Feeding device for concrete mixer

Abstract

The utility model discloses a feeding device for a concrete mixer. The feeding device comprises a support, a storage assembly is arranged on the support, the storage assembly comprises a box body, a hopper is arranged in the box body in a sliding connection mode in the vertical direction, a conveying structure is arranged on the left portion of the hopper, a discharging opening is formed in the right portion of the conveying structure, and a material guide plate is arranged on the support and arranged below the discharging opening. A feeding assembly is further arranged on the support and comprises a shell connected with the material guide plate, a main shaft is rotationally installed on the shell, a shifting rod is fixedly installed on the main shaft, a material distributing plate is further arranged at a discharging opening in the right portion of the hopper, and the shifting rod is used for shifting materials on the material distributing plate; the support is further provided with a conveying belt, and the conveying belt is located below the material guiding plate and the material distributing plate and used for bearing falling materials. Through cooperation of motor driving and a mechanical structure, the automatic process from storage to conveying of concrete raw materials is achieved, the feeding efficiency is improved, and the requirement for continuous operation of the concrete mixer is met.

Description

Technical Field

[0001] This utility model relates to the field of concrete construction technology, specifically to a feeding device for a concrete mixer. Background Technology

[0002] Concrete, as an indispensable basic material in modern construction engineering, is widely used in the construction of various building structures. From the main framework of skyscrapers to the construction of infrastructure such as bridges and roads, concrete, with its advantages of low cost, high plasticity, and high strength, has become a key factor in ensuring project quality and safety. With the acceleration of urbanization and the continuous advancement of infrastructure construction, the demand for concrete is showing a steady upward trend, which also places higher demands on the performance and efficiency of concrete production equipment.

[0003] In early concrete production, manual feeding was a common method. Workers had to manually transport raw materials such as sand, gravel, and cement to the mixer, and then pour them into the mixer using simple tools. This method not only consumed a lot of manpower and time, but was also labor-intensive, severely impacting concrete production efficiency. Furthermore, the uncertainty of manual operation made it difficult to guarantee the accuracy and consistency of each feeding, easily leading to deviations in the concrete mix design and affecting concrete quality. Moreover, the raw materials for concrete often contained large, clump-together particles that could not be fully mixed when directly fed into the mixing plant, affecting the concrete strength. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for a concrete mixer, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a feeding device for a concrete mixer, which adopts the following technical solution:

[0006] A feeding device for a concrete mixer includes a support frame, a storage component on the support frame, a storage component including a box, a hopper slidably connected in the vertical direction inside the box, a conveying structure on the left side of the hopper, a discharge port on the right side of the conveying structure, and a guide plate on the support frame, the guide plate being positioned below the discharge port.

[0007] The support is also equipped with a feeding assembly, which includes a housing connected to the guide plate, a main shaft rotatably mounted on the housing, a lever fixedly mounted on the main shaft, and a distribution plate at the right discharge port of the hopper. The lever is used to move the material on the distribution plate.

[0008] The support frame is also equipped with a conveyor belt, which is located below the guide plate and the distribution plate to catch the falling materials.

[0009] A further improvement of the feeding device for a concrete mixer of this utility model is that a first motor is also provided on the support, the output end of the first motor is provided with a main belt pulley, the main shaft is provided with a secondary belt pulley, and a belt is provided between the main belt pulley and the secondary belt pulley for transmission.

[0010] A further improvement of the feeding device for a concrete mixer of this utility model is that a baffle is provided inside the shell, and a connecting rod is passed through the shell. The connecting rod is hinged to the lower end of the baffle. A first spring is sleeved on the connecting rod. One end of the first spring abuts against the hinge point between the connecting rod and the baffle, and the other end abuts against the shell. The connecting rod is threaded and a limit block is connected to the thread. The limit block is placed on the outside of the shell.

[0011] A further improvement of the feeding device for a concrete mixer of this utility model is that a second motor is provided at the bottom of the hopper, and the second motor is connected to an eccentric wheel, and the eccentric wheel does not contact the bottom of the hopper.

