A granular material sampling device

Abstract

The utility model relates to sampling device technical field, and disclose a kind of granular material quantitative sampling device, the granular material quantitative sampling device, including rack, the rack top inside fixed installation has feed hopper, sampling assembly is provided on the rack, and the sampling assembly includes discharge cylinder.This granular material quantitative sampling device, by setting sampling assembly, by the feed hopper on rack, so that granular material enters the inside of discharge cylinder downwards, when starting first motor, so that first auger paddle rotates and transports granular material to the inside of bottom cylinder, by starting second motor to preset rotational speed and rotating preset time, so that second auger paddle rotates and pushes out bottom cylinder to complete sampling with quantitative granular material, and simultaneously start the air pump on fixed frame, by the elbow pipe on pipe clamp to the inside of bottom cylinder discharge end blow, cooperate check valve to prevent granular material to enter the inside of elbow pipe, to avoid granular material residual in the inside of bottom cylinder when quantitative sampling influence quantitative sampling.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically a quantitative sampling device for granular materials. Background Technology

[0002] In many fields such as grain processing, chemical production, feed preparation, and pharmaceutical intermediate production, quality testing of pelleted feed is a key link in ensuring product quality. Quantitative sampling of pelleted feed is a preliminary step in the quality testing process. Accurate and stable quantitative sampling results directly determine the reliability of subsequent test data such as component analysis, purity testing, and particle size distribution determination.

[0003] With the industry's increasing demands for product quality and the widespread application of automated production lines, traditional methods relying on manual sampling or simple mechanical sampling are no longer sufficient to meet the needs of efficient, accurate, and continuous production testing.

[0004] However, existing particle sampling devices have shortcomings in practical applications. On the one hand, most sampling devices lack effective quantitative control mechanisms. Some devices using volumetric quantitative sampling are prone to large quantitative deviations due to differences in particle bulk density and particle agglomeration. They cannot accurately control rotation speed and rotation time to achieve stable quantitative conveying. Moreover, after sampling, particle material is easily left on the inner wall of the conveying channel. This residual material not only affects the quantitative accuracy of the next sampling, but also the feeding stage of existing devices generally lacks auxiliary guiding structures. Particle material is prone to bridging and accumulation in the feeding hopper due to differences in its own fluidity and uneven feeding speed, resulting in feeding interruption or fluctuation in feeding flow rate. This makes it impossible to improve the accuracy and stability of particle quantitative sampling. In view of this, we propose a particle quantitative sampling device. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative sampling device for granular materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quantitative sampling device for granular materials includes a frame, a feed hopper fixedly installed inside the top of the frame, and a sampling component disposed on the frame, the sampling component comprising:

[0008] The discharge cylinder is fixedly installed on the outside of one side of the bottom end of the feed hopper, and a first motor is fixedly installed on the other side of the bottom end of the feed hopper. A first auger is fixedly installed at the output end of the first motor. The two ends of the first auger are rotatably installed inside the side wall of the feed hopper and the discharge cylinder respectively through bearing components. Two spiral discs with opposite rotation directions are provided on the first auger.

[0009] The bottom cylinder is fixedly installed on the frame. The bottom output end of the discharge cylinder is fixedly connected to the top input end of the bottom cylinder. A second motor is fixedly installed on the inner wall of the frame. A second auger is fixedly installed on the output end of the second motor. The two ends of the second auger are rotatably installed inside the side wall of the bottom cylinder through bearing components.

[0010] A fixed frame is fixedly installed on the outer wall of the top of the frame. An air pump is fixedly installed on the other end of the fixed frame. The output end of the air pump is fixedly connected to one end of a bend. The bend is fixedly installed on the frame by a pipe clamp. The other end of the bend is fixedly installed inside the side wall of the bottom cylinder output end. A one-way valve is provided at the end of the bend near the bottom cylinder.

[0011] In a further embodiment, the bottom of the feed hopper is conical, which allows the granular material to be conveyed downwards more effectively.

[0012] In a further embodiment, both the first and second motors are geared servo stepper motors, which can better perform quantitative feeding.

[0013] In a further embodiment, the feed hopper is equipped with a granular material body.

[0014] In a further embodiment, the discharge cylinder is located directly above the bottom cylinder.

