Special sub-micron active heavy calcium carbonate pulverizer for bopp film

By introducing a combination structure of crushing rollers and conical grinding grooves into a submicron active heavy calcium carbonate crushing equipment for BOPP membranes, the problems of crushing accuracy and clogging have been solved, and a highly efficient and safe crushing process has been achieved.

CN224405307UActive Publication Date: 2026-06-26JIANGXI HAOYUAN INNOVATIVE MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI HAOYUAN INNOVATIVE MATERIALS CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing submicron active heavy calcium carbonate pulverizing equipment used in BOPP film production lacks a combined conical grinding roller, resulting in poor pulverizing accuracy, easy jamming and blockage of the feed inlet, and insufficient stability.

Method used

The crushing chamber uses a crushing roller combined with a conical grinding groove to connect to a grinding roller for multi-layer crushing. A protective cylinder is installed on the motor to prevent powder from entering. It is equipped with an adjustment rod and lever for adjusting the feed of the long hopper to prevent blockage.

Benefits of technology

It improves crushing precision, avoids jamming and clogging, enhances the safety and stability of the equipment, has high adaptability, and is easy to clean and maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special submicron active heavy calcium carbonate pulverizer of BOPP film, including the pulverization box, the lower fixed joint of pulverization box has the connecting disc, the inside upper end of pulverization box rotatory mounting has the pulverization roller, the inside fixed connection of pulverization box has the fixed base, the inside of fixed base is equipped with conical grinding groove, the lower surface fixed connection of fixed base has the fixed frame, the lower surface fixed mounting of fixed frame has the motor, one end rotatory mounting of motor has the grinding roller, the upper surface of grinding roller is equipped with the conical head, the inside rotatory mounting of grinding roller is in conical grinding groove, the outer surface fixed sleeve of motor has the protection cylinder, the upper surface of pulverization box is equipped with the long strip hopper, the both sides of long strip hopper are equipped with the long strip through groove, the inside sliding installation of long strip through groove has the adjusting rod, avoids the jamming, is favorable to the maintenance, safe and stable, and the adaptability is high.
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Description

Technical Field

[0001] This utility model relates to the field of calcium carbonate pulverization, and more specifically, to a submicron active heavy calcium carbonate pulverizer specifically for BOPP membranes. Background Technology

[0002] In the production and processing of BOPP film, special submicron active heavy calcium carbonate powder is used. In order to ensure quality, it needs to be crushed by a pulverizer.

[0003] The utility model patent with authorization announcement number CN 218167185 U relates to the field of heavy calcium carbonate technology and discloses an ultrafine heavy calcium carbonate pulverizing device, including a box, a pulverizing unit, and a screening unit. The box has a hopper at the top and a collection box at the bottom, the collection box being open, with support legs at the bottom corners, the free ends of which are fixed to a base plate. The pulverizing unit is located inside the box. The screening unit includes a sieve plate, which is inclinedly positioned inside the collection box. A frame is fixed to the bottom of the sieve plate, and a vibrating motor is mounted on the frame. The frame movably extends through the collection box, and a spring is located at the free end of the frame, the free end of which is fixed to the base plate. A material collection bin is located at the bottom of the collection box, and a vacuum conveyor is located at the material discharge end of the sieve plate. A conveying pipeline is located at the discharge end of the vacuum conveyor, the free end of which is connected to the box. This utility model has a simple structure and strong practicality.

[0004] In the aforementioned publicly available results, the crushing and screening units are directly held inside the housing for crushing and screening. However, the single crushing roller structure lacks a combined conical grinding roller, which cannot perform grinding, resulting in poor crushing accuracy. Furthermore, the absence of an adjusting rod connecting the feed inlet makes it difficult to adjust the feed inlet position, easily causing jamming and blockage, and affecting stability. These issues require improvement. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a submicron active heavy calcium carbonate pulverizer specifically for BOPP film. It features a pulverizing roller installed inside the pulverizing chamber, combined with a conical grinding groove connecting to the grinding roller, enabling multi-layer pulverization and improving fineness. A protective sleeve is installed on the motor to prevent powder from entering, enhancing safety. Furthermore, an adjusting rod and lever are installed in the long hopper, allowing for manual adjustment to move the raw material, preventing jamming and clogging, facilitating maintenance, ensuring safety and stability, and offering high adaptability.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A submicron activated heavy calcium carbonate pulverizer for BOPP membrane includes a pulverizing chamber. A connecting plate is fixedly connected to the lower end of the pulverizing chamber. A pulverizing roller is rotatably mounted on the upper part of the pulverizing chamber. A fixed base is fixedly connected inside the pulverizing chamber. The fixed base has a conical grinding groove inside. A fixed frame is fixedly connected to the lower surface of the fixed base. A motor is fixedly mounted on the lower surface of the fixed frame. A grinding roller is rotatably mounted on one end of the motor. The upper surface of the grinding roller has a conical head. The grinding roller is rotatably mounted inside the conical grinding groove. A protective sleeve is fixedly fitted onto the outer surface of the motor. A long hopper is provided on the upper surface of the pulverizing chamber. Long through grooves are provided on both sides of the long hopper. An adjusting rod is slidably mounted inside the long through grooves. A lever is fixedly connected to the outer surface of the adjusting rod.

