A feeding device for mixing plaster.

Abstract

This utility model relates to a feeding device, providing a feeding device for mixing plaster, including a mounting frame, a storage tank, a stirring motor, and a shaft. Multiple storage tanks are mounted on the upper part of the mounting frame via buffer seats. The upper part of each storage tank is cylindrical, and the lower part is conical, wider at the top and narrower at the bottom. A stirring motor is mounted on the upper part of each storage tank. A vertically rotating shaft is mounted inside each storage tank, connected to the output shaft of the stirring motor. This utility model utilizes a spiral blade extending into the discharge pipe and continuously rotating with the shaft, along with a stirring paddle. During shaft rotation, the spiral blade discharges the raw material from the lower part of the storage tank through the discharge pipe. Simultaneously, the stirring paddle scrapes away raw material adhering to the tank wall in real time, preventing material residue accumulation. Furthermore, a vibrator on the storage tank generates high-frequency micro-vibrations, assisting the raw material in flowing to the bottom of the tank and preventing material from stagnating in the conical lower part of the storage tank.

Description

Technical Field

[0001] This utility model relates to a feeding device, and more particularly to a feeding device for mixing plaster. Background Technology

[0002] In the field of building decoration and building materials processing, plaster is a commonly used wall leveling and decorative material. Its processing quality directly affects the wall construction effect and service life. The core of plaster processing lies in mixing raw materials such as plaster powder, aggregates, and additives in precise proportions. The feeding process, as a critical step before mixing, must ensure that all raw materials are stably and evenly delivered to the mixing equipment. This avoids quality problems such as insufficient strength and easy cracking of plaster due to poor material delivery or deviations in the mixing ratio. Therefore, an efficient and reliable feeding device is of great significance for ensuring the processing efficiency and product quality of plaster.

[0003] In existing technologies, the conventional process of feeding devices for plastering mixing is as follows: plaster powder, aggregates, and other raw materials are stored separately in silos. A discharge valve is installed at the bottom of the silo, and the raw materials fall directly into the conveying pipeline (or conveyor belt) through the discharge valve. The conveying pipeline transports the raw materials to the inlet of the mixing equipment. Some devices will install a simple guide plate or conveyor hopper at the end of the conveying pipeline to guide the raw materials into the mixing equipment. This can realize the initial conveying of plastering raw materials from the storage stage to the mixing stage, and feed different raw materials into the mixing equipment in sequence or simultaneously to provide raw material supply for subsequent mixing processes. This avoids the interruption of the mixing process due to low efficiency and high labor intensity of manual feeding, and ensures the basic continuity of the plastering processing flow.

[0004] However, existing technologies have obvious process and structural defects in practical applications, which adversely affect plaster processing: From a structural design perspective, there is no anti-clogging structure at the connection between the silo discharge valve and the conveying pipeline. The plaster powder in the plaster raw material is prone to slight clumping due to moisture, or there may be a small amount of impurities in the aggregate, leading to bridging or blockage at the connection. Frequent manual intervention is required, which not only interrupts the feeding process and reduces processing efficiency, but also increases the labor intensity of operators. Some equipment is equipped with an arch breaker at the connection, which agitates the material at the connection through the rotation of the components on it to accelerate the discharge of the material. However, its effect is limited, and it can only act on the material in the outlet area. It cannot effectively act on the material outside the working range of the arch breaker or the material adhering to the inner wall of the silo, which means that the raw material cannot fall into the mixing component quickly. It is necessary to extend the mixing time to ensure that the raw material is mixed evenly. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the objective is to provide a feeding device for mixing plaster.

