A material delivery system

Abstract

The utility model relates to material conveying equipment technical field discloses a kind of conveying systems, comprising: upper bin, lower bin, guide plate, conveying belt and vibration device;Upper bin is fixed in upper material outlet, lower bin is located below upper bin;Annular accommodating groove is provided at the top opening of lower bin, the lower end of upper bin is inserted into accommodating groove, and the gap between the lower end of upper bin and the bottom of accommodating groove is adjustable by adjustable soft connection between upper bin and lower bin;The first end of guide plate is arranged in the inner wall of upper bin, the second end of guide plate extends into lower bin, and conveying belt is located below the bottom opening of lower bin;Vibration device is used to control lower bin vibration when the material flow on conveying belt reduces or breaks flow.The utility model can control lower bin vibration, can effectively drive vibration to lower bin and use vibration to break arch actively, control gap size by upper and lower bin, and adapt to the anti-sticking needs of different material characteristics.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, specifically a material conveying system. Background Technology

[0002] In industrial production, many processes require material conveying systems for batching operations, equipped with batching silos. These silos are used to receive, store, and discharge the raw materials required by the formula, ensuring continuous production. In material conveying processes, silos are common material storage and diversion devices. However, when materials adhere to the silo walls, arch, or bridge, they can cause poor discharge, intermittent material shortages, and reduced production efficiency and continuity. This can even lead to equipment blockages, malfunctions, and product quality issues.

[0003] Traditional batching silos are typically composed of two integral welded sections: an upper vertical cube or cylinder for material storage and a lower truncated pyramid or cone for raw material unloading. The pressure of the material on the silo walls is concentrated in the cone section, especially at the junction of the cone and the vertical section (shoulder angle), where stress concentration is significant. The cone itself is also prone to material arching and wall adhesion, leading to poor unloading and blockages. Without specific anti-sticking and anti-bridging structures, material feeding requires frequent manual checks for normal feeding, interruptions, interventions, and vibration operation, which is time-consuming, labor-intensive, and disrupts production continuity. Therefore, there is an urgent need for a material conveying system that can address problems such as material sticking and wall adhesion, ensuring smooth material flow. Utility Model Content

[0004] The purpose of this utility model is to provide a material conveying system to solve the problem of material sticking to the wall in existing batching bins, which leads to poor material discharge.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A material conveying system, comprising: The feeding hopper is fixed to the upper material outlet. The feeding hopper is a vertical cube or cylinder with a hollow interior and openings at both the top and bottom. The unloading hopper is located below the loading hopper. The unloading hopper is hollow inside and has a top opening and a bottom opening. An annular receiving groove is provided at the top opening of the unloading hopper, with the opening of the receiving groove facing the loading hopper. The lower end of the loading hopper is inserted into the receiving groove, and the loading hopper and the unloading hopper are connected by an adjustable flexible connection so that the gap between the lower end of the loading hopper and the bottom of the receiving groove is adjustable. The guide plate has its first end located on the inner wall of the feeding hopper and close to the lower end of the feeding hopper. The second end of the guide plate extends into the lower hopper. The angle between the first end of the guide plate and the inner wall of the feeding hopper is 165°~175°. When feeding, the material flows along the guide plate into the lower hopper to prevent the material from entering the receiving tank along the hopper wall. A conveyor belt, located below the bottom opening of the hopper, is used to transport materials discharged from the hopper; A vibration device is included to control the vibration of the discharge bin when the material flow on the conveyor belt decreases or stops. The bin is designed as an upper and lower section connected by an adjustable flexible joint, forming a combined bin with an adjustable gap. By controlling the gap size, it adapts to the anti-sticking requirements of different material characteristics (such as humidity and viscosity). A guide plate extending downwards from the upper bin improves the pressure distribution on the bin walls, reduces stress concentration at the shoulder angle, and prevents material arching. By shielding the gap between the upper and lower bins, it prevents material from leaking out along the gap or clogging the receiving trough, thus affecting the vibration of the discharge bin. The vibration device only controls the vibration of the discharge bin when the material flow on the conveyor belt decreases or stops, ensuring the anti-sticking function while avoiding unnecessary vibration during material transport (such as reducing energy consumption and equipment wear).

