Feeding device and feeding equipment

Abstract

The utility model relates to the technical field of feeding mechanical equipment, in particular to a feeding device and feeding equipment. The feeding device at least comprises a material frame; the stock bin is located in the material frame. The stock bin comprises a first material frame detachably connected with the material frame and a second material frame hinged to the first material frame. The first material frame and the second material frame are encircled to form a loading space with a feeding hole and a discharging hole; the telescopic mechanism is provided with a fixed end and a movable end, the fixed end is hinged to the first material frame or the material frame, and the movable end is hinged to the second material frame; through the telescopic action of the telescopic mechanism, the first material frame and the second material frame are driven to rotate relative to the hinged point of the first material frame and the second material frame, so that the discharging port is controlled to be in the unfolded state to allow materials to flow out or in the closed state to prevent the materials from flowing out. By means of the design, materials can be simply and effectively added, it is guaranteed that the materials cannot be scattered or fall out of a feeding area in the conveying process, and therefore the working environment is greatly improved, and material waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of feeding machinery and equipment, and in particular to a feeding device and feeding equipment. Background Technology

[0002] Currently, in industrial or food production, it is common to add some granular materials. The technologies commonly used for conveying and adding such materials include conveyor belts or hopper lifting and tilting structures. However, these methods are not stable enough during the feeding process, easily causing materials to spill or fall outside the feeding area, affecting the working environment and wasting materials. Utility Model Content

[0003] In a first aspect, this utility model provides a feeding device, which includes at least a material rack, a hopper, and a telescopic mechanism; the hopper is located in the material rack; the hopper includes a first material frame detachably connected to the material rack and a second material frame hinged to the first material frame; the first material frame and the second material frame together form a loading space having an inlet and an outlet; the telescopic mechanism has a fixed end and a movable end, the fixed end is hinged to the first material frame or the material rack, and the movable end is hinged to the second material frame; through the telescopic action of the telescopic mechanism, the first material frame and the second material frame are driven to rotate relative to their hinge points, so as to control the outlet to be in an expanded state to allow material to flow out or in a closed state to prevent material from flowing out.

[0004] In some embodiments, the telescopic mechanism is at least one of a hydraulic cylinder, a pneumatic cylinder, an electric push rod, a gear and rack structure, or a linkage structure.

[0005] In some embodiments, a sealing strip is further included, which is respectively disposed at the discharge port formed by the first material frame and the second material frame, such that when the material frame is closed, the sealing strip on the first material frame at the discharge port abuts against the sealing strip on the second material frame.

[0006] In some embodiments, at least a portion of the inner surfaces of the first and second material frames near the discharge port are inclined surfaces, such that the cross-sectional area of ​​the loading space gradually decreases towards the discharge port.

[0007] In some embodiments, the hopper has multiple sets, the rack has multiple through slots, and the discharge ports of the multiple sets of hoppers correspond to multiple through holes, so that the material in the hopper falls from the discharge port and through the through slot to the receiving area below the through slot.

[0008] In some embodiments, a conveying mechanism is further included; the conveying mechanism includes a conveying rail and a conveying pulley; the conveying rail is slidably connected to the conveying pulley, and the conveying pulley is detachably connected to the material rack to drive the material rack and the hopper on it to move on the conveying rail.

[0009] In some embodiments, a braking mechanism is also included; the braking mechanism is disposed at the conveying pulley and is directly or indirectly connected to the conveying pulley, and is used to control the movement state of the material rack and the hopper on the conveying rail.

[0010] In some embodiments, a control system is further included, which is electrically connected to the telescopic mechanism and is used to control the telescopic movement of the telescopic mechanism to realize the automatic opening and closing of the discharge port; the control system also includes a detection sensor, which is disposed in the hopper or near the discharge port and is used to detect the state or quantity of the material and feed the detection signal back to the control system to adjust the movement of the telescopic mechanism.

[0011] In some embodiments, the control system further includes a position sensor for detecting the specific position of the rack and hopper on the conveyor rail.

[0012] Secondly, this utility model also provides a feeding device, which adopts the feeding device as described in any of the above embodiments.