[0006] The technical solution of this utility model is: a feeding device for mixing plaster, comprising a mounting frame, storage tanks, a mixing motor, a shaft, a spiral strip, a mixing paddle, a mixing frame, a discharge pipe, a valve body, a vibrator, a conveying pipe, a conveying component, and a discharge pipe. Multiple storage tanks are mounted on the upper part of the mounting frame via buffer seats. The upper part of each storage tank is cylindrical, and the lower part is conical, wider at the top and narrower at the bottom. A mixing motor is mounted on the upper part of each storage tank. A shaft is vertically and rotatably mounted inside each storage tank, connected to the output shaft of the mixing motor. A spiral strip is mounted on the lower part of each shaft. A discharge pipe is connected to and communicates with the lower part of each storage tank, and the spiral strip extends into one of the adjacent tanks. Inside the discharge pipe, a stirring paddle is mounted on the shaft, and a stirring frame is mounted on the stirring paddle. The stirring motor drives the shaft to rotate, which in turn drives the spiral blades and the stirring paddle to rotate. When the stirring paddle rotates, it slides in contact with the inner wall of the storage tank. A vibrator is mounted on the tank body. A conveying pipe is horizontally mounted between the lower ends of the discharge pipe. The conveying pipe is fixedly connected to the mounting frame. A valve body is mounted on each part of the discharge pipe. The end of the conveying pipe extends to the external gypsum mixing station. A conveying component is mounted inside the conveying pipe. The conveying component consists of a conveying motor and a spiral blade arranged along the length of the conveying pipe. One end of the conveying pipe is connected to and communicates with the discharge pipe.

[0007] To further explain, the buffer seat includes a base, a connecting block, and a buffer spring. There are multiple base bodies, all of which are fixedly mounted on the mounting frame. Each base body has a connecting block that is slidably mounted inside it. The top of the connecting block is fixedly connected to the bottom of the adjacent storage tank, and the connecting block slides up and down along the inside of the base. Each base is equipped with a buffer spring, and both ends of the buffer spring abut against the connecting block of the base. The buffer spring is always in a compressed state.

[0008] To further explain, it also includes connecting hoses; connecting hoses are provided at the connection points between the storage tank and the discharge pipe.

[0009] Further explanation: It also includes a fixed plate, a push rod, a return spring, and a guide block. The lower part of the discharge pipe is equipped with a fixed plate. The fixed plate has a triangular cross-section with its vertex facing upward. The fixed plate is equipped with a push rod, which is concentric with the discharge pipe. The top of the push rod is equipped with a return spring, and the top of the return spring is equipped with a guide block, which is inverted conical in shape.

[0010] To further explain, it also includes raised ridges; multiple raised ridges are provided circumferentially on the conical surface of the guide block.

[0011] The beneficial effects of this utility model are: 1. This utility model uses a spiral strip and a stirring paddle that extend into the discharge pipe and rotate continuously with the shaft. During the rotation of the shaft, the spiral strip discharges the raw material at the bottom of the storage tank through the discharge pipe. At the same time, the stirring paddle can scrape off the raw material adhering to the tank wall in real time, avoiding the accumulation of raw material residue. The vibrator on the storage tank body generates high-frequency micro-vibration to assist the raw material in the tank to flow to the bottom, avoiding the raw material from stagnating in the conical lower part of the storage tank.

[0012] 2. When the raw material enters the discharge pipe from the conveying pipe, it first impacts the inverted cone-shaped guide block. After being pressed, the guide block moves downward and compresses the return spring. The return spring buffers the impact force of the raw material through elastic deformation, avoiding the raw material from concentrating and impacting the external stirring equipment. At the same time, the inverted cone-shaped structure can guide the raw material to disperse to the inner wall of the discharge pipe. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a cross-sectional three-dimensional structural diagram of a partial component of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the stirring mechanism of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the fixing plate, the top rod, and the guide block.

