Plastic particle feeding hopper

Abstract

The utility model relates to the technical field of blanking hopper especially, a kind of plastic particle blanking hopper, including hopper body, the conical part in the hopper body is equipped with the conical body projecting upward, the conical body is located at the axis position of hopper body, the conical body periphery and conical part inner wall between leave and set up material pass through seam, the crankshaft is rotationally connected to the hopper body along its radial direction, the crankshaft one end transmission connection rotating electrical machine, the crankshaft can drive the conical body movement by transmission assembly. The device can realize internal anti-arch effect without increasing the overall vibration energy consumption of hopper body, avoid screw loosening and other problems, and scattering effect is concentrated in the area prone to arching, arch breaking effect is more accurate and stable, to improve the continuity and reliability of discharging.

Description

Technical Field

[0001] This utility model relates to the field of feeding funnel technology, and in particular to a plastic granule feeding funnel. Background Technology

[0002] Masterbatch is a commonly used functional raw material, typically conveyed to extruders, metering devices, or mixing equipment via a feeding hopper. (See reference...) Figure 1 When masterbatch is subjected to mechanical compression or its own adhesive properties, a stable "bridge arch" structure often forms above the cone-shaped outlet of the funnel, causing the masterbatch above to be suspended in the air and the space below to be empty, resulting in the so-called "bridging" phenomenon. This phenomenon can hinder the material from falling, leading to poor material feeding and even production interruption.

[0003] Existing technologies have proposed various improvement solutions, such as installing a vibrating motor or air hammer on the outer wall of the funnel to promote material feeding through periodic vibration. However, in this method, the energy of the vibrating motor needs to be transmitted to the material inside the funnel, resulting in high energy consumption and inaccurate transmission to the bridging position. Furthermore, since the entire system is in a state of vibration, it is easy to cause problems such as loose screws on the parts connected to the funnel. Utility Model Content

[0004] The purpose of this utility model is to solve one of the problems pointed out in the background art, and to propose a plastic granule feeding funnel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic granule feeding funnel includes a funnel body, in which a cone protruding upward is provided in a conical part. The cone is located at the axis of the funnel body. A material passage slit is left between the cone and the inner wall of the conical part. The funnel body is rotatably connected to a crankshaft along its radial direction. One end of the crankshaft is driven to a rotary motor. The crankshaft can drive the cone to move through a transmission assembly.

[0007] The transmission assembly includes a connecting rod, the bottom end of which is rotatably connected to the top of a cone via a pin, and a second collar is fixedly connected to the top of the connecting rod. The crankshaft has a crankshaft portion, and the second collar is rotatably connected to the crankshaft portion.

[0008] A telescopic rod is provided between the cone and the crankshaft, which enables the cone to move up and down.

[0009] The telescopic rod includes a slidingly sleeved outer cylinder and an inner rod. A first collar is fixedly connected to the top of the outer cylinder. The crankshaft has a straight shaft portion. The first collar is rotatably connected to the straight shaft portion. The bottom end of the inner rod is fixed to the cone.

[0010] Both the outer cylinder and the inner rod have hollow channels. The top of the outer cylinder is connected to an air pump via a connector. The cone has a chamber that communicates with the inner rod. Air holes are opened on the conical surface of the cone.

[0011] The top of the funnel body has a rim, and a bearing seat is installed on the rim. The crankshaft is rotatably connected to the bearing seat.

[0012] The plastic granule feeding funnel proposed in this utility model has the following advantages: This device can achieve the internal anti-bridging effect without increasing the overall vibration energy consumption of the funnel body, avoiding problems such as loose screws, and the dispersing effect is concentrated in the area where bridging is easy, making the arch breaking effect more precise and stable, thereby improving the continuity and reliability of feeding. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the material bridging structure.

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal structure of the first embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the conical assembly of this utility model;

[0017] Figure 5 This is a front view of the internal structure of the second embodiment of the present invention.

[0018] In the figure: 1. Funnel body, 2. Edge, 3. Bearing seat, 4. Straight shaft, 5. Crankshaft, 6. Telescopic rod, 7. First collar, 8. Connecting rod, 9. Second collar, 10. Crankshaft, 11. Rotary motor, 12. Conical part, 13. Pin, 14. Outer cylinder, 15. Inner rod, 16. Cone, 17. Material through slot, 18. Chamber, 19. Air hole, 20. Connector. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] Reference Figures 1-5A plastic granule feeding funnel includes a funnel body 1. Inside the funnel body 1, a cone 16 protruding upward is provided in a conical part 12. The cone 16 is located on the axis of the funnel body 1. A material passage slit 17 is left between the cone 16 and the inner wall of the conical part 12. The funnel body 1 is rotatably connected to a crankshaft 10 along its radial direction. One end of the crankshaft 10 is connected to a rotary motor 11. The crankshaft 10 can drive the cone 16 to move through a transmission assembly.

