Water-drop type pulverizer feeding device
By adopting an inclined conveying pipe and a cutting plate structure in the teardrop-shaped crusher, the problems of material accumulation and blockage caused by continuous feeding are solved, achieving stability and smoothness in material conveying and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南强福机械有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
The existing teardrop-type crusher has a continuous feeding system, which causes material to accumulate in certain parts of the equipment, resulting in poor flow and blockage.
The structure employs an inclined conveying pipe and a cutting plate. The material conveying frequency is controlled by the reciprocating sliding of the cutting plate, and the material flow rate is adjusted by a spring and cam mechanism to prevent excessive material from entering the crusher.
It effectively avoids the accumulation and blockage of materials in the equipment, ensures the stability and smoothness of material conveying, and improves production efficiency and equipment lifespan.
Smart Images

Figure CN224524946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feeding technology for crushers, specifically a water droplet-type crusher feeding device. Background Technology
[0002] The teardrop-shaped pulverizer is a high-efficiency pulverizing equipment widely used in the chemical, pharmaceutical, and food industries. It is mainly used for pulverizing various materials such as granules, powders, or hard materials. Its name comes from its teardrop-shaped design. The working principle of the teardrop-shaped pulverizer is based on the interaction between a high-speed rotating cutter disc and a fixed screen. Through high-speed shearing, impact, and friction, the material is pulverized to the desired particle size. This type of machine typically has a multi-stage pulverizing system, which can complete the coarse and fine pulverizing processes in one pass, improving production efficiency.
[0003] The feed for a teardrop-type pulverizer typically enters the equipment through the feed inlet and is evenly distributed by a feeding system (such as a vibrating feeder or screw conveyor). Ideally, the feeding method involves controlling the amount and particle size of the material to ensure the pulverizer operates effectively. However, most feeding systems are continuous, which often means that material keeps entering the pulverizer, easily causing material to accumulate in certain parts of the equipment, especially in the feed inlet area, leading to poor material flow and blockages. To solve the above-mentioned problems, a feeding device for a teardrop-type pulverizer is provided. Utility Model Content
[0004] The purpose of this invention is to provide a feeding device for a teardrop-shaped pulverizer to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a water droplet-type pulverizer feeding device, comprising the main body of the pulverizer;
[0006] A conveying pipe is connected to the upper end of the main body and is inclined to convey materials into the main body.
[0007] The material cut-off plate is slidably inserted into the upper end of the conveying pipe to cut off the conveying of materials inside the pipe. The reciprocating sliding of the material cut-off plate controls the conveying frequency.
[0008] As a preferred embodiment of this invention, a spring is installed inside the upper part of the conveying pipe to apply a downward elastic force to the cutting plate.
[0009] As a preferred technical solution of this utility model, a limiting rod to prevent the spring from bending is fixedly connected to the upper end of the conveying pipe, and the limiting rod is slidably inserted into the upper end of the conveying pipe, with the spring sleeved on the limiting rod.
[0010] As a preferred technical solution of this utility model, the cutting plate is fixedly connected to both sides of the cutting plate, and the cutting blocks are slidably installed on both sides of the conveying pipe. Cams for moving the cutting blocks to slide are rotatably installed on both sides of the conveying pipe.
[0011] As a preferred embodiment of this utility model, a connecting rod for linkage is connected between the two cams, and the connecting rod is rotatably installed at the lower end of the conveying pipe.
[0012] As a preferred technical solution of this utility model, a bracket for supporting the conveying pipe is fixedly connected to one side of the main body.
[0013] As a preferred technical solution of this utility model, a motor for driving the cam to rotate is fixedly connected to the upper end of the bracket.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention uses a conveying pipe to transport materials into the main body, and a cutting plate to cut off the material transport inside the conveying pipe. The cutting plate slides back and forth to control the conveying frequency, intermittently feeding materials into the main body. This solves the problem that most existing water droplet-type crushers have continuous feeding systems, which cause materials to accumulate in certain parts of the equipment, resulting in poor material flow and blockage. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the device according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the conveying pipe according to an embodiment of the present utility model;
[0018] Figure 3 This is a cross-sectional view of the conveying pipe according to an embodiment of the present utility model;
[0019] Figure 4 This is a schematic diagram of the cutting plate structure according to an embodiment of the present utility model.
