Quantitative sampling device for powdery and granular materials

Abstract

The utility model relates to the technical field of material sampling equipment, in particular to a powder and granular material quantitative sampling device which comprises a stock bin, a discharging mechanism and a sampling mechanism are arranged at the bottom of the stock bin, the sampling mechanism comprises a sampling bin, and the sampling bin is communicated with the stock bin; a hydraulic cylinder is arranged in the sampling bin, a U-shaped plate is installed at the movable end of the hydraulic cylinder, the bottom of the side, away from the hydraulic cylinder, of the sampling bin communicates with a weighing bin, and a weight sensor is arranged on one side of the weighing bin. According to the quantitative sampling device for the powdery and granular materials, the sampling efficiency is high, the discharging amount can be controlled according to the required sampling amount through the arrangement of the sampling mechanism, the sampling is flexible, and the operation is convenient; the sampling mechanism not only can be matched with material pushing to collect sampled materials, but also can prevent the materials from entering the sampling bin when sampling is not carried out, and is simple and reasonable in structure and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to material sampling equipment technical field especially relates to a powder granular material quantitative sampling device. BACKGROUND

[0002] With the progress of science and technology, social development and the improvement of people's living standards, powder granular material (for example: salt, monosodium glutamate, isatis root medicine, chemical fertilizer, chemical raw material etc.) because of its unique physical state, better storage than liquid material, more convenient to dissolve than large block material, use, therefore, in each field application is more and more widely. Powder granular material often has greater volume and quality, directly to the whole batch of material analysis or detection is unrealistic, therefore, need through quantitative sampling to select a small part of representative sample for detection, with the quality of this part of sample to represent the average composition or characteristics of the whole batch of material, this can effectively reduce the analysis workload, at the same time guarantee the accuracy and reliability of the result. In the patent application No. CN202222222569.5, a kind of granular material quantitative automatic sampling device is disclosed, which drives the sampling shell to rotate by using a rotating mechanism, so that the quantitative sampling of granular sample can be realized. However, the device as a whole is small, and when a large amount of powder granular material needs to be sampled, multiple sampling is required, which leads to long sampling time and low sampling efficiency. Moreover, the device as a whole is slender, and material is easy to block when being sampled, which delays the progress of sampling. SUMMARY

[0003] In view of the above-mentioned defects, the purpose of the present utility model is to provide a powder granular material quantitative sampling device to solve the problems of low sampling efficiency and inaccurate sampling amount.

[0004] To achieve the above purpose, the utility model provides a powder granular material quantitative sampling device, which comprises a bin, a discharge mechanism and a sampling mechanism are arranged at the bottom of the bin, the sampling mechanism comprises a sampling bin, and the sampling bin is connected to the bin; a hydraulic cylinder is built-in the sampling bin, a U-shaped plate is installed at the movable end of the hydraulic cylinder, a weighing bin is connected to the bottom of the side of the sampling bin away from the hydraulic cylinder, and a weight sensor is arranged at one side of the weighing bin.

[0005] As a preferred technical solution, the U-shaped plate is arranged horizontally, the top side wall of the U-shaped plate can seal the discharge end of the flow-through pipe, and the bottom side wall of the U-shaped plate can push the material to fall into the weighing bin.

[0006] As a preferred technical solution, a discharge pipe is arranged at the bottom of the weighing bin, and a pipe cover that can be opened and closed is arranged on the discharge pipe.

[0007] As a preferred technical solution, the sampling bin is connected to the bottom of the bin through a flow-through pipe.

[0008] The auger is rotationally connected to the top end of the flow pipe, and the top end of the flow pipe is provided with a feeding port for connecting the hopper and the flow pipe.

[0009] The bottom end of the auger is rotationally connected to the fixed plate, and the fixed plate is fixedly connected to the discharging port end of the flow pipe, and the discharging port end of the flow pipe is also provided with a discharging port for connecting the flow pipe and the sampling bin.

[0010] As a preferred technical solution, a first bevel gear is connected to the outer side wall below the auger, the first bevel gear is engaged with a vertically arranged second bevel gear, the second bevel gear is connected to a first motor located outside the flow pipe, and the first bevel gear and the second bevel gear are arranged in a protective shell.

[0011] As a preferred technical solution, a hopper scale is arranged on the side wall of the hopper, a weighing bin scale is arranged on the weighing bin, the weighing bin is a transparent box structure, and the position where the hopper scale is arranged on the hopper is provided as a transparent plate structure.

