Automatic sampling device for dry material based on belt transmission

Abstract

The utility model discloses a kind of dry material automatic sampling devices based on belt transmission, more specifically to material sampling technical field, the top of fixed shell is provided with production line blanking interface, the inside of fixed shell is located below production line blanking interface and is provided with upper transmission assembly, the lower side of upper transmission assembly is provided with lower transmission assembly, lower transmission assembly extends to the outside of fixed shell, the side end of fixed shell is provided with the horizontal drive mechanism of driving upper transmission assembly horizontal activity, the inner wall of fixed shell is fixedly connected with second support frame below lower transmission assembly.The utility model can complete sampling under the condition that not stopping lower transmission assembly operation or only temporarily stopping upper layer material flow by setting the sampling mechanism of the gap of horizontal movement upper transmission assembly, improves production efficiency and sampling representation, and the randomness caused by manual sampling is reduced in automatic sampling process, and the problem that real production condition cannot be reflected.

Description

Technical Field

[0001] This utility model relates to the field of material sampling technology, and more specifically, to an automatic sampling device for dry materials based on belt conveyor. Background Technology

[0002] In many industries involving the continuous production of dry bulk materials (such as granules, powders, tablets, and plastic particles), such as chemical, food, pharmaceutical, building materials, and mining, regular or irregular sampling and analysis of materials is a key step in ensuring product quality and controlling production processes.

[0003] For example, in the production process of drying certain materials, it is necessary to control the moisture content of the dried material at the outlet. When online methods are not effective, manual sampling is required. Operators use tools such as sampling shovels and sampling tubes to directly cut materials on the conveyor belt or at the material drop point during production line operation or short shutdowns. This method is inefficient and poses a significant safety hazard when close to running equipment. In addition, the timing, location, and quantity of sampling are all related to the operator's own sampling operation, and the representativeness of the sample is easily affected by human factors, making it difficult to truly reflect the production situation. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides an automatic sampling device for dry materials based on belt conveyor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic sampling device for dry materials based on belt conveyor, comprising a production line feeding interface on the top of a fixed shell, an upper transmission component located below the production line feeding interface inside the fixed shell, a lower transmission component located below the upper transmission component, the lower transmission component extending to the outside of the fixed shell, a transverse drive mechanism for driving the upper transmission component to move horizontally located on one side of the fixed shell, a second support frame fixedly connected to the inner wall of the fixed shell below the lower transmission component, a buffer guide component fixedly connected to the top of the second support frame near the lower end of the lower transmission component, an inclined plate fixedly connected to the inner wall of the fixed shell on one side of the buffer guide component, a collection box located below the end of the inclined plate, a door panel connected to the front end of the fixed shell outside the buffer guide component, the inclined plate and the collection box, and a control switch located above the door panel on the front outer wall of the fixed shell.

[0006] As a further improvement to the technical solution of this utility model, the upper transmission assembly includes an upper transmission platform, with transmission rollers provided at both ends of the upper transmission platform, and an upper transmission belt connecting the two transmission rollers externally. A second drive motor for driving the transmission rollers therein is installed on the outer wall of one end of the upper transmission platform.

[0007] As a further improvement to the technical solution of this utility model, the lower transmission assembly includes a lower transmission platform, with transmission rollers provided at both ends of the lower transmission platform. A lower transmission belt is connected between the two transmission rollers. A first drive motor for driving one of the transmission rollers to rotate is installed on the outer wall of one end of the upper transmission platform. The bottom of the lower transmission platform is fixedly connected to a support base on the outside of the fixed shell. Limiting plates are provided on both sides of the top of the lower transmission platform near the lower sides of the production line unloading interface.

