Lightweight food discharge device

Abstract

A lightweight food unloading device relates to the field of food processing equipment technology. It includes a fixed unloading frame, a fixed cylinder mounted on the frame, a conical feeder installed inside the fixed cylinder, and a feeding port and a feeding valve communicating with the conical feeder. A one-way baffle cooperating with the feeding valve is also installed inside the fixed cylinder. A negative pressure auxiliary unloading component is provided, which uses a vacuum pump to create a negative pressure environment between the conical feeder and the one-way baffle. This environment is used to periodically suction lightweight food or food raw materials and their packaging, thereby assisting in puncturing the packaging and facilitating smooth material discharge, effectively preventing material jamming due to insufficient weight.

Description

Technical Field

[0001] This invention belongs to the field of food processing technology, specifically referring to a lightweight food unloading device. Background Technology

[0002] As the food industry continues to develop towards large-scale and automated production, the unloading operations of lightweight foods and food ingredients in the production, storage, and transportation stages have gradually become a crucial factor affecting overall production efficiency. Lightweight foods or food ingredients typically include puffed foods, dried fruit and vegetable granules, cereal germ, dehydrated raw materials, and semi-finished food products packaged in flexible bags or film pouches. These materials have a low overall density, small individual package weight, and significant friction and adhesion between material particles and between the material and the inner wall of the packaging. On existing production lines, these materials are mostly unpacked manually or unloaded using gravity unloading devices, which is not only labor-intensive but also lacks stability and continuity, making it difficult to meet the requirements of modern food processing for automation and high efficiency.

[0003] Existing automatic unloading devices mostly employ conical unloaders, gravity hoppers, or tilting unloading structures. Their basic working principle is to utilize the material's own weight to slide down the conical or inclined surface, thus achieving unloading. However, for lightweight materials, due to their insufficient weight, they often cannot overcome the frictional resistance between materials and between the material and the inner wall of the unloader, resulting in slow discharge speed, incomplete unloading, and even bridging or jamming at the bottom of the cone or the outlet. Especially during the unloading of bagged or packaged materials, traditional conical unloaders typically rely on the cone tip to puncture the package. However, lightweight packages are prone to deformation and slippage under stress, making it difficult for the cone tip to effectively puncture the packaging, causing the package to remain at the unloading position and severely impacting production cycle time.

[0004] Meanwhile, after being unpacked and discharged, lightweight food materials typically need to be conveyed to the next process, such as screening, metering, or packaging, via a conveyor belt. However, due to their light particle size, rough surface, or static electricity, these materials are prone to adhesion and accumulation on the conveyor belt surface. When material accumulates in concentrated areas on the conveyor belt, it not only affects the normal operation of the conveyor belt but may also increase the load on the conveyor motor, cause uneven conveying, and consequently affect the stable operation of downstream equipment. Existing technologies for preventing accumulation during the conveying process are relatively simple, relying mostly on manual inspection or passive cleaning, lacking active guidance and uniform distribution structures coordinated with the unloading process, resulting in poor overall coordination. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a lightweight food unloading device to at least partially solve the above technical problems.

[0006] The technical solution adopted by this invention is as follows: This invention proposes a lightweight food unloading device, including a fixed unloading frame, a negative pressure auxiliary unloading assembly, a conveying assembly, and an unloading hoisting assembly. The fixed unloading frame includes a fixed cylinder and an annular support. The fixed cylinder is mounted on the annular support. A conical feeder is provided inside the fixed cylinder. The conical feeder is a hollow cone with a through-hole feed port on its side surface and a feed valve at its bottom end. A one-way rotating shaft is provided inside the fixed cylinder, and a one-way baffle is rotatably mounted on the one-way rotating shaft. The one-way baffle is configured to rotate unidirectionally in the opposite direction to the material receiving valve; the negative pressure auxiliary unloading assembly includes a vacuum pump, a filter, and a negative pressure pipe. The negative pressure pipe is connected to the vacuum pump through the filter, and the other end of the negative pressure pipe is connected to the material receiving valve and the one-way baffle inside the fixed cylinder. The vacuum pump generates a negative pressure environment between the material receiving valve and the one-way baffle inside the fixed cylinder through the filter and the negative pressure pipe; the conveying assembly and the fixed cylinder are vertically aligned; the unloading hoisting assembly includes a hook, and the hook and the fixed cylinder are vertically aligned.