[0012] A further improvement of the feeding device for a concrete mixer of this utility model is that a second spring is also provided on the support. The second spring is arranged vertically and its upper end is connected to the bottom of the hopper.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, through the combination of motor drive and mechanical structure, automates the process of concrete raw material storage and transportation, improving feeding efficiency and meeting the needs of continuous operation of concrete mixers. The design of the distribution plate and lever allows for precise control of the amount of material conveyed each time, ensuring the accuracy of the raw material ratio during concrete mixing. The adjustable baffle structure allows for flexible control of material flow to adapt to different production needs. The vibration discharge design of the storage component, combined with spring assistance, ensures that material does not clog the hopper, guaranteeing stable feeding. The belt drive structure provides smooth transmission, reduces equipment failures, and extends equipment lifespan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of section AA of the present invention.

[0019] In the diagram: 100, storage assembly; 101, support frame; 102, housing; 103, hopper; 104, guide plate; 105, second motor; 106, eccentric wheel; 107, second spring; 108, conveying structure; 109, discharge port; 200, feeding assembly; 201, housing; 202, main shaft; 203, lever; 204, distribution plate; 205, first motor; 206, main pulley; 207, auxiliary pulley; 208, belt; 209, baffle; 210, connecting rod; 211, first spring; 212, limit block; 213, conveyor belt. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 4 As shown, a feeding device for a concrete mixer includes a support 101, a storage component 100 on the support, a box 102, a hopper 103 slidably connected in the vertical direction inside the box, the bottom of the hopper is sealed, a conveying structure 108 is provided on the left side of the hopper, a discharge port 109 is provided on the right side of the conveying structure, a discharge section is provided at the bottom of the hopper below the discharge port, and a guide plate 104 is provided on the support, the guide plate is placed below the discharge port and the discharge section;

[0022] The support is also equipped with a feeding assembly 200, which includes a housing 201 connected to the guide plate, a main shaft 202 rotatably mounted on the housing, a lever 203 fixedly mounted on the main shaft, and a material distribution plate 204 at the discharge port on the right side of the hopper. The lever is used to move the material on the material distribution plate.

[0023] The support frame is also equipped with a conveyor belt 213, which is located below the guide plate and the distribution plate to receive falling materials.

[0024] Specifically, the support frame 101 provides structural support, and the box 102 fixedly installed on its top is used to store concrete raw materials. The bottom of the box 102 is movably connected to the hopper 103 for easy discharge and control of raw materials. The guide plate 104 fixed to the side wall of the support frame 101, with one end connected to the side wall of the hopper 103, guides the raw materials from the hopper 103 to the subsequent feeding assembly 200. The guide plate 104 is fixedly installed on the side wall of the guide plate 104 to provide protection and support for the internal structure of the feeding assembly. The housing 201 encloses key components such as the main shaft 202 and the lever 203. The inner casing prevents external impurities from entering and affecting the normal operation of the equipment, and also plays a certain safety protection role, preventing operators from coming into contact with dangerous parts during equipment operation. The main shaft 202 is connected to the housing 201 through bearings and other components, ensuring that it can rotate flexibly within the housing. Driven by the power source, the main shaft 202 can rotate at high speed, providing power support for the movement of the lever 203. The lever 203 is fixedly installed on the side wall of the main shaft 202 and rotates with the rotation of the main shaft 202. The end of the lever 203 is located at the material distribution plate 204. Inside the middle slot, its function is to evenly distribute the concrete raw materials from the guide plate 104 onto the conveyor belt during rotation, separating large particles that are stuck together to prevent them from not mixing properly and affecting the concrete strength. The distribution plate 204 is fixedly connected to the end of the hopper 103. The slot in the middle of the distribution plate 204 is adapted to the end of the lever 203. The main function of the distribution plate 204 is to cooperate with the lever 203 to divert and control the raw materials, so that the raw materials can be distributed onto the conveyor belt according to a certain pattern and speed, ensuring that the amount of material conveyed each time is relatively uniform, thereby ensuring the accuracy of the raw material ratio during concrete mixing. The conveyor belt 213 is fixedly installed in the middle of the bracket 101, with its end connected to the guide plate 104. The conveyor belt 213 is the key component responsible for conveying materials in the entire feeding device. It is driven by a motor or other drive device to achieve continuous operation. The surface of the conveyor belt 213 usually has a certain friction to ensure that the concrete raw materials can be stably transmitted on its surface, conveying the raw materials from the lever 203 to the concrete mixer, completing the entire feeding process.

