Master batch adding device for producing filter material

By using a feed hopper to separate the main material and masterbatch areas in the masterbatch addition device, and using screw conveyor and level sensor to control the addition of masterbatch, the problems of complex structure and high cost of existing devices are solved, and simplified operation and efficient production are achieved.

CN223835004UActive Publication Date: 2026-01-27SCD NEW MATERIAL TECH SHANGHAI CO LTD
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Patent Information

Application Number
CN202520293698.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-27
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing masterbatch addition devices have complex structures, requiring multiple sensors and electronic control systems, resulting in high design and production costs and making it difficult to achieve precise masterbatch addition control.

Method used

The main material feeding area and the masterbatch feeding area are separated by a feeding hopper. The addition of masterbatch is controlled by a masterbatch conveying screw and a level sensor. Combined with a magnetic ring to adsorb metal impurities, the structure is simplified and automatic alarm and replenishment functions are realized.

Benefits of technology

It enables simple operation and low-cost masterbatch addition, ensuring stable equipment operation, improving production efficiency and equipment safety, and avoiding the complexity and high cost of traditional equipment.

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Abstract

The utility model discloses a master batch adding device for producing filter materials, which comprises a feeding barrel, a feeding pipe is arranged in the middle of the feeding barrel, and the feeding barrel is divided into a main material feeding area and a master batch feeding area by the feeding pipe. When raw materials are added, main materials enter the conical cylinder under the action of dead weight, master batches enter the feeding pipe through the master batch conveying screw, the main materials and the master batches enter the screw extruder at the feeding port of the screw extruder together, and the screw extruder is simple in overall structure and convenient to operate.
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Description

Technical Field

[0001] This utility model relates to the field of production feeding equipment technology, specifically to a masterbatch addition device for producing filter materials. Background Technology

[0002] Masterbatch is a concentrate of plastic additives. By adding different functional additives, it can improve the flowability of plastics, reduce mold fouling, facilitate demolding, and accelerate molding speed, thereby enhancing the processing performance and molding quality of plastics. In addition, masterbatch can also improve the physical and chemical properties of plastic products, such as heat aging resistance, weather resistance, rigidity, transparency, and mechanical properties, and increase the product's electrical conductivity, flame retardancy, and antibacterial properties.

[0003] Currently, most masterbatch addition devices used in the market for producing filter materials employ a weighing method to control the amount of masterbatch added. To achieve precise weight measurement and control, the device typically requires multiple sensors, an electronic control system, and associated mechanical structures. The complexity of these components directly leads to difficulties in system design and assembly. Secondly, due to the involvement of multiple high-precision parts, the manufacturing process is relatively costly, requiring not only high-precision instruments and equipment but also high-level process requirements and manual operation, further increasing production costs. Utility Model Content

[0004] The purpose of this invention is to provide a masterbatch addition device for producing filter materials in order to solve the above problems.

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

[0006] The feeding hopper has a feeding pipe in the middle, which divides the feeding hopper into a main material feeding area and a masterbatch feeding area.

[0007] As a further description of the above technical solution, the diameter of the feed pipe is 10%-20% of the diameter of the feed barrel.

[0008] As a further description of the above technical solution, the diameter of the feed tube is 40-60mm.

[0009] As a further description of the above technical solution, the feed pipe and the feed barrel share the same axis.

[0010] As a further description of the above technical solution, a masterbatch conveying screw is provided above the feed pipe, and the masterbatch conveying screw is used to convey masterbatch.

[0011] As a further description of the above technical solution, the bottom of the masterbatch conveying screw is inserted into the feed tube.

[0012] As a further description of the above technical solution, the feed hopper is installed on the feed port at the top of one side of the screw extruder.

[0013] As a further description of the above technical solution, the feed hopper is detachably connected to the feed inlet via a connector.

[0014] As a further description of the above technical solution, a material level sensor is symmetrically installed in the middle of the cylinder wall of the feed hopper, and the material level sensor is used to detect the material level height.

[0015] As a further description of the above technical solution, a magnetic ring is provided inside the inner wall of the feed barrel, and the magnetic ring is used to adsorb metal impurities.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, when adding raw materials, the main material enters the conical cylinder by its own weight, while the masterbatch enters the feed pipe through the masterbatch conveying screw. The main material and masterbatch enter the screw extruder together at the feed port of the screw extruder. The overall structure is simple and the operation is convenient.

[0018] 2. In this utility model, a material level indicator is installed in the middle of the feed cylinder during operation. When there is a shortage of material, an alarm is automatically triggered to ensure normal material supply. A magnetic ring is installed inside the feed cylinder, which can effectively adsorb small metal impurities and ensure the normal operation of the equipment.

[0019] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the masterbatch addition device for producing filter materials according to this utility model.