[0007] Furthermore, the conveying assembly includes a conveyor belt and a conveying support. The conveyor belt is mounted on the conveying support, and the conveying support is provided with a conveying auxiliary assembly. The conveying auxiliary assembly includes a material distribution turntable and a material distribution motor. The material distribution motor is mounted on the conveying support, and the material distribution turntable is mounted on the material distribution motor. The material distribution motor and the material distribution turntable are rotatably connected, and the material distribution motor is configured to drive the material distribution turntable to rotate.

[0008] Furthermore, the thickness of the center of the material distribution turntable near the fixed cylinder is greater than the thickness of the edge, and the material distribution turntable near the fixed cylinder forms a slope from the center to the edge.

[0009] Furthermore, the conveying auxiliary component includes a paving roller, a paving slider, a paving chute, and a compression spring. The paving chute is disposed on the conveying support, the paving slider is slidably disposed on the paving chute, the paving roller is rotatably disposed on the paving slider, and the compression spring is disposed between the paving slider and the paving chute.

[0010] Furthermore, the distance between adjacent paving rollers and conveyor belt surfaces varies in a stepped manner, and the distance between the paving rollers and conveyor belt surfaces is inversely proportional to the distance between the paving rollers and the stationary cylinder.

[0011] Furthermore, the negative pressure pipe has a pipe elbow at one end inside the fixed cylinder, the pipe elbow is located above the one-way baffle, and the opening of the pipe elbow faces the one-way baffle.

[0012] Furthermore, the fixed cylinder is provided with a pipe clamp, and the negative pressure pipe is provided on the pipe clamp.

[0013] Furthermore, the unloading and hoisting assembly includes a lifting column and a rotating boom. The rotating boom is rotatably mounted on the lifting column. The rotating boom is equipped with a winch roller and a winch motor. The winch motor drives the winch roller to rotate. A sling is wound around the winch roller, and a hook is located at the end of the sling.

[0014] Furthermore, the bottom of the fixed cylinder is provided with a bottom discharge port, which corresponds to the position of the conveyor belt in the vertical direction.

[0015] Furthermore, the surface of the conveyor belt is provided with a molded anti-slip layer.

[0016] Compared with the prior art, the present invention has the following advantages: By setting up a negative pressure-assisted unloading component, which is designed for lightweight foods or food raw materials that are lightweight, have high friction, and are prone to jamming, a vacuum pump periodically sucks up the conical feeder and the inside or local area of ​​the material bag during the unloading process. This effectively breaks the adhesion and bridging between materials, allowing the lightweight materials to be actively pulled down under negative pressure. This avoids the problem of traditional conical feeders relying solely on their own weight for unloading and the difficulty of the tip piercing the material bag, which leads to poor unloading. This significantly improves the continuity and stability of unloading.

[0017] Through the coordinated use of various auxiliary flow guiding and anti-accumulation structures, lightweight materials are kept in a dispersed and controlled flow state during unloading and conveying, reducing material blockage caused by adhesion and accumulation on the conveyor belt. The overall unloading process is highly automated with minimal human intervention, making it suitable for continuous food production lines. While ensuring unloading efficiency, it also takes into account structural safety and hygiene requirements, demonstrating good practicality and promotional value. Attached Figure Description

[0018] Figure 1 This is a perspective view of the lightweight food unloading device proposed in an embodiment of the present invention; Figure 2 This is a front view of the lightweight food unloading device proposed in an embodiment of the present invention; Figure 3 This is a right view of the lightweight food unloading device proposed in an embodiment of the present invention; Figure 4 This is a top view of the lightweight food unloading device proposed in an embodiment of the present invention; Figure 5 for Figure 4 A cross-sectional view along the AA direction; Figure 6 for Figure 5 Enlarged view at point I; Figure 7 for Figure 5 Enlarged view at point II; Figure 8 for Figure 5 Enlarged view at point III; Figure 9 This is a cross-sectional schematic diagram of the lightweight food unloading device proposed in an embodiment of the present invention; Figure 10 for Figure 9 A magnified view of point IV in the middle.

