A food bagging prod hopper
The design of a three-stage conical hopper and a coaxial feeding cylinder solves the problem of material blockage during food bagging, achieving smooth material flow and long equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN XUANLONG INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-07-24
AI Technical Summary
In the current food bagging process, materials are prone to forming arches or bridging in the discharge channel, leading to blockages and affecting production efficiency and food safety.
It adopts a three-stage conical hopper structure and a coaxial chuck cylinder design to form a continuous and smooth material channel. The chuck head precisely disrupts the balance of shear force and friction between materials, thus avoiding blockage.
It significantly improves the flowability of materials, reduces the degree of material compaction in the outlet area, reduces the probability of blockage, and extends the service life of the equipment.
Smart Images

Figure CN224546501U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of food bagging technology, specifically to a material hopper for food bagging. Background Technology
[0002] In food processing and packaging production lines, automated quantitative bagging of materials is a common process. This process typically relies on gravity or auxiliary feeding devices to continuously and stably feed materials from storage bins or upstream conveying equipment into the discharge port of the packaging machine, thus entering the packaging bag and completing the weighing, bagging, and sealing operations. However, in actual production, due to the generally high moisture content and viscosity of food materials, they are prone to poor flow, bridging, arching, or even complete blockage in the discharge channel.
[0003] Especially in the discharge area, materials accumulate layer by layer under gravity. The bottom material bears the static pressure of the upper layer, and combined with the friction between the bottom material and the inner wall of the hopper, as well as the cohesive force between the material particles, a stable "arch" structure easily forms at the outlet, preventing the material from falling normally. This blockage not only causes production interruptions and reduced packaging efficiency, but may also introduce contamination risks due to manual cleaning, affecting food safety and the level of production automation.
[0004] While traditional cylindrical or single-stage conical hoppers can guide material flow to some extent, they are poorly adapted to materials with high humidity and a tendency to stick together, and cannot effectively alleviate the high-speed impact and compaction of materials at the outlet. In addition, when using vibrators to disperse materials, problems such as incomplete clearing of blockages, inconvenient maintenance, or easy damage to the inner wall of the hopper often occur when the vibrator is started. Summary of the Invention
[0005] The technical problem to be solved by this application is to overcome the existing defects and provide a feeding hopper for food bagging, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, this application provides the following technical solution: a hopper for bagging food, comprising a hopper, wherein the hopper is composed of a primary hopper, a secondary hopper and a tertiary hopper, wherein the primary hopper, the secondary hopper and the tertiary hopper are arranged sequentially from top to bottom;
[0007] The secondary hopper is equipped with a material-pumping cylinder, and the telescopic end of the material-pumping cylinder is connected to a material-pumping head, which is coaxially arranged with the tertiary hopper.
[0008] As a preferred technical solution of this application, the primary hopper, secondary hopper and tertiary hopper all adopt a conical structure.
[0009] As a preferred technical solution of this application, a side baffle is provided on one side of the primary hopper, and an arc-shaped plate is provided in the center of the side baffle. The material-pumping cylinder is coaxially arranged with the arc-shaped plate.
[0010] As a preferred technical solution of this application, a cylinder mounting plate is fixedly connected to the upper surface of the secondary hopper, and the material-pumping cylinder is mounted on the cylinder mounting plate.
[0011] As a preferred technical solution of this application, the primary hopper adopts a semi-conical surface structure.
[0012] As a preferred technical solution of this application, a support plate is provided on the outer side of the secondary hopper, and support blocks are symmetrically arranged on the lower surface of the support plate.
[0013] Compared with existing technologies, the beneficial effects of this application are as follows: This application adopts a three-stage conical structure consisting of a primary hopper, a secondary hopper, and a tertiary hopper connected in series, forming a continuous and smooth converging material channel. This allows for the step-by-step guidance and concentration of falling materials, significantly reducing material deviation, accumulation, and wall adhesion during the flow process. The multi-stage conical design effectively disperses the static pressure of the material, reduces the degree of material compaction in the outlet area, fundamentally reduces the probability of "bridging" or "arching," and greatly improves the natural flowability of the material.
