Polyethylene particle high-efficiency quantitative feeding device

Abstract

The utility model discloses a kind of polyethylene particle high-efficiency ration feeding devices, including support frame, the upper end fixed mounting of support frame has spiral feeder, the upper end one side of spiral feeder is fixedly connected with feed cylinder, the upper end fixedly connected with temporary storage hopper of feed cylinder, the upper end fixed mounting of temporary storage hopper has ration cylinder, the upper end of ration cylinder is connected with storage tank by feed inlet, the upper end fixed mounting of storage tank has protective shell, the inside fixed mounting of protective shell has speed reducer, the output end transmission connection of speed reducer has bevel gear, the outside lower end of bevel gear is engaged and connected with bevel gear one, polyethylene particle high-efficiency ration feeding device in the utility model, compact structure, arch breaking effect is good, quantitative precision is high, control is flexible, and it is suitable for raw material supply of injection molding, extrusion and the like equipment.

Description

Technical Field

[0001] This utility model relates to the field of quantitative feeding technology, specifically to a high-efficiency quantitative feeding device for polyethylene granules. Background Technology

[0002] In the plastics processing industry, polyethylene, as one of the most widely produced and used general-purpose plastics, is extensively used in the manufacture of films, pipes, containers, packaging materials, and other products. In molding processes such as injection molding, extrusion, and blow molding, the stable, precise, and continuous feeding of polyethylene granules is crucial for ensuring consistent product quality, improving production efficiency, and reducing energy consumption.

[0003] Current feeding devices are prone to forming "arches" at the hopper outlet when the particles are in high humidity or have been left to stand for a long time, which can lead to interruptions in the feeding process and affect the continuity of production. In addition, the feeding amount is controlled by the screw speed or vibration frequency, which lacks precise volume or weight feedback and is greatly affected by changes in particle density and flowability. Therefore, we propose a high-efficiency quantitative feeding device for polyethylene particles. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a high-efficiency quantitative feeding device for polyethylene granules, comprising a support frame, a screw feeder fixedly installed on the upper end of the support frame, a feed cylinder fixedly connected to one side of the upper end of the screw feeder, a temporary storage funnel fixedly connected to the upper end of the feed cylinder, a quantitative cylinder fixedly installed on the upper end of the temporary storage funnel, a storage box connected to the upper end of the quantitative cylinder through a feed inlet, a protective shell fixedly installed on the upper end of the storage box, a geared motor fixedly installed inside the protective shell, a bevel gear driven to the output end of the geared motor, and a bevel gear meshing with the lower outer end of the bevel gear.

[0005] As a preferred embodiment of this utility model, the lower end of the first bevel gear passes through the storage box and is fixedly connected to a rotating cylinder, and the lower outer circumference of the rotating cylinder is fixedly connected with stirring blades at equal intervals, and the upper outer side of the bevel gear is meshed with a second bevel gear.

[0006] As a preferred embodiment of this utility model, the lower end of the bevel gear two is fixedly connected to a rotating shaft, and the outer circumference of the rotating shaft passes through the lower outer circumference of the rotating cylinder and is fixedly connected to a stirring plate at equal intervals, and the outer circumference of the rotating shaft is rotatably connected to the inside of the rotating cylinder.

[0007] As a preferred embodiment of this utility model, the bottom of the rotating shaft passes through the metering cylinder and is fixedly connected to a rotating disk, and the outer periphery of the rotating disk is rotatably connected to the inside of the metering cylinder. The surface of the rotating disk is provided with several feeding grooves at equal intervals, and the bottom of the metering cylinder is provided with a discharge port.

[0008] As a preferred embodiment of this utility model, a guide impeller is rotatably connected inside the feed cylinder, and a rotating rod is fixedly connected to one side of the guide impeller.

[0009] As a preferred technical solution of this utility model, a slide rail is fixedly connected to the upper end of one side surface of the support frame, a fixing plate is fixedly connected to the upper end of one side of the slide rail, a groove limiting rod is rotatably connected to the center end of the fixing plate, and the groove limiting rod is fixedly connected to the rotating rod. A sliding plate is slidably connected to the surface of the slide rail.

[0010] As a preferred embodiment of this utility model, a servo motor is fixedly installed on one side of the sliding plate. The output end of the servo motor is connected to a sleeve via a coupling. The inside of the sleeve is engaged with a groove limiting rod. An electric push rod is provided on the side near the fixed plate. An L-shaped plate is fixedly connected to the output end of the electric push rod, and the L-shaped plate is fixedly connected to the sliding plate.