[0021] When the rotary motor 11 starts, it drives the crankshaft 10 to rotate along its axis. The eccentric structure of the crankshaft 10 causes it to drive the transmission components to generate periodic reciprocating motion during rotation, thereby causing the cone 16 to move within the conical portion 12 of the funnel body 1. During its movement, the cone 16 disturbs the plastic granules within the conical portion 12, directly breaking up materials in areas prone to bridging, causing the previously arched plastic granules to slide back down. The material passage gap 17 between the cone 16 and the inner wall of the conical portion 12 ensures that while breaking up bridging, the material can pass smoothly, achieving continuous feeding. The entire process relies on the rotation of the crankshaft 10 to achieve localized internal movement, without applying vibration to the entire funnel body 1, thus achieving targeted bridging and stable feeding.

[0022] With the above structure, when plastic granules bridge within the funnel body 1, the cone 16, driven by the crankshaft 10, undergoes periodic motion, generating local disturbance within the conical portion 12. This promptly disrupts the formed bridge arch structure, allowing the material to fall smoothly through the material passage slit 17 under gravity. This structure achieves internal anti-bridging effects without increasing the overall vibration energy consumption of the funnel body 1, avoiding problems such as loose screws. Furthermore, the dispersing effect is concentrated in areas prone to bridging, resulting in a more precise and stable arch-breaking effect, thereby improving the continuity and reliability of material feeding.

[0023] The transmission assembly includes a connecting rod 8, the bottom end of which is rotatably connected to the top end of a cone 16 via a pin 13, and a second ring 9 is fixedly connected to the top end of the connecting rod 8. The crankshaft 10 has a crankshaft portion 5, and the second ring 9 is rotatably connected to the crankshaft portion 5.

[0024] When the rotary motor 11 starts, it drives the crankshaft 10 to rotate. The crankshaft portion 5 on the crankshaft 10, under eccentric action, drives the second ring 9 to perform circular motion. Since the second ring 9 is fixed to the connecting rod 8, the rotation of the crankshaft portion 5 will convert this circular motion into irregular oscillation and up-and-down compound motion through the connecting rod 8, thereby driving the cone 16, which is rotatably connected to the bottom end of the connecting rod 8 via the pin 13, to produce irregular motion within the conical portion 12 of the funnel body 1. During the motion, the cone 16 disturbs the area near the material passing through the slit 17, causing the plastic granules accumulated between the inner walls of the conical portion 12 to continuously loosen and roll, thereby destroying the formed bridge arch structure, allowing the material to flow again and fall smoothly.

[0025] A telescopic rod 6 is provided between the cone 16 and the crankshaft 10, enabling the cone 16 to move up and down. In one embodiment, the telescopic rod includes a slidably fitted outer cylinder 14 and an inner rod 15. A first collar 7 is fixedly connected to the top of the outer cylinder 14. The crankshaft 10 has a straight shaft portion 4, and the first collar 7 is rotatably connected to the straight shaft portion 4. The bottom end of the inner rod 15 is fixed to the cone 16. The connecting rod 8 is responsible for converting the eccentric rotation of the crankshaft 10 into driving force. The telescopic rod 6 only serves to limit the direction of movement of the cone 16 and provide guiding support, and does not participate in power transmission.

[0026] The telescopic rod 6 includes a sliding fit structure between an outer cylinder 14 and an inner rod 15. A first collar 7 is fixed to the top of the outer cylinder 14, and the first collar 7 is rotatably connected to the straight shaft portion 4 of the crankshaft 10, allowing the telescopic rod 6 to extend and retract with the rotation of the crankshaft 10 while maintaining vertical guidance. Since the bottom end of the inner rod 15 is fixedly connected to a cone 16, the cone 16 vibrates only axially in the up-and-down direction under the drive of the crankshaft 10, without producing lateral oscillation. During the up-and-down vibration, the cone 16 periodically impacts the plastic granules accumulated in the conical portion 12, effectively breaking up the bridging structure near the material passage slit 17, thereby promoting smooth material descent.

