Multi-column high-speed four-edge powder strip bag packaging machine

Abstract

The invention relates to the technical field of packaging machines, in particular to a multi-column high-speed four-edge powder strip bag packaging machine which comprises supporting frames, box bodies are arranged on the supporting frames, stirring feeding bins and film feeding frames are arranged on the top faces of the box bodies, a heat sealing mechanism is arranged on the top of one face of each box body, and a plain end cutting frame is arranged in the middle of one face of each box body; the interlocking and shunting assembly is arranged in the middle of the top of the box body, and one side of the interlocking and shunting assembly communicates with the bottom of the stirring and feeding bin; and the staggered cleaning assembly is arranged on one side of the box body. Compared with the prior art, the interlocking flow dividing assembly is arranged to be matched with the staggered cleaning assembly, the cleaning process and the production time sequence are completely staggered, production interruption is avoided, the equipment utilization rate and the overall efficiency are improved, and the interlocking flow dividing assembly and the staggered cleaning assembly are matched to form a production-cleaning closed-loop system.

Description

Technical Field

[0001] This invention relates to the field of packaging machine technology, and in particular to a multi-row high-speed four-sided powder strip bag packaging machine. Background Technology

[0002] Powder strip bag packaging machines are a type of automated packaging equipment widely used in the food, pharmaceutical, health product, and chemical industries. Their main function is to dispense powdered materials into strip bags according to a set dosage and then form four-side sealed bags through heat sealing or cold sealing processes. With the increasing market demand for small-packaged powder products, multi-row high-speed powder strip bag packaging machines are gradually becoming the mainstream equipment, enabling parallel production of multiple rows within a limited space and significantly improving production efficiency.

[0003] In the prior art, Chinese patent document CN118419321A, entitled "A Double Coating Processing Device Based on Slow-Release Compound Feed Additives," proposes a device with a discharge hopper, a decoating mold, and auxiliary blocks. The semi-circular design of the discharge hopper effectively guides the material in the mixing hopper to the coating mold, ensuring accurate entry of the material into the coating process and preventing overflow or accumulation. The inverted triangular shape of the coating mold matches the shape of the discharge hopper, ensuring smooth coating during the coating process and preventing misalignment or folding, thus improving coating quality. However, like traditional methods, traditional equipment lacks an effective mechanical interlocking mechanism. The feeding path usually relies on simple valves or manual switching operations, which can easily lead to material residue and mixing, causing cross-contamination and affecting product hygiene, safety, and quality consistency. This problem is particularly prominent in high-requirement industries such as food and pharmaceuticals, increasing quality risks and the probability of market recalls. Secondly, in terms of cleaning and maintenance, traditional designs often require a complete shutdown for cleaning, relying on manual disassembly and cleaning or simple rinsing, which cannot be separated from the production sequence, resulting in a significant decrease in equipment utilization, frequent production interruptions, and incomplete cleaning. Residual powder can easily cause blockage, deterioration, or bacterial growth, further aggravating equipment wear and failure rate and increasing maintenance costs. Therefore, this application discloses a multi-row high-speed four-sided powder strip bag packaging machine. Summary of the Invention

[0004] In view of this, the purpose of this invention is to propose a multi-row high-speed four-sided powder strip bag packaging machine to solve the problems of serious cross-contamination risk and production interruption in traditional powder strip bag packaging machines, resulting in insufficient hygiene and safety, low equipment utilization and high maintenance costs, making it difficult to meet the continuous and efficient production needs of high-standard industries such as food and pharmaceuticals.

[0005] To achieve the above objectives, the present invention provides a multi-row high-speed four-sided powder strip bag packaging machine, comprising: several support frames, each support frame having a housing, each housing having a mixing and feeding bin and a film feeding frame on its top surface, a heat sealing mechanism on the top of one side of the housing, a flat-mouth cutting frame in the middle of one side of the housing, and a discharge guide plate on the bottom of one side of the housing; a tension roller is also provided between the heat sealing mechanism and the flat-mouth cutting frame, the tension roller being used to pull the strip film on the film feeding frame;

[0006] An interlocking diversion assembly is provided at the top center of the housing. One side of the interlocking diversion assembly is connected to the bottom of the mixing and feeding hopper. The interlocking diversion assembly is driven by the material flow pressure to perform dual-path interlocking switching. A discharge pipe is provided at the bottom of the interlocking diversion assembly for feeding powder.