[0014] The material-pumping cylinder and the material-pumping head are coaxially arranged along the axis of the three-stage hopper, ensuring that the material-pumping action is performed along a straight line from the center. In the event of a blockage, the material-pumping head, driven by the cylinder, can vertically insert into the outlet area where the material is most prone to arching, precisely disrupting the balance of shear and friction forces between the materials, powerfully breaking the arch and significantly clearing the blockage. The coaxial design avoids scraping and wear on the inner wall of the hopper caused by eccentric movement, extending the service life of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the structure of this application. Figure 3 ;
[0018] Figure 4 This is a schematic diagram of the structure of this application. Figure 4 .
[0019] In the diagram: 1. Material-pouring cylinder, 2. Side baffle, 3. Cylinder mounting plate, 4. Hopper, 4a. Primary hopper, 4b. Secondary hopper, 4c. Tertiary hopper, 5. Arc plate, 6. Support block, 7. Support plate, 8. Material-pouring head. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0021] Please see Figure 1-4 This application provides a technical solution: a food bagging hopper, the main body of which is a hopper 4 welded together from a primary hopper 4a, a secondary hopper 4b, and a tertiary hopper 4c. All three are conical structures and connected from top to bottom. Among them, the primary hopper 4a and the secondary hopper 4b adopt a semi-conical surface structure.
[0022] A material hopper for food bagging is welded together from three parts: a primary hopper 4a, a secondary hopper 4b, and a tertiary hopper 4c, forming a continuous material channel running from top to bottom with a smooth inner wall. All three parts adopt a conical structure.
[0023] Among them, the primary hopper 4a and the secondary hopper 4b innovatively adopt a semi-conical surface structure.
[0024] When the material flows in the conical hopper 4, the conical inclined surface can continuously guide and converge the material, causing it to move in an orderly manner toward the central outlet.
[0025] The multi-stage series design breaks down the descent height into three segments, effectively reducing the falling speed and impact energy of the material at the final outlet, and preventing the material from being violently compacted at the bottom due to excessive kinetic energy.
[0026] Secondly, the multi-stage conical structure greatly improves material flowability, reduces friction and adhesion between the material and the wall, and significantly reduces the probability of clogging from the source.
[0027] The graded descent effectively disperses the static pressure generated by material accumulation, making the material reaching the 4c outlet of the third-stage hopper more loose and less prone to bridging.
[0028] The semi-conical structure of the primary hopper 4a provides vertical space for the installation of the material-push cylinder 1, allowing the material-push cylinder 1 to be set coaxially with the hopper.
[0029] A horizontal cylinder mounting plate 3 is welded to the upper surface of the secondary hopper 4b. The material-push cylinder 1 is vertically mounted on the cylinder mounting plate 3 by bolts. A side baffle 2 is installed on the side of the primary hopper 4a. The side baffle 2 has a circular hole in its center and an arc-shaped plate 5 is welded on it. During installation, the cylinder body of the material-push cylinder 1 passes through the arc-shaped plate 5 and remains coaxial with the arc-shaped plate 5, ensuring the verticality and stability of the cylinder.
[0030] A horizontal cylinder mounting plate 3 is welded to the upper surface of the secondary hopper 4b to provide a mounting base for the material-pumping cylinder 1. Next, a side baffle 2 is installed on the side of the primary hopper 4a, with a pre-drilled circular hole in its center and an arc-shaped plate 5 that matches the outer diameter of the cylinder body is welded on.
[0031] During installation, the cylinder body of the feeding cylinder 1 is located inside the arc-shaped plate 5. Ensure the verticality of the cylinder body throughout its stroke and align it with the center line of the three-stage hopper 4c.
[0032] The arc-shaped plate 5 ensures precise alignment between the material feeding head 8 and the three-stage hopper 4c, preventing wear on the inner wall of the hopper due to eccentricity or reducing the unblocking effect. The coaxial design allows the force to accurately reach the center of the blockage, effectively breaking the arch.