[0015] In a further embodiment, the feed hopper is equipped with an auxiliary component, which includes a third motor. The third motor is fixedly installed on the outer wall of the feed hopper, and a rotating rod is fixedly installed at the output end of the third motor. The two ends of the rotating rod are rotatably installed inside the side wall of the feed hopper through bearing components. A stirring rod is fixedly installed on the outside of the rotating rod to stir the granular material inside the feed hopper, thereby allowing the granular material to enter the discharge cylinder better, avoiding accumulation, and making the subsequent sampling process more stable.

[0016] In a further embodiment, multiple sets of stirring rods are provided, and the stirring rods are located directly above the first auger paddle.

[0017] Compared with the prior art, the present invention provides a quantitative sampling device for granular materials, which has the following beneficial effects:

[0018] 1. This granular material quantitative sampling device, in order to better perform quantitative sampling, is equipped with a sampling component. The granular material enters the discharge cylinder downward through the feed hopper on the frame. When the first motor is started, the first auger paddle rotates and transports the granular material into the bottom cylinder. By starting the second motor at a preset speed and rotation time, the second auger paddle rotates and pushes the quantitative granular material out of the bottom cylinder to complete the sampling. At the same time, the air pump on the fixed frame is started, and air is blown into the discharge end of the bottom cylinder through the bent pipe on the pipe clamp. With the help of a one-way valve, the granular material is prevented from entering the bent pipe. Thus, the granular material residue in the bottom cylinder is avoided during quantitative sampling, which affects the quantitative sampling.

[0019] 2. In order to make the sampling process more stable, this granular material quantitative sampling device is equipped with an auxiliary component. When the third motor is started, the rotating rod rotates, which drives the stirring rod to rotate synchronously. This stirs the granular material inside the feed hopper, allowing the granular material to enter the discharge cylinder better and avoid accumulation, thereby making the subsequent sampling process more stable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0023] Figure 4 This is a cross-sectional view of part of the structure of this utility model;

[0024] Figure 5 This is a cross-sectional view of part of the structure of this utility model from another perspective;

[0025] Figure 6 This is a cross-sectional view of the frame and some structural components of this utility model;

[0026] Figure 7 This is a schematic diagram of the cross-section of the first auger propeller of this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Frame; 2. Feed hopper;

[0029] 3. Sampling assembly; 31. Discharge cylinder; 32. First motor; 33. First auger propeller; 34. Bottom cylinder; 35. Second motor; 36. Second auger propeller; 37. Fixing frame; 38. Air pump; 39. Bend; 310. Pipe clamp; 311. Check valve;

[0030] 4. Auxiliary components; 41. Third motor; 42. Rotary rod; 43. Stirring rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0033] Please see Figures 1-7 This utility model provides a technical solution:

[0034] A quantitative sampling device for granular material includes a frame 1, a feed hopper 2 fixedly installed inside the top of the frame 1, a granular material body inside the feed hopper 2, and a cone-shaped bottom end of the feed hopper 2 to better convey the granular material downwards.

[0035] The pellet quantitative sampling device is based on the frame 1 as the basic support structure. The feed hopper 2 is fixedly installed inside the top of the frame 1. The pellet body is placed inside the feed hopper 2, and the bottom of the feed hopper 2 has a conical structure to guide the downward conveying of the pellet.

[0036] In one embodiment of this utility model, a sampling component 3 is provided on the frame 1. The sampling component 3 includes a discharge cylinder 31. The discharge cylinder 31 is fixedly installed on the outside of one side of the bottom end of the feed hopper 2. A first motor 32 is fixedly installed on the other side of the bottom end of the feed hopper 2. A first auger paddle 33 is fixedly installed at the output end of the first motor 32. The two ends of the first auger paddle 33 are rotatably installed inside the side walls of the feed hopper 2 and the discharge cylinder 31 respectively through bearing components. The first auger paddle 33 is provided with two spiral discs with opposite rotation directions. The bottom of the bottom cylinder 34 is fixedly installed on the frame 1. In addition, the discharge cylinder 31 is located directly above the bottom cylinder 34. The output end of the bottom of the discharge cylinder 31 is fixedly connected to the input end of the top of the bottom cylinder 34. The inner wall of the frame 1 A second motor 35 is fixedly installed. In addition, both the first motor 32 and the second motor 35 are geared servo stepper motors, which can better perform quantitative conveying. A second auger paddle 36 is fixedly installed at the output end of the second motor 35. The two ends of the second auger paddle 36 are rotatably installed inside the side wall of the bottom cylinder 34 through bearing components. A fixed frame 37 is fixedly installed on one end of the top outer wall of the frame 1. An air pump 38 is fixedly installed on the other end of the fixed frame 37. The output end of the air pump 38 is fixedly connected to one end of the bent pipe 39. The bent pipe 39 is fixedly installed on the frame 1 through the pipe clamp 310. The other end of the bent pipe 39 is fixedly installed inside the side wall of the output end of the bottom cylinder 34. A one-way valve 311 is provided at the end of the bent pipe 39 near the bottom cylinder 34.