[0025] Furthermore, the bracket is also equipped with a first motor 205, the output end of the first motor is equipped with a main belt pulley 206, the main shaft is equipped with a secondary belt pulley 207, and a belt 208 is provided between the main belt pulley and the secondary belt pulley for transmission.

[0026] Specifically, a main belt pulley 206 is fixedly mounted on the output end of the first motor 205. When the motor starts, the main belt pulley 206 rotates at high speed. A secondary belt pulley 207 is mounted on the end of the main shaft 202. The main and secondary belt pulleys are connected by a belt 208 adapted to be mounted on their side walls. This belt drive method has the advantages of simple structure, low cost, smooth transmission, and vibration damping. Through the belt 208, the rotational power of the main belt pulley 206 is transmitted to the secondary belt pulley 207, which in turn drives the main shaft 202 to rotate, providing power for the rotation of the lever 203, enabling the lever to evenly push the material onto the conveyor belt.

[0027] Furthermore, a baffle 209 is provided inside the housing, and a connecting rod 210 passes through the housing. The connecting rod is hinged to the lower end of the baffle, and a first spring 211 is sleeved on the connecting rod. One end of the first spring abuts against the hinge point between the connecting rod and the baffle, and the other end abuts against the housing. The connecting rod is threaded, and a limit block 212 is connected to the threaded connection. The limit block is located on the outside of the housing. The baffle 209 is rotatably installed on the lower side wall of the housing 201. The function of the baffle 209 is to control the flow rate of the material. The connecting rod 210 is hinged to the side wall of the baffle 209, and the end of the connecting rod 210 is inserted into the side wall of the housing 201, forming a movable connection structure. When it is necessary to adjust the opening angle of the baffle 209, the connecting rod 210 will move with the rotation of the baffle. Through this hinged and inserted connection method, the baffle 209 can rotate flexibly, achieving preliminary control of the material flow rate. The first spring 211 acts as a buffer and regulator. When the baffle 209 is impacted by materials or manually adjusted, the first spring 211 can absorb part of the impact force, preventing the baffle 209 from being damaged due to excessive instantaneous force. Simultaneously, the elastic force of the first spring 211 also helps the baffle 209 maintain a certain open / closed position, making the control of material flow more stable. For example, when the material flow is large, the impact force on the baffle 209 will compress the first spring 211, reducing the opening / closing angle of the baffle 209 and thus reducing the material flow; conversely, when the material flow is small, the elastic force of the first spring 211 will cause the baffle 209 to open appropriately, increasing the material flow. By rotating the limiting block 212, its position on the connecting rod 210 can be adjusted, thereby changing the preload of the first spring 211. When the limiting block 212 rotates towards the housing, the first spring 211 is further compressed, increasing the preload, making it more difficult to change the opening angle of the baffle 209, and resulting in more precise material flow control. When the limiting block 212 rotates away from the housing, the preload of the first spring 211 decreases, making it easier to change the opening angle of the baffle 209, adapting to different material flow requirements. This design allows operators to flexibly adjust the material flow according to actual production conditions, improving the applicability of the feeding device.

[0028] A second motor 105 is installed at the bottom of the hopper, connected to an eccentric wheel 106, which does not contact the bottom of the hopper. A second spring is also installed on the support, vertically arranged, with its upper end connected to the bottom of the hopper. When the second motor 105 starts, it drives the eccentric wheel 106 to rotate at high speed. Because the center of gravity of the eccentric wheel 106 is off-center from the center of rotation, centrifugal force is generated during rotation, causing the hopper 103 to vibrate. This vibration effectively prevents concrete materials from clumping or clogging in the hopper, facilitating the smooth discharge of materials from the hopper. For example, for some highly viscous concrete materials, the vibration generated by the eccentric wheel 106 can help them flow smoothly to the guide plate 104, ensuring the continuity of the feeding process. The second spring 107 works together with the eccentric wheel 106 to assist the hopper in vibrating unloading. When the eccentric wheel 106 causes the hopper to vibrate, the second spring 107 will extend and retract with the vibration of the hopper. The elastic force of the second spring 107 can enhance the vibration effect of the hopper, making it easier for the raw material to be discharged from the hopper. At the same time, the second spring 107 can also play a buffering role, reducing the impact of the hopper vibration on the support 101 and protecting the structural stability of the support and the entire material storage assembly.

