Particle material conveying mechanism

Abstract

The utility model provides a particle material conveying mechanism. The particle material conveying mechanism comprises a stock bin, a conveying belt assembly and a recycling piece. The conveyor belt assembly comprises a driving unit, a driving wheel, a driven wheel and a conveyor belt; the driving unit is connected with the driving wheel and is used for driving the driving wheel to rotate; the driven wheel and the driving wheel are spaced from each other; the conveying belt surrounds the position between the driving wheel and the driven wheel, is located below a discharging port of the stock bin and is used for receiving particle materials sent out from the discharging port of the stock bin. A recovery cavity with an open top is formed in the recovery part, the recovery cavity is used for recovering redundant particle materials falling from the conveying belt, the recovery cavity is located below a discharging port of the stock bin, and the conveying belt penetrates through the upper portion of the recovery cavity. Compared with the prior art, the particle material conveying mechanism can be installed and used in a narrow area, and redundant particle materials can be recycled.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette production equipment, and in particular to a particulate material conveying mechanism. Background Technology

[0002] To meet diverse consumer needs, existing cigarette products typically incorporate flavored granules (commonly known as "flavor capsules") during the cigarette manufacturing process. These capsules enhance the aroma during inhalation, thereby improving the consumer's smoking experience.

[0003] In existing technologies, conveying equipment is commonly used to transport granular materials. For example, the equipment disclosed in publications CN115868668A and CN113679098A are both conveying devices for granular materials. However, existing conveying equipment for granular materials typically has a disc-shaped structure, which limits its installation in relatively narrow installation areas. Using a belt conveyor structure to transport granular materials can effectively solve the problem of installation in relatively narrow areas.

[0004] By using a belt conveyor to transport granular materials, and if excess granular material can be recycled during the feeding process, costs can be further reduced.

[0005] Therefore, how to provide a new particulate material conveying mechanism that can be installed and used in a relatively narrow installation area and can recycle particulate materials is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a granular material conveying mechanism that uses a belt structure to convey granular materials. It can be installed and used in relatively narrow installation areas and is also equipped with a recycling structure. This recycling structure can recover excess material falling from the hopper, thereby enabling the reuse of excess material and reducing material costs.

[0007] A particulate material conveying mechanism includes a hopper, a conveyor belt assembly, and a recycling component;

[0008] The conveyor belt assembly includes a drive unit, a drive wheel, a driven wheel, and a conveyor belt;

[0009] The drive unit is connected to the drive wheel and is used to drive the drive wheel to rotate;

[0010] The driven wheel and the driving wheel are spaced apart from each other;

[0011] The conveyor belt is wrapped between the drive wheel and the driven wheel and is located below the discharge port of the hopper to receive the granular material sent from the discharge port of the hopper.

[0012] The recycling unit has an open-top recycling chamber for recycling excess particulate material that falls from the conveyor belt. The recycling chamber is located below the discharge port of the hopper, and the conveyor belt passes over the recycling chamber.

[0013] Preferably, the outer surface of the conveyor belt is provided with receiving holes for receiving particulate materials;

[0014] The particulate material conveying mechanism also includes a blocking guide block located behind the discharge port of the hopper to block excess particulate material on the conveyor belt that is outside the receiving hole, so that the excess particulate material falls into the recycling chamber.

[0015] Preferably, the blocking guide block is connected to the discharge port of the hopper, and the recycling component is connected to the bottom of the blocking guide block.

[0016] Preferably, the blocking guide block includes a top wall of the guide block, a side wall of the guide block, and a guide protrusion;

[0017] The guide block sidewalls are provided with two blocks, which are connected to opposite sides of the top wall of the guide block; along the bandwidth of the conveyor belt, the two guide block sidewalls are located on opposite sides of the conveyor belt; a guide cavity is formed on the inner surface of the guide block sidewall, which communicates with the recovery cavity, and the sidewall of the guide cavity is spaced apart from the conveyor belt.

[0018] The guide protrusion is connected to the inner surface of the top wall of the guide block and is located above the conveyor belt to block excess particulate material on the conveyor belt that is outside the receiving hole; two guide protrusions are provided, and the two guide protrusions are spaced apart to form a clearance groove, which is provided corresponding to the receiving hole.