[0019] Among them, 100, fixed unloading rack; 101, fixed cylinder; 102, annular support; 103, conical feeder; 104, feed port; 105, feed valve; 106, one-way baffle; 107, one-way rotating shaft; 108, bottom unloading port; 109, pipe clamp; 200, negative pressure auxiliary unloading assembly; 201, vacuum pump; 202, filter; 203, negative pressure pipe; 204, pipe elbow; 300, conveying assembly. Components: 301. Conveyor belt; 302. Conveyor support; 400. Conveyor auxiliary components; 401. Material distribution turntable; 402. Material distribution motor; 403. Paver roller; 404. Paver slider; 405. Paver chute; 406. Compression spring; 500. Unloading and hoisting components; 501. Lifting column; 502. Rotary boom; 503. Winching roller; 504. Winching motor; 505. Lifting sling; 506. Hook.

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 invention 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 invention.

[0023] like Figures 1-10As shown, a lightweight food unloading device is mainly used for automated unloading and conveying of lightweight food or lightweight food raw materials. It is particularly suitable for applications where the material bags are lightweight, the internal materials are loose, the friction between them is high, and it is difficult to unload them smoothly by their own weight. Addressing the problems of traditional conical unloaders in existing technologies, such as the cone tip's difficulty in piercing lightweight material bags, bridging, jamming, and discontinuous unloading during the unloading process, this embodiment introduces a negative pressure-assisted unloading structure, combined with multi-stage conveying and spreading components, to effectively ensure the stability and continuity of the unloading process, while preventing lightweight materials from accumulating and sticking on the conveyor belt.

[0024] Specifically, the lightweight food unloading device of this embodiment includes a fixed unloading frame 100, a negative pressure auxiliary unloading component 200, a conveying component 300, and an unloading hoisting component 500. The fixed unloading frame 100, as the core unloading structure, includes a fixed cylinder 101 and an annular support 102. The fixed cylinder 101 is vertically arranged and fixed on the annular support 102, serving to support and define the unloading area. A conical feeder 103 is installed inside the fixed cylinder 101. The conical feeder 103 is a hollow cone structure, with its upper end for contacting the material package and its lower end facing the unloading direction. Uniformly distributed through-holes 104 are provided on the side surface of the conical feeder 103 to provide multiple channels for material to enter the conical feeder during unloading, thus avoiding blockage caused by a single inlet. A feed valve 105 is installed at the bottom of the conical feeder 103 to control the material discharge.

[0025] Inside the fixed cylinder 101, a one-way rotating shaft 107 is also provided, and a one-way baffle 106 is rotatably mounted on the one-way rotating shaft 107. The one-way baffle 106 is configured to allow rotation in the opposite direction to the material taking valve 105. When the material in the material taking valve 105 moves downward under its own gravity, the one-way baffle 106 opens.

[0026] To address the issues of insufficient weight of lightweight materials, difficulty in puncturing material packages, and discontinuous unloading, this embodiment introduces a negative pressure-assisted unloading assembly 200. The negative pressure-assisted unloading assembly 200 includes a vacuum pump 201, a filter 202, and a negative pressure pipe 203. The negative pressure pipe 203 is connected to the vacuum pump 201 via the filter 202, which prevents food dust or fine particles from entering the vacuum pump 201, thus protecting its stable operation. The other end of the negative pressure pipe 203 connects to the interior of the fixed cylinder 101, specifically between the material receiving valve 105 and the one-way baffle 106, thereby creating a localized negative pressure environment in that area. By periodically starting the vacuum pump 201, a suction effect is generated inside the conical feeder 103 and the material bag in contact with it, causing the lightweight material bag to stick together and be pulled under the negative pressure. This helps the conical feeder 103 break the material bag and promotes the material to enter the feeding port 104 smoothly, effectively avoiding material jamming or poor feeding caused by the material being too light. When the vacuum pump 201 is started, the one-way baffle 106 is drawn back into place by the negative pressure to ensure airtightness and prevent the suction of material.