[0011] The beneficial effects of this utility model are: 1. This high-efficiency quantitative feeding device for polyethylene granules uses a geared motor to drive a bevel gear, which simultaneously drives the rotating drum and the rotating shaft to rotate in opposite directions. This causes the outer stirring blades and the inner stirring plate to form an upper and lower layer reverse shearing and stirring, which effectively breaks the adhesion between the granules and prevents the polyethylene granules from forming an "arch bridge" in the storage box and the quantitative cylinder, ensuring that the material falls continuously and stably. 2. This high-efficiency quantitative feeding device for polyethylene granules achieves intermittent volumetric quantitative feeding by using a feeding trough with equal spacing on the surface of the rotating disc in conjunction with the discharge port at the bottom of the quantitative cylinder. The volume of granules released each time is constant, the measurement is accurate, the error is small, and it meets the requirements of high-precision feeding. 3. This high-efficiency quantitative feeding device for polyethylene granules uses an electric push rod to push a sliding plate, controlling the engagement state of the sleeve at the output end of the servo motor with the groove limit rod, thereby achieving automatic start and stop of the guide impeller with precise control. This utility model has a simple and reasonable structure, novel design, and simple and convenient operation, and has high practical value. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of a high-efficiency quantitative feeding device for polyethylene granules according to this utility model; Figure 2 This is a schematic diagram of the rotating cylinder structure of a high-efficiency quantitative feeding device for polyethylene granules according to this utility model; Figure 3This is a schematic diagram of the rotating disk structure of a high-efficiency quantitative feeding device for polyethylene granules according to this utility model; Figure 4 This is a schematic diagram of the guide impeller structure of a high-efficiency quantitative feeding device for polyethylene granules according to this utility model; Figure 5 This is a schematic diagram of the slide rail structure of a high-efficiency quantitative feeding device for polyethylene granules according to this utility model.

[0013] In the diagram: 1. Support frame; 2. Screw feeder; 3. Feed cylinder; 4. Temporary storage funnel; 5. Metering cylinder; 6. Storage box; 7. Protective shell; 8. Gear motor; 9. Bevel gear; 10. Bevel gear one; 11. Rotating cylinder; 12. Stirring blade; 13. Bevel gear two; 14. Rotating shaft; 15. Rotating disk; 16. Discharge chute; 17. Discharge port; 18. Guide impeller; 19. Rotating rod; 20. Slide rail; 21. Fixing plate; 22. Groove limit rod; 23. Sliding plate; 24. Servo motor; 25. Sleeve; 26. Electric push rod; 27. L-shaped plate; 28. Stirring plate. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] Example: Figures 1-5 As shown, this utility model discloses a high-efficiency quantitative feeding device for polyethylene granules, including a support frame 1. A screw feeder 2 is fixedly installed on the upper end of the support frame 1. A feed cylinder 3 is fixedly connected to one side of the upper end of the screw feeder 2. A temporary storage funnel 4 is fixedly connected to the upper end of the feed cylinder 3. A quantitative cylinder 5 is fixedly installed on the upper end of the temporary storage funnel 4. A storage box 6 is connected to the upper end of the quantitative cylinder 5 through the feed inlet. A protective shell 7 is fixedly installed on the upper end of the storage box 6. A reduction motor 8 is fixedly installed inside the protective shell 7. A bevel gear 9 is driven and connected to the output end of the reduction motor 8. A bevel gear 10 is meshed with the lower outer side of the bevel gear 9.

[0016] The lower end of bevel gear 10 passes through the storage box 6 and is fixedly connected to a rotating cylinder 11. Stirring blades 12 are fixedly connected at equal intervals on the outer periphery of the lower end of the rotating cylinder 11. The upper outer end of the bevel gear 9 is meshed with bevel gear 13. The rotating cylinder 11 and its outer stirring blades 12 are driven to rotate by bevel gear 10, which disturbs the particles in the lower part of the storage box 6, prevents bridging and blockage at the discharge port, and ensures continuous material supply.

