A feed mechanism for a plastic extruder

Abstract

The utility model discloses a kind of feeding mechanism of plastic extruder in the field of feeding mechanism, including feed hopper, crushing assembly and vibration component, the one end of feed hopper has cavity with opening upwards, the side of feed hopper is provided with two side plates, two side plates are symmetrically arranged between, the inner wall of feed hopper is provided with two reinforcing plates, two reinforcing plates are symmetrically arranged between, the outside of feed hopper is provided with several fixed beams, welding is carried out between adjacent fixed beams, the one end of fixed beam is provided with several fixed plates, and adjacent fixed plate is symmetrically arranged between;The side plate, reinforcing plate and fixed beam of bilateral symmetry setting form firm structure, can effectively disperse the vibration generated by vibration motor in feeding process, can reduce the impact load that feed hopper receives, significantly improve the torsional strength and rigidity of feed hopper whole, avoid the deformation of feed hopper caused by long-term high load operation.

Description

Technical Field

[0001] This utility model relates to the field of feeding mechanisms, specifically a feeding mechanism for a plastic extruder. Background Technology

[0002] The feeding mechanism of a plastic extruder is a key component in a plastic processing production line. Its main function is to uniformly and continuously convey plastic granules or powder to the screw section of the extruder, ensuring the stability and efficiency of the extrusion process. A typical feeding mechanism usually consists of a feed hopper, a conveying device, and auxiliary components. Among these, the feed hopper, as the core component for material storage and guidance, directly affects the operational reliability of the equipment due to its structural strength.

[0003] In existing technologies, to address the "bridging" phenomenon (i.e., material forming voids and blocking discharge) caused by friction or electrostatic adsorption in plastic raw materials, some feeding mechanisms employ periodic vibration by adding vibration components (such as vibrating motors). While vibration effectively breaks down the adhesion between materials and promotes uniform discharge, long-term high-frequency vibration generates alternating loads, causing periodic impacts on the feeding hopper structure. Traditional feeding mechanisms, to meet lightweight requirements, typically employ single-plate structures or simple frame designs. Their key components, such as side plates and support beams, lack sufficient torsional support, and the fixing method often uses single-point bolt connections rather than integral welding. This design is prone to the following problems under vibration: stress concentration: vibration energy is transmitted through weak connection points (such as the edge of an unreinforced side plate), and the local stress exceeds the yield strength of the material; structural fatigue: long-term vibration causes the accumulation of metal lattice dislocations, resulting in irreversible deformation of components such as side plates and support beams; insufficient rigidity: the lack of a symmetrical reinforcement structure makes the feed hopper prone to torsional deformation under pressure, affecting its feeding speed and easily causing deformation of the edge of the feed hopper, which can block the material at the outlet of the feed hopper. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a feeding mechanism for a plastic extruder, which can effectively solve the technical problems of low torsional strength and poor rigidity of existing feeding mechanisms.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a feeding mechanism for a plastic extruder, including a feeding hopper, a crushing component and a vibration component. One end of the feeding hopper has an upward-opening cavity. Two side plates are provided on the side of the feeding hopper, and the two side plates are symmetrically arranged. Two reinforcing plates are provided on the inner wall of the feeding hopper, and the two reinforcing plates are symmetrically arranged. Several fixed beams are provided on the outside of the feeding hopper, and adjacent fixed beams are welded together. Several fixed plates are provided on one end of each fixed beam, and adjacent fixed plates are symmetrically arranged.

[0006] Furthermore, the vibration assembly includes a vibration motor and several springs. A mounting base is provided at the bottom of the feed hopper. One end of the vibration motor is connected to the mounting base by screws. A connecting plate is provided on the side of the side plate. One end of the spring is fixedly connected to the fixed beam, and the other end of the spring is fixedly connected to the connecting plate.

[0007] Furthermore, the crushing assembly includes a rotating motor disposed on the side of the feed hopper and a crushing roller disposed inside the feed hopper. Both ends of the crushing roller pass through the feed hopper and are rotatably connected to the feed hopper. The surface of the crushing roller is provided with a plurality of crushing blades, and adjacent crushing blades are arranged at equal intervals.

[0008] Furthermore, the bottom of the feed hopper is provided with several long bolts, which are symmetrically arranged between adjacent long bolts.