[0017] In the attached diagram, the following are the reference numerals: 1_mounting bracket, 2_storage tank, 21_base, 22_connecting block, 23_buffer spring, 3_stirring motor, 31_shaft, 32_spiral blade, 33_stirring paddle, 34_stirring frame, 4_discharge pipe, 41_valve body, 5_vibrator, 51_connecting hose, 6_feeding pipe, 61_conveying component, 62_discharge pipe, 7_fixed plate, 71_top rod, 711_reset spring, 72_guide block, 721_protruding ridge. Detailed Implementation

[0018] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0019] Example 1 A feeding device for mixing plaster, such as Figure 1-4As shown, the system includes a mounting frame 1, storage tanks 2, a stirring motor 3, a shaft 31, a spiral blade 32, a stirring paddle 33, a stirring frame 34, a discharge pipe 4, a valve body 41, a vibrator 5, a conveying pipe 6, a conveying component 61, and a discharge pipe 62. The mounting frame 1 is a metal frame structure used to support the core components of the entire device. Multiple storage tanks 2 are mounted on the upper part of the mounting frame 1 via buffer seats. These storage tanks 2 are used to store different raw materials such as gypsum powder, aggregates, and additives. The upper part of each storage tank 2 is cylindrical to increase the storage capacity, while the lower part is conical, wider at the top and narrower at the bottom, allowing the raw materials to fall under their own weight and preventing accumulation inside the tank. A stirring motor 3 is bolted to the upper part of each storage tank 2. The stirring motor 3 is electrically connected to an external control system. The operator can control the start, stop, and speed of the stirring motor 3 through the control system. Each storage tank 2 has a vertically mounted shaft 31 that rotates via bearings. The top of the shaft 31 is fixedly connected to the output shaft of the stirring motor 3 via a coupling, ensuring that the stirring motor 3 can stably drive the shaft 31 to rotate. Each shaft 31 has a welded spiral strip 32 at its lower part. The pitch of the spiral strip 32 is adapted to the conical structure at the bottom of the storage tank 2. Each storage tank 2 has a flange connecting to a discharge pipe 4, which is used to discharge the raw material from the storage tank 2. The spiral strip 32 extends into an adjacent discharge pipe 4. When the shaft 31 rotates, it drives the spiral strip 32 to rotate synchronously, pushing the raw material in the lower part of the storage tank 2 and the discharge pipe 4 downwards, preventing blockage at the inlet of the discharge pipe 4. A stirring paddle 33 is welded onto the shaft 31. The stirring paddle 33 is a metal plate structure. A stirring frame 34 is welded onto the stirring paddle 33. The stirring frame 34 is composed of multiple intersecting metal rods, which can enhance the stirring effect on the raw materials. The stirring motor 3 drives the shaft 31 to rotate, which in turn drives the spiral strip 32 and the stirring paddle 33 to rotate. When the stirring paddle 33 rotates, its edge slides into contact with the inner wall of the storage tank 2, which can scrape off the raw materials adhering to the inner wall of the storage tank 2, avoiding the adhesion and residual lumps of raw materials. The stirring frame 34 rotates synchronously to stir the raw materials in the storage tank 2, further preventing the raw materials from agglomerating and lumping. A vibrator 5 is fixed to the outside of the storage tank 2 by bolts. The vibrator 5 is electrically connected to an external control system. The control system can control the vibrator according to the feeding status of the storage tank 2. 5. Start / Stop: When vibrator 5 is working, it generates high-frequency micro-vibrations, assisting the raw materials in storage tank 2 to flow to the bottom. Combined with the pushing action of the spiral strip, this ensures smooth material descent. A conveying pipe 6 is horizontally welded between the lower ends of the discharge pipes 4. The conveying pipe 6 is fixedly connected to the mounting frame 1 via a bracket to ensure stable fixation. The conveying pipe 6 is used to collect different raw materials conveyed by each discharge pipe 4. Each discharge pipe 4 is equipped with a valve body 41, which is a solenoid valve and electrically connected to an external control system. Operators can independently control the opening degree and on / off timing of each valve body 41 according to the raw material mixing requirements through the external control system, achieving precise adjustment of the conveying volume of different raw materials. The end of the conveying pipe 6 extends to the external gypsum mixing station. A conveying component 61 is installed inside the conveying pipe 6.The conveying unit 61 consists of a conveying motor and a spiral blade arranged along the length of the conveying pipe 6. The conveying motor is fixed to one end of the conveying pipe 6 by a bracket. The spiral blade is rotatably assembled inside the conveying pipe 6 via bearings, and one end of the spiral blade is fixedly connected to the output shaft of the conveying motor via a coupling. The conveying motor is electrically connected to an external control system, which can control the speed of the conveying motor, thereby adjusting the conveying speed of the spiral blade to ensure stable delivery of the mixed raw materials in the conveying pipe 6 to the end. A discharge pipe 62 is connected to one end of the conveying pipe 6 via a flange. The discharge pipe 62 guides the mixed raw materials in the conveying pipe 6 to external mixing equipment, preventing spillage during the conveying process.