[0027] In one implementation, the cone 16 reciprocates along the axis of the funnel body 1 under the guidance of the telescopic rod 6, and its maximum vertical displacement does not exceed the height range of the material passing through the slit 17, thereby ensuring continuous material flow and preventing reverse impact. The upper end of the cone 16 is located below the conical part 12 at a distance of about 1 to 2 times the diameter of the discharge port. This area is where plastic granules are most likely to form bridging structures. Therefore, the vertical vibration of the cone 16 can generate local disturbances in this critical area to disrupt the bridging structure.

[0028] As one implementation method, refer to Figure 5 Both the outer cylinder 14 and the inner rod 15 have hollow channels. The top side of the outer cylinder 14 is connected to an air pump via a connector 20. The cone 16 has a chamber 18 that communicates with the inner rod 15. Air holes 19 are provided on the conical surface of the cone 16. The hollow channels of the outer cylinder 14 and the inner rod 15 are connected to the air pump via the connector 20. The air pump is supplied with working air by an external device. The airflow enters the inner rod 15 from the outer cylinder 14 through the hollow channels, and then enters the cone 16 through the chamber 18 that communicates with the bottom of the inner rod 15. The air holes 19 on the conical surface of the cone 16 blow the airflow in the chamber 18 towards the area of ​​the conical part 12 that contacts the material. While blowing, the airflow dries and disturbs the surface near the material through the slit 17. The airflow enters the inner channel of the outer cylinder 14 through the air pump and the connector 20, then flows through the inner rod 15 and the chamber 18 in sequence, and finally is ejected from the multiple air holes 19 on the conical surface of the cone 16. As long as the above functions can be achieved, those skilled in the art can add or remove components according to the existing technology.

[0029] As one installation method, the top of the funnel body 1 has a rim 2, and a bearing seat 3 is mounted on the rim 2. The crankshaft 10 is rotatably connected to the bearing seat 3. The crankshaft 10 is rotatably connected to the bearing seat 3, and the bearing seat 3 is fixed to the rim 2 to ensure the reliability and stability of the crankshaft 10's rotational support. The crankshaft 10 is mounted on the rim 2 via the bearing seat 3. The bearing seat 3 is equipped with a rolling bearing assembly to keep the crankshaft 10 stably supported during rotation. At the same time, a sealing ring is provided at the connection between the bearing seat 3 and the rim 2 to prevent dust or materials from entering the bearing cavity.

[0030] It should be noted that when a component is connected to another component using connectors, including but not limited to "fixed," "installed," and "set," the connection can be directly on the other component or can be between two components. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A plastic pellet feeding funnel, comprising a funnel body (1), characterized in that, The funnel body (1) has an upwardly protruding cone (16) located in the conical part (12). The cone (16) is located on the axis of the funnel body (1). A material passage slit (17) is left between the cone (16) and the inner wall of the conical part (12). The funnel body (1) is rotatably connected to a crankshaft (10) along its radial direction. One end of the crankshaft (10) is connected to a rotary motor (11). The crankshaft (10) can drive the cone (16) to move through the transmission assembly.

2. The plastic granule feeding funnel according to claim 1, characterized in that, The transmission assembly includes a connecting rod (8), the bottom end of which is rotatably connected to the top end of a cone (16) via a pin (13), and a second collar (9) is fixedly connected to the top end of the connecting rod (8). The crankshaft (10) has a crankshaft portion (5), and the second collar (9) is rotatably connected to the crankshaft portion (5).

3. The plastic granule feeding funnel according to claim 2, characterized in that, A telescopic rod (6) is provided between the cone (16) and the crankshaft (10), and the telescopic rod (6) enables the cone (16) to move up and down.

4. The plastic granule feeding funnel according to claim 3, characterized in that, The telescopic rod includes a slidingly sleeved outer cylinder (14) and an inner rod (15). The top end of the outer cylinder (14) is fixedly connected to a first collar (7). The crankshaft (10) has a straight shaft portion (4). The first collar (7) is rotatably connected to the straight shaft portion (4). The bottom end of the inner rod (15) is fixed to the cone (16).

5. A plastic granule feeding funnel according to claim 4, characterized in that, The outer cylinder (14) and inner rod (15) both have hollow channels. The top of the outer cylinder (14) is connected to an air pump through a connector (20). The cone (16) has a chamber (18) that communicates with the inner rod (15). The cone (16) has air holes (19) on its conical surface.

6. A plastic granule feeding funnel according to any one of claims 1-5, characterized in that, The funnel body (1) has a rim (2) at the top, and a bearing seat (3) is installed on the rim (2). The crankshaft (10) is rotatably connected to the bearing seat (3).

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