[0012] As a preferred technical solution, two symmetrical stirring rods are arranged in the hopper, a plurality of material crushing rods are uniformly arranged on each stirring rod, and crushing balls are arranged at the ends of the material crushing rods.

[0013] As a preferred technical solution, the crushing balls arranged on the two stirring rods are staggered.

[0014] As a preferred technical solution, the ends of the two stirring rods are arranged to pass through the hopper, a drive gear is arranged at one end of each stirring rod passing through the hopper, and the two drive gears are engaged, and one of the drive gears is driven to rotate by a second motor.

[0015] As a preferred technical solution, the discharging mechanism comprises a discharging pipe arranged on the bottom side wall of the hopper.

[0016] The powder and particle material quantitative sampling device has high sampling efficiency; through the arrangement of the sampling mechanism, the discharge amount can be controlled according to the amount of required sampling, sampling is flexible, and operation is convenient; the sampling mechanism can not only collect the sampling material by cooperating with the material pushing, but also block the material from entering the sampling bin when sampling is not performed, and has the advantages of simple and reasonable structure and strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the powder and particle material quantitative sampling device of the utility model;

[0018] Figure 2 It is a position relationship schematic view of the hopper, the flow pipe, the sampling bin and the quantitative box.

[0019] Figure 3 It is the internal structure schematic view of flow pipe, sampling bin and quantitative box;

[0020] Figure 4 It is Figure 3 The enlarged view of A in the middle;

[0021] Figure 5 It is the internal structure schematic view of material bin;

[0022] In the figure:

[0023] 1-material bin, 2-transparent plate, 3-material bin scale, 4-flow pipe, 5-fixing plate, 6-auger, 7-first bevel gear, 8-first motor, 9-second bevel gear, 10-sampling bin, 11-hydraulic cylinder, 12-U-shaped plate, 13-weighing bin, 131-weight sensor, 132-discharging pipe, 133-pipe cover, 14-weighing bin scale, 15-second motor, 16-stirring rod, 161-material crushing rod, 162-crushing ball, 17-driving gear, 18-discharging pipe, 19-protection shell, 20-supporting frame, 21-supporting leg. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] Embodiment one:

[0026] Referring to Figures 1-3 The utility model provides a kind of powder and granular material quantitative sampling device, including material bin 1, the bottom of the material bin 1 is provided with discharging mechanism and sampling mechanism.

[0027] The discharging mechanism includes discharging pipe 18, and the discharging pipe 18 is arranged on the bottom side wall of the material bin 1.

[0028] The sampling mechanism includes sampling bin 10, and the sampling bin 10 is connected to the bottom of the material bin 1 by flow pipe 4. The sampling bin 10 is internally provided with hydraulic cylinder 11, the movable end of the hydraulic cylinder 11 is installed with U-shaped plate 12, and the bottom of the side of the sampling bin 10 away from the hydraulic cylinder 11 is communicated with weighing bin 13. The sampling mechanism can not only cooperate with the collection of sampling material when pushing material, but also can block material into the sampling bin when not sampling, so that the structure is simple, reasonable and practical.

[0029] Specifically, the U-shaped plate 12 is arranged transversely. When sampling is needed, the material in the sampling bin 10 is pushed into the weighing bin 13, the U-shaped plate 12 moves left and right, and the bottom side wall of the U-shaped plate 12 pushes the material to fall into the weighing bin 13; when sampling is not needed or sampling is finished, the U-shaped plate 12 moves towards the flow pipe 4 to the top side wall of the U-shaped plate 12 seals the discharge end of the flow pipe 4.

[0030] One side of the weighing bin 13 is provided with a weight sensor 131 for detecting the weight of the material in the weighing bin 13, so as to realize the quantitative weighing of the sampled material.

[0031] The bottom of the weighing bin 13 is provided with a discharge pipe 132 for taking out the sampled material; the discharge pipe 132 is provided with an openable and closable pipe cover 133. When the sampled material reaches the required quantity, it can be taken out through the discharge pipe 132 for material sampling.

[0032] The flow pipe 4 is provided with an auger 6, which facilitates stable conveying of the material, thereby preventing the phenomenon of material jamming. The top end of the auger 6 is rotatably connected to the inlet end of the flow pipe 4, and the inlet end of the flow pipe 4 is provided with an inlet for connecting the bin 1 and the flow pipe 4. The bottom end of the auger 6 is rotatably connected to the fixed plate 5, and the fixed plate 5 is fixedly connected to the outlet end of the flow pipe 4. The outlet end of the flow pipe 4 is also provided with an outlet for connecting the flow pipe 4 and the sampling bin 10.

