A feeding and metering device for plastic particle transmission

Abstract

The utility model relates to the technical field of plastic material production equipment, especially to a kind of feeding metering device applied to plastic particle transmission, multiple weight sensors corresponding with connecting frame are arranged in the circumferential array distribution on the outer wall of metering tank, the weight of plastic particle is accurately detected, effectively avoid the detection deviation generated by the uneven distribution of traditional single sensor, ensure that the weight of plastic material before feeding is accurate and correct, greatly improve the stability of product quality, reduce the rate of defective products;The control valve of top feed pipe and the pneumatic discharge valve of bottom simultaneously, accurately control the weight of feeding and discharging, ensure that the weight of plastic material in metering tank meets the needs of different production scales.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic material production equipment, and in particular to a feeding and metering device for conveying plastic granules. Background Technology

[0002] In the production of plastic products, the accurate transfer and metering of plastic granules plays a crucial role in ensuring stable product quality. Traditional plastic granule transfer processes often lack precise and effective metering methods during the feeding stage. Previously, many manufacturers used a rather crude volumetric metering method before feeding plastic granules. However, due to the material characteristics of plastic granules, density differences may exist between different batches. Relying solely on volumetric metering cannot guarantee that the quality of plastic material input into production meets stringent production requirements each time.

[0003] To address the aforementioned issues, simple measuring devices are installed. However, existing measuring devices lack real-time and accurate detection of the plastic material weight. For example, some devices do not have dedicated weight detection components, making it difficult to detect deviations in plastic material weight during production, leading to fluctuations in product quality and an increased defect rate. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a feeding and metering device for conveying plastic granules.

[0005] The present invention adopts the following technical solution:

[0006] A feeding and metering device for conveying plastic granules includes a metering tank and a support frame. A feed pipe is connected to the top of the metering tank, and a control valve is installed on the feed pipe. A pneumatic discharge valve is installed at the bottom of the metering tank. Multiple connecting frames are fixed to the outer wall of the metering tank, and multiple weight sensors are installed on the support frame. Each weight sensor corresponds to one of the connecting frames, and the connecting frame abuts against the top of the weight sensor. The weight sensor is used to detect the weight of the metering tank.

[0007] Preferably, the weight sensor is fixedly provided with a support column at its bottom, and the bottom of the support column is provided with an elastic pad, which abuts against the support frame.

[0008] Preferably, the connecting frame is distributed in a circumferential array at equal intervals on the outer wall of the metering tank, and the weight sensor is correspondingly arranged with the connecting frame.

[0009] Preferably, the number of the connecting frame and the weight sensor is 2-4.

[0010] Preferably, the metering tank is arranged in a cylindrical structure.

[0011] Preferably, the connecting frame includes a connecting plate and an abutment plate that are perpendicular to each other; the connecting plate is arranged in an arc shape that fits against the outer wall of the metering tank; the abutment plate is arranged horizontally and abuts against the top of the weight sensor.

[0012] Preferably, the connecting frame further includes two symmetrically arranged support beams, which connect the connecting plate and the abutment plate.

[0013] Preferably, the support frame includes a top plate and a bottom plate arranged in parallel, and a connecting column is provided between the top plate and the bottom plate; both the top plate and the bottom plate have a through hole in their center, and the metering tank is disposed in the through hole; the weight sensor is disposed on the top plate.

[0014] Preferably, the metering tank is provided with an observation window.

[0015] Preferably, it also includes a controller; the controller is electrically connected to the weight sensor, and the controller is controlled to connect to the control valve and the pneumatic feeding valve; the controller controls the opening and closing of the control valve and the pneumatic feeding valve according to the detection result of the weight sensor.

[0016] The beneficial effects of this utility model are as follows:

[0017] The present invention relates to a feeding and metering device for conveying plastic granules. Multiple weight sensors, arranged in a circumferential array corresponding to the connecting frame, are installed on the outer wall of the metering tank to accurately detect the weight of the plastic granules. This effectively avoids the detection deviation caused by uneven material distribution in traditional single sensors, ensuring accurate weight of the plastic material before feeding, greatly improving product quality stability and reducing the defect rate. Simultaneously, the control valve on the top feed pipe and the pneumatic discharge valve at the bottom precisely control the weight of the loaded and unloaded materials, ensuring that the weight of the plastic material in the metering tank meets the needs of different production scales.