[0037] In this embodiment, when the first motor 32, installed on the other side of the bottom of the feed hopper 2, is started, the output end of the first motor 32, acting as a power source, drives the first auger paddle 33 to rotate. Since the two ends of the first auger paddle 33 are rotatably mounted inside the side walls of the feed hopper 2 and the discharge cylinder 31 respectively via bearing components, and the first auger paddle 33 has two spiral discs rotating in opposite directions, the granules flow better. Under the rotation of the first auger paddle 33, some of the granules inside the feed hopper 2 are pushed into the discharge cylinder 31. The discharge cylinder 31 is fixedly installed on the outside of one side of the bottom of the feed hopper 2, directly above the bottom cylinder 34. Its bottom output end is fixedly connected to the top input end of the bottom cylinder 34. The granules are smoothly conveyed into the bottom cylinder 34 fixedly installed on the frame 1 through the discharge cylinder 31, completing the initial quantitative conveying of the granules. After the granules enter the bottom cylinder 34, the second motor 35, installed on the inner wall of the frame 1, is started. Both the first motor 32 and the second motor 35 are geared servo stepper motors, possessing precise... The ability to control the rotation speed and rotation time allows for better quantitative conveying. The output of the second motor 35 drives the second auger paddle 36 to rotate. The two ends of the second auger paddle 36 are rotatably mounted inside the side wall of the bottom cylinder 34 through bearing components. According to the preset rotation speed and rotation time, the second auger paddle 36 pushes out a fixed amount of granular material from the bottom cylinder 34, thereby completing the quantitative sampling operation. When the second auger paddle 36 pushes out the fixed amount of granular material, the air pump 38 installed on the fixed frame 37 is started. One end of the fixed frame 37 is fixedly installed on the top outer wall of the frame 1, and the other end is fixedly installed with the air pump 38. The quantitative airflow generated by the air pump 38 is delivered to the discharge end of the bottom cylinder 34 through the bend pipe 39 to blow away any granular material that may remain inside the bottom cylinder 34. At the same time, a one-way valve 311 is provided at the end of the bend pipe 39 near the bottom cylinder 34. The one-way valve 311 can effectively prevent granular material from entering the bend pipe 39 from the bottom cylinder 34, ensuring that the cleaning process is carried out smoothly and avoiding residual granular material from affecting the subsequent quantitative sampling accuracy.

[0038] Specifically, the controller can accurately calculate the number of rotations of the second motor 35 based on the preset sampling volume (e.g., 500mL). (For example, if each rotation delivers approximately 0.15L, it requires 3.33 rotations, corresponding to a rotation time of approximately 13.3 seconds.) When the second motor 35 reaches the preset rotation parameters, it automatically stops rotating. At this time, the second auger paddle 36 completely pushes the quantitative amount of granular material inside the bottom cylinder 34 out of the output end of the bottom cylinder 34 (a sampling container can be placed below the output end, and the container placement platform is connected to the frame 1 via a guide rail for easy and quick replacement).

[0039] In one embodiment of this utility model, an auxiliary component 4 is provided on the feed hopper 2. The auxiliary component 4 includes a third motor 41. The third motor 41 is fixedly installed on the outer wall of the feed hopper 2. A rotating rod 42 is fixedly installed at the output end of the third motor 41. The two ends of the rotating rod 42 are rotatably installed inside the side wall of the feed hopper 2 through bearing components. A stirring rod 43 is fixedly installed on the outside of the rotating rod 42 to stir the granular material inside the feed hopper 2, so that the granular material can enter the discharge cylinder 31 better and avoid accumulation, thereby making the subsequent sampling process more stable. In addition, multiple sets of stirring rods 43 are provided, and the stirring rods 43 are located directly above the first auger paddle 33.