[0006] Furthermore, the vibration device includes a vibrator and a control assembly. The vibrator is installed on the outer wall of the feeding hopper. The control assembly includes a bracket, a proximity switch, and a swing plate. The bracket is close to the conveyor belt, and the proximity switch is installed on the bracket and signal-connected to the vibrator for controlling its start and stop. The swing plate is hinged to the bracket, with its first end engaging with the proximity switch and its second end close to the conveyor belt. When material is being conveyed normally on the conveyor belt, the second end of the swing plate is propelled by the material, causing its first end to move away from the proximity switch, at which point the vibrator is off. When the material flow on the conveyor belt decreases or stops, the swing plate naturally falls, its first end approaching the proximity switch, at which point the vibrator is on. The vibrator is installed in the feeding hopper to provide vibration power to the hopper. The swing plate is hinged to the bracket, and, based on the material conditions on the conveyor belt, works with the inductive proximity switch to achieve automatic start and stop control of the vibrator.

[0007] Furthermore, the guide plate includes an inclined section and a vertical section connected together. The first end of the inclined section is connected to the inner wall of the feeding hopper, and the second end of the inclined section is connected to the vertical section. The vertical section is used to cover the receiving trough to prevent material from blocking the receiving trough or being discharged through the receiving trough. The angle between the inclined section and the inner wall of the feeding hopper is 165°~175°. This angle can weaken the shoulder angle and avoid the formation of material arching.

[0008] Furthermore, the inner diameter of the top opening of the feeding hopper is larger than the inner diameter of the bottom opening of the feeding hopper, so that the inner diameter of the feeding hopper gradually decreases from the top to the bottom, thereby forming a guide slope; the angle between the inner wall of the feeding hopper and the vertical direction is 145°~165°.

[0009] Furthermore, the depth of the receiving trough is 50~100mm. By setting the receiving trough, it is possible to prevent the lower hopper from separating from the upper hopper due to vibration when the gap between the upper and lower hoppers is too large, thus avoiding material spillage.

[0010] Furthermore, it also includes a steel structure base, on which two bearing seats are mounted, each bearing seat rotatably equipped with a pulley, and the conveyor belt is connected to the two pulleys. This arrangement improves the installation stability of the conveyor belt.

[0011] Furthermore, the support includes a first leg, a second leg, a crossbeam, and a support rod; both the first and second legs are mounted on a steel structure base and are symmetrically arranged along the width direction of the conveyor belt. The two ends of the crossbeam are connected to the first and second legs respectively, so that the crossbeam spans the belt. The proximity switch is mounted on the crossbeam. The support rod is connected to the crossbeam and located below the proximity opening. The swing plate is hinged to the support rod. This configuration improves the stability of the support.

[0012] Furthermore, the control component also includes a protective housing disposed on the outer periphery of the proximity switch. By providing a protective housing, external dust can be blocked, ensuring the performance of the proximity switch and extending its service life.

[0013] Furthermore, the number of vibrators is two, and both vibrators are installed on the outer wall of the feeding hopper, with the vibration axis of the vibrator forming an angle of 10° to 60° with the tangential surface of the cone wall of the feeding hopper.

[0014] Furthermore, the adjustable flexible connector is a turnbuckle, and an mounting plate is provided on the outer wall of the feeding hopper. One end of the turnbuckle is connected to the mounting plate, and the second end of the turnbuckle is connected to the outer wall of the receiving groove. Using a turnbuckle ensures the connection strength between the upper and lower hoppers, while also facilitating the adjustment of the gap between them.

