Concrete filler dispensing device

Abstract

The utility model relates to building material conveying equipment technical field, concretely relates to a kind of blanking device for quantitative conveying filler in concrete production process;A kind of concrete filler blanking device, including frame body, the frame body upper portion is arranged with the hopper of containing concrete filler, the hopper upper portion has feed inlet, the hopper lower portion has discharge port, the frame body upper portion is arranged with the conveying belt for conveying concrete filler in discharge port position, the mobile path is formed in the process that the concrete filler falls to the conveying belt by the hopper, the mobile path is arranged with the impeller of quantitative blanking by driving mechanism, the frame body upper portion is arranged with the sensor of supporting hopper, the sensor is used to detect whether the remaining amount inside hopper satisfies the quantitative blanking demand of impeller.

Description

Technical Field

[0001] This utility model relates to the field of building material conveying equipment technology, specifically to a material feeding device for quantitatively conveying fillers in the concrete production process. Background Technology

[0002] Concrete filler discharge devices are key equipment in concrete production, used to quantitatively transport fillers (such as aggregates and powders) from the hopper to subsequent processes. Traditional discharge devices rely primarily on manual observation or simple mechanical indicators to monitor the remaining filler quantity inside the hopper, lacking real-time and accurate detection methods. This makes it difficult for operators to accurately determine the actual amount of filler remaining in the hopper, frequently resulting in empty or overflowing materials. Empty materials cause conveying interruptions, affecting production continuity; overflowing materials lead to waste, equipment contamination, and even safety hazards. Utility Model Content

[0003] To overcome the problems of empty material, overflow, and fluctuations in material discharge volume caused by the inability of existing concrete filler discharge devices to know the amount of filler remaining in the hopper in real time, this utility model provides a concrete filler discharge device. It monitors the hopper's remaining material in real time through sensors and controls the impeller quantitative discharge mechanism in conjunction with the sensor, thereby achieving automatic early warning and precise feeding, effectively avoiding empty material and overflow, and ensuring the consistency of concrete mix proportions.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a concrete filler material feeding device, including a frame, a hopper for holding concrete filler material arranged above the frame, an inlet above the hopper, an outlet below the hopper, a conveyor belt for conveying concrete filler material arranged above the frame at the outlet position, the concrete filler material forming a moving path during the process of falling from the hopper to the conveyor belt, a metering impeller arranged on the moving path through a drive mechanism, and a sensor supporting the hopper arranged on the upper part of the frame, the sensor being used to detect whether the remaining amount inside the hopper meets the metering requirements of the impeller.

[0005] The aforementioned concrete filler material feeding device includes a driving mechanism comprising a valve body connected to the discharge port of the hopper. The valve body has a cavity for accommodating an impeller. A shaft is horizontally placed inside the cavity and rotatably connected thereto. The shaft is keyed to the impeller.

[0006] The aforementioned concrete filler material feeding device has a motor connected to a shaft arranged on the upper part of the frame.

[0007] In the aforementioned concrete filler material discharge device, a material shielding plate is arranged below the valve body, and the material shielding plate is arranged around the moving path in the non-material conveying direction.

[0008] In the aforementioned concrete filler material feeding device, the sensor is a weight sensor.

[0009] The impeller in the aforementioned concrete filler material discharge device is a star-shaped impeller structure.

[0010] The control logic of the sensor in the above-mentioned concrete filler material discharge device is as follows: if the discharge amount of the unloader is known each time, when the amount of material remaining in the hopper is less than 5-10 times the discharge amount, an alarm signal is issued; when the amount of material remaining in the hopper is less than 1-3 times the discharge amount, the unloader stops working.

[0011] The concrete filler discharge device described above can be manually started to continue discharging material after the unloader stops working due to insufficient material remaining in the hopper.

[0012] In the aforementioned concrete filler material feeding device, the sensor is integrated into the control system. The system receives sensor signals and controls the start / stop and alarm of the drive mechanism accordingly.

[0013] In the aforementioned concrete filler material discharge device, the conveying direction of the conveyor belt is parallel to the rotation axis of the impeller.

[0014] The beneficial effects of this utility model are: 1. Achieved precise inventory monitoring and early warning: Through the sensor installed on the upper part of the frame supporting the hopper, the remaining amount of filler in the hopper can be monitored in real time and accurately, providing a reliable basis for timely feeding and fundamentally avoiding the occurrence of empty material and overflow.

[0015] 2. Ensures the stability of quantitative material feeding: Quantitative material feeding is performed through an impeller, and combined with the monitoring logic of sensors, it can automatically stop working when insufficient filler may affect the accuracy of single feeding, ensuring the relative consistency of the feeding amount each time, thereby effectively ensuring the accuracy of raw material ratio in subsequent concrete production.