[0021] Figure label:

[0022] 1. Feed hopper; 11. Main material feeding area; 12. Masterbatch feeding area; 13. Material level indicator; 14. Magnetic ring; 2. Feed pipe; 3. Masterbatch conveying screw; 4. Screw extruder; 41. Feed port; 42. Connecting parts. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1As shown, in one embodiment, a masterbatch addition device for producing filter materials includes: a feed tank 1, and a feed pipe 2 is provided in the middle of the feed tank 1, such that the feed pipe 2 divides the feed tank 1 into a main material feed area 11 and a masterbatch feed area 12.

[0025] Understandably, when adding raw materials, the main material enters the main material feeding area 11 of the conical cylinder by its own weight, while the masterbatch enters the feeding pipe 2, i.e. the masterbatch feeding area 12, through the masterbatch conveying screw 3. Then, the main material and the masterbatch enter the screw extruder 4 together at the feed port 41 of the screw extruder 4 for extrusion and mixing.

[0026] Specifically, the diameter of the feed pipe 2 is 10%-20% of the diameter of the feed barrel 1, and the diameter of the feed pipe 2 is 40-60mm. It is made of wear-resistant materials such as stainless steel, and the feed pipe 2 and the feed barrel 1 share the same axis.

[0027] Furthermore, a masterbatch conveying screw 3 is installed above the feed pipe 2 for conveying masterbatch, and the bottom of the masterbatch conveying screw 3 is inserted into the feed pipe 2. During operation, the masterbatch conveying screw 3 can be controlled by a frequency converter lifting mechanism, thereby controlling the amount of masterbatch conveyed.

[0028] Please continue reading. Figure 1 In this embodiment, the feed hopper 1 is installed on the feed inlet 41 at the top of one side of the screw extruder 4. The feed hopper 1 is detachably connected to the feed inlet 41 via a connector 42. The connector 42 can be a common connection structure such as a flange or clamp, so that the feed hopper 1 can be firmly fixed to the feed inlet 41.

[0029] Furthermore, to ensure sufficient raw material supply during the production process, when the material level falls below the set minimum standard, the level sensor 13 will send a signal to automatically activate the material suction system (composed of a feed tank, suction pump, suction pipeline, and suction port, etc., which will not be described in detail as prior art) to replenish the raw material to the normal level. To ensure the continuity and stability of the production line, the material suction device will pick up raw materials within a specified time. If the material suction device fails to replenish the raw material within this time, the system will automatically trigger an alarm function to notify the operator to check and handle the abnormal situation in a timely manner, preventing production stoppage or quality problems caused by raw material shortages.

[0030] Furthermore, a magnetic ring 14 is provided inside the inner wall of the feed tank 1. The magnetic ring 14 is used to adsorb tiny metal impurities, which effectively improves the safety and stability of the equipment and ensures that the equipment will not malfunction due to the accumulation of metal impurities during long-term operation.

[0031] Working principle: During operation, the main material enters the feed hopper 1 by its own weight and enters the screw extruder 4 according to the screw speed. The masterbatch is continuously conveyed into the screw extruder 4 by the masterbatch conveying screw 3 that enters the stainless steel feed hopper 1. The main material and masterbatch enter the screw extruder 4 together at the feed port 41 of the screw extruder 4.

[0032] Through the above technical solution, the overall structure of this application is simple, easy to operate and maintain. The main material and masterbatch can be mixed in a certain proportion and fed into the screw extruder 4 without weighing, which effectively improves production efficiency.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A masterbatch addition device for producing filter materials, characterized in that, include: Feeding bucket (1), with a feeding pipe (2) in the middle of the feeding bucket (1), the feeding pipe (2) divides the feeding bucket (1) into a main material feeding area (11) and a masterbatch feeding area (12).

2. The masterbatch addition device for producing filter materials according to claim 1, characterized in that, The diameter of the feed pipe (2) is 10%-20% of the diameter of the feed barrel (1).

3. The masterbatch addition device for producing filter materials according to claim 2, characterized in that, The diameter of the feed pipe (2) is 40-60 mm.

4. The masterbatch addition device for producing filter materials according to claim 2, characterized in that, The feed pipe (2) and the feed bucket (1) share the same axis.

5. The masterbatch addition device for producing filter materials according to claim 1, characterized in that, A masterbatch conveying screw (3) is provided above the feed pipe (2), and the masterbatch conveying screw (3) is used to convey masterbatch.

6. The masterbatch addition device for producing filter materials according to claim 5, characterized in that, The bottom of the masterbatch conveying screw (3) is inserted into the feed pipe (2).

7. The masterbatch addition device for producing filter materials according to claim 1, characterized in that, The feed hopper (1) is installed on the feed port (41) at the top of one side of the screw extruder (4).

8. The masterbatch addition device for producing filter materials according to claim 7, characterized in that, The feed hopper (1) is detachably connected to the feed inlet (41) via a connector (42).

9. The masterbatch addition device for producing filter materials according to claim 7, characterized in that, The feed hopper (1) has a material level sensor (13) symmetrically installed in the middle of the cylinder wall. The material level sensor (13) is used to detect the material level height.

10. The masterbatch addition device for producing filter materials according to claim 7, characterized in that, The feed barrel (1) has a magnetic ring (14) inside its inner wall, which is used to adsorb metal impurities.