[0013] The feeding device provided by this utility model can achieve material addition simply and effectively through the design of the hopper, ensuring that the material will not spill or fall outside the feeding area during the conveying process, thereby greatly improving the working environment, reducing material waste, and improving overall production efficiency.

[0014] Other features and beneficial effects of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A perspective view of a feeding device provided in an embodiment of this utility model;

[0017] Figure 2This is a side view of a feeding device provided in an embodiment of the present invention;

[0018] Figure 3 This is a top view of a feeding device provided in an embodiment of the present invention;

[0019] Figure 4 A perspective view of the feeding device provided in one embodiment of the present invention;

[0020] Figure 5 A perspective view of a feeding device provided for other embodiments of this utility model.

[0021] Figure label:

[0022] 10 – Material rack; 10a – Through slot; 20 – Material bin; 21 – First material frame; 22 – Second material frame; 20a – Inlet; 20b – Outlet; 30 – Telescopic mechanism; 30a – Fixed end; 30b – Moving end; 23 – Sealing strip; 40 – Conveying mechanism; 41 – Conveying pulley; 42 – Conveying rail frame; 50 – Braking mechanism; 51 – Brake motor; 52 – Brake frame; 60 – Control system. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The technical features designed in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that all terms used in this utility model (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains, and should not be construed as limiting this utility model; it should be further understood that the terms used in this utility model should be understood to have the same meaning as those in the context of this specification and in the relevant field, and should not be understood in an idealized or overly formal sense, except as expressly defined in this utility model.

[0025] Please see Figures 1-4This utility model provides a feeding device, which is mainly used in automated or semi-automated production lines to quantitatively supply materials, such as powdered or granular materials, to downstream equipment such as product processing machines and food processing machines. The device has a compact overall structure, is easy to operate and maintain. The feeding device includes at least a material rack 10, a material hopper 20, and a telescopic mechanism 30.

[0026] In practical implementation, the material rack 10, as the supporting structure of the entire device, can be designed as a sturdy and durable metal frame, plastic frame, or frame of other materials to ensure that it can withstand the weight of the materials and the forces generated during operation. The bottom of the material rack 10 can be equipped with casters, fixed feet, or rollers for easy movement or fixed installation.

[0027] The hopper 20 is located within the material rack 10. The hopper 20 includes a first material frame 21 detachably connected to the material rack 10 and a second material frame 22 hinged to the first material frame 21. The first material frame 21 is a fixed part and can be fixedly installed on the material rack 10 by, but not limited to, threaded connections, snap-fit ​​connections, or other detachable connection methods. The second material frame 22 is hinged to the first material frame 21 to form an openable structure. The first material frame 21 and the second material frame 22 together form a loading space with an inlet 20a and an outlet 20b for holding materials. The top of the first material frame 21 and the second material frame 22 is designed as the inlet 20a, and the bottom is designed as the outlet 20b.

[0028] Preferably, to ensure that the material can fall smoothly from the hopper 20, this embodiment preferably has at least a portion of the inner surfaces of the first material frame 21 and the second material frame 22 near the discharge port 20b as inclined surfaces, so that the cross-sectional area of ​​the loading space gradually decreases towards the discharge port 20b. That is, at least a portion of the hopper 20 near the discharge port 20b is designed as an inverted bucket shape, which helps the material to flow naturally towards the discharge port 20b under the action of gravity, reducing the retention and accumulation of material in the hopper 20, thereby improving the efficiency and accuracy of feeding.

[0029] The telescopic mechanism 30 has a fixed end 30a and a movable end 30b, wherein the fixed end 30a and the movable end 30b refer to the two ends of the telescopic mechanism 30 that are relatively displaced during the telescopic movement. The fixed end 30a is hinged to the first material frame 21 or the material rack 10, and the movable end 30b is hinged to the second material frame 22. In this embodiment, it is preferred that the fixed end 30a is hinged to the material rack 10, and the movable end 30b is hinged to the second material frame 22 near the top. The hinge position can be reasonably designed according to the actual structure of the hopper 20 or the material rack 10 and the hinge position of the first material frame 21 and the second material frame 22, and this embodiment is not limited thereto.