[0015] This invention has the following advantages over the prior art: 1. The material conveying system of this utility model includes a feeding hopper, a discharging hopper, a guide plate, a conveyor belt, and a vibration device. The discharging hopper has an annular receiving groove at its top opening. The lower end of the feeding hopper is inserted into the receiving groove, and the feeding hopper and discharging hopper are connected by an adjustable flexible connection. The discharging hopper vibrates under the control of the vibration device. By adjusting the length of the adjustable flexible connection, the gap between the feeding hopper and discharging hopper can be controlled, thereby adapting to the anti-sticking requirements of different material characteristics (such as humidity and viscosity). For example, when the material has high viscosity, the gap can be appropriately increased to improve the movement space of the discharging hopper. The guide plate is installed inside the upper hopper, with one end connected to the inner wall of the upper hopper and the other end extending into the lower hopper. The guide plate has two functions: first, it can block the receiving trough to prevent materials from entering the gap between the upper and lower hoppers; second, the guide plate has an angle of 165°~175° with the inner wall of the upper hopper, making the connection between the two relatively smooth, which can weaken the shoulder angle, reduce stress concentration, and prevent materials from forming material arches or sticking to the wall at this point, resulting in poor unloading and blockage.

[0016] 2. The vibration device of this utility model includes a vibrator and a control component. The vibrator is installed on the outer wall of the feeding hopper to drive the feeding hopper to vibrate. The control component includes a bracket, a proximity switch, and a swing plate. The bracket is positioned close to the conveyor belt, and the proximity switch and swing plate are both mounted on the bracket. When material is being conveyed normally on the conveyor belt, the second end of the swing plate is propelled by the material, causing its first end to move away from the proximity switch, at which point the vibrator is turned off. When the material flow on the conveyor belt decreases or stops, the swing plate naturally falls, and its first end approaches the proximity switch, at which point the vibrator is turned on. Through the above settings, the vibrator automatically stops when there is material on the conveyor belt, reducing unnecessary energy consumption. The vibration only acts on the lower half of the hopper, which, compared to overall vibration, reduces the impact on surrounding equipment and extends the service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the material conveying system in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view at point E in the middle; In the diagram: 1. Feeding bin; 2. Discharging bin; 3. Receiving trough; 4. Adjustable flexible connection; 5. Guide plate; 501. Inclined section; 502. Vertical section; 6. Conveyor belt; 7. Vibrator; 8. Support frame; 801. First support leg; 802. Support rod; 9. Proximity switch; 10. Swing plate; 11. Steel structure base; 12. Bearing seat; 13. Pulley; 14. Protective shell; 15. Mounting plate; 16. Material. Detailed Implementation

[0018] 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.

[0019] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0020] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be further discussed and described in the description of the subsequent figures.

[0022] Example: like Figures 1 to 2 As shown, this utility model provides a material conveying system, including: a loading bin 1, a discharging bin 2, a guide plate 5, a conveyor belt 6, and a vibration device; the loading bin 1 is fixed to the upper material outlet, and the loading bin 1 is a vertical cube or cylinder, with openings at both ends that are connected to the inner cavity, and the inner wall is distributed vertically in the longitudinal section; the loading bin 1 is used to receive the material above and guide it to the discharging bin 2. In actual use, the loading bin is in a full state, and it has the function of storing materials and initially guiding the flow.

[0023] The unloading hopper 2 is located below the loading hopper 1. The unloading hopper 2 is hollow and has both a top and bottom opening, forming a vibratory unloading channel for the material. A ring-shaped receiving groove 3 is provided at the top opening of the unloading hopper 2, with the opening of the receiving groove 3 facing the loading hopper 1. The lower end of the loading hopper 1 is inserted into the receiving groove 3, and the loading hopper 1 and unloading hopper 2 are connected by an adjustable flexible connection, allowing the gap between the lower end of the loading hopper 1 and the bottom of the receiving groove 3 to be adjustable. The unloading and loading hoppers are designed as a combined hopper with adjustable gaps. By controlling the size of the gap, it adapts to the anti-sticking requirements of different material characteristics (such as humidity and viscosity). (For example, when the material is highly viscous, the gap can be appropriately increased to improve the movement space of the unloading hopper, and the vibration frequency and amplitude can be increased in conjunction with the vibrator to reduce material adhesion.) The materials used for the unloading and loading hoppers are wear-resistant and have excellent anti-adhesion properties (such as high-polymer wear-resistant plastics or ceramic-lined metal materials), extending the service life of the hoppers and reducing the probability of material adhesion.