[0020] Among them, such as Figure 1 and Figure 2 As shown, the buffer seat includes a base 21, a connecting block 22, and a buffer spring 23. Multiple bases 21 are provided, all fixed to the mounting frame 1 by bolts. Each base 21 has a vertical groove, within which a connecting block 22 slides. The top of the connecting block 22 is fixed to the bottom of the adjacent storage tank 2 by bolts. The connecting block 22 can slide up and down along the groove within the base 21. Each base 21 is equipped with a buffer spring 23, which is fitted into the groove of the base 21. Both ends of the buffer spring 23 abut against the bottom of the groove of the base 21 and the bottom of the connecting block 22, respectively. The buffer spring 23 is always in a compressed state. When the storage tank 2 vibrates due to the operation of the vibrator 5 or the falling material, the connecting block 22 moves up and down along the groove of the base 21. The buffer spring 23 absorbs vibration energy through deformation, reducing the transmission of vibration from the storage tank 2 to the mounting frame 1, thereby reducing the impact of vibration on the stability of other components and ensuring the smooth operation of the entire device.

[0021] like Figure 1 and Figure 2 As shown, it also includes a connecting hose 51. The connection between the storage tank 2 and the discharge pipe 4 is provided with a connecting hose 51. The connecting hose 51 is made of food-grade rubber and has good flexibility and sealing performance. The upper end of the connecting hose 51 is fixedly connected to the discharge port at the bottom of the storage tank 2 by a clamp, and the lower end is fixedly connected to the upper end of the discharge pipe 4 by a clamp. The connecting hose 51 is connected to the internal space of the storage tank 2 and the discharge pipe 4 to ensure smooth passage of raw materials. Because the connecting hose 51 is flexible, it can isolate the vibration of the storage tank 2 generated by the vibrator 5 from being transmitted to the discharge pipe 4, thereby preventing the vibration from being transmitted to the conveying pipe 6 and preventing the conveying component 61 in the conveying pipe 6 from becoming unstable due to vibration. At the same time, it prevents the vibration from causing the seal at the connection between the conveying pipe 6 and the discharge pipe 4 to fail, preventing raw material leakage and dust pollution.

[0022] Initially, the operator puts various raw materials for plastering (such as plaster powder, aggregate, and additives) into the corresponding storage tank 2. The cylindrical structure at the top of the storage tank 2 enables the storage of a large amount of raw materials, while the conical structure at the bottom helps the raw materials to gather at the bottom of the tank by their own gravity, preparing for subsequent feeding.

[0023] When it is necessary to feed materials to external mixing equipment, the operator starts the mixing motor 3 on the upper part of each storage tank 2 through the external control system. The mixing motor 3 drives the shaft 31 to rotate. The shaft 31 synchronously drives the lower spiral strip 32, the middle mixing paddle 33 and the mixing frame 34 to rotate. During the rotation of the mixing paddle 33, it slides and contacts the inner wall of the storage tank 2 to scrape off the raw materials adhering to the tank wall and avoid the raw materials from clumping. The mixing frame 34 cross-mixes the raw materials in the tank to further break the tendency of raw materials to agglomerate and prevent clumping. At the same time, the control system can start the vibrator 5 on the outside of the tank according to the material feeding situation of the storage tank 2. The vibrator 5 generates high-frequency micro-vibration, which, together with the spiral strip 32, pushes the raw materials at the bottom of the tank and in the discharge pipe 4 downward to ensure that the raw materials fall smoothly into the discharge pipe 4 and avoid blockage of the inlet of the discharge pipe 4.