[0030] The telescopic mechanism 30 is driven by pneumatic, electric, or hydraulic means, depending on the application scenario and requirements. Preferably, the telescopic mechanism 30 is at least one of a hydraulic cylinder, a pneumatic cylinder, an electric push rod, a gear and rack structure, or a linkage structure. For example, in this embodiment, a pneumatic cylinder is preferred.

[0031] The telescopic mechanism 30 extends and retracts, driving the first material frame 21 and the second material frame 22 to rotate relative to their hinge points. This controls the outlet 20b to be in an extended state to allow material to flow out or in a closed state to prevent material from flowing out. In other words, the hinge design between the telescopic mechanism 30, the first material frame 21, and the second material frame 22 is designed to enable control over the opening and closing of the outlet 20b.

[0032] It should be noted that, regarding the specific design of its structure, hinge position, and hinge method, those skilled in the art can make settings according to actual needs, and any corresponding modifications or improvements fall within the protection scope of this utility model.

[0033] Based on the above, the specific working principle of the feeding device provided in this embodiment includes: 1. Feeding stage: First, the required material is added into the hopper 20 through the feed inlet 20a. At this time, the telescopic mechanism 30 is in a retracted state, and the discharge outlet 20b of the second material frame 22 and the first material frame 21 are tightly closed to maintain the sealing of the loading space and prevent premature leakage of material. 2. Discharge stage: When it is necessary to discharge material, the telescopic mechanism 30 is activated to extend. As the moving end 30b gradually moves away from the fixed end 30a, the second material frame 22 rotates outward around the hinge point, opening the discharge outlet 20b. Under the action of gravity, the material flows into the receiving equipment or container below through the discharge outlet 20b. 3. Closing stage: After the discharge is completed, the telescopic mechanism 30 reverses its operation and retracts back to its original position. The second material frame 22 then closes the discharge outlet 20b, preparing for the next feeding cycle.

[0034] In an optional embodiment, an adjustable baffle or gate structure (not shown in the figure) may be added to the bottom of the second material frame 22 to finely adjust the opening size of the discharge port 20b by manual or automatic means (such as motor drive) to further precisely control the flow rate and speed of the material.

[0035] Preferably, please refer to Figure 4 The feeding device also includes a sealing strip 23, which is respectively disposed at the discharge port 20b formed by the first material frame 21 and the second material frame 22, so that when the device is closed, the sealing strip 23 on the first material frame 21 located at the discharge port 20b abuts against the sealing strip 23 on the second material frame 22.

[0036] In practice, the sealing strip 23 is made of a material with high elasticity, wear resistance, and corrosion resistance, such as silicone, rubber, or polytetrafluoroethylene. These materials can maintain good elasticity and sealing performance during long-term use. The sealing strip 23 is respectively set at the discharge port 20b formed by the first material frame 21 and the second material frame 22. Specifically, a sealing strip 23 is installed on the edge of the first material frame 21 near the discharge port 20b, and a corresponding sealing strip 23 is also installed on the second material frame 22. When the hopper 20 is in the closed state, these two sealing strips 23 will abut against each other to form a tight sealing structure. The shape and size of the sealing strip 23 are customized according to the actual shape and size of the discharge port 20b to ensure that the sealing strip 23 can completely fit the edge of the discharge port 20b to achieve the best sealing effect. At the same time, the thickness and width of the sealing strip 23 are reasonably designed according to actual needs to ensure sealing performance while avoiding unnecessary obstruction to the opening and closing operation of the hopper 20.

[0037] With the discharge port 20b closed, the first material frame 21 and the second material frame 22 are connected by a hinge point, forming a tight enclosure structure. At this time, the sealing strips 23 located at the discharge port 20b abut against each other, forming an effective sealing barrier. Due to the high elasticity and wear resistance of the sealing strip 23 material, it can maintain good sealing performance even during long-term use, effectively preventing material leakage from the discharge port 20b.