[0024] The first end of the guide plate 5 is disposed on the inner wall of the upper hopper 2, near the lower end of the upper hopper 1, and the second end of the guide plate 5 extends into the lower hopper 2. The angle between the first end of the guide plate 5 and the inner wall of the upper hopper 2 is 165°~175°. During material discharge, the material flows along the guide plate 5 into the lower hopper to prevent material accumulation and to prevent material from being discharged through the gap between the upper hopper 1 and the lower hopper 2. By setting the guide plate, firstly, it can block the receiving trough and prevent material from entering the gap between the upper and lower hoppers; secondly, the 165°~175° angle between the guide plate and the inner wall of the upper hopper makes the connection between the two relatively gentle, which can weaken the shoulder angle, improve the pressure distribution of the hopper wall, reduce the stress concentration shoulder angle, and avoid the formation of material arching.

[0025] The conveyor belt 6 is located below the bottom opening of the discharge bin 2 and is used to transport the material 16 discharged from the discharge bin 2. The vibration device is used to control the vibration of the discharge bin 2 when the material flow on the conveyor belt decreases or stops. The vibration device only controls the vibration of the discharge bin when the material flow on the conveyor belt decreases or stops, which ensures the anti-sticking function and avoids unnecessary vibration during material transportation (such as reducing energy consumption and reducing equipment wear).

[0026] Specifically, the vibration device includes a vibrator 7 and a control assembly. The vibrator 7 is installed on the outer wall of the feeding hopper 2. The control assembly includes a bracket 8, a proximity switch 9, and a swing plate 10. The bracket 8 is close to the conveyor belt 6. The proximity switch 9 is installed on the bracket 8 and is signal-connected to the vibrator 7 to control the start and stop of the vibrator 7. The swing plate 10 is hinged to the bracket 8, and the first end of the swing plate 10 cooperates with the proximity switch 9. The second end of the swing plate 10 is close to the conveyor belt 6, specifically, its second end can extend into the material flow on the conveyor belt below. When the conveyor belt 6 is normally conveying material, the second end of the swing plate 10 is pushed by the material, causing its first end to move away from the proximity switch 9. The proximity switch receives a signal to control the vibrator 7 to turn off. When the material flow on the conveyor belt 6 decreases or stops, the swing plate 10 naturally falls, and its first end approaches the proximity switch. The proximity switch receives a signal to control the vibrator 7 to turn on (the control principle of the proximity switch is existing technology). The swing plate is made of metal. Proximity switch 9 is an inductive proximity switch (not a capacitive proximity switch), which has strong anti-interference capabilities, fast response speed, and only reacts to metal materials; (compared to capacitive proximity switches, it is more sensitive to environmental changes, such as humidity, temperature, and surrounding objects, requiring attention to the installation environment). It is not affected by other substances, avoiding false activation caused by particulate matter in the field (based on the principle of electromagnetic induction, it senses metal objects through a magnetic field; when the metal object moves towards or approaches the switch, the signal automatically changes and is converted into a switch signal). When there is material on the conveyor belt, the material pushes the swing plate forward. After the inductive proximity switch detects the displacement of the swing plate, it triggers the vibrator start / stop logic. Vibrator 7 is a downward-sloping vibrator. The downward-sloping vibrator is installed at an angle on the exterior of the feeding hopper 2. During operation, it drives the feeding hopper 2 to vibrate, using vibration inertia to make the feeding hopper shake like a sieve, breaking the adhesion between the material and the hopper wall, solving the problems of material sticking to the wall and bridging. The vibration frequency and amplitude can be adapted and adjusted according to the material characteristics (through experiments or debugging) to optimize the anti-sticking effect.