[0008] Furthermore, rollers are rotatably mounted at both ends of the adjusting rod, and the rollers are rotatably connected to the upper surface of the crushing chamber.

[0009] Furthermore, handles are fixedly installed at both ends of the upper surface of the adjusting rod, and the handles are slidably installed at both ends of the long hopper.

[0010] Furthermore, the levers are evenly distributed on the upper and lower surfaces of the adjusting rod. The adjusting rod connects to the roller and the handle, allowing for manual adjustment from both sides. This facilitates cleaning and maintenance, avoids clogging, and offers high adaptability.

[0011] Furthermore, a connecting pipe is fixedly connected to the lower surface of the protective cylinder, and an air inlet pipe is fixedly connected to one side of the connecting pipe.

[0012] Furthermore, a rubber vent is fixedly connected to the outer surface of the protective cylinder, and the end of the rubber vent has a flat opening.

[0013] Furthermore, the upper end of the protective cylinder is provided with a fixing ring, which is fixedly installed on the lower surface of the fixing frame by screws. The connecting pipe and the air inlet pipe are installed through the protective cylinder, and the rubber air outlet on the surface is provided with a flat opening, which can allow air to enter from the outside and exit from the inside, avoiding powder interference with the motor, which is conducive to isolation and protection, ensuring heat dissipation, safety and stability, and facilitating combined use.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses a crushing roller installed inside the crushing box and a grinding roller connected to the conical grinding groove to perform multi-layer crushing, thereby improving the fineness. At the same time, a protective cylinder is installed on the motor to prevent powder from entering and improve safety. Additionally, an adjustment rod and lever are installed on the long hopper, which can be manually pushed to adjust and move the raw material, preventing jamming and blockage. This makes it easy to maintain, safe, stable, and highly adaptable.

[0016] (2) The roller and handle are connected by the adjustment rod, which can be manually pushed from both sides for easy cleaning and maintenance, avoids blockage, and has high adaptability.

[0017] (3) By installing the connecting pipe and air inlet pipe through the protective cylinder, and combining the flat opening of the rubber air outlet on the surface, air can be introduced from the outside and then discharged from the inside, avoiding powder interference with the motor, which is conducive to isolation and protection, ensuring heat dissipation, safety and stability, and is conducive to combined use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0020] Figure 3 This is a partial structural diagram of the adjusting rod connection of this utility model;

[0021] Figure 4 This is an external structural diagram of the crushing chamber of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the protective cylinder of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Crushing box body, 11. Connecting plate, 12. Crushing roller, 13. Fixing base, 14. Conical grinding groove, 15. Fixing frame, 16. Motor, 17. Grinding roller, 18. Conical head, 19. Protective cylinder, 2. Long hopper, 21. Long through groove, 22. Adjusting rod, 23. Toggle rod, 24. Roller, 25. Handle, 26. Connecting pipe, 27. Air inlet pipe, 28. Rubber air outlet, 29. Flat opening, 3. Fixing ring, 31. Screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4This BOPP film-specific submicron activated heavy calcium carbonate pulverizer includes a pulverizing chamber 1. A connecting plate 11 is fixedly connected to the lower end of the pulverizing chamber 1, allowing it to be aligned and installed on a screening device. Pulverizing can be done from the top and screening from the bottom, facilitating installation and use. Inside the pulverizing chamber 1, a pulverizing roller 12 is rotatably mounted at the upper end, with meshing gears mounted on the sides. Driven by a motor, these rollers can rotate relative to each other, thus performing extrusion pulverization. A fixed base 13 is fixedly connected inside the pulverizing chamber 1. The fixed base 13 has a conical grinding groove 14 inside. A fixed frame 15 is fixedly connected to the lower surface of the fixed base 13, and a motor 16 is fixedly mounted on the lower surface of the fixed frame 15. Calcium carbonate raw materials can be added through the elongated hopper 2 at the upper end of the pulverizing chamber 1. After entering the crushing chamber 1, it can be crushed by the rotating crushing roller 12 and then fall downwards. It is guided to the side position by the conical head 18 and can enter the gap position between the conical grinding groove 14 and the grinding roller 17 for rotational grinding, thereby improving the crushing fineness, with high adaptability and convenient for production use. The grinding roller 17 is rotatably installed at one end of the motor 16. The upper surface of the grinding roller 17 is provided with a conical head 18. The grinding roller 17 is rotatably installed inside the conical grinding groove 14. The outer surface of the motor 16 is fixedly sleeved with a protective sleeve 19. The upper surface of the crushing chamber 1 is provided with a long strip hopper 2. The two sides of the long strip hopper 2 are provided with long strip through grooves 21. An adjusting rod 22 is slidably installed inside the long strip through groove 21. A lever 23 is fixedly connected to the outer surface of the adjusting rod 22.