[0027] Furthermore, a pipe elbow 204 is provided at one end of the negative pressure pipe 203 located inside the fixed cylinder 101. The pipe elbow 204 is located above the one-way baffle 106, and its opening faces the one-way baffle 106, so that the negative pressure is more concentrated in the material picking area, avoiding the suction of materials. A pipe clamp 109 is provided on the fixed cylinder 101, and the negative pressure pipe 203 is fixed by the pipe clamp 109 to ensure the stability and reliability of the negative pressure pipe 203 during equipment operation.

[0028] A conveying assembly 300 is provided below the fixed cylinder 101. The conveying assembly 300 includes a conveyor belt 301 and a conveyor support 302. The conveyor belt 301 is mounted on the conveyor support 302 and its position corresponds to the fixed cylinder 101 in the vertical direction. A bottom discharge port 108 is provided at the bottom of the fixed cylinder 101 and its position corresponds to the conveyor belt 301 in the vertical direction, so that the material discharged through the material pick-up valve 105 can fall directly onto the conveyor belt 301 to achieve continuous conveying.

[0029] To address the problem of lightweight materials easily accumulating due to adhesion during transport, this embodiment includes a transport auxiliary component 400 on the transport support 302. The transport auxiliary component 400 includes a material distribution turntable 401, a material distribution motor 402, a paving roller 403, a paving slider 404, a paving chute 405, and a compression spring 406. The material distribution motor 402 is mounted on the transport support 302, and the material distribution turntable 401 is mounted on the output end of the motor. The motor drives the turntable 401 to rotate. The turntable 401 is located near the fixed cylinder 101, and its thickness at the center is greater than its edge thickness on the side closest to the cylinder 101, creating a slope from the center to the edge. After material falls onto the surface of the turntable 401, it is guided to disperse in all directions, preventing material from accumulating in a localized area of ​​the conveyor belt 301.

[0030] Downstream of the material distribution turntable 401, multiple sets of paving rollers 403 are provided. The paving rollers 403 are rotatably mounted via paving sliders 404, which are slidably positioned within paving chutes 405, which are fixed to the conveyor support 302. Compression springs 406 are positioned between the paving sliders 404 and the paving chutes 405, enabling the paving rollers 403 to undergo elastic displacement when compressed by materials. This allows them to adapt to materials of different thicknesses and accumulation states. The distance between adjacent paving rollers 403 and the surface of the conveyor belt 301 varies in a stepped manner, and this distance is inversely proportional to the distance between the paving rollers 403 and the fixed cylinder 101. This ensures that the material is gradually thinned and dispersed in the conveying direction, reducing the risk of adhesion and accumulation of lightweight materials due to static electricity or friction.

[0031] In addition, the surface of the conveyor belt 301 is provided with a molded anti-slip layer, which can increase the friction between the conveyor belt 301 and the lightweight material, prevent the material from slipping as a whole or piling up locally during the conveying process, and further improve the conveying stability.

[0032] Before unloading or when changing material bags, this embodiment uses an unloading hoisting assembly 500 to hoist and position the material bags. The unloading hoisting assembly 500 includes a lifting column 501, a rotating boom 502, a winch roller 503, a winch motor 504, a sling 505, and a hook 506. The rotating boom 502 is rotatably mounted on the lifting column 501. The winch roller 503 and the winch motor 504 are mounted on the rotating boom 502. The winch motor 504 drives the winch roller 503 to rotate. The sling 505 is wound around the winch roller 503, and the hook 506 is located at the end of the sling 505. With this structure, the lightweight food material bags to be unloaded can be accurately hoisted above the fixed cylinder 101, aligning the material bags with the conical feeder 103, thereby ensuring a smooth unloading process.

[0033] In summary, this embodiment solves the problems of lightweight food packaging being difficult to break and insufficient material weight by using a negative pressure assisted unloading structure. Furthermore, through structures such as a material distribution turntable, spreading rollers, and anti-slip conveyor belts, it systematically solves the technical difficulties of lightweight materials being prone to accumulation and adhesion during transportation. The overall structure is reasonably coordinated, and the unloading and transportation processes are continuous and stable, demonstrating good practical value.