[0019] Preferably, along the conveying direction of the conveyor belt, the outer surface of the guide protrusion extends obliquely away from the center of the conveyor belt.

[0020] Preferably, it also includes mounting blocks and brushes;

[0021] The mounting block is connected to the discharge port of the hopper;

[0022] The brush is located at the bottom of the mounting block and above the conveyor belt to block material on the conveyor belt above the receiving hole.

[0023] Preferably, the brush extends into the blocking guide block and is located in front of the guide protrusion of the blocking guide block.

[0024] Preferably, the bottom of the recycling component has a discharge hole, which communicates with the recycling chamber;

[0025] The particulate material conveying mechanism also includes a connector for communicating with an external recycling device. The connector is connected to the recycling component and communicates with the discharge port.

[0026] Preferably, at least one of the sidewalls surrounding the recycling chamber is an inclined sidewall, and the inclined sidewall is inclined toward the discharge hole.

[0027] Preferably, the width of the opening at the top of the recovery chamber is greater than the bandwidth of the conveyor belt.

[0028] Compared with existing technologies, the granular material conveying mechanism provided by this utility model includes a hopper, a conveyor belt assembly, and a recovery component. The conveyor belt assembly includes a drive unit, a drive wheel, a driven wheel, and a conveyor belt. The drive unit is connected to the drive wheel to drive its rotation. The driven wheel is spaced apart from the drive wheel. The conveyor belt wraps around the drive wheel and the driven wheel and is located below the outlet of the hopper to receive granular material from the outlet. The recovery component has an open-top recovery chamber for recovering excess granular material falling from the conveyor belt. The recovery chamber is located below the outlet of the hopper, and the conveyor belt passes over the recovery chamber. This granular material conveying mechanism uses a belt structure to convey granular material. The drive unit drives the drive wheel to rotate, which in turn drives the conveyor belt to move, thereby receiving and conveying the granules falling from the hopper. The overall structure is simple, requires less space, and can be installed and used in relatively narrow installation areas. Furthermore, the recycling unit is also provided, which can recover excess granular material falling from the hopper, allowing this granular material to be reused, thereby reducing material costs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of some components in a particulate material conveying mechanism according to one embodiment;

[0031] Figure 2 A front view of some components in a particulate material conveying mechanism according to one embodiment;

[0032] Figure 3 for Figure 1 A magnified view of a portion of region A shown below;

[0033] Figure 4 For along Figure 2 A schematic diagram of the cross-sectional structure of the BB line shown.

[0034] Figure 5 for Figure 4 A magnified view of region C shown below;

[0035] Figure 6 for Figure 1 A three-dimensional structural diagram of the recyclable component shown;

[0036] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the blocking guide block shown;

[0037] Figure 8 This is a three-dimensional structural diagram of some components in a conveyor belt assembly provided in one embodiment. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] It should be noted that when a component is referred to as being "fixed to", "mounted to", or "set on" another component, it can be directly on or indirectly set on the other component; when a component is "connected" to another component, or a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0040] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0042] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0043] This utility model provides a granular material conveying mechanism, comprising a hopper, a conveyor belt assembly, and a recovery component. The conveyor belt assembly includes a drive unit, a drive wheel, a driven wheel, and a conveyor belt. The drive unit is connected to the drive wheel and drives it to rotate. The driven wheel is spaced apart from the drive wheel. The conveyor belt surrounds the drive wheel and the driven wheel and is located below the outlet of the hopper to receive granular material from the outlet. The recovery component has an open-top recovery chamber for recovering excess granular material falling from the conveyor belt. The recovery chamber is located below the outlet of the hopper, and the conveyor belt passes over the recovery chamber. This granular material conveying mechanism uses a belt structure to transport granular material. The drive unit drives the drive wheel to rotate, which in turn drives the conveyor belt to transport and receive granules falling from the hopper. The overall structure is simple, requires minimal space, and can be installed and used in relatively narrow installation areas. Furthermore, the recycling unit is also provided, which can recover excess granular material falling from the hopper, allowing this granular material to be reused, thereby reducing material costs.