[0027] Please see Figure 2 and Figure 3 Rollers 24 are rotatably mounted on both ends of the adjusting rod 22. The rollers 24 are rotatably connected to the upper surface of the crushing chamber 1. Handles 25 are fixedly mounted on both ends of the upper surface of the adjusting rod 22. The handles 25 are slidably mounted on both ends of the long hopper 2. The levers 23 are evenly distributed on the upper and lower surfaces of the adjusting rod 22. The adjusting rod connects the rollers and the handles, allowing manual adjustment from both sides. This facilitates cleaning and maintenance, avoids clogging, and has high adaptability. When calcium carbonate raw material is put into the long hopper 2, it can enter the crushing chamber 1 for crushing. At this time, the handles 25 can be manually pushed to push the adjusting rod 22 to slide and adjust its position inside the long through groove 21, thereby moving the levers 23 back and forth. This can push the calcium carbonate raw material, avoid mutual accumulation and clogging, facilitate stable feeding, facilitate adjustment and cleaning, and ensure safety, stability, and high adaptability.

[0028] Please see Figure 1 , Figure 2 and Figure 5A connecting pipe 26 is fixedly connected to the lower surface of the protective cylinder 19, and an air inlet pipe 27 is fixedly connected to one side of the connecting pipe 26. A rubber air outlet 28 is fixedly connected to the outer surface of the protective cylinder 19, and a flat opening 29 is provided at the end of the rubber air outlet 28. A fixing ring 3 is provided at the upper end of the protective cylinder 19. The fixing ring 3 is fixedly installed on the lower surface of the fixing frame 15 by screws 31. By installing the connecting pipe and the air inlet pipe through the protective cylinder, and combining the flat opening of the rubber air outlet on the surface, air can be introduced from the outside and discharged from the inside, avoiding powder interference with the motor, facilitating isolation and protection, ensuring heat dissipation, ensuring safety and stability, and facilitating combined use. When the motor 16 drives the grinding roller 17 to rotate and grind, the built-in cooling fan will blow air to dissipate heat. This can be combined with the air inlet pipe 27 to draw air from the outside, thereby assisting in cooling and preventing the pulverized powder from being sucked into the interior, improving safety. The drawn-in gas can flow out from the rubber air outlet 28 to ensure uniformity. When the air pressure is low, the flat opening 29 is in a compressed and closed state, reducing the entry of powder, facilitating combined use, and ensuring safety and stability.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A submicron activated heavy calcium carbonate pulverizer for BOPP membrane, comprising a pulverizing chamber (1), wherein a connecting plate (11) is fixedly connected to the lower end of the pulverizing chamber (1), and a pulverizing roller (12) is rotatably mounted on the upper end of the interior of the pulverizing chamber (1), characterized in that: The crushing box (1) is fixedly connected to a fixed seat (13). The fixed seat (13) is provided with a conical grinding groove (14). The lower surface of the fixed seat (13) is fixedly connected to a fixed frame (15). The lower surface of the fixed frame (15) is fixedly installed with a motor (16). A grinding roller (17) is rotatably installed at one end of the motor (16). The upper surface of the grinding roller (17) is provided with a conical head (18). The grinding roller (17) is rotatably installed inside the conical grinding groove (14). A protective sleeve (19) is fixedly sleeved on the outer surface of the motor (16). The upper surface of the crushing box (1) is provided with a long strip hopper (2). The two sides of the long strip hopper (2) are provided with long strip through grooves (21). An adjusting rod (22) is slidably installed inside the long strip through groove (21). A lever (23) is fixedly connected to the outer surface of the adjusting rod (22).

2. The submicron activated heavy calcium carbonate pulverizer for BOPP membrane as described in claim 1, characterized in that: Rollers (24) are rotatably mounted on both ends of the adjusting rod (22), and the rollers (24) are rotatably connected to the upper surface of the crushing box (1).

3. The submicron activated heavy calcium carbonate pulverizer for BOPP membranes according to claim 2, characterized in that: The upper surface of the adjusting rod (22) is fixedly equipped with handles (25) at both ends, and the handles (25) are slidably installed at both ends of the long hopper (2).

4. The submicron activated heavy calcium carbonate pulverizer for BOPP membrane as described in claim 2, characterized in that: The levers (23) are evenly distributed on the upper and lower surfaces of the adjusting rod (22).

5. The submicron activated heavy calcium carbonate pulverizer for BOPP membrane as described in claim 1, characterized in that: A connecting pipe (26) is fixedly connected to the lower surface of the protective cylinder (19), and an air inlet pipe (27) is fixedly connected to one side of the connecting pipe (26).

6. The submicron activated heavy calcium carbonate pulverizer for BOPP membrane as described in claim 1, characterized in that: A rubber vent tube (28) is fixedly connected to the outer surface of the protective cylinder (19), and a flat opening (29) is provided at the end of the rubber vent tube (28).

7. The submicron activated heavy calcium carbonate pulverizer for BOPP membrane as described in claim 1, characterized in that: The upper end of the protective cylinder (19) is provided with a fixing ring (3), which is fixedly installed on the lower surface of the fixing frame (15) by screws (31).