[0029] The working principle of this utility model is as follows: During use, concrete raw materials are pre-stored in the box 102. When feeding is required, the second motor 105 at the bottom of the hopper 103 is started, driving the eccentric wheel 106 to rotate. The eccentric movement of the eccentric wheel causes the hopper 103 to vibrate with the assistance of the second spring 107, causing the raw materials in the box 102 to fall smoothly into the hopper 103. Then, through the connection between the hopper 103 and the guide plate 104, the materials flow to the feeding assembly 200. Then, the first motor 205 is started, and the main belt pulley 206 follows the output shaft of the first motor 205. The rotation of the main shaft 202, via the belt 208 driving the auxiliary belt pulley 207, causes the main shaft 202 to rotate. The lever 203 fixed on the main shaft rotates accordingly, moving within the slot of the material distribution plate 204, evenly distributing the material from the guide plate 104 onto the conveyor belt. The conveyor belt 213 continues to rotate, transporting the material to the concrete mixer. The baffle 209 can rotate under the action of the connecting rod 210 and the first spring 211. By adjusting the limit block 212, the preload of the first spring 211 can be changed, thereby controlling the opening and closing degree of the baffle and adjusting the material flow rate.

[0030] In summary, through the combination of motor drive and mechanical structure, an automated process from storage to transportation of concrete raw materials is achieved, improving feeding efficiency and meeting the needs of continuous operation of concrete mixers. The design of the distribution plate and lever allows for precise control of the amount of material conveyed each time, ensuring the accuracy of the raw material ratio during concrete mixing; the adjustable baffle structure allows for flexible control of material flow to adapt to different production needs. The vibration discharge design of the storage component, combined with spring assistance, ensures that material does not clog in the hopper, guaranteeing the stability of the feeding process; the belt drive structure provides smooth transmission, reduces equipment failures, and extends the service life of the equipment.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A feeding device for a concrete mixer, characterized in that: The system includes a support frame, on which a storage assembly is provided. The storage assembly includes a box, and inside the box is a hopper that is slidably connected in the vertical direction. A conveying structure is provided on the left side of the hopper, and a discharge port is provided on the right side of the conveying structure. A guide plate is provided on the support frame and is positioned below the discharge port. The support is also equipped with a feeding assembly, which includes a housing connected to the guide plate, a main shaft rotatably mounted on the housing, a lever fixedly mounted on the main shaft, and a distribution plate at the right discharge port of the hopper. The lever is used to move the material on the distribution plate. The support frame is also equipped with a conveyor belt, which is located below the guide plate and the distribution plate to receive falling materials.

2. The feeding device for a concrete mixer according to claim 1, characterized in that: The bracket is also equipped with a first motor, the output end of which is equipped with a main belt pulley, and the main shaft is equipped with a secondary belt pulley. A belt is provided between the main belt pulley and the secondary belt pulley for transmission.

3. The feeding device for a concrete mixer according to claim 2, characterized in that: The housing is provided with a baffle, and a connecting rod is passed through the housing. The connecting rod is hinged to the lower end of the baffle. A first spring is sleeved on the connecting rod. One end of the first spring abuts against the hinge point between the connecting rod and the baffle, and the other end abuts against the housing. The connecting rod is provided with threads, and a limit block is connected to the threads. The limit block is placed on the outside of the housing.

4. A feeding device for a concrete mixer according to claim 3, characterized in that: The bottom of the hopper is equipped with a second motor, which is connected to an eccentric wheel. The eccentric wheel is in contact with the bottom of the hopper through a gap.

5. A feeding device for a concrete mixer according to claim 4, characterized in that: The support is also equipped with a second spring, which is vertically arranged and its upper end is connected to the bottom of the hopper.

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