[0017] Among them, the lower end of the second bevel gear 13 is fixedly connected to the rotating shaft 14, and the outer circumference of the rotating shaft 14 passes through the lower outer circumference of the rotating cylinder 11 and is fixedly connected to the stirring plate 28 at equal intervals. The outer circumference of the rotating shaft 14 is rotatably connected to the inside of the rotating cylinder 11. Through the transmission characteristics of the bevel gear 9, the second bevel gear 13 and the first bevel gear 10 rotate in opposite directions, thereby driving the rotating shaft 14 and the rotating cylinder 11 to rotate in opposite directions, realizing the upper and lower layers to stir in opposite directions, enhancing the arch breaking effect and preventing particle agglomeration.

[0018] The bottom of the rotating shaft 14 passes through the metering cylinder 5 and is fixedly connected to the rotating disk 15. The outer periphery of the rotating disk 15 is rotatably connected to the inside of the metering cylinder 5. Several feeding grooves 16 are evenly spaced on the surface of the rotating disk 15. The bottom of the metering cylinder 5 is provided with a discharge port 17. When the rotating disk 15 rotates, the feeding grooves 16 periodically align with the discharge port 17 to achieve intermittent and precise quantitative feeding, control the volume of particles released each time, and ensure feeding accuracy.

[0019] The feed cylinder 3 is rotatably connected to a guide impeller 18, and a rotating rod 19 is fixedly connected to one side of the guide impeller 18. The rotation of the guide impeller 18 can guide the particles to enter the screw feeder 2 stably, prevent accumulation and blockage, and improve the feeding smoothness.

[0020] Among them, a slide rail 20 is fixedly connected to the upper end of one side surface of the support frame 1, and a fixed plate 21 is fixedly connected to the upper end of one side of the slide rail 20. A groove limiting rod 22 is rotatably connected to the center end of the fixed plate 21, and the groove limiting rod 22 is fixedly connected to the rotating rod 19. A sliding plate 23 is slidably connected to the surface of the slide rail 20. The slide rail 20 and the fixed plate 21 form a guiding and supporting structure to ensure that the sliding plate 23 moves smoothly and to provide a reliable mechanical basis for the start and stop adjustment of the guide impeller 18.

[0021] A servo motor 24 is fixedly installed on one side of the sliding plate 23. The output end of the servo motor 24 is connected to a sleeve 25 via a coupling. The inside of the sleeve 25 is engaged with the groove limiting rod 22. An electric push rod 26 is provided on the side near the fixed plate 21. An L-shaped plate 27 is fixedly connected to the output end of the electric push rod 26. The L-shaped plate 27 is fixedly connected to the sliding plate 23. The electric push rod 26 pushes the L-shaped plate 27 to move the sliding plate 23, thereby controlling the engagement and disengagement of the sleeve 25 and the groove limiting rod 22. This enables the automatic start and stop and speed adjustment of the guide impeller 18, accurately controls the feed amount, and achieves dynamic control of quantitative feeding.

[0022] Working Principle: During use, polyethylene granules are added to the storage tank 6 through the feed inlet at the top. The reduction motor 8 is started, and its output drives the bevel gear 9 to rotate. The bevel gear 9 simultaneously meshes with and drives the first bevel gear 10 and the second bevel gear 13 to rotate. Due to the structural characteristics of the bevel gear transmission, the first bevel gear 10 and the second bevel gear 13 rotate in opposite directions, thus driving the rotating cylinder 11 and the rotating shaft 14 to rotate in opposite directions. The stirring blades 12 on the outer periphery of the rotating cylinder 11 stir the polyethylene granules at the bottom of the storage tank 6 clockwise to prevent bridging and blockage at the outlet. Simultaneously, the stirring plate 28 on the rotating shaft 14 rotates counterclockwise inside the rotating cylinder 11, causing reverse disturbance to the granules in the metering cylinder 5, forming reverse shearing and stirring between the upper and lower layers. This effectively breaks the agglomeration force between granules, ensuring continuous and uniform material flow and significantly improving the anti-bridging effect. The rotating disk 15 at the bottom of the rotating shaft 14 rotates synchronously, and its discharge trough 16 periodically passes through the discharge port 17 at the bottom of the metering cylinder 5. Each time a discharge trough aligns with the outlet, a fixed volume of polyethylene granules falls into the temporary storage funnel 4 under gravity, achieving high-precision intermittent quantitative feeding. To control the flow rate of granules entering the screw feeder 2, the system is adjusted by an electric push rod 26. When feeding is required, the electric push rod 26 extends, pushing the L-shaped plate 27 to move the sliding plate 23 horizontally along the slide rail 20, so that the sleeve 25 at the output end of the servo motor 24 is fully engaged with the groove limiting rod 22. At this time, the servo motor 24 starts, driving the guide impeller 18 to rotate through the sleeve 25, the groove limiting rod 22, and the rotating rod 19, stably feeding the granules in the temporary storage funnel 4 into the feed cylinder 3. When stopping is required, the electric push rod 26 retracts, the sliding plate 23 moves backward, the sleeve 25 disengages from the groove limiting rod 22, and the guide impeller 18 stops rotating, thereby precisely controlling the amount of granules entering the feed cylinder 3 and realizing start-stop control and flow rate regulation of the feeding process. Under continuous operation, the screw feeder 2 continuously and stably conveys the metered polyethylene granules, ensuring uniform feeding and improving plasticizing quality.