[0016] 3. Improved the automation and intelligence level of the equipment: By linking sensor monitoring with the control of the drive mechanism, automated management from margin warning to automatic shutdown was achieved, reducing the frequency and intensity of manual intervention and improving production efficiency and reliability.

[0017] 4. Optimized on-site working environment: By setting up a shielding plate in the non-material conveying direction of the movement path, the splashing and overflow of filler during the material dropping process is effectively prevented, keeping the working area clean and reducing material waste. Attached Figure Description

[0018] The present invention will be further described below with reference to the embodiments and examples.

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0020] Figure 2 This is a side view of the structure of an embodiment.

[0021] Figure 3 This is a schematic diagram of the external structure of the drive mechanism.

[0022] Figure 4 This is a schematic diagram of the internal structure of the drive mechanism.

[0023] In the diagram: 1. Frame; 2. Hopper; 3. Conveyor belt; 4. Drive mechanism; 41. Impeller; 42. Valve body; 43. Cavity; 44. Shaft; 45. Motor; 46. Material shield. Detailed Implementation

[0024] This utility model provides a concrete filler material discharge device, which is mainly used to solve the problem that the amount of remaining filler material inside the hopper 2 in the prior art cannot be effectively known, resulting in empty material or overflow, which in turn affects the consistency of concrete raw material ratio.

[0025] like Figure 1-4 As shown, the concrete filler material feeding device includes a frame 1. A hopper 2 for holding the concrete filler material is arranged above the frame 1. An inlet is located above the hopper 2 for adding the filler material, and an outlet is located below the hopper 2 for discharging the filler material. A conveyor belt 3 for transporting the concrete filler material is arranged above the frame 1 and below the outlet. The process of the concrete filler material falling from the outlet of the hopper 2 onto the surface of the conveyor belt 3 forms a clearly defined movement path.

[0026] To achieve quantitative feeding, an impeller 41 is arranged along the moving path via a drive mechanism 4. The impeller 41 rotates under the drive mechanism 4, and its blades carry a fixed amount of filler through during the rotation, thereby achieving precise quantitative feeding.

[0027] To monitor the remaining filler content inside hopper 2 in real time, a sensor supporting hopper 2 is arranged on the upper part of frame 1. Specifically, the sensor is a weight sensor, which can be arranged at the support connection between frame 1 and hopper 2, for example, by bolting it to the top of frame 1 and directly supporting the lug of hopper 2. In this case, the drive mechanism 4 and hopper 2 are softly connected, and the weight of drive mechanism 4 acts on the upper part of frame 1, not on hopper 2, to improve the accuracy of the sensor. Alternatively, the weight sensor can also be integrated into the support foot at the bottom of frame 1 to directly weigh the total weight of frame 1, hopper 2, and drive mechanism 4. To reduce the impact of filler adhering to the inner wall of hopper 2 on the weight, hopper 2 has a funnel-shaped structure with a wider top and narrower bottom, and the inner wall surface is polished to reduce filler adhesion. The sensor is electrically connected to a controller via a signal cable.

[0028] The specific control process and logic of the control system are as follows: The controller (e.g., PLC or dedicated industrial controller) is a common industrial control device in the prior art, which receives real-time weight signals from a weight sensor. The system presets the single discharge amount of the impeller 41 (unloader). The controller's control logic is as follows: when the calculated net remaining material in hopper 2 is lower than the preset 5 to 10 discharge amounts, the controller will drive the alarm device (e.g., an audible and visual alarm) to issue an alarm signal, prompting the need to add material. When the remaining material further decreases to below the preset 1 to 3 discharge amounts, the controller will output a control signal to automatically cut off the power to motor 45, causing the unloader to stop working, thereby ensuring discharge accuracy. If it is necessary to empty hopper 2 after automatic shutdown, the operator can manually start the unloader to continue discharging material through the manual switch or button set on the controller. The specific hardware structure and program logic of this closed-loop control system, which consists of sensors, controller, and actuators (motor 45, alarm), are all existing technologies in the field and will not be described in detail here.

[0029] In a preferred embodiment, the drive mechanism 4 includes a valve body 42 connected to the discharge port of the hopper 2. The valve body 42 has an interior cavity 43 for accommodating the impeller 41. A shaft 44 is transversely arranged within the cavity 43, and the shaft 44 is rotatably connected to the wall of the cavity 43. The impeller 41 is fixed to the shaft 44 by a key connection, thereby achieving synchronous rotation with the shaft 44.

[0030] Furthermore, in order to provide power, a motor 45 is arranged on the upper part of the frame 1. The output shaft of the motor 45 is connected to the shaft 44 inside the valve body 42 to drive the shaft 44 and the impeller 41 to rotate.