[0027] In this embodiment, the operating principle of the vibration device is as follows: 1. No Material State: When there is no material on the conveyor belt, the swing plate 10 is constrained by its own weight and the support frame, and is in a vertical state. The inductive proximity switch senses the signal of the swing plate and triggers the downward-sloping vibrator to start. When the vibrator is working, due to the connection of the turnbuckle, there is a gap between the upper and lower hoppers. Under the vibration excitation, the lower hopper produces a shaking effect similar to a sieve, causing the material adhering to the lower hopper 2 to be shaken off, avoiding material sticking to the wall and bridging, and ensuring smooth material discharge.

[0028] 2. Material-laden state: When material is being conveyed on conveyor belt 6, the material pushes the swing plate, causing it to deviate from its vertical position. The inductive proximity switch cannot detect a valid signal, triggering the vibrator to stop working. This design can automatically control the vibrator 7 according to the material state on conveyor belt 6, ensuring both the anti-sticking function and avoiding unnecessary vibration during material conveying (such as reducing energy consumption and equipment wear).

[0029] In this embodiment, reference Figure 2 The guide plate 5 includes an inclined section 501 and a vertical section 502 connected together. The first end of the inclined section 501 is connected to the inner wall of the feeding hopper 1, and the second end of the inclined section 501 is connected to the vertical section 502. The vertical section 502 is used to cover the receiving trough 3 to prevent material from clogging the receiving trough and affecting the vibration of the discharging hopper or being discharged through the receiving trough. The angle between the inclined section 501 and the inner wall of the feeding hopper is 165°~175°, for example: 165°, 168°, 170°, 175°, etc. Preferably, it is 170°, as this angle is gentler and can weaken the shoulder angle, avoiding material arching.

[0030] In this embodiment, the inner diameter of the top opening of the feeding hopper 2 is larger than the inner diameter of the bottom opening of the feeding hopper 2, so that the inner diameter of the feeding hopper gradually decreases from the top to the bottom, thereby forming a guide slope; the angle between the inner wall of the feeding hopper and the vertical direction is 145°~165°, for example 145°, 150°, 155°, 160°, 165°, etc., preferably 160°. In this embodiment, the feeding hopper 2 is conical, which facilitates material flow. At the same time, with the vibration of the vibrator, it can effectively solve the problems of material sticking to the wall and poor material flow in the feeding hopper.

[0031] The depth of the receiving trough 3 is 50~100mm. By setting the receiving trough 3, it is possible to prevent the lower hopper from separating from the upper hopper due to vibration when the gap between the upper and lower hoppers is too large, thus avoiding material spillage.

[0032] In this embodiment, a steel structure base 11 is also included, on which two bearing seats 12 are mounted. Each bearing seat 12 is rotatably equipped with a pulley 13, and the conveyor belt 6 is connected to the two pulleys 13. This arrangement improves the installation stability of the conveyor belt.

[0033] In this embodiment, the support 8 includes a first leg 801, a second leg, a crossbeam, and a support rod 802. The first leg 801 and the second leg are both mounted on a steel structure base 11 and symmetrically arranged along the width of the conveyor belt. The two ends of the crossbeam are connected to the first leg and the second leg respectively, so that the crossbeam spans the belt. The proximity switch 9 is mounted on the crossbeam. The support rod is connected to the crossbeam and located below the proximity opening 9. The swing plate 10 is hinged to the support rod. This arrangement improves the stability of the support.

[0034] The control components of this embodiment also include a protective shell 14, which is disposed on the outer periphery of the proximity switch 9. By providing the protective shell 14, external dust can be blocked, ensuring the performance of the proximity switch and extending its service life. The number of vibrators 7 is two or more, the specific number selected according to actual needs, and all vibrators are installed on the outer wall of the unloading hopper. The adjustable flexible connection 4 is a turnbuckle. An mounting plate 15 is provided on the outer wall of the loading hopper 1. One end of the turnbuckle is connected to the mounting plate 15, and the second end of the turnbuckle is connected to the outer wall of the receiving groove 3. Using a turnbuckle ensures the connection strength between the upper and lower hoppers and facilitates adjustment of the gap between them. In actual implementation, the adjustable flexible connection can also be selected as an adjustable bolt group or a threaded connecting rod, as long as it meets the function of a flexible connection with adjustable length.