[0007] A staggered cleaning component is disposed on one side of the housing and connected to the other side of the interlocking diversion component, for performing staggered cleaning after feeding is completed and before the next feeding.

[0008] Preferably, the heat sealing mechanism includes fixed plates fixedly installed on both sides of the housing, the two fixed plates being arranged opposite each other, and two guide posts being provided on both fixed plates. Movable plates are movably installed on the opposite surfaces of the two fixed plates, and the two movable plates are slidably installed on the guide posts. Cylinders are provided on the opposite sides of the two fixed plates, and the telescopic ends of the cylinders are fixedly connected to one side of the movable plate. The two cylinders are used to push the two movable plates closer to or further apart from each other. Two first heat sealing posts are provided on the opposite surfaces of the two movable plates, and a second heat sealing post is provided at the bottom of the opposite surfaces of the movable plates.

[0009] Preferably, the first heat-sealing post is used on both sides of the sealing strip, and the second heat-sealing post is used on the top and bottom sides of the sealing strip.

[0010] Preferably, the interlocking diversion assembly includes a diversion pipe fixedly installed in the middle of the top of the housing, a first feed pipe is provided on one side of the diversion pipe, a second feed pipe is provided on the other side of the diversion pipe, a discharge pipe is provided at the bottom of the middle of the diversion pipe, the discharge pipe is connected to the discharge pipe, and a connecting pipe is provided at the bottom of the mixing and feeding hopper, the connecting pipe being connected to the first feed pipe.

[0011] Preferably, a positioning frame is provided at the top of the inside of the diversion pipe. The positioning frame is arranged in a door shape. A sliding rod is slidably installed at the bottom of the positioning frame. A sealing plate is fixedly sleeved on both sides of the sliding rod. The sealing plate is used to block the first feed pipe or the second feed pipe. In the initial state, the first feed pipe is set to the blocked state, and the second feed pipe is set to the normally open state.

[0012] Preferably, a limiting block is fixedly sleeved in the middle of the sliding rod, and a return spring is provided at both ends of the limiting block. The return spring is movably sleeved on the outer surface of the sliding rod, and the other ends of the two return springs are respectively connected to the bottom sides of the positioning frame.

[0013] Preferably, a stroke groove is provided on one side of the positioning frame, a rotating frame is rotatably mounted on the middle of the limiting block, a slider is provided on the side of the rotating frame away from the limiting block, the slider is slidably mounted inside the stroke groove, a connecting plate is provided on one side of the slider, a connecting rod is provided on the side of the connecting plate away from the slider, the connecting rod is provided through the diverter pipe, and a flipping sealing disc is rotatably mounted on one side of the inside of the first feed pipe. The flipping sealing disc is initially set to an inclined state, which allows for normal material discharge.

[0014] Preferably, one side of the connecting rod extends through the connecting pipe, and a connecting rod is provided at the bottom of one side of the connecting rod to connect with one side of the flipping sealing disc. When powder enters the first feed pipe from the connecting pipe, it pushes the sealing plate inside the first feed pipe to open the first feed pipe. The sliding rod moves to drive the connecting rod to rise and drive the flipping sealing disc to seal the connecting pipe.

[0015] Preferably, the misaligned cleaning assembly includes a blower box fixedly installed on one side of the housing, and a blower duct connected to the second feed pipe is provided on one side of the blower box.

[0016] Preferably, the top of the feeding pipe is provided with a conical receiving hopper that is connected to the discharge pipe, and dust suction pipes are also provided on both sides of the feeding pipe. The dust suction pipes have a U-shaped cross-section and several fine dust suction slots at the bottom. The bottom of the feeding pipe is provided with an inclined feeding nozzle, and the bottom of the dust suction pipe is engaged with the inclined opening of the inclined feeding nozzle.