[0009] Furthermore, a number of positioning plates are provided between the two reinforcing plates, and adjacent positioning plates are symmetrically arranged.

[0010] Furthermore, a bottom frame is provided at the bottom of the fixed beam.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the feeding mechanism of the plastic extruder of this utility model has a stable structure formed by the symmetrically arranged side plates, reinforcing plates and fixed beams on both sides, which can effectively disperse the vibration generated by the vibrating motor during the feeding process, reduce the impact load on the feeding hopper, significantly improve the overall torsional strength and rigidity of the feeding hopper, and avoid deformation of the feeding hopper caused by long-term high-load operation. Attached Figure Description

[0012] Figure 1 This is a front view of the feeding mechanism of a plastic extruder according to the present invention;

[0013] Figure 2 This is a left view of the feeding mechanism of a plastic extruder according to the present invention;

[0014] Figure 3 This is a right view of the feeding mechanism of a plastic extruder according to the present invention;

[0015] Figure 4 This is a top view of the feeding mechanism of a plastic extruder according to the present invention;

[0016] Figure 5 This is a schematic diagram of the rotating roller of the feeding mechanism of a plastic extruder according to the present invention.

[0017] Numbering on the map:

[0018] 1-Feed hopper; 2-Cavity; 3-Fixed beam; 4-Side plate; 5-Reinforcing plate; 6-Fixed plate; 7-Rotating motor; 8-Rotating roller; 9-Crushing blade; 10-Vibrating motor; 11-Mounting base; 12-Spring; 13-Connecting plate; 14-Long bolt; 15-Positioning plate; 16-Bottom frame. Detailed Implementation

[0019] 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.

[0020] The following is combined Figures 1-5 The feeding mechanism of a plastic extruder according to this utility model is described in detail below:

[0021] A feeding mechanism for a plastic extruder includes a feeding hopper 1, a crushing assembly, and a vibrating assembly. One end of the feeding hopper 1 has an upward-opening cavity 2. Two side plates 4 are provided on the side of the feeding hopper 1, and the two side plates 4 are symmetrically arranged. Two reinforcing plates 5 are provided on the inner wall of the feeding hopper 1, and the two reinforcing plates 5 are symmetrically arranged. Several fixed beams 3 are provided on the outside of the feeding hopper 1, and adjacent fixed beams 3 are welded together. Several fixed plates 6 are provided on one end of each fixed beam 3, and adjacent fixed plates 6 are symmetrically arranged.

[0022] The vibration assembly includes a vibration motor 10 and several springs 12. The bottom of the feed hopper 1 is provided with a mounting base 11. One end of the vibration motor 10 is connected to the mounting base 11 by screws. The side of the side plate 4 is provided with a connecting plate 13. One end of the spring 12 is fixedly connected to the fixed beam 3, and the other end of the spring 12 is fixedly connected to the connecting plate 13.

[0023] The crushing assembly includes a rotating motor 7 disposed on the side of the feed hopper 1 and a crushing roller disposed inside the feed hopper 1. Both ends of the crushing roller pass through the feed hopper 1 and are rotatably connected to the feed hopper 1. The surface of the crushing roller is provided with a plurality of crushing blades 9, and adjacent crushing blades 9 are arranged at equal intervals.

[0024] The bottom of the feed hopper 1 is provided with a number of long bolts 14, which are symmetrically arranged between adjacent long bolts 14. By setting the long bolts 14, the feeding mechanism can be installed at the corresponding position of the plastic extruder. A number of positioning plates 15 are provided between the two reinforcing plates 5, which are symmetrically arranged between adjacent positioning plates 15. The bottom of the fixed beam 3 is provided with a bottom frame 16.