[0031] To prevent the packing from overflowing into the non-feeding direction (i.e. both sides) of the conveyor belt 3 during the material dropping process, a baffle plate 46 is arranged below the valve body 42. The baffle plate 46 is arranged around the non-feeding direction of the packing movement path to form a guide channel, so that the packing can fall into the middle of the conveyor belt 3 in a concentrated and accurate manner.

[0032] The impeller 41 is preferably a star-shaped impeller 41 structure. The star-shaped impeller 41 has multiple rigid blades, which can form multiple independent sealed spaces during rotation, providing good sealing and metering performance, and effectively preventing the packing from leaking from the outlet during non-discharge times.

[0033] The above technical solution can ensure that the amount of material dropped each time is relatively consistent in automatic operation mode, thereby effectively guaranteeing the accuracy of the raw material ratio of subsequent concrete.

[0034] The method of using the concrete filler material discharge device of this utility model includes the following steps: 1. Start-up preparation: Add concrete filler into hopper 2 through the feed inlet above hopper 2. Start the conveyor belt 3 and the motor 45 that drives the impeller 41 to rotate.

[0035] 2. Automatic Operation and Monitoring: The device enters automatic operation mode. The impeller 41 rotates continuously, conveying a fixed amount of filler from hopper 2 to the conveyor belt 3 below. The weight sensor supporting hopper 2 monitors the remaining amount of filler in hopper 2 in real time.

[0036] 3. Early warning prompt: When the weight sensor detects that the remaining filler amount is lower than the preset 5 to 10 feeding times, the control system triggers an alarm signal to remind the operator to prepare to add material.

[0037] 4. Automatic shutdown protection: When the weight sensor detects that the remaining filler amount has further decreased to below the preset 1 to 3 times the discharge amount, the control system automatically cuts off the power to the motor 45, stops the impeller 41 from rotating, and pauses the unloading process to ensure the accuracy of the discharge amount.

[0038] 5. Manual emptying (optional): If it is necessary to completely empty the small amount of packing remaining in hopper 2, the operator needs to switch to manual mode, manually start motor 45, drive impeller 41 to discharge the remaining packing until hopper 2 is empty.

[0039] 6. Cyclic operation: Based on the alarm prompts or shutdown status, the operator should promptly replenish the filler in hopper 2, and then the device can resume automatic operation. This cycle is repeated to achieve a continuous, stable, and accurately proportioned filler supply.

Claims

1. A concrete filler material feeding device, characterized in that: The device includes a frame, on which a hopper for holding concrete filler is arranged. The hopper has an inlet at the top and an outlet at the bottom. A conveyor belt for conveying the concrete filler is arranged on the top of the frame at the outlet. The concrete filler forms a movement path as it falls from the hopper onto the conveyor belt. A metering impeller is arranged on the movement path via a drive mechanism. A sensor supporting the hopper is arranged on the upper part of the frame. The sensor is used to detect whether the remaining amount in the hopper meets the metering requirements of the impeller.

2. The concrete filler material feeding device according to claim 1, characterized in that: The drive mechanism includes a valve body connected to the discharge port of the hopper. The valve body has a cavity for accommodating an impeller. A shaft is horizontally placed inside the cavity and rotatably connected thereto. The shaft is keyed to the impeller.

3. The concrete filler material feeding device according to claim 1, characterized in that: A motor connected to the shaft is arranged on the upper part of the frame.

4. The concrete filler material feeding device according to claim 2, characterized in that: A material shield is arranged below the valve body, and the material shield is arranged around the moving path in the non-material conveying direction.

5. The concrete filler material feeding device according to claim 1, characterized in that: The sensor is a weight sensor.

6. The concrete filler material feeding device according to claim 1, characterized in that: The impeller has a star-shaped impeller structure.

7. The concrete filler material feeding device according to claim 1, characterized in that: The control logic of the sensor is as follows: given the amount of material discharged by the unloader each time, when the amount of material remaining in the hopper is less than 5-10 times the amount of material discharged, an alarm signal is issued; when the amount of material remaining in the hopper is less than 1-3 times the amount of material discharged, the unloader stops working.

8. The concrete filler material feeding device according to claim 7, characterized in that: When the unloader stops working due to insufficient material remaining in the hopper, it can be manually started to continue discharging material.

9. The concrete filler material feeding device according to claim 1, characterized in that: The sensor is integrated into the control system, which receives sensor signals and controls the start / stop and alarm functions of the drive mechanism accordingly.

10. The concrete filler material feeding device according to claim 1, characterized in that: The conveyor belt is parallel to the rotation axis of the impeller.

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