[0038] Please continue reading. Figure 1 In this embodiment, the hopper 20 preferably has multiple sets, and the material rack 10 has multiple through slots 10a. The multiple sets of material hopper 20 discharge ports 20b correspond to multiple through holes, so that the material in the hopper 20 falls from the discharge port 20b and through the through slots 10a to the receiving area below the through slots 10a.

[0039] In practical implementation, the material rack 10 is equipped with multiple independent hoppers 20, each hopper 20 used to store one or more specific materials. The number, size, and shape of the hoppers 20 can be flexibly designed according to actual needs to meet the storage requirements of different materials. For example, the number of hoppers 20 can be 1, 2, 3, 4, 5, or 6 sets, etc. This embodiment is not limited to the 3 sets shown in the accompanying drawings. The main body of the material rack 10 is designed with multiple through slots 10a, the number, position, and size of which correspond one-to-one with the discharge port 20b of the hopper 20. Of course, multiple hoppers 20 can also correspond to one through slot 10a, as long as it is designed reasonably. Each through slot 10a is designed to be sufficiently spacious to ensure that the material can fall smoothly from the discharge port 20b of the hopper 20 and accurately reach the receiving area below through the through slot 10a. The receiving area can be one or more containers, conveyor belts, or other collection devices or corresponding processing equipment, etc., for receiving the material falling from the through slot 10a.

[0040] Preferably, the discharge port 20b at its maximum opening position should be lower than or equal to the height of the channel 10a. Furthermore, the cross-sectional area of ​​the discharge port 20b at its maximum opening position should be less than or equal to the cross-sectional area of ​​the channel 10a. This design ensures that material can fall directly from the discharge port 20b into the channel 10a under gravity, preventing material spillage or blockage during transport.

[0041] Please see Figure 5 The feeding device provided in this embodiment also includes a conveying mechanism 40; by adding a conveying mechanism 40, this embodiment enables the automatic or manual movement of the material rack 10 and the hopper 20 on it on the conveying rail frame 42, thereby improving the flexibility and efficiency of material management.

[0042] In a specific implementation, the conveying mechanism 40 includes a conveying rail frame 42 and a conveying pulley 41; the conveying rail frame 42 is slidably connected to the conveying pulley 41, and the conveying pulley 41 is detachably connected to the material rack 10, so as to drive the material rack 10 and the hopper 20 on it to move on the conveying rail frame 42.

[0043] The conveyor rail frame 42 is the foundation of the entire conveying mechanism 40, designed as a robust frame structure capable of supporting the weight of the material rack 10 and the materials on it. In this embodiment, the conveyor rail frame 42 is designed to support the material rack 10 and the hopper 20 at a certain height, allowing materials in the hopper 20 to fall into the receiving area below. The specific structural design of the conveyor rail frame 42 can be rationally designed according to actual needs. Furthermore, the conveyor rail frame 42 includes a slide rail for guiding the movement trajectory of the conveyor pulley 41. The slide rail can be straight, curved, or a combination of these to adapt to different material transport requirements. The specific slide rail laying method can be rationally designed according to actual transport requirements and transport location; this embodiment does not impose any limitations on this.

[0044] Conveying pulleys 41 are installed on the bottom or side of the material rack 10 and are slidably connected to the slide rails on the conveying rail frame 42. The conveying pulleys 41 are made of wear-resistant, low-friction materials to ensure the stability and durability of the material rack 10 during movement. The number and position of the conveying pulleys 41 are rationally configured according to the weight and size of the material rack 10 to ensure stability and safety during movement. In this embodiment, the conveying pulleys 41 on opposite sides are preferably fixedly connected by a rotating shaft. The conveying mechanism 40 drives the material rack 10 through the cooperation of a driving component and a transmission component to achieve the conveying of the material rack 10 on the conveying rail frame 42. The driving component can be, but is not limited to, motor drive, pneumatic drive, hydraulic drive, or manual drive. The transmission component can be, but is not limited to, a chain structure, a gear structure, or a transmission belt structure. For example, in this embodiment, a motor combined with a transmission belt is preferred. The specific structure can be rationally designed according to actual needs, and this embodiment does not limit it.