[0044] Please refer to Figures 1 to 8 This embodiment provides a particulate material conveying mechanism 100, which offers a novel particulate material conveying structure better suited for installation in relatively narrow areas and allows for the recycling of excess particulate material. Specifically, the particulate material is tobacco particulate material.

[0045] The granular material conveying mechanism 100 includes a hopper 10, a conveyor belt assembly 20, and a recovery component 30. The hopper 10 is used to contain granular materials, the conveyor belt assembly 20 is used to gradually convey the granular materials in the hopper 10 outwards, and the recovery component 30 is used to recover excess granular materials falling from the conveyor belt assembly 20.

[0046] The conveyor belt assembly 20 includes a drive unit, a drive wheel 21, a driven wheel 22, and a conveyor belt 23. The drive unit is connected to the drive wheel and drives the drive wheel 21 to rotate. Specifically, the drive unit can be a motor. The driven wheel 22 is spaced apart from the drive wheel 21. The conveyor belt 23 is wrapped around the drive wheel 21 and the driven wheel 22. The conveyor belt 23 is located below the discharge port 11 of the hopper 10 to receive the granular material discharged from the discharge port 11. When conveying the granular material, the drive unit drives the drive wheel 21 to rotate, thereby the drive wheel 21 drives the conveyor belt 23 to run, so that the conveyor belt 23 conveys the received granular material to the rear in a linear movement.

[0047] The recycling unit 30 has an open-top recycling chamber 31 for recycling excess particulate material falling from the conveyor belt 23. The recycling chamber 31 is located below the discharge port 11, and the conveyor belt 23 passes above the recycling chamber 31. It is understood that when particulate material in the hopper 10 falls from the discharge port 11 onto the conveyor belt 23, the falling particulate material may exceed the required material. The excess particulate material will fall off the conveyor belt 23 due to gravity and other factors. Since the recycling chamber 31 is located below the discharge port 11 and has an open top, the falling particulate material can fall into the recycling chamber 31 by gravity, thereby recycling the excess particulate material.

[0048] It should be noted that existing equipment for conveying granular materials typically uses a disc-shaped structure, and the conveying distance is related to the disc's diameter. To achieve long-distance conveying of granular materials, the overall structure needs to be designed as a disc with a longer diameter, which is inconvenient for installation and use. Furthermore, existing disc-shaped structures are limited in installation areas, presenting a limitation. Additionally, existing conveying equipment uses a rotating disc structure to connect and transport granular materials, requiring high installation precision. When installation errors occur, the components can easily crush the granular materials during the receiving and picking process, causing damage and resulting in unstable granular material conveying.

[0049] The conveying distance of the granular material conveying mechanism 100 provided in this embodiment is related to the distance between the driving wheel 21 and the driven wheel 22, as well as the length of the conveyor belt 23. Long-distance conveying of granular materials can be achieved simply by adjusting the distance between the two wheels and the length of the conveyor belt 23, making installation more convenient. Furthermore, the belt structure for conveying granular materials is simple in structure and small in size, allowing for installation in relatively narrow areas. The conveyor belt 23 effectively picks up and linearly conveys the granular materials, better preventing breakage and ensuring more stable material transport. The included recycling component 30 can collect excess granular material, allowing for reuse and reducing material costs.

[0050] Preferably, in one embodiment, the outer surface of the conveyor belt 23 is provided with a receiving hole 231 for receiving particulate material. Particulate material falling from the discharge port 11 can flow into the receiving hole 231 for reception. The particulate material conveying mechanism 100 also includes a blocking guide block 40, located behind the discharge port 11, to block material on the conveyor belt 23 that is outside the receiving hole 231, so that excess particulate material falls into the recovery chamber 31. The blocking guide block 40 is located behind the discharge port 11 with the conveying direction of the conveyor belt 23 as a reference direction. When the conveyor belt 23 is running, it first passes the discharge port 11 and then passes the blocking guide block 40. In this embodiment, the receiving hole 231 and the blocking guide block 40 enable the conveyor belt assembly 20 to quantitatively convey the falling particulate material.