[0017] The beneficial effects of this invention are:

[0018] 1. This multi-row high-speed four-sided powder strip bag packaging machine features an interlocking diversion component and a staggered cleaning component. The interlocking diversion component uses material flow pressure to drive the sliding rod and sealing plate to automatically switch the feeding path, ensuring that the first and second feeding pipes are mutually exclusive. This fundamentally eliminates the risk of cross-contamination caused by simultaneous feeding from two paths, improving product hygiene, safety, and quality consistency. Its spring reset mechanism ensures high response speed and repeatability, requiring no external energy or control commands, achieving low-energy operation, reducing operating costs and maintenance complexity. The staggered cleaning component... The system injects compressed air or cleaning fluid through the air box and duct, and performs high-pressure flushing on key parts such as the diversion pipe, sliding rod, and discharge pipe during production breaks to effectively remove residual powder and prevent blockage and deterioration. The cleaning process is completely staggered from the production sequence, avoiding production interruptions and improving equipment utilization and overall efficiency. The two work together to form a "production-cleaning" closed-loop system, which not only ensures the stability and reliability of continuous production, but also extends the equipment life through automated cleaning and maintenance. It is suitable for industries with high hygiene standards such as food and pharmaceuticals, and achieves the goals of efficient, environmentally friendly, and intelligent production.

[0019] 2. This multi-row high-speed four-sided powder strip bag packaging machine achieves flow sensing and precise linkage control by integrating a stroke groove, rotating frame, slider, connecting plate, connecting rod, and flip-sealing disc in the connecting pipe within an interlocking diversion assembly. The axial displacement of the sliding rod is converted into rotational motion via the rotating frame and stroke groove, which then drives the connecting plate and connecting rod to rise and fall, ultimately driving the flip-sealing disc to rotate and seal or open the connecting pipe, forming a closed-loop feedback. This structure automatically limits flow to prevent overload when material flow is too high and resets to ensure smooth flow when flow is insufficient, significantly improving system response speed and operational stability. The mechanical interlock mechanism eliminates the risk of cross-contamination from dual-feed systems, ensuring product hygiene and safety.

[0020] 3. This multi-row high-speed four-sided powder strip bag packaging machine features a feeding pipe with a conical receiving hopper that smoothly connects to the discharge pipe. Its tapered structure guides the material to concentrate and smoothly transition into the feeding pipe, significantly reducing impact and splashing, ensuring material flow and preventing blockages. The dust suction pipe is arranged along both sides of the feeding pipe, and its U-shaped cross-section and evenly distributed dust suction slots at the bottom can capture dust generated during the falling process in real time. The dust is quickly sucked up by the external negative pressure system, effectively suppressing dust diffusion, improving the air quality of the operating environment, reducing health risks, and meeting environmental protection requirements. The inclined opening of the tilted feeding nozzle optimizes the discharge trajectory, allowing the material to be discharged at a controllable speed and direction, avoiding spillage or accumulation. At the same time, the bottom of the dust suction pipe is clamped at its opening, forming a sealing barrier to prevent dust overflow and external pollution intrusion. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0024] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the planar structure of the interlocking current splitter assembly of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the interlocking current splitter component of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0029] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point C;

[0030] Figure 9 This is a schematic diagram of the feed tube structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the planar structure of the feed tube of the present invention.

[0032] The diagram is marked as follows:

[0033] 1. Support frame; 2. Box body; 3. Mixing and feeding hopper; 4. Film feeding frame; 5. Heat sealing mechanism; 6. Flat cutting frame; 7. Discharge guide plate; 8. Tension roller; 9. Fixing plate; 10. Cylinder; 11. Guide column; 12. Movable plate; 13. First heat sealing column; 14. Second heat sealing column; 15. Connecting pipe; 16. Diverting pipe; 17. First feed pipe; 18. Second feed pipe; 19. Discharge pipe; 2 0. Feeding pipe; 21. Positioning frame; 22. Sliding rod; 23. Sealing plate; 24. Limiting block; 25. Return spring; 26. Rotating frame; 27. Stroke groove; 28. Slider; 29. ​​Linking rod; 30. Tilting sealing disc; 31. Connecting rod; 32. Conical receiving hopper; 33. Inclined feeding nozzle; 34. Dust suction pipe; 35. Dust suction trough; 36. Air box; 37. Air duct; 38. Linking plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0035] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] like Figures 1 to 10As shown, a multi-row high-speed four-sided powder strip bag packaging machine includes several support frames 1, each with a housing 2. The top surface of each housing 2 is equipped with a mixing and feeding bin 3 and a film feeding frame 4. A heat sealing mechanism 5 is located at the top of one side of the housing 2, a flat-mouth cutting frame 6 is located in the middle of one side of the housing 2, and a discharge guide plate 7 is located at the bottom of one side of the housing 2. A tension roller 8 is also installed between the heat sealing mechanism 5 and the flat-mouth cutting frame 6, used to pull the strip film on the film feeding frame 4. An interlocking diversion component is located at the top middle of the housing 2, with one side connected to the bottom of the mixing and feeding bin 3. The interlocking diversion component is driven by material flow pressure and performs dual-path interlocking switching. A discharge pipe 20 is located at the bottom of the interlocking diversion component for feeding powder. A staggered cleaning component is located on one side of the housing 2 for staggered cleaning... The component is connected to the other side of the interlocking diversion component for staggered cleaning after feeding and before the next feeding. The heat sealing mechanism 5 includes fixed plates 9 fixedly installed on both sides of the box 2. The two fixed plates 9 are arranged opposite each other. Two guide columns 11 are provided on the two fixed plates 9. Movable plates 12 are movably installed on the opposite surfaces of the two fixed plates 9. The two movable plates 12 are slidably installed on the guide columns 11. Cylinders 10 are provided on the opposite sides of the two fixed plates 9. The telescopic ends of the cylinders 10 are fixedly connected to one side of the movable plate 12. The two cylinders 10 are used to push the two movable plates 12 closer or further apart. Two first heat sealing columns 13 are provided on the opposite surfaces of the two movable plates 12. Second heat sealing columns 14 are provided at the bottom of the opposite surfaces of the movable plates 12. The first heat sealing columns 13 are used for the two sides of the sealing strip, and the second heat sealing columns 14 are used for the upper and lower sides of the sealing strip.

[0037] The powder in the mixing and feeding hopper 3 enters the interlocking diversion component under gravity or auxiliary conveying. Driven by the material flow pressure, this component automatically executes logical actions—when the main powder flows through, its pressure pushes the internal valve core to move, opening the passage to the feed pipe 20 on one hand, and mechanically locking the backup passage to the misalignment cleaning component on the other, thus achieving a continuous supply of pure powder. The powder is evenly filled onto the strip film led out from the film feeding frame 4 via the feed pipe 20. Under the continuous traction of the tension roller 8, the strip film smoothly passes through the heat sealing mechanism 5 with constant tension. At this time, the cylinder 10 operates according to a preset program, pushing the movable plate 12 to slide precisely along the guide column 11, causing the first heat sealing column 13 and the second heat sealing column 14 installed on the movable plate 12 to simultaneously press against the film material; the first heat sealing column... The two longitudinal sides of the high-efficiency sealing strip 13 form a continuous bag tube, while the second heat-sealing column 14 follows closely to seal the bottom edge of each bag, leaving the top surface open to receive powder material. Then, as it continues to be pulled downwards, the second heat-sealing column 14 simultaneously seals the top of the already filled bag and the bottom of the unfilled bag, thus efficiently and reliably completing the four-sided sealing, forming individual sealed packaging bags. After heat sealing, the film strip is further pulled to the flat-mouth cutting frame 6, where the cutting blade cuts the continuous bag tube into individual finished bags. Finally, the finished bags are orderly discharged and collected via the discharge guide plate 7. During the intervals of the entire production cycle or before changing production, a staggered cleaning procedure can be triggered. — The interlocking diversion component switches the path, and the cleaning fluid or high-pressure airflow flows in from the misaligned cleaning component to backwash the pipeline, valve chamber and discharge nozzle that have just been conveyed with powder. All residues are directly blown into the forming area of ​​the mold that has not yet been coated or into a dedicated collection port, thus achieving seamless connection and no interference between production and cleaning. This process is interconnected, and the whole process reflects a high degree of automation and collaboration.