[0018] A support column and elastic pad are installed at the bottom of the weight sensor to buffer external vibrations and ensure the accuracy and stability of the detection data. The connecting frame adopts a unique structure, with an arc-shaped connecting plate that fits against the outer wall of the measuring tank and is equipped with a support beam to firmly connect the measuring tank and the sensor, enhancing the stability of the device operation and ensuring the detection accuracy of the weight sensor.

[0019] The observation window on the metering tank allows operators to monitor the amount and status of plastic granules inside in real time and make timely adjustments. A controller is also installed to connect to all components, enabling automated control. Based on data from the weight sensor, the valves are precisely controlled, improving operational accuracy and convenience, reducing human error, and further enhancing production efficiency and product quality.

[0020] The metering tank features a cylindrical design, which facilitates manufacturing and installation, and offers advantages in space utilization and material distribution. The support frame employs a parallel structure of top and bottom plates and connecting columns to stably support the metering tank. A central perforation facilitates installation and positioning, resulting in a compact and rational structure that is easy to lay out and apply in actual production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the feeding and metering device of the present invention, which is applied to the conveying of plastic granules.

[0022] Figure 2 for Figure 1 A schematic diagram of the connecting frame and weight sensor in the diagram.

[0023] Numbering on the map:

[0024] 10-Metering tank; 11-Feed pipe; 12-Control valve; 13-Pneumatic discharge valve; 14-Observation window; 20-Support frame; 21-Top plate; 22-Bottom plate; 23-Connecting column; 24-Perforation; 30-Connecting frame; 31-Connecting plate; 32-Abutment plate; 33-Support beam; 40-Weight sensor; 41-Supporting column; 42-Elastic pad; 50-Controller. 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. 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.

[0026] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figures 1 to 2 As shown, this utility model relates to a feeding and metering device for conveying plastic granules. It is installed at the front end of devices such as extrusion devices and mixing devices to feed and meter plastic granules, ensuring that the quality of the plastic material put into production meets production requirements, improving the stability of product quality, and reducing the defect rate.

[0029] The aforementioned feeding and metering device for conveying plastic granules includes a metering tank 10 and a support frame 20. A feed pipe 11 is connected to the top of the metering tank 10, and a control valve 12 is installed on the feed pipe 11. A pneumatic discharge valve 13 is installed at the bottom of the metering tank 10. Multiple connecting frames 30 are fixed to the outer wall of the metering tank 10, and multiple weight sensors 40 are installed on the support frame 20. Each weight sensor 40 corresponds to one of the connecting frames 30, and the connecting frame 30 abuts against the top of the weight sensor 40. The weight sensor 40 is used to detect the weight of the metering tank 10.

[0030] In the initial state, the pneumatic discharge valve 13 closes the outlet at the bottom of the metering tank 10, and various plastic raw materials are distributed and enter the metering tank 10 through different feed pipes 11. The control valve 12 controls the feed rate and speed. During this process, the weight sensor 40 monitors the total weight of the metering tank 10 and the plastic material inside in real time. When the weight monitored by the weight sensor 40 reaches the preset weight, the pneumatic discharge valve 13 opens the outlet at the bottom of the metering tank 10, and the plastic material inside the metering tank 10 is discharged for subsequent processing steps. Through this method, the plastic material can be metered, ensuring that the quality of the plastic material input into subsequent production processes meets production requirements.

[0031] A further improvement to the above solution is that a support column 41 is fixedly provided at the bottom of the weight sensor 40, and an elastic pad 42 is provided at the bottom of the support column 41, which abuts against the support frame 20. In this embodiment, the elastic pad 42 is made of rubber, which has a certain deformation capacity and can buffer external vibrations. On the one hand, this ensures the accuracy and stability of the detection data, and on the other hand, it allows the metering tank 10 to make soft contact with the support frame 20. When plastic material accumulates in the metering tank 10, the operator can vibrate the metering tank 10 to ensure smooth material feeding.

[0032] A further improvement to the above scheme is that the connecting frames 30 are evenly distributed in a circular array on the outer wall of the metering tank 10, and the weight sensors 40 are correspondingly arranged with the connecting frames 30. Specifically, the number of connecting frames 30 and weight sensors 40 is 2-4. Weight sensors 40 are arranged at different angles to reduce detection errors caused by uneven distribution of plastic material. Figure 1 As shown, in this embodiment, four connecting frames 30 and weight sensors 40 are used. The number of connecting frames 30 and weight sensors 40 can be adjusted according to actual production needs.

