeve (71), the shaft disc (8) is rotatably connected to the connecting sleeve (71), a straight rod (72) is slidably connected between the connecting sleeve (71) and the connecting disc (44), and when the shaft disc (8) is in the initial position, one end of the straight rod (72) is in contact with the connecting disc (44).

3. The fully automatic timed sampler device based on powdered monoammonium phosphate according to claim 2, characterized in that: The shaft disc (8) includes a rotating shaft (81) rotatably connected to the inside of the connecting sleeve (71), and a concave-convex disc (82) fixedly connected to the outside of the rotating shaft (81), wherein the distance from the edge of the concave-convex disc (82) to the center of the concave-convex disc (82) is less than the radius of the connecting disc (44), and the outside of the rotating shaft (81) close to the end of the driver (9) is treated with high friction.

4. The fully automatic timed sampler device based on powdered monoammonium phosphate according to claim 3, characterized in that: The driver (9) comprises a motor (91) and a drive belt (92) arranged inside the mounting tube (3); the drive belt (92) is connected to the output end of the motor (91); a convex strip (921) is provided on the drive belt (92); and a portion of the drive belt (92) not provided with the convex strip (921) does not contact the rotating shaft (81).

5. The fully automatic timed sampler device based on powdered monoammonium phosphate according to claim 3, characterized in that: The guide groove (21) is divided into an oblique section and a straight section. When the concave-convex disc (82) is located at the initial position, the length of the oblique section is less than the distance from the storage cup (42) to the sleeve (1).

6. The fully automatic timed sampler device based on powdered monoammonium phosphate according to claim 2, characterized in that: The sleeve (1) and the sampling tube (2) are interconnected, and two guide plates (101) are provided inside the sleeve (1). The two guide plates (101) are symmetrical about the central axis of the sleeve (1), and the storage cup (42) is located below the guide plates (101).

7. The fully automatic timed sampler device based on powdered monoammonium phosphate according to claim 2, characterized in that: A limiting sleeve (61) is provided on one side of the separating disc (6) close to the connecting disc (44), and the telescopic member (5) comprises a left sleeve ring (51) rotatably connected to the interior of the separating disc (6), a right sleeve ring (52) rotatably connected to the interior of the circular ring (45), and a spring (53) connected between the left sleeve ring (51) and the right sleeve ring (52).

8. A method for fully automatic timing sampling of powdered monoammonium phosphate, using the fully automatic timing sampling device of powdered monoammonium phosphate according to claim 1, characterized in that: The following steps are involved: Step 1: Determine the sampling specifications. The samples should be of the same variety, specification and batch; Step 2: Install the storage bottle below the sampling tube (2) to ensure that the sampled powdered phosphoric acid is divided into clean and dry bottles, with the sample in each bottle being no less than 2 kg; Step 3: Using random sampling, pour the packaged powdered phosphoric acid into the interior of the sleeve (1), start the telescopic rod (7) to drive the sampler (4) through the shaft disc (8), so that the sampler (4) randomly samples the interior of the sleeve (1) and pours it into the storage bottle; Step 4: Seal the sampled powdered phosphoric acid and label it with relevant information for subsequent testing to determine whether the raw materials meet production requirements.

Images