[0038] like Figures 3 to 8 As shown, the interlocking diversion assembly includes a diversion pipe 16 fixedly installed in the middle of the top of the housing 2. A first feed pipe 17 is provided on one side of the diversion pipe 16, and a second feed pipe 18 is provided on the other side of the diversion pipe 16. A discharge pipe 19 is provided at the bottom of the middle part of the diversion pipe 16. A discharge pipe 20 is connected to the discharge pipe 19. A connecting pipe 15 is provided at the bottom of the mixing and feeding bin 3. The connecting pipe 15 is connected to the first feed pipe 17. A positioning frame 21 is provided at the top inside the diversion pipe 16. The positioning frame 21 is arranged in a U-shape, and the bottom of the positioning frame 21 slides. A sliding rod 22 is installed, and sealing plates 23 are fixedly sleeved on both sides of the sliding rod 22. The sealing plates 23 are used to block the first feed pipe 17 or the second feed pipe 18. In the initial state, the first feed pipe 17 is set to the blocked state, and the second feed pipe 18 is set to the normally open state. A limiting block 24 is fixedly sleeved in the middle of the sliding rod 22. A return spring 25 is provided at both ends of the limiting block 24. The return spring 25 is movably sleeved on the outer surface of the sliding rod 22. The other ends of the two return springs 25 are respectively connected to the bottom sides of the positioning frame 21.

[0039] Powder in the mixing and feeding hopper 3 enters the first feed pipe 17 of the interlocking diversion assembly through the connecting pipe 15 under gravity or auxiliary conveying. Initially, due to the preload of the return spring 25, the sliding rod 22 is in a specific position, causing the sealing plate 23 to block the first feed pipe 17, while the second feed pipe 18 remains open. When the powder begins to flow and generates sufficient pressure, the fluid pressure acts on the sealing plate 23 at one end of the sliding rod 22, pushing the return spring 25 on the compression side of the sliding rod 22 to move axially. The movement of the sliding rod 22 causes the sealing plate 23 on it to move synchronously, thereby releasing the blockage of the first feed pipe 17 and blocking the second feed pipe 18, achieving automatic route switching. At this time, the powder flows smoothly through the first feed pipe 17 into the main body of the diversion pipe 16, and finally... The material is discharged from the discharge pipe 19 and precisely conveyed to the packaging station through the feed pipe 20. When the mixing and feeding hopper 3 stops feeding and the fluid pressure disappears, the compressed return spring 25 releases its stored energy, pushing the sliding rod 22 and the sealing plate 23 to accurately return to the initial position, re-sealing the first feed pipe 17 and opening the second feed pipe 18, preparing for the next feeding or standby operation (such as cleaning fluid injection). The entire process is fully automatic and requires no external control commands. Its pure mechanical interlocking characteristics ensure absolute synchronization and precision of the switching action, eliminating the risk of simultaneous feeding from two paths. The spring return mechanism ensures the system's high response speed and repeatability, thereby improving production efficiency while greatly ensuring the hygiene, safety and quality consistency of the products, and significantly reducing the energy consumption and maintenance complexity of the equipment.

[0040] like Figures 6 to 8 As shown, a stroke groove 27 is provided on one side of the positioning frame 21. A rotating frame 26 is rotatably mounted on the middle of the limiting block 24. A slider 28 is provided on the side of the rotating frame 26 away from the limiting block 24. The slider 28 is slidably mounted inside the stroke groove 27. A connecting plate 38 is provided on one side of the slider 28. A connecting rod 29 is provided on the side of the connecting plate 38 away from the slider 28. The connecting rod 29 passes through the diversion pipe 16. A flipping sealing disc 30 is rotatably mounted on one side of the inside of the first feed pipe 17. The initial state of the rotating sealing disc 30 is set to an inclined position, which can discharge material normally. One side of the connecting rod 29 is set through the connecting pipe 15, and a connecting rod 31 is set at the bottom of one side of the connecting rod 29 to connect to one side of the rotating sealing disc 30. When the powder enters the first feed pipe 17 from the connecting pipe 15, it pushes the sealing plate 23 inside the first feed pipe 17 to open the first feed pipe 17. The sliding rod 22 moves to drive the connecting rod 29 to rise and drive the rotating sealing disc 30 to seal the connecting pipe 15.