[0023] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0024] 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 an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency quantitative feeding device for polyethylene granules, comprising a support frame (1), characterized in that, A screw feeder (2) is fixedly installed on the upper end of the support frame (1). A feed cylinder (3) is fixedly connected to one side of the upper end of the screw feeder (2). A temporary storage funnel (4) is fixedly connected to the upper end of the feed cylinder (3). A metering cylinder (5) is fixedly installed on the upper end of the temporary storage funnel (4). A storage box (6) is connected to the upper end of the metering cylinder (5) through the feed port. A protective shell (7) is fixedly installed on the upper end of the storage box (6). A geared motor (8) is fixedly installed inside the protective shell (7). A bevel gear (9) is connected to the output end of the geared motor (8). A bevel gear (10) is meshed with the lower outer end of the bevel gear (9).

2. The high-efficiency quantitative feeding device for polyethylene granules according to claim 1, characterized in that, The lower end of the first bevel gear (10) passes through the storage box (6) and is fixedly connected to the rotating cylinder (11). The lower outer circumference of the rotating cylinder (11) is fixedly connected to the stirring blades (12) at equal intervals. The upper outer side of the bevel gear (9) is meshed with the second bevel gear (13).

3. The high-efficiency quantitative feeding device for polyethylene granules according to claim 2, characterized in that, The lower end of the bevel gear 2 (13) is fixedly connected to a rotating shaft (14), and the outer periphery of the rotating shaft (14) passes through the lower outer periphery of the rotating cylinder (11) and is fixedly connected to a stirring plate (28) at equal intervals. The outer periphery of the rotating shaft (14) is rotatably connected to the inside of the rotating cylinder (11).

4. The high-efficiency quantitative feeding device for polyethylene granules according to claim 3, characterized in that, The bottom of the rotating shaft (14) passes through the metering cylinder (5) and is fixedly connected to the rotating disk (15). The outer periphery of the rotating disk (15) is rotatably connected to the inside of the metering cylinder (5). The surface of the rotating disk (15) is provided with several feeding grooves (16) at equal intervals. The bottom of the metering cylinder (5) is provided with a discharge port (17).

5. The high-efficiency quantitative feeding device for polyethylene granules according to claim 1, characterized in that, The feed cylinder (3) is rotatably connected to a guide impeller (18), and a rotating rod (19) is fixedly connected to one side of the guide impeller (18).

6. The high-efficiency quantitative feeding device for polyethylene granules according to claim 1, characterized in that, A slide rail (20) is fixedly connected to the upper end of one side surface of the support frame (1), and a fixing plate (21) is fixedly connected to the upper end of one side of the slide rail (20). A groove limiting rod (22) is rotatably connected to the center end of the fixing plate (21), and the groove limiting rod (22) is fixedly connected to the rotating rod (19). A sliding plate (23) is slidably connected to the surface of the slide rail (20).

7. The high-efficiency quantitative feeding device for polyethylene granules according to claim 6, characterized in that, A servo motor (24) is fixedly installed on one side of the sliding plate (23). The output end of the servo motor (24) is connected to a sleeve (25) via a coupling. The inside of the sleeve (25) is engaged with the groove limiting rod (22). An electric push rod (26) is provided on the side near the fixed plate (21). An L-shaped plate (27) is fixedly connected to the output end of the electric push rod (26). The L-shaped plate (27) is fixedly connected to the sliding plate (23).

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