[0040] In this embodiment, to ensure a more stable sampling process and prevent the accumulation of granular material inside the feed hopper 2 from affecting the conveying efficiency, the auxiliary component 4 works in conjunction with the auxiliary component 4. The third motor 41 installed on the outer wall of the feed hopper 2 is started. The output end of the third motor 41 drives the rotating rod 42 to rotate. The two ends of the rotating rod 42 are rotatably installed inside the side wall of the feed hopper 2 through bearing components. Multiple stirring rods 43 are fixedly installed on its exterior, and the stirring rods 43 are located directly above the first auger paddle 33. When the rotating rod 42 rotates, it drives the stirring rods 43 to rotate synchronously. The stirring rods 43 stir the granular material inside the feed hopper 2, breaking the possible accumulation of granular material, so that the granular material can enter the discharge cylinder 31 more smoothly, providing a guarantee for the stable operation of the subsequent sampling component 3, thereby ensuring the stability and continuity of the entire sampling process.

[0041] All electrical components mentioned in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the first motor 32, the second motor 35, the air pump 38, and the third motor 41. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The standard parts are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A quantitative sampling device for granular materials, comprising a frame (1), wherein a feed hopper (2) is fixedly installed inside the top of the frame (1), characterized in that: A sampling component (3) is provided on the frame (1), and the sampling component (3) includes: The discharge cylinder (31) is fixedly installed on one side of the bottom end of the feed hopper (2), and a first motor (32) is fixedly installed on the other side of the bottom end of the feed hopper (2). A first auger paddle (33) is fixedly installed at the output end of the first motor (32). The two ends of the first auger paddle (33) are rotatably installed inside the side wall of the feed hopper (2) and the discharge cylinder (31) respectively through bearing components. Two spiral discs with opposite rotation directions are provided on the first auger paddle (33). Bottom cylinder (34), the bottom of the bottom cylinder (34) is fixedly installed on the frame (1), the bottom output end of the discharge cylinder (31) is fixedly connected to the top input end of the bottom cylinder (34), the inner wall of the frame (1) is fixedly installed with a second motor (35), the output end of the second motor (35) is fixedly installed with a second auger paddle (36), and the two ends of the second auger paddle (36) are rotatably installed inside the side wall of the bottom cylinder (34) through bearing components; A fixed frame (37) is fixedly installed on the outer wall of the top of the frame (1). An air pump (38) is fixedly installed on the other end of the fixed frame (37). The output end of the air pump (38) is fixedly connected to one end of a bend (39). The bend (39) is fixedly installed on the frame (1) by a pipe clamp (310). The other end of the bend (39) is fixedly installed inside the side wall of the output end of the bottom cylinder (34). A one-way valve (311) is provided at the end of the bend (39) near the bottom cylinder (34).

2. The pellet quantitative sampling device according to claim 1, characterized in that: The bottom of the feed hopper (2) is conical.

3. The pellet quantitative sampling device according to claim 1, characterized in that: Both the first motor (32) and the second motor (35) are geared servo stepper motors.

4. The pellet quantitative sampling device according to claim 1, characterized in that: The feed hopper (2) is equipped with a granular material body.

5. The pellet quantitative sampling device according to claim 1, characterized in that: The discharge cylinder (31) is located directly above the bottom cylinder (34).

6. The pellet quantitative sampling device according to claim 1, characterized in that: An auxiliary component (4) is provided on the feed hopper (2). The auxiliary component (4) includes a third motor (41). The third motor (41) is fixedly installed on the outer wall of the feed hopper (2). A rotating rod (42) is fixedly installed at the output end of the third motor (41). The two ends of the rotating rod (42) are rotatably installed inside the side wall of the feed hopper (2) through bearing components. A stirring rod (43) is fixedly installed on the outside of the rotating rod (42).

7. The pellet quantitative sampling device according to claim 6, characterized in that: Multiple sets of stirring rods (43) are provided, and the stirring rods (43) are located directly above the first auger paddle (33).

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