[0024] Subsequently, the control system independently controls the opening degree and timing of valves 41 on each discharge pipe 4 according to the raw material ratio requirements of the plaster. When a certain type of raw material needs to be transported, the corresponding valve 41 opens, and the raw material flows through the discharge pipe 4 to the conveying pipe 6. When no transport is needed, the valve 41 closes, achieving precise adjustment of the conveying amount of different raw materials. During this process, the connecting hose 51 at the connection between the storage tank 2 and the discharge pipe 4 uses its flexibility to isolate the vibration of the storage tank 2 caused by the vibrator 5 from being transmitted to the discharge pipe 4, avoiding the vibration from affecting the stability of the conveying pipe 6. At the same time, the buffer seat between the mounting frame 1 and the storage tank 2 absorbs the vibration of the storage tank 2 through the deformation of the buffer spring 23, further ensuring the smooth operation of the entire device.

[0025] When a single raw material is collected in the conveying pipe 6, the control system starts the conveying motor at one end of the conveying pipe 6. The conveying motor drives the spiral blades inside the conveying pipe 6 to rotate. The spiral blades steadily convey the mixed raw material to the end along the length of the conveying pipe 6. Finally, the raw material is guided through the discharge pipe 62 at the end of the conveying pipe 6 and falls smoothly into the external mixing equipment, completing the entire feeding process. If continuous feeding is required, the above steps can be repeated; once feeding is complete, the control system sequentially shuts down the mixing motor 3, vibrator 5, conveying motor, and each valve body 41, and the device returns to its initial state.

[0026] Example 2 Based on Example 1, such as Figure 2 and Figure 4As shown, it also includes a fixed plate 7, a push rod 71, a return spring 711, and a guide block 72. The fixed plate 7 is fixedly welded to the lower part of the discharge pipe 62. The fixed plate 7 has a triangular cross-section with its vertex facing upward. The triangular structure can enhance the support stability of the fixed plate 7 in the discharge pipe 62 and prevent the fixed plate 7 from shifting due to the impact of raw materials. The push rod 71 is fixed to the fixed plate 7 by bolts. The push rod 71 is concentric with the discharge pipe 62 to ensure that the subsequent components are evenly stressed. The return spring 711 is fixed to the top of the push rod 71 by hooks or welding. The guide block 72 is fixed to the top of the return spring 711 by bolts. The guide block 72 is inverted conical and its outer diameter is slightly smaller than that of the return spring 711. The inner diameter of the discharge pipe 62 is such that it does not affect the passage of raw materials while ensuring sufficient contact with the falling materials. When the raw materials enter the discharge pipe 62 from the conveying pipe 6 and flow downwards, they first impact the inverted conical surface of the guide block 72. After being compressed, the guide block 72 moves downwards, simultaneously compressing the return spring 711. The return spring 711 absorbs the kinetic energy of the impact of the raw materials through its own elastic deformation, slowing down the falling speed of the raw materials and preventing the raw materials from splashing due to high-speed impact on the external mixing equipment. At the same time, the inverted conical guide block 72 can disperse the concentrated falling raw materials to the inner wall of the discharge pipe 62, so that the raw materials fall evenly into the mixing equipment, reducing the local accumulation of raw materials in the mixing equipment and reducing the difficulty of subsequent mixing.