[0045] Furthermore, the feeding device described in this embodiment also includes a braking mechanism 50. The added braking mechanism 50 enables precise control of the material rack 10 and the hopper 20 on the conveyor rail 42, preventing accidental movement or overspeeding, thereby improving the safety and stability of material management.

[0046] In this embodiment, the braking mechanism 50 is located at the conveying pulley 41 and is directly or indirectly connected to the conveying pulley 41, used to control the movement of the material rack 10 and the hopper 20 on the conveying rail frame 42. The braking mechanism 50 can employ various methods such as mechanical braking, electromagnetic braking, hydraulic braking, or pneumatic braking. The specific braking method selected depends on factors such as the working environment of the feeding device, load requirements, cost budget, and ease of maintenance.

[0047] This embodiment preferably employs a mechanical braking method. For example... Figure 4 As shown, the conveying pulleys 41 on opposite sides of the material rack 10 are connected by a rotating shaft, and the braking mechanism 50 is located near the rotating shaft. The braking mechanism 50 includes a brake motor 51 and a brake frame 52, which are connected by gear transmission. When braking is required, the brake motor 51 rotates and drives the brake frame 52 closer to the rotating shaft through the gears, thereby decelerating or stopping the movement by generating frictional resistance with the rotating shaft. The design of the braking mechanism 50 allows for precise control of the movement of the material rack 10 and the hopper 20 on the conveying rail 42, effectively preventing safety hazards such as accidental movement or overspeed, and ensuring that the material rack 10 and the hopper 20 remain stably in the designated position, thus improving the stability and reliability of feeding and adding materials.

[0048] In an optional implementation, the feeding device provided in this embodiment also includes a control system 60, which integrates automated control technology to realize intelligent control of the telescopic mechanism 30 and real-time monitoring of the material status and the position of the material rack 10.

[0049] In practical implementation, the control system 60 mainly consists of a microprocessor (or PLC), a power supply module, an input / output module, and a communication module. The microprocessor, acting as the control center, is responsible for receiving and processing signals from various sensors and issuing control commands according to a preset algorithm.

[0050] The control system 60 is electrically connected to the telescopic mechanism 30 and is used to control the telescopic movement of the telescopic mechanism 30, thereby automatically opening and closing the discharge port 20b. Specifically, the control system 60 is electrically connected to the telescopic mechanism 30 through an input / output module to achieve precise control of its telescopic movement.

[0051] The control system 60 also includes a detection sensor (not shown in the figure), which is located inside the hopper 20 or near the discharge port 20b. This sensor detects the state or quantity of the material and feeds the detection signal back to the control system 60 to adjust the movement of the telescopic mechanism 30. The detection sensor can be a photoelectric sensor, a weight sensor, an ultrasonic sensor, etc., with the specific selection depending on the characteristics of the material and the detection requirements. By designing the detection sensor, the material addition status can be effectively determined, facilitating automated control of the amount of material added and effectively improving the accuracy, efficiency, and automation level of the feeding process.

[0052] Furthermore, the control system 60 also includes a position sensor (not shown in the figure). The position sensor can be installed on the conveyor rail 42 or the material rack 10 to detect the specific position of the material rack 10 and the hopper 20 on the conveyor rail 42 in real time. The position sensor can be a magnetic induction sensor, photoelectric switch, RFID tag reader, etc., to ensure the accurate positioning of the material rack 10 during the conveying process.

[0053] Meanwhile, based on the above structure, the control system 60 can be flexibly configured and adjusted according to different material characteristics and feeding requirements, thus making it suitable for a variety of application scenarios.

[0054] This utility model also provides a feeding device, which adopts the feeding device as described in any of the above embodiments.