[0033] A further improvement to the above scheme is that the measuring tank 10 is cylindrical, and the connecting frame 30 includes a connecting plate 31 and an abutment plate 32 that are perpendicular to each other. The connecting plate 31 has an arc-shaped structure that fits against the outer wall of the measuring tank 10. The abutment plate 32 is horizontally positioned and abuts against the top of the weight sensor 40. The connecting frame 30 also includes two symmetrically arranged support beams 33, which connect the connecting plate 31 and the abutment plate 32. The arc shape of the connecting plate 31 allows the connecting frame 30 to fit more closely against the outer wall of the measuring tank 10, while the horizontal positioning of the abutment plate 32 ensures the contact area between the connecting frame 30 and the weight sensor 40, further ensuring the accuracy of weight detection. Additionally, the support beams 33 increase the structural strength of the connecting frame 30, making the connection structure between the measuring tank 10 and the weight sensor 40 more stable and ensuring operational stability.

[0034] A further improvement to the above scheme is that the support frame 20 includes a top plate 21 and a bottom plate 22 arranged in parallel, with a connecting column 23 connecting the top plate 21 and the bottom plate 22; both the top plate 21 and the bottom plate 22 have a through hole 24 in their center, and the metering tank 10 is located in the through hole 24; the weight sensor 40 is located on the top plate 21. With this structure, the support frame 20 has a compact and reasonable structural distribution, facilitating the connection of the metering tank 10 with extrusion devices, mixing devices, and other equipment.

[0035] A further improvement to the above scheme is that the metering tank 10 is equipped with an observation window 14, through which the operator can observe the working conditions inside the metering tank 10. Simultaneously, a stirring blade (not shown in the figure) is installed inside the metering tank 10, capable of initial stirring of various plastic raw materials.

[0036] A further improvement to the above scheme is that it also includes a controller 50; the controller 50 is electrically connected to the weight sensor 40, and the controller 50 is controllably connected to the control valve 12 and the pneumatic feeding valve 13. The controller 50 receives detection data from the weight sensor 40 and controls the opening and closing of the control valve 12 and the pneumatic feeding valve 13 according to the detection data.

[0037] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A feeding and metering device for conveying plastic granules, characterized in that, The device includes a metering tank and a support frame. A feed pipe is connected to the top of the metering tank, and a control valve is installed on the feed pipe. A pneumatic discharge valve is installed at the bottom of the metering tank. Multiple connecting frames are fixed to the outer wall of the metering tank, and multiple weight sensors are installed on the support frame. Each weight sensor is arranged in a corresponding manner to a connecting frame, and the connecting frame abuts against the top of the weight sensor. The weight sensor is used to detect the weight of the metering tank.

2. The feeding and metering device for conveying plastic granules according to claim 1, characterized in that, The weight sensor has a fixed support column at its bottom, and the bottom of the support column has an elastic pad that abuts against the support frame.

3. The feeding and metering device for conveying plastic granules according to claim 1, characterized in that, The connecting frames are distributed in a circumferential array at equal intervals on the outer wall of the metering tank, and the weight sensors are correspondingly arranged with respect to the connecting frames.

4. The feeding and metering device for conveying plastic granules according to claim 3, characterized in that, The number of connecting frames and weight sensors is 2-4.

5. The feeding and metering device for conveying plastic granules according to claim 1, characterized in that, The metering tank is arranged in a cylindrical structure.

6. The feeding and metering device for conveying plastic granules according to claim 5, characterized in that, The connecting frame includes a connecting plate and an abutment plate that are perpendicular to each other; the connecting plate is arranged in an arc shape that fits against the outer wall of the metering tank; the abutment plate is arranged horizontally and abuts against the top of the weight sensor.

7. The feeding and metering device for conveying plastic granules according to claim 6, characterized in that, The connecting frame also includes two symmetrically arranged support beams, which connect the connecting plate and the abutment plate.

8. The feeding and metering device for conveying plastic granules according to claim 1, characterized in that, The support frame includes a top plate and a bottom plate arranged in parallel, and a connecting column is provided between the top plate and the bottom plate; both the top plate and the bottom plate have a through hole in their center, and the metering tank is located in the through hole; the weight sensor is located on the top plate.

9. The feeding and metering device for conveying plastic granules according to claim 1, characterized in that, The metering tank is equipped with an observation window.

10. The feeding and metering device for conveying plastic granules according to claim 1, characterized in that, It also includes a controller; the controller is electrically connected to the weight sensor, and the controller is controlled to connect to the control valve and the pneumatic feeding valve; the controller controls the opening and closing of the control valve and the pneumatic feeding valve according to the detection result of the weight sensor.

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