[0008] As a further improvement to the technical solution of this utility model, the transverse driving mechanism includes a storage shell fixedly connected to the outside of the fixed shell. A telescopic plate is connected to the inner side of the end of the storage shell in the horizontal direction. One end of the telescopic plate extends into the interior of the fixed shell and is fixedly connected to the bottom of the upper transmission assembly. The bottom of the telescopic plate is evenly provided with teeth. A protective shell is provided on the outer wall of the fixed shell at a position below the end of the storage shell. A toothed roller that meshes with the teeth is installed inside the protective shell. A servo motor that drives the toothed roller to rotate is installed on the outer wall of the fixed shell. A first support frame is fixedly connected between the bottom of the storage shell and the outer wall of the fixed shell.

[0009] As a further improvement to the technical solution of this utility model, the telescopic plate is fixed to the bottom of the upper transmission assembly by screws or welding, the servo motor is fixedly connected to the outer wall of the fixed shell by screws, and the inside of the storage shell is provided with a storage groove for the lateral telescopic movement of the telescopic plate.

[0010] As a further improvement to the technical solution of this utility model, the buffer guide assembly includes a fixed seat fixedly connected to the top of the second support frame. A lifting plate is connected to the inner side of the top of the fixed seat. A bracket is fixedly connected to the top of the lifting plate. An inclined guide plate is fixedly connected to the top of the bracket. A movable plate is fixedly connected to the bottom of the lifting plate inside the fixed seat. A movable cavity is provided in the fixed seat along the vertical direction corresponding to the outside of the movable plate. A spring is connected between the bottom of the movable plate and the inner wall of the movable cavity.

[0011] As a further improvement to the technical solution of this utility model, the bottom of the fixed base and the top of the second support frame are fixedly connected by bolts, and the top of the bracket is welded and fixed to the bottom of the guide plate.

[0012] The beneficial effects of this utility model are: 1. By setting up a sampling mechanism for creating gaps in the upper transmission component with lateral movement, sampling can be completed without stopping the lower transmission component or only briefly pausing the upper material flow, improving production efficiency and sample representativeness. The sampling action is controlled by a servo motor to move the upper transmission component laterally, enabling on-demand, timed, or quantitative sampling. The operation is convenient and highly controllable. The horizontal movement of the belt drive platform is used to create the sampling drop port. Compared with complex valves or rotating mechanisms, the structural design is relatively simple, the operation is reliable, and the maintenance cost is low. The sample is taken from the middle section of the material flow that is being transmitted, which can more realistically reflect the overall state of the material being transmitted. The automated sampling process reduces the randomness caused by manual sampling and the problem that it cannot reflect the real production situation. 2. The buffer and flow guiding components utilize the elasticity of springs to absorb the impact energy of falling materials, effectively preventing fragile, dusty, or high-particle-size dry material samples from breaking, splashing, or escaping dust during collection, thus greatly ensuring the physical integrity and representativeness of the samples. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention in the sampling state.

[0014] Figure 2 This is a cross-sectional view of the present invention in its normal transmission state.

[0015] Figure 3 This utility model Figure 1 Enlarged view of section A.

[0016] Figure 4 This is a schematic diagram of the buffer flow guiding component in this utility model.

[0017] Figure 5 This is a cross-sectional view of the buffer flow guiding component in this utility model.

[0018] Figure 6 This is the front view of this utility model.

[0019] The attached diagram is labeled as follows: 1. Fixed shell; 2. Production line unloading interface; 3. Lower transmission platform; 4. Lower transmission belt; 5. First drive motor; 6. Limiting plate; 7. Upper transmission platform; 8. Upper transmission belt; 9. Second drive motor; 10. Telescopic plate; 11. Toothed pattern; 12. Storage shell; 13. Protective shell; 14. Toothed roller; 15. Servo motor; 16. First support frame; 17. Control switch; 18. Door panel; 19. Buffer and guide assembly; 20. Second support frame; 21. Inclined plate; 22. Collection box; 191. Fixed seat; 192. Lifting plate; 193. Bracket; 194. Guide plate; 195. Movable plate; 196. Movable cavity; 197. Spring. Detailed Implementation

[0020] 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.