[0041] Powder enters the first feed pipe 17 from the mixing and feeding hopper 3 through the connecting pipe 15; the flow pressure of the powder acts on the sealing plate 23 inside the first feed pipe 17, pushing it to move, thereby opening the channel of the first feed pipe 17 to allow material to pass through; the movement of the sealing plate 23 drives the sliding rod 22 to move axially, and the limiting block 24 on the sliding rod 22 moves accordingly; the rotating frame 26 in the middle of the limiting block 24 rotates under the guidance of the slider 28 and the stroke groove 27, converting linear motion into rotational motion; the movement of the slider 28 is transmitted to the connecting rod 29 through the connecting plate 38, driving the connecting rod 29 to rise; the rising action of the connecting rod 29 drives the rotating sealing disc 30 to rotate through the connecting rod 31 at its bottom, changing from the initial inclined state (allowing material discharge) to the vertical state. This process blocks the feed channel of the connecting pipe 15, cutting off the material source. When the powder flow decreases or stops, the flow pressure disappears, and the elastic force of the reset spring 25 pushes the sliding rod 22 and all linkage components (including the rotating frame 26, slider 28, and connecting rod 29) back to the initial position. The sealing disc 30 is flipped to restore the tilted state, and the connecting pipe 15 channel is reopened, preparing for the next feeding. The entire process is fully automatic, realizing intelligent adjustment based on material flow. It automatically limits the flow to prevent overload when there is too much material and automatically resets to ensure smooth flow when the material is exhausted. This not only improves the stability and efficiency of equipment operation, but also eliminates the risk of contamination through mechanical interlocking, ensuring production hygiene and quality consistency. At the same time, the low energy consumption design reduces operating costs and is suitable for high-speed continuous production scenarios.

[0042] In this embodiment, once the material begins to flow, the powder in the mixing and feeding bin 3 enters the first feed pipe 17 through the connecting pipe 15. The fluid pressure generated by the material flow acts on the sealing plate 23. This pressure overcomes the preload of the return spring 25 and pushes the sliding rod 22 to move axially. The movement of the sliding rod 22 triggers two synchronous actions: a) the sealing plate 23 releases the blockage on the first feed pipe 17, opening the channel to allow the material to flow in; b) the linear motion is converted into rotational motion through the linkage mechanism, driving the connecting rod 29 to rise. The connecting rod 29 drives the flipping sealing disc 30 to rotate from an inclined state to a vertical state through the connecting rod 31, thereby blocking the inlet of the connecting pipe 15. This pressure-driven mechanism immediately breaks the initial state, and the system enters a dynamic workflow: the material is smoothly transported to the packaging station through the first feed pipe 17, the diversion pipe 16, and the discharge pipe 20, achieving continuous discharge; while the connecting pipe 15 is blocked to prevent backflow. When material flow stops, the pressure disappears, the return spring 25 releases its elasticity, pushing all components to reset, resealing the first feed pipe 17 and opening the connecting pipe 15. The entire process is fully automatic. The initial state is only a static preset, and the state switching is completed instantly during dynamic operation. Therefore, the structural characteristic of "normal material discharge" does not contradict the mechanical position of "initial sealing"—the former is a standby function, and the latter is an instantaneous state. Pressure drive ensures seamless connection between the two in terms of timing.

[0043] like Figure 4 , Figure 9 , Figure 10 As shown, a conical receiving hopper 32 is provided at the top of the feeding pipe 20 and is connected to the discharge pipe 19. Dust suction pipes 34 are also provided on both sides of the feeding pipe 20. The dust suction pipe 34 has a U-shaped cross-section and several dust suction slots 35 are provided at the bottom of the dust suction pipe 34. An inclined feeding nozzle 33 is provided at the bottom of the feeding pipe 20. The bottom of the dust suction pipe 34 is engaged with the inclined opening of the inclined feeding nozzle 33.