[0033] The material-pumping head 8 is detachably connected to the piston rod end of the material-pumping cylinder 1 via threads or flanges. The detachable connection facilitates the replacement of material-pumping heads 8 with different shapes or materials according to different materials, enhancing the versatility and adaptability of the equipment. Its shape can be selected according to the characteristics of the material; for example, a cylindrical shape is suitable for general material pumping, while a conical shape is more conducive to wedging and breaking up solid material arches.
[0034] Driven by the cylinder, the material feeding head 8 reciprocates linearly along the axis of the three-stage hopper 4c. When it moves downward, it inserts itself like a piston into the outlet of the deepest and most easily clogged area of the material, using mechanical force to forcibly disrupt the balance formed by the shear force and friction of the material. The extension length of the material feeding head 8 exceeds the outlet but does not exceed the depth of the material bag at the outlet.
[0035] A support plate 7 is welded to the outer wall of the secondary hopper 4b, and two support blocks 6 are symmetrically welded below the support plate 7.
[0036] A support plate 7 is welded to the outer wall of the secondary hopper 4b. The strip holes on the support plate 7 adjust the position of the device and provide an installation position for the installation of this application. The support block 6 is fixed to the equipment frame by bolts, thereby providing stable support for the entire material hopper below.
[0037] In operation: Material falls from the previous stage equipment into the primary hopper 4a, is guided by the secondary hopper 4b, and converges into the tertiary hopper 4c for discharge. When clearing blockages is required, the chuck cylinder 1 extends, pushing the chuck head 8 to quickly insert downwards into the material in the tertiary hopper 4c, breaking any arched structures that may have formed. The cylinder then retracts. This process can be automatically controlled by a PLC, running intermittently to ensure continuous material flow.
[0038] In use: the material falls from the upstream equipment into the primary hopper 4a and falls naturally by gravity; then, the material is guided and concentrated by the secondary hopper 4b, which effectively prevents the material from shifting or accumulating during the flow; finally, the material gathers at the lowest tertiary hopper 4c, ready to be discharged to the downstream process or conveying device through the discharge port.
[0039] When materials have high moisture content, fine particles, or poor flowability, they are prone to forming "bridging" or "arching" blockages within the three-stage hopper 4c, leading to poor or even complete discharge. In this situation, the operator applies electricity, extending the material-push cylinder 1. The cylinder piston rod drives the material-push head 8 vertically downwards, inserting it into the material layer within the three-stage hopper 4c. This effectively breaks up any existing arched structures or loosens the accumulated material, restoring the material to its free-flowing state.
[0040] After completing the material clearing action, the material clearing cylinder 1 automatically retracts to its initial standby position, preparing for the next unblocking operation.
[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A food bagging hopper, comprising a hopper (4), characterized in that: The hopper (4) consists of a primary hopper (4a), a secondary hopper (4b) and a tertiary hopper (4c), which are arranged sequentially from top to bottom. The secondary hopper (4b) is equipped with a material-pumping cylinder (1), and the telescopic end of the material-pumping cylinder (1) is connected to a material-pumping head (8). The material-pumping head (8) is coaxially arranged with the tertiary hopper (4c).
2. The feeding hopper for food bagging according to claim 1, characterized in that: The primary hopper (4a), secondary hopper (4b), and tertiary hopper (4c) all adopt a conical structure.
3. The feeding hopper for food bagging according to claim 1, characterized in that: A side baffle (2) is provided on one side of the primary hopper (4a), and an arc plate (5) is provided in the center of the side baffle (2). The material-pumping cylinder (1) is coaxially arranged with the arc plate (5).
4. The feeding hopper for food bagging according to claim 1, characterized in that: The upper surface of the secondary hopper (4b) is fixed with a cylinder mounting plate (3), and the material-pumping cylinder (1) is mounted on the cylinder mounting plate (3).
5. A feeding hopper for food bagging according to claim 1 or 2, characterized in that: The primary hopper (4a) adopts a semi-conical structure.
6. The feeding hopper for food bagging according to claim 4, characterized in that: The secondary hopper (4b) is provided with a support plate (7) on its outer side, and support blocks (6) are symmetrically arranged on the lower surface of the support plate (7).