[0021] As attached Figures 1-6 The illustrated automatic sampling device for dry materials based on belt conveyor includes a fixed housing 1 with a production line feeding interface 2 on its top. An upper transmission component is located inside the fixed housing 1 below the production line feeding interface 2, and a lower transmission component is located below the upper transmission component. The lower transmission component extends to the outside of the fixed housing 1. A transverse drive mechanism for driving the upper transmission component to move horizontally is located on one side of the fixed housing 1. A second support frame 20 is fixedly connected to the inner wall of the fixed housing 1 below the lower transmission component. A buffer guide component 19 is fixedly connected to the top of the second support frame 20 near the lower end of the lower transmission component. An inclined plate 21 is fixedly connected to the inner wall of the fixed housing 1 on one side of the buffer guide component 19. A collection box 22 is located below the end of the inclined plate 21. A door panel 18 is connected to the front end of the fixed housing 1 outside the buffer guide component 19, the inclined plate 21, and the collection box 22. A control switch 17 is located on the front outer wall of the fixed housing 1 above the door panel 18.

[0022] As attached Figures 1-3 As shown, the upper transmission assembly includes an upper transmission platform 7, with transmission rollers at both ends of the upper transmission platform 7. An upper transmission belt 8 is connected between the two transmission rollers. A second drive motor 9 is installed on the outer wall of one end of the upper transmission platform 7 to drive the transmission rollers therein, which facilitates the transmission of materials during use.

[0023] As attached Figures 1-2 As shown, the lower transmission assembly includes a lower transmission platform 3, with transmission rollers at both ends of the lower transmission platform 3. A lower transmission belt 4 is connected between the two transmission rollers. A first drive motor 5 that drives one of the transmission rollers is installed on the outer wall of one end of the upper transmission platform 7. The bottom of the lower transmission platform 3 is fixedly connected to a support base on the outside of the fixed shell 1. Limiting plates 6 are provided on both sides of the top of the lower transmission platform 3 near the lower sides of the production line material drop interface 2 to facilitate further transmission of materials to the next process.

[0024] As attached Figures 1-3 and attached Figure 6As shown, the lateral drive mechanism includes a storage shell 12 fixedly connected to the outside of the fixed shell 1. A telescopic plate 10 is connected horizontally to the inner side of the end of the storage shell 12. One end of the telescopic plate 10 extends into the interior of the fixed shell 1 and is fixedly connected to the bottom of the upper transmission assembly. The bottom of the telescopic plate 10 is evenly provided with teeth 11. A protective shell 13 is provided on the outer wall of the fixed shell 1 below the end of the storage shell 12. A toothed roller 14 that meshes with the teeth 11 is installed inside the protective shell 13. A servo motor 15 that drives the toothed roller 14 to rotate is installed on the outer wall of the fixed shell 1. A first support frame 16 is fixedly connected between the bottom of the storage shell 12 and the outer wall of the fixed shell 1. The shrink plate 10 is fixed to the bottom of the upper transmission assembly by screws or welding, and the servo motor 15 is fixed to the outer wall of the fixed shell 1 by screws. The storage shell 12 is provided with a storage groove for the lateral extension and retraction of the shrink plate 10. The lateral drive mechanism facilitates the control of the upper transmission assembly to move horizontally during use. When sampling is required, the second drive motor 9 is stopped first, and then the upper transmission assembly is moved to the leftmost position to leave a gap between the upper transmission assembly and the lower transmission assembly. At this time, the second drive motor 9 is started again, and the material on the upper transmission assembly falls into the gap between the upper transmission assembly and the lower transmission assembly, achieving the effect of automatic sampling.

[0025] As attached Figures 1-2 and attached Figures 4-5 As shown, the buffer guide assembly 19 includes a fixed base 191 fixedly connected to the top of the second support frame 20. A lifting plate 192 is connected to the inner side of the top of the fixed base 191. A bracket 193 is fixedly connected to the top of the lifting plate 192. An inclined guide plate 194 is fixedly connected to the top of the bracket 193. A movable plate 195 is fixedly connected to the bottom of the lifting plate 192 inside the fixed base 191. A movable cavity 196 is provided vertically inside the fixed base 191 corresponding to the outside of the movable plate 195. A spring 197 is connected between the bottom of the movable plate 195 and the inner wall of the movable cavity 196. The bottom of the fixed base 191 is fixedly connected to the top of the second support frame 20 by bolts. The top of the bracket 193 is welded to the bottom of the guide plate 194. The buffer guide assembly 19 is designed to buffer and guide materials falling downwards.