[0035] In this invention, a turnbuckle is used to adjust the gap between the upper and lower hoppers, adapting to the anti-sticking requirements of different materials. The inclined vibrator is installed at an angle, creating a sieve-like shaking effect in the lower hopper during operation, breaking the adhesion between the material and the hopper wall. The swing plate is vertical when there is no material; when there is material, it is pushed off course by the material, triggering an inductive proximity switch to control the vibrator's start and stop. Through the linkage between the swing plate and the inductive proximity switch, the vibrator automatically starts and stops according to the material status on the conveyor belt, solving the problem of material sticking to the wall. In specific use, the vibration frequency and amplitude of the inclined vibrator are adjusted according to the material's moisture content, viscosity, particle size, and other characteristics (some vibrators support parameter adjustment). The positions of the inductive proximity switch and the swing plate are adjusted to ensure that the vibration is reliably triggered when the swing plate moves (pushed by material).

[0036] The operating procedure of this device is as follows: 1. Automatic Vibration Without Material: When there is no material on the conveyor belt, the oscillating plate remains vertical due to the lack of external force. The inductive proximity switch detects the signal from the oscillating plate and triggers the downward-sloping vibrator to start. The vibrator drives the feeding hopper to vibrate, and by utilizing the gap structure between the upper and lower feeding hoppers, the feeding hopper produces a sieve-like shaking, continuously disrupting the material adhesion conditions, preventing material from sticking to the wall and bridging, and preparing for feeding.

[0037] 2. Vibration Stops When Material is Flowing: When material is being conveyed on the conveyor belt, the material moves forward, pushing the oscillating plate away from its vertical position. An inductive proximity switch senses this displacement and sends a signal to stop the downward-sloping vibrator. At this time, the material flows normally through the hopper, preventing vibration from affecting the stability of the material conveying process. If there is no material on the subsequent belt, the oscillating plate returns to its vertical position, and the vibrator restarts, continuously achieving automatic anti-sticking control. This avoids energy waste and reduces equipment wear and vibration interference with already flowing material.

[0038] During use, the tightness of the upper and lower connecting turnbuckles should be checked regularly to ensure stable hopper gaps; dust should be cleaned from the surface of the swing plate and inductive proximity switch to ensure sensing accuracy; the vibrator parameters and hopper gaps should be readjusted according to changes in material characteristics (such as seasonal humidity differences) to optimize the anti-sticking effect. If abnormal vibration noise or poor material feeding occurs, check the vibrator installation tightness and the wear condition of the hopper material; replace the wear-resistant liner or adjust the vibration parameters if necessary.

[0039] The inventive point of this device is: 1. Automatic anti-sticking: Through the linkage between the swing plate and the inductive proximity switch, as a simple and low-cost modification, the vibrator can be started and stopped automatically, reducing the workload of employees. There is no need for manual intervention to supervise the feeding and operation of the vibrator, effectively solving the problem of material sticking in the case of sliding and bridging, ensuring smooth feeding and improving production continuity.

[0040] 2. Innovative structure with excellent arch-breaking effect: The unique "upper and lower split + adjustable gap" design not only alleviates the stress concentration on the shoulder, but also concentrates the vibration energy on the lower half that is prone to blockage, forming a highly efficient "sieve-like shaking". The arch-breaking and anti-sticking effect is significantly better than the overall vibration.

[0041] 3. High adaptability and maintainability: The turnbuckle design of the upper and lower hoppers allows for flexible adjustment of the gap size according to material characteristics (such as viscosity and particle size) to optimize the vibration mode. The split structure also facilitates local repairs or replacements, reducing maintenance costs.