[0033] Referring to Figure 4 , a first tapered gear 7 is connected to the outer side wall below the auger 6, the first tapered gear 7 is engaged with a second bevel gear 9 arranged vertically, the second bevel gear 9 is connected to a first motor 8 located outside the flow pipe 4, and the first motor 8 is fixed to the top of the sampling bin 10. The first tapered gear 7 and the second bevel gear 9 are arranged in a protective shell 19. The protective shell 19 not only protects the first tapered gear 7 and the second bevel gear 9 from being attacked by the powder and particle materials, but also does not block the powder and particle materials from falling into the sampling bin 10 from the flow pipe 4.

[0034] Specifically, the output end of the first motor 8 is fixedly connected to the second bevel gear 9 through a shaft. The weight sensor 131 detects the weight of the material in the weighing bin 13, and then transmits the material weight signal to the control system through the existing technology. The control system controls the movement of the first motor 8 and the hydraulic cylinder 11 by using the existing technology.

[0035] The side wall of the bin 1 is provided with a bin scale 3, and the weighing bin 13 is provided with a weighing bin scale 14. The bin scale 3 and the weighing bin scale 14 are both scales made of transparent material, and the material height of the reaction bin 1 and / or the weighing bin 13 is measured by the scale. One side wall of the bin 1 and the weighing bin 13 can also be made transparent, and the bin scale 3 and the weighing bin scale 14 are installed on the corresponding transparent part. Alternatively, a transparent plate 2 can be provided on one side wall of the bin 1, and the bin scale 3 is installed on the transparent plate 2. Through the bin scale 3 and the weighing bin scale 14, the material inside the bin scale 3 and the weighing bin scale 14 can be observed more intuitively.

[0036] Referring to Figure 2 and Figure 5 , the bin 1 is provided with two symmetrical stirring rods 16, and a plurality of material crushing rods 161 are uniformly distributed on each stirring rod 16. The end of the material crushing rod 161 is provided with a crushing ball 162. The crushing balls 162 provided on the two stirring rods 16 are staggered. The same end of the two stirring rods 16 penetrates out of the bin 1, and each stirring rod 16 is provided with a driving gear 17 at the end penetrating out of the bin 1. The two driving gears 17 are meshed and connected, and one of the driving gears 17 is driven to rotate by the second motor 15. The stirring rod 16 drives the material crushing rod 161 and the crushing ball 162 to rotate, which facilitates the stirring and crushing of the material, thereby avoiding the problem of material blockage caused by material blockage.

[0037] Referring to Figure 1 , the bin 1 is fixed left and right by a support frame 20, and the sampling bin 10 is fixed on the support frame 20. The support frame 20 is provided with a through hole that can pass through the weighing bin 13.

[0038] When sampling the powder and granular material, the material is first taken out from the material warehouse and then put into the inside of the feeding bin 1, and then the first motor 8 is started, when the output end of the first motor 8 rotates, the second bevel gear 9 is driven to rotate, the second bevel gear 9 meshes with the first bevel gear 7 to drive the first bevel gear 7 to rotate, so that the first bevel gear 7 drives the auger 6 to rotate, the auger transports the material in the inside of the feeding bin 1 to the sampling bin 10. When the material falls into the inside of the sampling bin 10, the hydraulic cylinder 11 is started, the output end of the hydraulic cylinder 11 drives the U-shaped plate 12 to move left and right in the inside of the sampling bin 10, and the material is pushed into the weighing bin 13, the weight sensor 131 weighs the material falling in the inside of the weighing bin 13, if the material reaches the quantitative, the weight sensor 131 controls the output end of the hydraulic cylinder 11 to move through the prior art, so that the U-shaped plate 12 seals the discharge end of the flow pipe 4. And the first motor 8 is controlled to be closed through the weight sensor 131, so that the auger 6 stops transporting the material, when the amount of the material falling into the inside of the weighing bin 13 does not reach the sampling amount standard, the weight sensor 131 controls the output end of the hydraulic cylinder 11 to drive the U-shaped plate 12 to retract through the prior art, so that the material in the inside of the sampling bin 1 falls to the sampling bin 10, and the output end of the hydraulic cylinder 11 drives the U-shaped plate 12 to push out, so that the material falling in the inside of the sampling bin 10 is pushed into the weighing bin 13, and the cycle is repeated until the sampling amount of the material reaches the standard.

