A modular multi-zone independent dosing control internal mixer charging structure

Abstract

The utility model discloses a modularization multi -area independent batching control's internal mixer feeding structure belongs to high polymer material mixing equipment technical field. The feeding structure includes a batching bin body, a plurality of separate area module, independent feeding channel and control air pipe, and each separate area module includes independent cavity, rotating vane mechanism and sealed feeding port, and each area is installed in the batching bin through the plug -in quick change structure. Control system can independently adjust each area rotating vane speed and feeding air pressure according to demand, adapts to a variety of raw material proportion switching scene, realizes the premixing synchronous control before different formula internal mixing. The structure has realized the modularization, the convenient replacement and the control independence of batching cavity, and has promoted the precision, the flexibility and the clean convenience of internal mixing feeding.

Description

Technical Field

[0001] This utility model relates to the field of polymer material mixing technology, and in particular to a modular multi-zone independent batching control mixing and feeding structure, which is suitable for continuous feeding systems for high-precision specific gravity batching of powder and granular materials. Background Technology

[0002] Most current masterbatch batching systems adopt a fixed single-chamber feeding structure. In the feeding stage before internal mixing, it is impossible to quickly adjust and differentiate modules according to different raw material types and proportions. Chinese patent CN213938372U discloses a feeding device with a feeding control mechanism. Although it has a single-group feeding throttling function, it still adopts a whole-chamber control mode. The structure is not adjustable, cleaning is inconvenient, and the configuration is fixed, making it difficult to meet the industrial needs of flexible switching between multiple formulas.

[0003] Furthermore, for granular / powder materials with high hygroscopicity or high dust risk, conventional equipment lacks an "independent airflow-assisted discharge" mechanism, which easily leads to bridging, arching, or residue adhesion. Traditional manual cleaning methods are labor-intensive and prone to cross-contamination. Utility Model Content

[0004] The purpose of this invention is to provide a modular, multi-zone, independently controlled mixing and feeding structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A modular, multi-zone, independently controlled mixing and feeding structure.

[0007] Includes a mixing hopper body, which has multiple compartment modules. Each compartment module includes an independent cavity, a rotating blade assembly, and a feeding port. The independent cavity can be detachably installed in the mixing hopper body via a snap-fit ​​or plug-in structure.

[0008] Each of the compartment modules is equipped with an independent pneumatic control channel, including an air pipe, a control valve, and an air chamber;

[0009] The multiple partition modules are respectively connected to the central control system, which can independently control the feeding action corresponding to each of the pneumatic control channels.

[0010] Preferably, the mixing hopper body is provided with an adjustable partition inside to define the boundaries between each compartment module. The partition can be horizontally slidable to adapt to modules of different specifications.

[0011] Preferably, the blade assembly includes a vertically mounted rotating shaft, blades, and linkage connectors, with the rotating shaft connected to an external drive source via a magnetic coupling or gear structure.

[0012] Preferably, each of the feeding ports is provided with a limiting guide groove and a flexible sealing sheet to prevent particle leakage at the bottom.

[0013] Preferably, the plug-in structure is a combination of "T-shaped buckle + limiting pin", which can achieve quick disassembly and airtight sealing.

[0014] Preferably, a one-way control valve is provided between the vent pipe and the air chamber. When the control valve is opened, it automatically releases a micro-pressure airflow to push the raw material out.

[0015] Preferably, the central control system adopts a PLC controller and is equipped with a touch screen operation interface, which can set the speed, pressure and timing parameters of each zone.

[0016] Preferably, the independent cavity is a corrosion-resistant composite material structure, suitable for batching environments containing inorganic fillers, masterbatches, highly hygroscopic materials, etc.

[0017] Preferably, each compartment module can be completely extracted, flipped over for cleaning after the materials are dispensed, and is equipped with a removable flow guide base to prevent residual materials from accumulating.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This modular multi-zone independent batching control mixing and feeding structure, through modular cavity + plug-in limiting structure, realizes quick replacement and cleaning of batching area without disassembling the entire feeding hopper, improves equipment changeover efficiency and avoids cross-contamination.

[0020] 2. This modular multi-zone independent batching control mixing and feeding structure independently manages the air pressure and speed of each zone through a central control system. It can set differentiated proportions and feeding strategies for raw materials with different densities / forms, significantly improving batching consistency and automation control capabilities. Attached Figure Description

[0021] Figure 1 : Top view of the overall structure of this utility model;

[0022] Figure 2 : 3D exploded view of the partition module structure;

[0023] Figure 3 Enlarged view of the feed inlet and the limiting slide groove;

[0024] Figure 4 : Cross-sectional view of quick-change plug-in structure;

[0025] Figure 5 : Structural diagram of the blade assembly and magnetic coupling;

[0026] Figure 6 : Schematic diagram of the installation and flipping structure of the flow guide base;

[0027] Figure 7 Diagram of the central control system touch interface and channel management module.