[0027] Among them, such as Figure 4 As shown, it also includes protruding ridges 721. Multiple protruding ridges 721 are integrally formed on the conical surface of the guide block 72 along the circumference. The protruding ridges 721 are elongated and extend obliquely along the conical surface of the guide block 72. When the raw material slides along the conical surface of the guide block 72, the protruding ridges 721 can further divide the raw material, prevent the raw material from agglomerating into clumps due to stickiness, and enhance the dispersion effect of the raw material. At the same time, the protruding ridges 721 can reduce the contact area between the raw material and the conical surface of the guide block 72, reduce the probability of the raw material adhering to the surface of the guide block 72, and ensure that the raw material can smoothly slide to the bottom of the discharge pipe 62, reducing the waste of raw material residue. In addition, the protruding ridges 721 can also enhance the structural strength of the guide block 72, prevent the guide block 72 from deforming due to long-term impact of raw material, and extend its service life.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A feeding device for mixing plaster, comprising a mounting frame (1); Its features are: It also includes a storage tank (2), a stirring motor (3), a shaft (31), a spiral strip (32), a stirring paddle (33), a stirring frame (34), a discharge pipe (4), a valve body (41), a vibrator (5), a conveying pipe (6), a conveying component (61), and a discharge pipe (62). The upper part of the mounting frame (1) is equipped with multiple storage tanks (2) through a buffer seat. The upper part of the storage tank (2) is cylindrical, and the lower part is conical with a larger upper part and a smaller lower part. The upper part of the storage tank (2) is equipped with a stirring motor (3). The storage tank (2) is vertically and rotatably equipped with a shaft (31). The shaft (31) is connected to the output shaft of the stirring motor (3). The lower part of the shaft (31) is equipped with a spiral strip (32). The lower part of the storage tank (2) is connected to and communicates with a discharge pipe (4). The spiral strip (32) extends into one of the nearest discharge pipes (4). The shaft (31) is equipped with There is a stirring paddle (33), and a stirring frame (34) is provided on the stirring paddle (33). The stirring motor (3) drives the shaft (31) to rotate, which in turn drives the spiral strip (32) and the stirring paddle (33) to rotate. When the stirring paddle (33) rotates, it slides in contact with the inner wall of the storage tank (2). The tank body of the storage tank (2) is provided with a vibrator (5). A conveying pipe (6) is provided horizontally between the lower ends of the discharge pipe (4). The conveying pipe (6) is fixedly connected to the mounting frame (1). A valve body (41) is provided on the pipeline of the discharge pipe (4). The end of the conveying pipe (6) extends to the external gypsum mixing station. A conveying component (61) is provided inside the conveying pipe (6). The conveying component (61) consists of a conveying motor and a spiral blade arranged along the length of the conveying pipe (6). The end of the conveying pipe (6) is connected to and communicates with a discharge pipe (62).

2. The feeding device for mixing plaster of powder as described in claim 1, characterized in that: The buffer seat includes a base (21), a connecting block (22) and a buffer spring (23). The base (21) body has multiple components, all of which are fixedly mounted on the mounting frame (1). Each base (21) body has a sliding connecting block (22). The top of the connecting block (22) is fixedly connected to the bottom of the adjacent storage tank (2). The connecting block (22) slides up and down along the inside of the base (21). Each base (21) is provided with a buffer spring (23), and both ends of the buffer spring (23) abut against the connecting block (22) of the base (21). The buffer spring (23) is always in a compressed state.

3. The feeding device for mixing plaster of powder as described in claim 2, characterized in that: It also includes a connecting hose (51), and the connection between the storage tank (2) and the discharge pipe (4) is provided with a connecting hose (51).

4. The feeding device for mixing plaster of powder as described in claim 3, characterized in that: It also includes a fixed plate (7), a push rod (71), a reset spring (711) and a guide block (72). The lower part of the discharge pipe (62) is provided with a fixed plate (7). The fixed plate (7) has a triangular cross section with its vertex facing upward. The fixed plate (7) is provided with a push rod (71). The push rod (71) is concentric with the discharge pipe (62). The top of the push rod (71) is provided with a reset spring (711). The top of the reset spring (711) is provided with a guide block (72). The guide block (72) is inverted cone shape.

5. The feeding device for mixing plaster of powder as described in claim 4, characterized in that: It also includes protruding ridges (721), and multiple protruding ridges (721) are provided circumferentially on the conical surface of the guide block (72).

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