[0051] It is understandable that when particulate material falls from the discharge port 11 onto the conveyor belt 23, some may fall into the receiving hole 231, while others may fall onto the outer surface of the conveyor belt 23 outside the receiving hole 231. This results in variations in the amount of particulate material conveyed by the conveyor belt 23 each time, making it impossible to achieve quantitative conveying of particulate material and affecting the stability of quantitative conveying. However, with the blocking guide block 40, after the conveyor belt 23 receives particulate material from the discharge port 11, the blocking guide block 40 can block the particulate material located outside the receiving hole 231, thereby ensuring that the particulate material conveyed to the rear is only located in the receiving hole 231, thus achieving quantitative conveying of particulate material and better ensuring the stability of quantitative conveying of particulate material. The size of the receiving hole 231 can be selected according to the amount of material to be conveyed each time. For example, the size of the receiving hole 231 can be adapted to one particulate material, so that only one particulate material can be contained in each receiving hole 231 at a time; or, the size of the receiving hole 231 can be adapted to multiple particulate materials, so that multiple particulate materials can be contained in each receiving hole 231 at the same time. The size of the receiving hole 231 can be selected according to actual needs.

[0052] Preferably, in one embodiment, the blocking guide block 40 is connected to the discharge port 11, and the recycling component 30 is connected to the bottom of the blocking guide block 40. This eliminates the need for other installation structures, making the overall structure more compact and simple, and allowing excess particulate material to flow more smoothly into the recycling chamber 31, reducing the recycling distance and better preventing breakage of particulate material during the recycling process.

[0053] Preferably, in one embodiment, the blocking guide block 40 includes a guide block top wall 41, guide block side walls 42, and guide protrusions 43. Two guide block side walls 42 are provided, connected to opposite sides of the guide block top wall 41. Along the bandwidth direction of the conveyor belt 23, the two guide block side walls 42 are located on opposite sides of the conveyor belt 23. A guide cavity 422 is formed on the inner surface 421 of the guide block side wall 42 (the inner surface 421 refers to the surface of the guide block side wall 42 near the conveyor belt 23), the guide cavity 422 communicating with the recovery cavity 31, and the side wall 4221 of the guide cavity 422 being spaced apart from the conveyor belt 23. In other words, the sidewall 4221 of the guide cavity 422 is spaced a certain distance from the side of the conveyor belt 23, rather than being attached to the side of the conveyor belt 23. This creates a gap of a certain width through the guide cavity 422, allowing excess particulate material to flow smoothly into the recycling cavity 31 through the guide cavity 422. This better prevents the blocking guide block 40 from squeezing the excess particulate material during the recycling process, and better avoids damage to the particulate material.

[0054] The guide protrusion 43 is connected to the inner surface 411 of the top wall 41 of the guide block and is located above the conveyor belt 23 to block excess particulate material on the conveyor belt 23 that is outside the receiving hole 231. In other words, in the blocking guide block 40, excess particulate material is blocked and guided specifically by the guide protrusion 43. Two guide protrusions 43 are provided, and the two guide protrusions 43 are spaced apart to form a clearance groove 44, which corresponds to the receiving hole 231. When the conveyor belt 23 is running, the particulate material located in the receiving hole 231 on the conveyor belt 23 can flow smoothly through the clearance groove 44 to the blocking guide block 40, while particulate material at other positions on the outer surface of the conveyor belt 23 will be blocked by the guide protrusions 43 located on both sides of the clearance groove 44, thereby ensuring that the backward-conveyed particulate material is only located in the receiving hole 231, achieving quantitative material conveying.

[0055] Preferably, in one embodiment, along the conveying direction of the conveyor belt 23, the outer surface 431 of the guide protrusion 43 extends obliquely away from the center of the conveyor belt 23. That is, the outer surface 431 of the guide protrusion 43 is not parallel to the conveying direction of the conveyor belt 23, but is inclined at a certain angle relative to the conveying direction of the conveyor belt 23, and the inclination direction gradually moves away from the center of the conveyor belt 23 (with the conveying direction of the conveyor belt 23 as a reference). When the conveyor belt 23 is running, particulate material located outside the receiving hole 231 on the conveyor belt 23 will be blocked and guided by the guide protrusion 43. Then, guided by the conveyor belt 23 and the outer surface 431 of the guide protrusion 43, the particulate material gradually approaches and flows into the guide cavity 422, and finally the particulate material is guided into the recycling cavity 31. Specifically, the outer surfaces 431 of the two guide protrusions 43 generally present an "eight"-shaped structure.