[0034] The workflow of this embodiment is as follows: Before unloading the light food or light food raw materials, the material bag is first hoisted and positioned by the unloading hoisting assembly 500. Specifically, the winch motor 504 is started, which drives the winch roller 503 to rotate, so that the sling 505 is gradually raised and lowered, and the hook 506 is connected to the light food material bag to be unloaded; then, by rotating the boom 502 and adjusting the height of the lifting column 501, the material bag is smoothly hoisted above the fixed unloading frame 100, and the bottom of the material bag is aligned with the position of the conical feeder 103 inside the fixed cylinder 101.

[0035] After the material bag is in place, the negative pressure auxiliary unloading assembly 200 is activated. The vacuum pump 201 creates a local negative pressure environment between the material receiving valve 105 and the one-way baffle 106 inside the fixed cylinder 101 through the filter 202 and the negative pressure pipe 203. The negative pressure is directed to the area above the one-way baffle 106 through the pipe bend 204, creating a stable suction airflow inside the conical feeder 103. Under the action of negative pressure, the lightweight material bag is adsorbed and adheres to the surface of the conical feeder 103. The material bag is subjected to continuous pulling, thus overcoming the problem that the material bag is lightweight and difficult to pierce by traditional conical unloaders, causing the material bag to break open. The internal material enters the interior of the conical feeder 103 through multiple material receiving ports 104 on the side surface of the conical feeder 103.

[0036] During the operation of vacuum pump 201, one-way baffle 106 is drawn back into position under negative pressure, ensuring the airtightness of the fixed cylinder 101 and preventing material from being sucked into negative pressure pipe 203. When material enters conical feeder 103, vacuum pump 201 can be stopped intermittently or periodically. At this time, the material moves downward under its own gravity, pushing one-way baffle 106 to open in the opposite direction of feeder valve 105 around one-way shaft 107, and the material is discharged through feeder valve 105. Through the alternating combination of negative pressure and gravity, the material state can be continuously disturbed, avoiding bridging or jamming of material inside conical feeder 103, thereby ensuring a continuous and smooth unloading process.

[0037] Material discharged through the material handling valve 105 falls from the bottom discharge port 108 at the bottom of the fixed cylinder 101 and directly enters the conveyor belt 301 of the conveying assembly 300 located directly below it. The conveyor belt 301 runs continuously under the support of the conveying bracket 302, transporting the discharged lightweight material towards the subsequent process. When the material just falls to the initial position of the conveyor belt 301, the conveying auxiliary assembly 400 starts working simultaneously.

[0038] Specifically, the material distribution motor 402 drives the material distribution turntable 401 to rotate. Since the side of the material distribution turntable 401 near the fixed cylinder 101 forms a slope structure from the center to the edge, the material falling onto its surface is guided to disperse circumferentially during rotation, thereby preventing lightweight materials from accumulating in a localized area of ​​the conveyor belt 301. After initial dispersion, the material moves forward with the conveyor belt 301 and passes through multiple sets of paving rollers 403 in sequence.

[0039] During the conveying process, the paving roller 403 can rotate freely under the support of the paving slider 404 and maintains flexible contact with the conveyor belt 301 under the elastic action of the compression spring 406. When the material accumulates locally or its thickness changes, the paving roller 403 can generate elastic displacement to adapt to the material state. Since the distance between adjacent paving rollers 403 and the conveyor belt 301 changes in a stepped manner, and this distance gradually decreases along the conveying direction, the material is gradually thinned and flattened during the conveying process, thereby effectively breaking up the adhesion between lightweight materials and reducing the risk of accumulation caused by static electricity or friction.