[0039] In the utility model, the first motor 8 and the second motor 15 are all internally provided with electromagnetic locking structures, which belong to the prior art; the first motor 8, the second motor 15 and the weight sensor 131 are all matched with the prior art, so that the description is not repeated.

[0040] The utility model provides a kind of powder and granular material quantitative sampling device, sampling efficiency is high;Through the setting of sampling mechanism, the amount of discharge can be controlled according to the amount of required sampling, sampling is flexible, and it is convenient to operate;Sampling mechanism not only can cooperate with material pushing to collect sampling material, but also can block material into sampling bin when not sampling, with simple structure, reasonable, strong practicality.

[0041] Of course, the utility model also can have other various embodiments, without departing from the spirit and the essence of the utility model, skilled in the art person when can make various corresponding changes and deformation according to the utility model, but these corresponding changes and deformation all should belong to the protection scope of the claims attached to the utility model.

Claims

1. A quantitative sampling device for powdery and granular materials, comprising a silo (1), characterized in that: The bottom of the silo (1) is provided with a discharge mechanism and a sampling mechanism, the sampling mechanism comprising a sampling chamber (10), the sampling chamber (10) being connected to the silo (1); the sampling chamber (10) is provided with a hydraulic cylinder (11) built in, a U-shaped plate (12) being installed at the movable end of the hydraulic cylinder (11), the bottom of the sampling chamber (10) away from the hydraulic cylinder (11) being connected to a weighing chamber (13), and a weight sensor (131) being provided on one side of the weighing chamber (13).

2. A quantitative sampling device for powdery and granular materials according to claim 1, characterized in that: The U-shaped plate (12) is arranged transversely, the top side wall of the U-shaped plate (12) can seal the discharge end of the circulation pipe (4), and the bottom side wall of the U-shaped plate (12) can push the material into the weighing bin (13).

3. A quantitative sampling device for powdery and granular materials according to claim 2, characterized in that: A feeding pipe (132) is provided at the bottom of the weighing bin (13), and an openable and closable pipe cover (133) is provided on the feeding pipe (132).

4. A quantitative sampling device for powdery or granular materials according to any one of claims 1 to 3, characterized in that: The sampling bin (10) is connected to the bottom of the silo (1) via a circulation pipe (4); An auger (6) is provided in the circulation pipe (4), the top end of the auger (6) is rotatably connected to the feed port end of the circulation pipe (4), and the feed port end of the circulation pipe (4) is provided with a feed port for connecting the silo (1) and the circulation pipe (4); The bottom end of the auger (6) is rotatably connected to a fixed plate (5), and the fixed plate (5) is fixedly connected to the discharge port end of the circulation pipe (4). The discharge port end of the circulation pipe (4) is also provided with a discharge port for connecting the circulation pipe (4) and the sampling chamber (10).

5. A quantitative sampling device for powdery and granular materials according to claim 4, characterized in that: A first bevel gear (7) is connected to the outer wall below the auger (6), the first bevel gear (7) is meshed with a vertically arranged second bevel gear (9), the second bevel gear (9) is connected to a first motor (8) located outside the circulation pipe (4), and the first bevel gear (7) and the second bevel gear (9) are arranged in a protective shell (19).

6. A quantitative sampling device for powdery and granular materials according to claim 4, characterized in that: A silo scale (3) is provided on the side wall of the silo (1), a weighing silo scale (14) is provided on the weighing silo (13), the weighing silo (13) is a transparent box structure, and a transparent plate (2) is provided at the position where the silo scale (3) is provided on the silo (1).

7. A quantitative sampling device for powdery and granular materials according to claim 1, characterized in that: Two symmetrically arranged stirring rods (16) are provided in the silo (1), and a plurality of material crushing rods (161) are evenly distributed on each stirring rod (16), and crushing balls (162) are provided at the ends of the material crushing rods (161).

8. A quantitative sampling device for powdery and granular materials according to claim 7, characterized in that: The crushing balls (162) arranged on the two stirring rods (16) are staggered.

9. A quantitative sampling device for powdery and granular materials according to claim 7, characterized in that: The same end of the two stirring rods (16) is arranged to pass through the material bin (1), and a driving gear (17) is provided at one end of each stirring rod (16) passing through the material bin (1). The two driving gears (17) are meshed and connected, and one of the driving gears (17) is driven to rotate by the second motor (15).

10. A quantitative sampling device for powdery and granular materials according to claim 1, characterized in that: The discharge mechanism comprises a discharge pipe (18), and the discharge pipe (18) is arranged on the bottom side wall of the silo (1).

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