[0026] Working principle: This utility model designs an automatic sampling device for dry materials based on belt conveyor. The specific structure is shown in the attached instruction manual. Figures 1-6 As shown, in use, dry materials fall into the fixed housing 1 through the material feeding interface 2 of the production line. The materials first fall onto the upper transmission assembly, and the upper transmission belt 8 is driven by the second drive motor 9 to transport the materials horizontally. In normal transmission mode, the upper transmission assembly is in its "normal" position, such as... Figure 2As shown on the right side, the end of the upper transmission assembly covers the beginning of the lower transmission assembly below. The material falls directly and continuously from the end of the upper transmission belt 8 onto the lower transmission belt 4. The lower transmission belt 4 is driven by the first drive motor 5, which continues to transport the material out of the fixed shell 1 and to the next process. The limiting plates 6 on both sides of the lower transmission assembly prevent the material from scattering during the transfer. At this time, the material flow is continuous and no sampling occurs. When sampling is required, the operator issues a sampling command via control switch 17 or configures a time relay for timing operation. First, the second drive motor 9 stops running, causing the upper transmission belt 8 to stop rotating. Then, the servo motor 15 of the transverse drive mechanism is started, driving the toothed roller 14 to rotate. The toothed roller 14 engages with the teeth 11 fixed to the bottom of the telescopic plate 10. The rotation of the toothed roller 14 causes the telescopic plate 10 to move horizontally and gradually retract into the storage shell 12. Since the telescopic plate 10 is fixedly connected to the bottom of the upper transmission assembly, the entire upper transmission assembly moves horizontally to the left. This movement continues until... When the upper transmission component reaches the far left and reaches the sampling position, a clear vertical gap and horizontal misalignment are formed between the end of the upper transmission component and the beginning of the lower transmission component. The second drive motor 9 is started again to drive the upper transmission belt 8 to rotate again. The material that is stopped on the upper transmission belt 8 is driven by the belt to continue to be conveyed forward. Since the end of the upper transmission component has moved away from the lower transmission component, the material no longer falls into the lower transmission belt 4 when it reaches the end of the upper transmission belt 8. Instead, it falls directly into the gap between the upper and lower transmission components. This part of the material that falls into the gap is the sample taken. The falling sample first lands on the buffer guide assembly 19 located directly below the gap. The sample impacts the guide plate 194, and the impact force is transmitted through the bracket 193, the lifting plate 192, and the movable plate 195. The compression of the spring 197 absorbs the impact energy and plays a buffering role, preventing the sample from splashing or breaking. The guide plate 194 itself is designed to be inclined. After buffering, the sample is guided by gravity to the direction of the inclined plate 21. That is, the sample that slides from the buffer guide assembly 19 lands on the inclined plate 21. The inclined plate 21 further guides the sample to slide into the collection box 22 below. The collection box 22 is used to store and retrieve the collected sample. After sampling is completed, the transverse drive mechanism 15 is started, driving the toothed roller 14 to rotate in the opposite direction, which drives the telescopic plate 10 and the upper transmission assembly to move horizontally back to their original normal position, realigns the lower transmission assembly, and the material falls normally onto the lower transmission belt 4 again, and the main material flow resumes continuous transmission.