[0040] Meanwhile, the molded anti-slip layer on the surface of the conveyor belt 301 increases the friction between the material and the conveyor belt 301, ensuring that lightweight materials maintain a stable conveying state during the conveying process and preventing overall slippage or rollback. Thus, lightweight food or food raw materials complete the entire process from package breaking and unloading to uniform conveying.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lightweight food discharge device characterized by: The utility model relates to a kind of fixed discharge frame (100), negative pressure auxiliary discharge component (200), conveying component (300) and discharge hoisting component (500), the fixed discharge frame (100) includes fixed cylinder (101) and annular support (102), the fixed cylinder (101) is located annular support (102), the fixed cylinder (101) inside is equipped with conical extractor (103), the conical extractor (103) is hollow cone, the conical extractor (103) side surface is equipped with through material taking port (104), the conical extractor (103) bottom end is equipped with material taking valve (105); The fixed cylinder (101) is equipped with one-way rotating shaft (107) inside, one-way baffle (106) is rotatably arranged on one-way rotating shaft (107), one-way baffle (106) is arranged to rotate in the opposite direction of material taking valve (105); The negative pressure auxiliary discharge component (200) includes vacuum pump (201), filter (202) and negative pressure pipe (203), the negative pressure pipe (203) is connected on vacuum pump (201) by filter (202), another end of the negative pressure pipe (203) is communicated to between material taking valve (105) and one-way baffle (106) inside fixed cylinder (101), vacuum pump (201) generates negative pressure environment between material taking valve (105) and one-way baffle (106) inside fixed cylinder (101) by filter (202) and negative pressure pipe (203). The position of conveying component (300) and fixed cylinder (101) corresponds in vertical direction, and the discharge hoisting component (500) includes lifting hook (506), and the position of lifting hook (506) and fixed cylinder (101) corresponds in vertical direction.

2. A lightweight food discharge device according to claim 1, characterized in that: The conveying component (300) includes conveying belt (301) and conveying support (302), the conveying belt (301) is arranged on the conveying support (302), the conveying support (302) is equipped with conveying auxiliary component (400), the conveying auxiliary component (400) includes material distributing turntable (401) and material distributing motor (402), the material distributing motor (402) is arranged on the conveying support (302), the material distributing turntable (401) is arranged on the material distributing motor (402), the material distributing motor (402) and the material distributing turntable (401) are rotatably connected, and the material distributing motor (402) is configured to drive the material distributing turntable (401) to rotate.

3. A lightweight food discharge device according to claim 2, characterized in that: The side of the material distributing turntable (401) close to the fixed cylinder (101) has a thickness greater than the edge thickness from the center to the edge.

4. The lightweight food discharge apparatus according to claim 2, characterized by: The conveying auxiliary component (400) includes a paving roller (403), a paving slider (404), a paving chute (405), and a compression spring (406). The paving chute (405) is mounted on the conveying support (302), the paving slider (404) is slidably mounted on the paving chute (405), the paving roller (403) is rotatably mounted on the paving slider (404), and the compression spring (406) is located between the paving slider (404) and the paving chute (405).

5. A lightweight food discharge device according to claim 4, characterized in that: The distance between adjacent surfaces of the paving roller (403) and the conveyor belt (301) varies in a stepped manner, and the distance between the surfaces of the paving roller (403) and the conveyor belt (301) is inversely proportional to the distance between the paving roller (403) and the fixed cylinder (101).

6. The lightweight food discharge apparatus according to claim 1, characterized by: The negative pressure pipe (203) has a pipe elbow (204) at one end inside the fixed cylinder (101). The pipe elbow (204) is located above the one-way baffle (106), and the opening of the pipe elbow (204) faces the one-way baffle (106).

7. A lightweight food discharge device according to claim 6, characterized in that: The fixed cylinder (101) is provided with a pipe clamp (109), and the negative pressure pipe (203) is provided on the pipe clamp (109).

8. The lightweight food discharge apparatus according to claim 1, characterized by: The unloading and hoisting assembly (500) includes a lifting column (501) and a rotating boom (502). The rotating boom (502) is rotatably mounted on the lifting column (501). The rotating boom (502) is equipped with a winch roller (503) and a winch motor (504). The winch motor (504) drives the winch roller (503) to rotate. A sling (505) is wound on the winch roller (503). A hook (506) is located at the end of the sling (505).

9. The lightweight food discharge apparatus according to claim 2, characterized by: The bottom of the fixed cylinder (101) is provided with a bottom discharge port (108), which corresponds to the position of the conveyor belt (301) in the vertical direction.

10. The lightweight food discharge apparatus according to claim 2, characterized by: The surface of the conveyor belt (301) is provided with a molded anti-slip layer.

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