[0020] In the diagram: 1. Main body; 2. Conveying pipe; 3. Cutting plate; 31. Spring; 32. Limiting rod; 4. Cam; 5. Support. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 This embodiment provides a feeding device for a teardrop-shaped pulverizer, including a main body 1 of the pulverizer. The main body 1 is a SWFP66X80C teardrop-shaped hammer pulverizer. An inclined feeding port is provided at the upper end of the main body 1, through which materials can be fed into the main body 1 for pulverization.
[0023] like Figure 1 As shown, a conveying pipe 2 is fixedly connected to the feed inlet of the main body 1. The conveying pipe 2 is inclined towards the feed inlet of the main body 1. After the material is put into the conveying pipe 2, it can slide in the conveying pipe 2 and then enter the main body 1 by its own gravity. Due to the inclined design of the conveying pipe 2, the material can flow freely without external power, reducing energy consumption and equipment burden.
[0024] A bracket 5 is fixedly connected to one side of the main body 1, and the conveying pipe 2 is fixedly connected to the bracket 5. The bracket 5 supports the conveying pipe 2, ensuring the connection between the conveying pipe 2 and the feed inlet of the main body 1. The bracket 5 not only supports the conveying pipe 2 but also maintains a stable connection between the conveying pipe 2 and the feed inlet of the main body 1, preventing the conveying pipe 2 from loosening or deforming during use. This structural design enhances the overall stability and durability of the equipment, preventing the conveying pipe 2 from falling off or becoming misaligned during production. The support of the bracket 5 ensures that the material smoothly enters the crushing chamber through the conveying pipe 2, guaranteeing the smoothness and efficiency of the crushing process. Furthermore, the bracket 5 facilitates equipment maintenance, allowing for adjustments or replacements when necessary, reducing repair costs caused by structural problems. In summary, the bracket 5 provides structural support, preventing damage and wear caused by prolonged operation and extending the equipment's service life.
[0025] The conveying pipe 2 is used to connect material conveying equipment, such as a vibrating feeder or a screw conveyor, which are commonly used material conveying equipment. The conveying pipe 2 is connected to the discharge port of the vibrating feeder or screw conveyor. However, in actual operation, it has been found that after continuous material conveying through the conveying equipment, the material in the first stage cannot be discharged through the screen after being not completely crushed. The continuous entry of subsequent material can easily cause accumulation and blockage inside the main body 1, resulting in poor material flow. Therefore, a cutting plate 3 is slidably inserted into the upper end of the conveying pipe 2. The cutting plate 3 can close the conveying pipe 2 by sliding downward and open the conveying pipe 2 by sliding upward, allowing the material to enter the main body 1 through the conveying pipe 2.
[0026] like Figure 3As shown, multiple springs 31 are installed inside the upper part of the conveying pipe 2. These springs apply downward pressure to the cutting plate 3, causing the cutting plate 3 to close the conveying pipe 2. The springs 31 are preferably made of carbon steel, which offers advantages such as high strength and low cost, making it suitable for heavy-load applications. The fatigue life of the springs 31 decreases with prolonged use; therefore, the upper end of the conveying pipe 2 can be opened to replace the springs 31.
[0027] like Figure 4 As shown, the lower end of the cutting plate 3 is designed as a regular triangular pyramid structure with one edge facing outwards. When encountering dry and brittle materials such as corn stalks, the contact surface with the material is relatively small (just a line), which can provide greater compressive force to the material, thereby forming a shearing force that can cut the material. At this time, the lower end of the cutting plate 3 is attached to the inner wall of the conveying pipe 2, which can play a sealing role for the conveying pipe 2. The design of the spring 31 provides a uniform sealing force for the cutting plate 3. After the cutting plate 3 slides up and down, it can ensure that the flow rate of material conveyed each time can be effectively controlled and prevent too much material from entering due to excessive opening of the conveying pipe 2. However, in actual operation, it was found that the cutting plate 3 cannot cut all materials, such as materials with a certain degree of toughness (such as wheat straw or rice straw) or materials with high hardness. However, at this point, the cutting plate 3 can still prevent the material from sliding into the main body 1. This is mainly because the cutting plate 3 applies downward pressure to the material, thereby squeezing and clamping it, pressing it between the cutting plate 3 and the side wall of the conveying pipe 2, achieving a sealing effect and preventing the material from continuing to slide. The beneficial effect of this function is that even with some special materials, the system can ensure that the material conveying is not disturbed, effectively avoiding material blockage or irregular flow, thus ensuring the continuity and stability of the production process.