[0027] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic sampling device for dry materials based on belt conveyor, comprising a production line discharge interface (2) provided on the top of a fixed shell (1), characterized in that: An upper transmission assembly is provided inside the fixed shell (1) below the production line unloading interface (2). A lower transmission assembly is provided below the upper transmission assembly. The lower transmission assembly extends to the outside of the fixed shell (1). A transverse drive mechanism for driving the upper transmission assembly to move horizontally is provided on one side of the fixed shell (1). A second support frame (20) is fixedly connected to the inner wall of the fixed shell (1) below the lower transmission assembly. A buffer guide assembly (19) is fixedly connected to the top of the second support frame (20) near the lower end of the lower transmission assembly. An inclined plate (21) is fixedly connected to the inner wall of the fixed shell (1) on one side of the buffer guide assembly (19). A collection box (22) is provided below the end of the inclined plate (21). A door panel (18) is connected to the front end of the fixed shell (1) outside the buffer guide assembly (19), the inclined plate (21) and the collection box (22). A control switch (17) is provided on the front outer wall of the fixed shell (1) above the door panel (18).

2. The automatic sampling device for dry materials based on belt conveyor according to claim 1, characterized in that: The upper transmission assembly includes an upper transmission platform (7), with transmission rollers at both ends of the upper transmission platform (7), and an upper transmission belt (8) connecting the two transmission rollers externally. A second drive motor (9) is installed on the outer wall of one end of the upper transmission platform (7) to drive the transmission rollers therein to rotate.

3. The automatic sampling device for dry materials based on belt conveyor according to claim 2, characterized in that: The lower transmission assembly includes a lower transmission platform (3), with transmission rollers at both ends of the lower transmission platform (3). A lower transmission belt (4) is connected between the two transmission rollers. A first drive motor (5) is installed on the outer wall of one end of the upper transmission platform (7) to drive one of the transmission rollers to rotate. The bottom of the lower transmission platform (3) is fixedly connected to a support base on the outside of the fixed shell (1). Limiting plates (6) are provided on both sides of the top of the lower transmission platform (3) near the lower sides of the production line unloading interface (2).

4. The automatic sampling device for dry materials based on belt conveyor according to claim 1, characterized in that: The transverse drive mechanism includes a storage shell (12) fixedly connected to the outside of the fixed shell (1). A telescopic plate (10) is connected to the inner side of the end of the storage shell (12) in the horizontal direction. One end of the telescopic plate (10) extends into the interior of the fixed shell (1) and is fixedly connected to the bottom of the upper transmission assembly. The bottom of the telescopic plate (10) is evenly provided with teeth (11). A protective shell (13) is provided on the outer wall of the fixed shell (1) below the end of the storage shell (12). A toothed roller (14) that meshes with the teeth (11) is installed inside the protective shell (13). A servo motor (15) that drives the toothed roller (14) to rotate is installed on the outer wall of the fixed shell (1). A first support frame (16) is fixedly connected between the bottom of the storage shell (12) and the outer wall of the fixed shell (1).

5. The automatic sampling device for dry materials based on belt conveyor according to claim 4, characterized in that: The telescopic plate (10) is fixed to the bottom of the upper transmission assembly by screws or welding, the servo motor (15) is fixed to the outer wall of the fixed shell (1) by screws, and the storage shell (12) is provided with a storage groove for the lateral telescopic movement of the telescopic plate (10).

6. The automatic sampling device for dry materials based on belt conveyor according to claim 1, characterized in that: The buffer guide assembly (19) includes a fixed seat (191) fixedly connected to the top of the second support frame (20). A lifting plate (192) is connected to the inner side of the top of the fixed seat (191). A bracket (193) is fixedly connected to the top of the lifting plate (192). An inclined guide plate (194) is fixedly connected to the top of the bracket (193). A movable plate (195) is fixedly connected to the bottom of the lifting plate (192) inside the fixed seat (191). A movable cavity (196) is provided in the vertical direction inside the fixed seat (191) corresponding to the outside of the movable plate (195). A spring (197) is connected between the bottom of the movable plate (195) and the inner wall of the movable cavity (196).

7. The automatic sampling device for dry materials based on belt conveyor according to claim 6, characterized in that: The bottom of the fixed seat (191) is fixedly connected to the top of the second support frame (20) by bolts, and the top of the bracket (193) is welded to the bottom of the guide plate (194).

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