[0056] Preferably, in one embodiment, the particulate material conveying mechanism 100 further includes a mounting block 50 and a brush 60. The mounting block 50 is connected to the discharge port 11. By directly connecting the mounting block 50 to the discharge port 11, other installation structures can be omitted, making the overall structure more compact and simpler. The brush 60 is disposed at the bottom of the mounting block 50 and above the conveyor belt 23 to block material located on the conveyor belt 23 above the receiving hole 231. It is understood that tobacco particulate material is very prone to breakage, and by using the brush 60 to block and scrape away the tobacco particulate material, breakage of the particulate material can be better avoided, thus better ensuring the reliability of the conveying.

[0057] Preferably, in one embodiment, the brush 60 extends into the blocking guide block 40 and is located in front of the guide protrusion 43. That is, when the conveyor belt 23 is running, the material first passes through the brush 60 and then through the guide protrusion 43.

[0058] Preferably, in one embodiment, the bottom of the recycling component 30 is provided with a discharge hole 32, which communicates with the recycling chamber 31. The particulate material conveying mechanism 100 further includes a connector 70 for connecting to an external recycling device. The connector 70 is connected to the recycling component 30 and communicates with the discharge hole 32. When particulate material flows into the recycling chamber 31, it can flow into the connector 70 through the discharge hole 32, and then into the external recycling device through the connector 70, thereby achieving recycling. Specifically, the external recycling device may have a negative pressure structure, which can suck the particulate material in the connector 70 through negative pressure, thereby preventing the particulate material from accumulating in the recycling component 30 or the connector 70.

[0059] Preferably, in one embodiment, at least one of the sidewalls 311 surrounding the recycling chamber 31 is an inclined sidewall 3111, and the inclined sidewall 3111 is inclined toward the discharge hole 32, so that the particulate material in the recycling chamber 31 can be guided to the discharge hole 32, and the particulate material is prevented from accumulating in the recycling chamber 31.

[0060] Preferably, in one embodiment, the width of the top opening of the recycling chamber 31 is not less than the bandwidth of the conveyor belt 23, thereby allowing for smoother reception of excess particulate material flowing out from both sides of the conveyor belt 23. When installing the recycling component 30, it can be aligned with the conveyor belt 23 so that the central axis of the recycling component 30 and the central axis of the conveyor belt 23 are on the same plane, thereby ensuring that all excess particulate material flowing out from both sides of the conveyor belt 23 can flow into the recycling chamber 31.

[0061] Preferably, in one embodiment, multiple sets of receiving holes 231 are arranged sequentially at intervals along the length of the conveyor belt 23, and the spacing between adjacent sets of receiving holes 231 is equal. By arranging multiple sets of receiving holes 231, particulate materials can be continuously and uninterruptedly conveyed, improving conveying efficiency.

[0062] Preferably, in one embodiment, each group of receiving holes 231 includes two receiving holes 231, and the two receiving holes 231 in each group are spaced apart from each other along the length of the conveyor belt 23. That is, in this embodiment, when the conveyor belt 23 transports particulate material, it can transport particulate material from two receiving holes 231 at a time, and the docking device at the rear can pick up the particulate material from two receiving holes 231 at a time. Specifically, in one embodiment, each receiving hole 231 is adapted to one particulate material. That is, the receiving hole 231 can only hold one particulate material at a time, and the conveyor belt 23 transports particulate material to the rear device in units of two particulate materials.

[0063] Preferably, in one embodiment, the receiving hole 231 is circular. That is, the receiving hole 231 has an overall circular structure, and the sidewalls of the receiving hole 231 have an arc-shaped structure, so as to better adapt to the particulate material and avoid squeezing the particulate material and causing damage.