[0028] like Figure 4 As shown, in order to prevent the spring 31 from bending when compressed, which would affect the use of the spring 31, a limiting rod 32 is fixedly connected to the upper end of the conveying pipe 2. The limiting rod 32 is slidably inserted into the upper end of the conveying pipe 2, and the spring 31 is sleeved on the limiting rod 32. The limiting rod 32 limits the spring 31 to prevent the spring 31 from bending when it contracts.
[0029] like Figure 2 and Figure 4 As shown, the cutting plate 3 has fixedly connected paddle blocks at both ends. Slide grooves are provided on both sides of the conveying pipe 2, and the paddle blocks are slidably installed in the slide grooves, extending from the sides of the conveying pipe 2. Cams 4 are rotatably mounted on both sides of the conveying pipe 2, and the paddle blocks extending from the sides of the conveying pipe 2 contact the outer wall of the cams 4. By rotating the cams 4, the outer wall away from the rotation axis of the cams 4 can apply an upward thrust to the paddle blocks. The synchronous rotation of the two cams 4 can drive the cutting plate 3 to move stably upward.
[0030] The two cams 4 are connected to each other by a connecting rod, thus ensuring that the two cams 4 rotate synchronously. A motor is installed at the upper end of the bracket 5, and the output shaft of the motor is connected to the rotation axis of one of the cams 4. Starting the motor will drive the cam 4 to rotate.
[0031] The starting motor drives the cam 4 to rotate continuously, and the spring force applied to the cutting plate 3 by the spring 31 causes the cutting plate 3 to move up and down reciprocally within the conveying pipe 2. Compared to the continuous feeding of existing teardrop-type crushers, the reciprocating movement of the cutting plate 3 can adjust the material flow rate. Depending on the conveying requirements, the sliding cutting plate 3 can partially or completely close the conveying pipe 2, thereby regulating the amount of material passing through the conveying pipe 2, avoiding accumulation and blockage caused by excessive material, and improving production efficiency and equipment lifespan. The sliding cutting plate 3, through periodic sliding, prevents material accumulation in the conveying pipe 2, keeping the conveying pipe 2 unobstructed. By controlling the sliding frequency and range of the cutting plate 3, material conveying can be controlled, ensuring the periodicity and regularity of material conveying. This is especially important in situations where conveying needs to be time-limited or quantitative, preventing material blockage within the main body 1. This refined control method effectively reduces the uncertainty of material flow and potential failure risks, making the material conveying system more stable and reliable.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A feeding device for a teardrop-shaped pulverizer, characterized in that, include: The main body of the crusher (1); The conveying pipe (2) is connected to the upper end of the main body (1) and is inclined to convey materials into the main body (1); The material cutting plate (3) is slidably inserted into the upper end of the conveying pipe (2) to cut off the conveying of materials inside the conveying pipe (2). The material cutting plate (3) reciprocates to control the conveying frequency.
2. The feeding device for a teardrop-shaped pulverizer according to claim 1, characterized in that: A spring (31) is installed above the inside of the conveying pipe (2) to apply a downward elastic force to the cutting plate (3).
3. The feeding device for a teardrop-shaped pulverizer according to claim 2, characterized in that: The upper end of the conveying pipe (2) is fixedly connected to a limiting rod (32) to prevent the spring (31) from bending, and the limiting rod (32) is slidably inserted into the upper end of the conveying pipe (2), and the spring (31) is sleeved on the limiting rod (32).
4. The feeding device for a teardrop-shaped pulverizer according to claim 3, characterized in that: The cutting plate (3) is fixedly connected to both sides with a lever, and the lever is slidably installed on both sides of the conveying pipe (2). The conveying pipe (2) is rotatably installed with a cam (4) for sliding the lever.
5. The feeding device for a teardrop-shaped pulverizer according to claim 4, characterized in that: A linkage is connected between the two cams (4) for linkage, and the linkage is rotatably mounted at the lower end of the conveying pipe (2).
6. The feeding device for a teardrop-shaped pulverizer according to claim 5, characterized in that: A bracket (5) for supporting the conveying pipe (2) is fixedly connected to one side of the main body (1).
7. The feeding device for a teardrop-shaped pulverizer according to claim 6, characterized in that: The upper end of the bracket (5) is fixedly connected to a motor for driving the cam (4) to rotate.