[0044] Material is discharged from the upstream discharge pipe 19 and enters the conical receiving hopper 32. The tapered structure of the conical receiving hopper 32 guides the material to concentrate and smoothly transition into the discharge pipe 20, reducing impact and splashing. The material falls in the discharge pipe 20 by gravity. The dust generated during the process is captured in real time by the U-shaped dust suction pipes 34 (which can be connected to external dust collection equipment or negative pressure equipment) on both sides of the discharge pipe 20 through the dust suction slots 35 at the bottom. The dust suction slots 35 are evenly distributed to ensure that the dust is sucked into the dust removal system the moment it is generated, effectively suppressing the spread of dust. The material continues to descend to the inclined discharge nozzle 33 at the bottom of the discharge pipe 20. Its inclined opening design optimizes the discharge trajectory, allowing the material to be discharged into downstream equipment or packaging containers at a controllable speed and direction, avoiding blockage or spillage. Throughout the process, the dust suction pipe 34 is always tightly fitted to the opening of the inclined discharge nozzle 33 by a snap-fit ​​method to maintain a sealed state and prevent dust from escaping.

[0045] like Figures 1 to 5 As shown, the misaligned cleaning assembly includes a blower box 36 fixedly installed on one side of the housing 2, and a blower duct 37 is provided on one side of the blower box 36 and connected to the second feed pipe 18.

[0046] Compressed air or cleaning fluid in the air box 36 is injected into the second feed pipe 18 through the air duct 37 under the drive of a pump or air pressure; the cleaning medium enters the interlocking diversion assembly along the second feed pipe 18 and uses high pressure flushing force to remove residual powder and deposits, especially for key parts such as sliding rod 22, sealing plate 23 and feed pipe 20; the cleaning process is completely staggered from the production sequence to ensure that it does not affect the normal production rhythm.

[0047] In another preferred embodiment, the second feed pipe 18 can serve as a backup channel for emergency failures. It is connected to the main material silo via another independent conveying path. When the main material supply path (first feed pipe 17) is interrupted due to powder silo bridging, blockage, or mechanical failure, the backup material flows through the second feed pipe 18 into the diversion pipe 16. Its flow pressure drives the valve core to automatically switch the path, blocking the inlet on the faulty side and opening the backup channel, thus achieving uninterrupted continuous material supply. This design constructs a purely mechanical redundant system, which completely solves the problem of sudden material interruption and shutdown from the hardware level, significantly improving the reliability and availability of the production line.

[0048] In another preferred embodiment, the second feed pipe 18 can also serve as a micro-addition station for injecting high-value additives (such as vitamins, flavorings, or active pharmaceutical ingredients). When the main material enters from the first feed pipe 17, it pushes the valve core to block the port. When a micro-component needs to be added, the main material flow is briefly interrupted, and the high-pressure additive is injected through the second feed pipe 18, which pushes the valve core to switch. The additive is precisely delivered into the main flow and mixed with the main material. This solution achieves pollution-free switching and precise mixing of multiple components, and is suitable for the production of high-end customized nutritional products and pharmaceuticals.

[0049] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0050] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A multi-row high-speed four-sided powder strip bag packaging machine, characterized in that, include: Several support frames (1) are provided, each of which is equipped with a box (2). The top surface of each box (2) is provided with a mixing and feeding bin (3) and a film feeding frame (4). A heat sealing mechanism (5) is provided on the top of one side of the box (2). A flat cutting frame (6) is provided in the middle of one side of the box (2). A discharge guide plate (7) is provided at the bottom of one side of the box (2). A tension roller (8) is also provided between the heat sealing mechanism (5) and the flat cutting frame (6). The tension roller (8) is used to pull the strip film on the film feeding frame (4). An interlocking diversion assembly is provided at the top center of the housing (2). One side of the interlocking diversion assembly is connected to the bottom of the mixing and feeding hopper (3). The interlocking diversion assembly is driven by the material flow pressure to perform dual-path interlocking switching. A discharge pipe (20) is provided at the bottom of the interlocking diversion assembly. The discharge pipe (20) is used to feed powder. The staggered cleaning component is disposed on one side of the housing (2) and connected to the other side of the interlocking diversion component. It is used to perform staggered cleaning after feeding is completed and before the next feeding.

2. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 1, characterized in that, The heat sealing mechanism (5) includes fixed plates (9) fixedly installed on both sides of the housing (2). The two fixed plates (9) are arranged opposite each other. Two guide columns (11) are provided on the two fixed plates (9). Movable plates (12) are movably installed on the opposite surfaces of the two fixed plates (9). The two movable plates (12) are slidably installed on the guide columns (11). Cylinders (10) are provided on the opposite sides of the two fixed plates (9). The telescopic ends of the cylinders (10) are fixedly connected to one side of the movable plate (12). The two cylinders (10) are used to push the two movable plates (12) closer to each other or further away from each other. Two first heat sealing columns (13) are provided on the opposite surfaces of the two movable plates (12). A second heat sealing column (14) is provided at the bottom of the opposite surfaces of the movable plates (12).

3. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 2, characterized in that, The first heat-sealing post (13) is used on both sides of the sealing strip, and the second heat-sealing post (14) is used on the upper and lower sides of the sealing strip.

4. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 1, characterized in that, The interlocking diversion assembly includes a diversion pipe (16) fixedly installed in the middle of the top of the box (2). A first feed pipe (17) is provided on one side of the diversion pipe (16), and a second feed pipe (18) is provided on the other side of the diversion pipe (16). A discharge pipe (19) is provided at the bottom of the middle part of the diversion pipe (16). The discharge pipe (20) is connected to the discharge pipe (19). A connecting pipe (15) is provided at the bottom of the mixing and feeding bin (3). The connecting pipe (15) is connected to the first feed pipe (17).

5. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 4, characterized in that, The top of the inside of the diversion pipe (16) is provided with a positioning frame (21), which is arranged in a door shape. A sliding rod (22) is slidably installed at the bottom of the positioning frame (21). A sealing piece (23) is fixedly sleeved on both sides of the sliding rod (22). The sealing piece (23) is used to block the first feed pipe (17) or the second feed pipe (18). In the initial state, the first feed pipe (17) is set to the blocked state, and the second feed pipe (18) is set to the normally open state.

6. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 5, characterized in that, A limiting block (24) is fixedly sleeved in the middle of the sliding rod (22). Both ends of the limiting block (24) are provided with a return spring (25). The return spring (25) is movably sleeved on the outer surface of the sliding rod (22). The other ends of the two return springs (25) are respectively connected to the bottom sides of the positioning frame (21).

7. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 6, characterized in that, The positioning frame (21) has a stroke groove (27) on one side. A rotating frame (26) is rotatably installed in the middle of the limiting block (24). A slider (28) is provided on the side of the rotating frame (26) away from the limiting block (24). The slider (28) is slidably installed inside the stroke groove (27). A connecting plate (38) is provided on one side of the slider (28). A connecting rod (29) is provided on the side of the connecting plate (38) away from the slider (28). The connecting rod (29) passes through the diversion pipe (16). A flipping sealing disc (30) is rotatably installed on one side of the inside of the first feed pipe (17). The flipping sealing disc (30) is initially set to an inclined state and can discharge material normally.

8. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 7, characterized in that, One side of the connecting rod (29) passes through the connecting pipe (15), and a connecting rod (31) is provided at the bottom of one side of the connecting rod (29) to connect with one side of the flipping sealing disc (30). When the powder enters the first feed pipe (17) from the connecting pipe (15), it pushes the sealing piece (23) inside the first feed pipe (17) to open the first feed pipe (17). The sliding rod (22) moves to drive the connecting rod (29) to rise and drive the flipping sealing disc (30) to seal the connecting pipe (15).

9. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 4, characterized in that, The misaligned cleaning assembly includes a blower (36) fixedly installed on one side of the housing (2), and a duct (37) is provided on one side of the blower (36) and connected to the second feed pipe (18).

10. The multi-row high-speed four-sided powder strip bag packaging machine according to claim 4, characterized in that, The top of the feeding pipe (20) is provided with a conical receiving hopper (32) that is connected to the discharge pipe (19). The feeding pipe (20) is also provided with a dust suction pipe (34) on both sides. The dust suction pipe (34) has a U-shaped cross-section. The bottom of the dust suction pipe (34) is provided with several dust suction slots (35). The bottom of the feeding pipe (20) is provided with an inclined feeding nozzle (33). The bottom of the dust suction pipe (34) is engaged with the inclined opening of the inclined feeding nozzle (33).

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