[0064] Preferably, in one embodiment, the conveyor belt assembly 20 further includes a negative pressure generating unit, which communicates with the receiving hole 231 to provide negative pressure into the receiving hole 231. By providing negative pressure into the receiving hole 231 through the negative pressure generating unit, the particulate material can be stably adsorbed within the receiving hole 231 and move forward with the conveyor belt 23. Specifically, when setting up the conveyor belt assembly 20, grooves can be formed on the side plates on both sides of the conveyor belt 23. The grooves can communicate with the receiving hole 231, and the negative pressure generating unit can communicate with the grooves to provide negative pressure to the receiving hole 231. The grooves can be positioned only between the discharge port 11 and the discharge position of the conveyor belt 23. When the receiving hole 231 moves to the discharge position, the negative pressure is disconnected. This allows the conveyor belt 23 to transport particulate material more stably and also facilitates the receiving of particulate material by downstream equipment.

[0065] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A granular material conveying mechanism, characterized in that, Includes silos, conveyor belt assemblies, and recyclable parts; The conveyor belt assembly includes a drive unit, a drive wheel, a driven wheel, and a conveyor belt; The drive unit is connected to the drive wheel and is used to drive the drive wheel to rotate; The driven wheel and the driving wheel are spaced apart from each other; The conveyor belt is wrapped between the drive wheel and the driven wheel and is located below the discharge port of the hopper to receive the granular material sent from the discharge port of the hopper. The recycling unit has an open-top recycling chamber for recycling excess particulate material that falls from the conveyor belt. The recycling chamber is located below the discharge port of the hopper, and the conveyor belt passes over the recycling chamber.

2. The particulate material conveying mechanism according to claim 1, characterized in that, The outer surface of the conveyor belt is provided with receiving holes for accommodating particulate materials; The particulate material conveying mechanism also includes a blocking guide block located behind the discharge port of the hopper to block excess particulate material on the conveyor belt that is outside the receiving hole, so that the excess particulate material falls into the recycling chamber.

3. The particulate material conveying mechanism according to claim 2, characterized in that, The blocking guide block is connected to the discharge port of the hopper, and the recycling component is connected to the bottom of the blocking guide block.

4. The particulate material conveying mechanism according to claim 3, characterized in that, The blocking guide block includes a top wall of the guide block, a side wall of the guide block, and a guide protrusion; The guide block sidewalls are provided with two blocks, which are connected to opposite sides of the top wall of the guide block; along the bandwidth of the conveyor belt, the two guide block sidewalls are located on opposite sides of the conveyor belt; a guide cavity is formed on the inner surface of the guide block sidewall, which communicates with the recovery cavity, and the sidewall of the guide cavity is spaced apart from the conveyor belt. The guide protrusion is connected to the inner surface of the top wall of the guide block and is located above the conveyor belt to block excess particulate material on the conveyor belt that is outside the receiving hole; two guide protrusions are provided, and the two guide protrusions are spaced apart to form a clearance groove, which is provided corresponding to the receiving hole.

5. The particulate material conveying mechanism according to claim 4, characterized in that, Along the conveying direction of the conveyor belt, the outer surface of the guide protrusion extends obliquely away from the center of the conveyor belt.

6. The particulate material conveying mechanism according to claim 2, characterized in that, It also includes mounting blocks and brushes; The mounting block is connected to the discharge port of the hopper; The brush is located at the bottom of the mounting block and above the conveyor belt to block material on the conveyor belt above the receiving hole.

7. The particulate material conveying mechanism according to claim 6, characterized in that, The brush extends into the blocking guide block and is located in front of the guide protrusion of the blocking guide block.

8. The particulate material conveying mechanism according to claim 1, characterized in that, The bottom of the recycling component has a discharge hole, which is connected to the recycling chamber; The particulate material conveying mechanism also includes a connector for communicating with an external recycling device. The connector is connected to the recycling component and communicates with the discharge port.

9. The particulate material conveying mechanism according to claim 8, characterized in that, At least one of the sidewalls forming the recycling chamber is an inclined sidewall, and the inclined sidewall is inclined toward the discharge hole.

10. The particulate material conveying mechanism according to claim 1, characterized in that, The width of the opening at the top of the recovery chamber is greater than the bandwidth of the conveyor belt.

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