[0055] By designing the feeding device, automated and intelligent material conveying and feeding functions are achieved. The feeding equipment can be used to transport one or more materials, and the feeding device can also be used to hold one or more materials, allowing for the simultaneous or asynchronous addition of these materials. The specific and reasonable designs based on actual needs all fall within the protection scope of this utility model. The feeding equipment can operate continuously or intermittently, automatically adjusting the feeding frequency and material conveying speed according to production requirements. By integrating an advanced control system and detection sensors, the feeding equipment achieves efficient and precise material conveying functions.

[0056] The feeding equipment in this embodiment is particularly suitable for production lines requiring automated and intelligent material handling, such as those in the pharmaceutical, chemical, and food processing industries. In these industries, precise material management and efficient transport are crucial for ensuring product quality and improving production efficiency. By adopting the feeding equipment in this embodiment, companies can achieve automated and intelligent management of the material handling process, thereby improving production efficiency, reducing production costs, and enhancing market competitiveness.

[0057] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this utility model can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0058] Although this document frequently uses terms such as material rack, channel, hopper, first material frame, second material frame, inlet, outlet, telescopic mechanism, fixed end, moving end, sealing strip, conveying mechanism, conveying rail, conveying pulley, braking mechanism, and control system, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model. The terms "first," "second," etc. (if present), in the description, claims, and accompanying drawings of the embodiments of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A charging device, characterized by, The application relates to a feeding device, comprising: a rack; a hopper located in the rack; the hopper comprises a first hopper frame detachably connected with the rack and a second hopper frame hingedly connected with the first hopper frame; the first hopper frame and the second hopper frame jointly form a loading space with an inlet and an outlet; a telescopic mechanism having a fixed end and a moving end; the fixed end is hingedly connected with the first hopper frame or the rack, and the moving end is hingedly connected with the second hopper frame; through the telescopic action of the telescopic mechanism, the hinged points of the first hopper frame and the second hopper frame relative to each other are driven to rotate, so as to control the outlet to be in an unfolded state to allow material to flow out or in a closed state to prevent material from flowing out.

2. The charging device of claim 1, wherein: The telescopic mechanism is at least one of a hydraulic cylinder, an air cylinder, an electric push rod, a gear and rack structure or a connecting rod structure.

3. The charging device of claim 1, wherein: The feeding device further comprises a sealing strip arranged at the outlet jointly formed by the first hopper frame and the second hopper frame, so that the sealing strip on the first hopper frame and the sealing strip on the second hopper frame abut against each other in the closed state.

4. The charging device of claim 1, wherein: At least part of the inner surfaces of the first hopper frame and the second hopper frame near the outlet are inclined surfaces, so that the cross-sectional area of the loading space gradually decreases towards the end of the outlet.

5. The charging device of claim 1, wherein: The hopper has multiple groups, the rack is provided with multiple through grooves, and the outlets of the multiple groups of hoppers correspond to the multiple through grooves, so that the material in the hopper falls from the outlet and falls to a receiving area below the through grooves through the through grooves.

6. The charging device of claim 1, wherein: The feeding device further comprises a conveying mechanism; the conveying mechanism comprises a conveying rail frame and a conveying pulley; the conveying rail frame is slidingly connected with the conveying pulley, and the conveying pulley is detachably connected with the rack, so as to drive the rack and the hopper thereon to move on the conveying rail frame.

7. A charging device according to claim 6, characterised in that: The feeding device further comprises a braking mechanism; the braking mechanism is arranged at the conveying pulley and directly or indirectly connected with the conveying pulley, and is used for controlling the movement state of the rack and the hopper on the conveying rail frame.

8. The charging device of claim 6, wherein: The feeding device further comprises a control system; the control system is electrically connected with the telescopic mechanism, and is used for controlling the telescopic action of the telescopic mechanism to automatically open and close the outlet; the control system further comprises a detection sensor; the detection sensor is arranged in the hopper or near the outlet, and is used for detecting the state or quantity of the material and feeding a detection signal to the control system to adjust the action of the telescopic mechanism.

9. The charging device of claim 8, wherein: The control system further comprises a position sensor; the position sensor is used for detecting the specific position of the rack and the hopper on the conveying rail frame.

10. A material feeding apparatus characterized by: The feeding device is used in the feeding device according to any one of claims 1-9.

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