[0042] 4. Energy saving and consumption reduction, extended service life: The vibrator automatically stops when there is material, avoiding the vibrator's idling and ineffective work, resulting in significant energy savings. At the same time, the vibration only acts on the lower half of the hopper, reducing the mechanical fatigue of the entire system compared to overall vibration, effectively extending the service life of the hopper and related equipment.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material conveying system, characterized in that, include: The feeding hopper is fixed to the upper material outlet; The unloading hopper is located below the loading hopper. The unloading hopper is hollow inside and has a top opening and a bottom opening. An annular receiving groove is provided at the top opening of the unloading hopper, with the opening of the receiving groove facing the loading hopper. The lower end of the loading hopper is inserted into the receiving groove, and the loading hopper and the unloading hopper are connected by an adjustable soft connection so that the gap between the lower end of the loading hopper and the bottom of the receiving groove is adjustable. The guide plate has its first end located on the inner wall of the feeding hopper and close to the lower end of the feeding hopper. The second end of the guide plate extends into the lower hopper. The angle between the first end of the guide plate and the inner wall of the feeding hopper is 165°~175°. When feeding, the material flows along the guide plate into the lower hopper to prevent the material from entering the receiving tank along the hopper wall. A conveyor belt, located below the bottom opening of the hopper, is used to transport materials discharged from the hopper; A vibration device is used to control the vibration of the discharge bin when the material flow on the conveyor belt decreases or stops.

2. The material conveying system according to claim 1, characterized in that: The vibration device includes a vibrator and a control assembly. The vibrator is installed on the outer wall of the feeding hopper. The control assembly includes a bracket, a proximity switch, and a swing plate. The bracket is close to the conveyor belt. The proximity switch is installed on the bracket and is signal-connected to the vibrator for controlling the start and stop of the vibrator. The swing plate is hinged to the bracket, and the first end of the swing plate engages with the proximity switch. The second end of the swing plate is close to the conveyor belt. When material is being conveyed normally on the conveyor belt, the second end of the swing plate is propelled by the material, causing its first end to move away from the proximity switch, at which point the vibrator is off. When the material flow on the conveyor belt decreases or stops, the swing plate naturally falls, and its first end approaches the proximity switch, at which point the vibrator is on.

3. The material conveying system according to claim 1, characterized in that: The guide plate includes an inclined section and a vertical section connected together. The first end of the inclined section is connected to the inner wall of the feeding hopper, and the second end of the inclined section is connected to the vertical section. The vertical section is used to cover the receiving trough. The included angle between the inclined section and the inner wall of the feeding hopper is 165°~175°.

4. The material conveying system according to claim 3, characterized in that: The inner diameter of the top opening of the feeding hopper is larger than the inner diameter of the bottom opening of the feeding hopper, so that the inner diameter of the feeding hopper gradually decreases from the top to the bottom, thereby forming a guide slope; the angle between the inner wall of the feeding hopper and the vertical direction is 145°~165°.

5. The material conveying system according to claim 1, characterized in that: The depth of the receiving groove is 50~100mm.

6. The material conveying system according to claim 2, characterized in that: It also includes a steel structure base, on which two bearing seats are mounted, each bearing seat being rotatably provided with a pulley, and the conveyor belt being connected to the two pulleys.

7. The material conveying system according to claim 6, characterized in that: The support includes a first leg, a second leg, a crossbeam, and a support rod; the first leg and the second leg are both mounted on a steel structure base and are symmetrically arranged along the width direction of the conveyor belt; the two ends of the crossbeam are respectively connected to the first leg and the second leg so that the crossbeam spans the belt; the proximity switch is mounted on the crossbeam; the support rod is connected to the crossbeam and is located below the proximity opening; and the swing plate is hinged to the support rod.

8. The material conveying system according to claim 2, characterized in that: The control component also includes a protective housing disposed on the outer periphery of the proximity switch.

9. The material conveying system according to claim 2, characterized in that: The number of vibrators is two, and both vibrators are installed on the outer wall of the feeding hopper.

10. The material conveying system according to claim 1, characterized in that: The adjustable flexible connection is a turnbuckle, and an installation plate is provided on the outer wall of the feeding hopper. One end of the turnbuckle is connected to the installation plate, and the second end of the turnbuckle is connected to the outer wall of the receiving groove.

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