[0028] In the diagram: 1. Batching hopper body; 2. Isolation module; 21. Independent cavity; 22. Rotating blade assembly; 23. Feeding port; 24. Limiting guide groove; 25. Flexible sealing plate; 26. Plug-in structure; 3. Pneumatic control channel; 31. Air pipe; 32. Control air valve; 33. Air chamber; 4. Central control system; 5. Adjustable partition; 27. Flow guide base. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 7 As shown, this utility model includes a mixing hopper body (1) and multiple compartment modules (2) installed inside it. Each compartment module (2) includes an independent cavity (21), a vertically arranged rotating blade assembly (22), and a feeding port (23) with a flexible sealing plate at the bottom. The outer walls of the independent cavity (21) are provided with a quick-change plug-in structure (26) composed of a "T-shaped slot + limiting pin", which can realize the quick assembly and disassembly of the module without tools.

[0031] The rotating blade assembly (22) includes a rotating shaft driven by an external magnetic coupling motor. The rotating shaft passes through the top guide hole of the silo and enters the cavity, driving several blades to rotate, which is used to push the material out along the center.

[0032] During normal operation, the rotating blade assembly (22) rotates at a speed of 30 to 60 rpm. The blade tip pushes the granular raw material from the center of the cavity to the bottom feeding port (23). During the pushing process, a downward flow trend is formed, and the raw material pushes the flexible sealing sheet (25) to naturally separate and open on both sides. After the feeding stops, the sealing sheet closes automatically due to gravity and the rebound of the elastic sheet to prevent granules from remaining.

[0033] The feeding port (23) is connected to the discharge area of ​​the main hopper. Its outlet is provided with a limiting guide groove (24). Flexible sealing plates (25) are provided on both sides of the groove. The flexible sealing plates (25) are silicone rubber elastic sheets with a thickness of 1.5mm. They are fixed on the inner walls on both sides of the feeding port (23), and their free ends are slightly inclined inward. They open under the thrust of raw materials and close by their own weight and tension rebound when there is no material. They have dustproof and leakproof functions.

[0034] Each compartment module is equipped with an independent pneumatic control channel (3), including an air pipe (31), a micro air chamber (33), and a control air valve (32). The central control system (4) adopts a PLC module to manage the opening sequence and air volume of each air valve. Different pressure ranges (0.05MPa~0.2MPa) can be set to adapt to particle resistance and realize particle auxiliary discharge, anti-arching / anti-sticking functions.

[0035] As configured in the control system, zone module 1 starts with a 3-second delay before introducing gas at a pressure of 0.12 MPa, with a duration of 2 seconds; zone module 2 starts synchronously but at a pressure of 0.09 MPa. A bus program can be subsequently configured to uniformly schedule the gas distribution ratios of each zone. The control interface is shown below. Figure 7 It features touch input and a program logic panel.

[0036] The mixing hopper is equipped with an adjustable partition (5) installed in the longitudinal guide rail and positioned by a spiral guide block mechanism. The boundary between each module can be adjusted within ±20mm to accommodate different module sizes or composite material loading schemes.

[0037] The independent cavity (21) is made of aluminum alloy + PVDF coated composite material, which has anti-corrosion and anti-adhesion capabilities, and is suitable for various raw material conditions such as inorganic fillers, masterbatches, and highly hygroscopic resins. The lower part of the module is equipped with a flow guide base (27), which is installed on the bottom plate of the main compartment (e.g., via a knob bayonet structure). Figure 6 As shown, the base can be rotated 90° and flipped over for cleaning after the module is pulled out, thus avoiding material accumulation.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A modular, multi-zone, independently controlled mixing and feeding structure, characterized in that: Includes a mixing hopper body (1), which has multiple compartment modules (2) inside. Each compartment module (2) includes an independent cavity (21), a rotating blade assembly (22) and a feeding port (23). The independent cavity (21) can be detachably installed inside the mixing hopper body (1) by means of a snap-fit ​​or plug-in structure (26). Each of the compartment modules (2) is equipped with an independent pneumatic control channel (3), including a vent pipe (31), a control valve (32), and an air chamber (33); The multiple partition modules (2) are respectively connected to the central control system (4), and the central control system (4) can independently control the feeding action corresponding to each of the pneumatic control channels (3).

2. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: The mixing chamber body (1) is provided with an adjustable partition (5) to define the boundaries between each compartment module (2). The partition (5) can be horizontally slidable to adapt to modules of different specifications.

3. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: The blade assembly (22) includes a vertically mounted rotating shaft, blades, and linkage connectors. The rotating shaft is connected to an external drive source via a magnetic coupling or gear structure.

4. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: Each of the feeding ports (23) is provided with a limiting guide groove (24) and a flexible sealing sheet (25) to prevent leakage of particles at the bottom.

5. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: The plug-in structure (26) is a combination of "T-shaped buckle + limit pin", which can achieve quick disassembly and airtight sealing.

6. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: A one-way control valve is provided between the vent pipe (31) and the air chamber (33). When the control valve is opened, it automatically releases a micro-pressure airflow to push the raw material out.

7. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: The central control system (4) adopts a PLC controller and is equipped with a touch screen operation interface, which can set the speed, pressure and timing parameters of each zone.

8. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: The independent cavity (21) is a corrosion-resistant composite material structure, suitable for batching environments of inorganic fillers, masterbatches, highly hygroscopic materials, etc.

9. The modular multi-zone independent batching control mixing and feeding structure according to claim 1, characterized in that: After the ingredients are dispensed, each compartment module (2) can be pulled out as a whole, flipped over for cleaning, and is equipped with a removable flow guide base to prevent residual material from accumulating.

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