[0025] The vibration motor 10 is connected to the mounting base 11 by screws for easy disassembly and maintenance. The spring 12 connects the fixed beam 3 to the connecting plate 13 of the side plate 4, forming a vibration damping structure, which effectively improves the vibration effect. The vibration motor 10 generates vibration, causing the feed hopper 1 to vibrate, thereby quickly vibrating and dislodging the material on the feed hopper 1, allowing the material to be discharged from the feed hopper 1 quickly. At the same time, it avoids the material from sticking to the feed hopper 1 and causing accumulation. The equidistantly arranged crushing blades 9 are driven by the rotating motor 7 to achieve efficient and uniform crushing of the material, prevent large particles from clogging the feed inlet, and ensure the smoothness of continuous production. Symmetrical positioning plates 15 are added between the reinforcing plates 5 to further optimize the internal support structure of the feed hopper 1, resisting the local stress concentration caused by material impact and vibration. It is especially suitable for processing high-hardness or large-volume plastic raw materials. A bottom frame 16 is added to the bottom of the fixed beam 3 to distribute the load stress by expanding the support area, preventing the fixed beam 3 from bending and deforming due to long-term stress, and improving the durability of the overall structure.

[0026] In this embodiment, the rotary motor 7 is a YVF variable frequency speed control motor, which can be used with a frequency converter and can flexibly adjust the speed to adapt to different material hardness or fineness requirements. The vibrating motor 10 is a YZS high-frequency vibrating motor 10 with a frequency of up to 3000 times / minute. The high vibration frequency and good vibration effect can quickly vibrate and discharge the material from the feed hopper 1, and can quickly clear sticky materials. Both the rotary motor 7 and the vibrating motor 10 adopt conventional technology.

[0027] The feeding mechanism of a plastic extruder in this embodiment has a stable structure formed by the symmetrically arranged side plates 4, reinforcing plates 5 and fixed beams 3 on both sides. This structure can effectively disperse the vibration generated by the vibrating motor 10 during the feeding process, reduce the impact load on the feeding hopper 1, significantly improve the overall torsional strength and rigidity of the feeding hopper 1, and avoid deformation of the feeding hopper 1 caused by long-term high-load operation.

[0028] In use, the feeding mechanism is installed on the plastic extruder, and the material is directly put into the cavity 2 from one end of the feeding hopper 1. The control panel and control buttons on the plastic extruder are electrically connected to the rotary motor 7 and the vibrating motor 10. The plastic extruder controls the start or stop of the rotary motor 7 and the vibrating motor 10. The rotary motor 7 rotates, which drives the rotary roller 8 to rotate, so that the crushing blades 9 on the rotary roller 8 crush the material. The crushed material falls into the inside of the feeding hopper 1. The vibration motor 10 vibrates, which drives the feeding hopper 1 to vibrate, shaking out the crushed material attached to the inside of the feeding hopper 1. This can quickly discharge the material and further shake it into the plastic extruder for further processing.

[0029] 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, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A feeding mechanism of a plastic extruder, comprising a feeding hopper, a pulverizing assembly and a vibrating assembly, one end of the feeding hopper having a cavity with an opening upward, characterized in that: The feed hopper has two side plates arranged symmetrically on its side. The inner wall of the feed hopper has two reinforcing plates arranged symmetrically on its side. The feed hopper has several fixed beams arranged on its exterior. Adjacent fixed beams are welded together. One end of each fixed beam has several fixed plates arranged symmetrically on its exterior.

2. The feeding mechanism of a plastic extruder according to claim 1, characterized in that: The vibration assembly includes a vibration motor and several springs. A mounting base is provided at the bottom of the feed hopper. One end of the vibration motor is connected to the mounting base by screws. A connecting plate is provided on the side of the side plate. One end of the spring is fixedly connected to the fixed beam, and the other end of the spring is fixedly connected to the connecting plate.

3. The feeding mechanism of a plastic extruder according to claim 1, characterized in that: The crushing assembly includes a rotating motor disposed on the side of the feed hopper and a crushing roller disposed inside the feed hopper. Both ends of the crushing roller pass through the feed hopper and are rotatably connected to the feed hopper. The surface of the crushing roller is provided with a plurality of crushing blades, which are equidistantly arranged between adjacent crushing blades.

4. The feeding mechanism of a plastic extruder according to claim 1, characterized in that: The bottom of the feed hopper is provided with several long bolts, which are symmetrically arranged between adjacent long bolts.

5. The feeding mechanism of a plastic extruder according to any one of claims 1-4, characterized in that: Several positioning plates are provided between the two reinforcing plates, and the adjacent positioning plates are symmetrically arranged.

6. The feeding mechanism of a plastic extruder according to any one of claims 1-4, characterized in that: The bottom of the fixed beam is provided with a bottom frame.

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