Mincing machine applied to plastic particle processing

Abstract

The utility model relates to a mincing machine applied to plastic particle processing. The mincing machine comprises a mincing assembly, the mincing assembly comprises a mincing support, a mincing fixing piece installed on the mincing support, a mincing piece installed in the mincing fixing piece and a mincing driving piece installed on the mincing support and used for driving the mincing piece to move. The noise reduction part is mounted in the mincing fixing part and is used for reducing noise generated when the plastic particles are minced; the noise reduction part comprises a noise reduction plate mounted on the inner wall of the mincing fixing part and noise reduction sponge arranged on the side, facing the mincing part, of the noise reduction plate; when the mincing piece is used for mincing plastic particles, the noise reduction plate installed on the mincing fixing piece can prevent noise from spreading outwards to a certain extent; and sound waves generated in the mincing process are effectively absorbed and reflected in cooperation with the silencing sponge, so that the harm of noise to the hearing of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a shredder used in the processing of plastic granules. Background Technology

[0002] In plastic pellet processing workshops, the shredder's components (such as blades and shredding teeth) need to operate at high speeds to effectively break the plastic pellets into smaller sizes. This high-speed rotation causes intense collisions and friction between the shredder components and the plastic pellets. For example, the blades produce high-frequency impact sounds when cutting the plastic pellets; the shredding teeth also produce harsh friction sounds when squeezing and grinding the pellets. This noise, combined with noise from other equipment, leads to severe noise pollution in the workshop. Prolonged exposure to high-noise environments can damage workers' hearing. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a low-noise shredder for processing plastic granules.

[0004] The present invention adopts the following technical solution:

[0005] A shredder for processing plastic granules includes a shredding assembly; the shredding assembly includes a shredding bracket, a shredding fixture mounted on the shredding bracket, a shredding component mounted within the shredding fixture, a shredding drive component mounted on the shredding bracket for driving the movement of the shredding component, and a noise reduction component mounted within the shredding fixture for reducing noise generated when plastic granules are shredded; the noise reduction component includes a sound-absorbing plate mounted on the inner wall of the shredding fixture and a sound-absorbing sponge disposed on the side of the sound-absorbing plate facing the shredding component.

[0006] Furthermore, the noise reduction component also includes a noise reduction portion disposed on the side of the noise-absorbing sponge facing the shredder.

[0007] Furthermore, the sound-absorbing part includes a sound-absorbing metal plate disposed on the sound-absorbing sponge and sound-absorbing holes disposed on the sound-absorbing metal plate.

[0008] Furthermore, the shredding fixture includes a shredding chamber installed on the shredding support, a shredding feed chamber installed on the side of the shredding chamber opposite to the shredding support, and a shredding discharge chamber installed on the side of the shredding chamber opposite to the shredding feed chamber; the shredding feed chamber and the shredding discharge chamber are connected through the shredding chamber; the noise reduction component is installed inside the shredding chamber.

[0009] Furthermore, the shredder used for processing plastic granules also includes a conveying assembly for conveying the shredded material, the conveying assembly being positioned opposite the shredded discharge bin.

[0010] Furthermore, the shredder used for processing plastic granules also includes a shock-absorbing assembly disposed at the bottom of the shredding support; the shock-absorbing assembly includes a connecting plate mounted on the shredding support, a shock-absorbing component mounted on the side of the connecting plate away from the shredding support, and a support plate mounted on the side of the shock-absorbing component away from the shredding support.

[0011] Furthermore, the shock absorber includes a plurality of rubber pillars installed between the connecting plate and the support plate.

[0012] Furthermore, the shock absorber also includes a spring mounted on the connecting plate; the spring is sleeved on the outside of the rubber column.

[0013] Furthermore, the shredder includes a rotating roller installed in the shredder chamber, a shredding section installed on the rotating roller, and limiting sections installed on the rotating roller on both sides of the shredding section to prevent the shredding section from shifting; the shredding drive is used to drive the rotating roller to rotate.

[0014] Furthermore, the shredding section includes a shredding fixed roller mounted on the rotating roller and shredding blades mounted on the shredding fixed roller.

[0015] The beneficial effects of this utility model are as follows:

[0016] The present invention relates to a shredder for processing plastic granules. When the shredder shreds the plastic granules, the sound-absorbing plate installed on the shredder fixing part can isolate the noise from propagating outward to a certain extent. In conjunction with the sound-absorbing sponge, it effectively absorbs and reflects the sound waves generated during the shredding process. Because the sound-absorbing sponge has tiny pores inside, the porous structure allows the sound to be reflected and refracted multiple times in the pores of the sponge. When the shredder generates noise during operation, the sound propagates to the sound-absorbing sponge. The elastic fibers and pores of the sponge can effectively buffer and absorb the energy of the sound, thus greatly reducing the noise transmitted from the shredder and reducing the damage of noise to the hearing of workers. Attached Figure Description

[0017] Figure 1 This is a perspective view of a shredder applied to plastic pellet processing according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A left sectional view of the shredding chamber of a shredder used in plastic pellet processing;

[0019] Figure 3 for Figure 1 A three-dimensional schematic diagram of the shock absorption components of a shredder used in plastic pellet processing;

[0020] Figure 4 for Figure 1 A three-dimensional schematic diagram of the shredder components used in plastic pellet processing;

[0021] Figure 5 for Figure 1 A three-dimensional schematic diagram of the shredding fixture and shredding support of a shredder used in plastic pellet processing. Detailed Implementation

[0022] 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.

[0023] 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.

[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 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.

[0025] Please see Figures 1 to 5This invention relates to a shredder for processing plastic granules, comprising a shredding assembly 10. The shredding assembly 10 includes a shredding support 11, a shredding fixing member 12 mounted on the shredding support 11, a shredding member 13 mounted within the shredding fixing member 12, a shredding drive member 14 mounted on the shredding support 11 for driving the movement of the shredding member 13, and a noise reduction member 15 mounted within the shredding fixing member 12 for reducing noise generated during the shredding of plastic granules. The noise reduction member 15 includes a sound-absorbing plate 150 mounted on the inner wall of the shredding fixing member 12 and a sound-absorbing sponge 151 disposed on the side of the sound-absorbing plate 150 facing the shredding member 13. In this embodiment, the sound-absorbing plate 150 has numerous tiny pores or fibrous structures inside.

[0026] The working principle of the shredder applied to plastic granule processing of this utility model is as follows: The shredding drive component 14 is installed on the shredding support 11; when the equipment starts working, the plastic granules are fed into the shredding fixture 12, and the shredding drive component 14 drives the shredding component 13, so that the shredding component 13 applies shearing force, impact force and friction force to the plastic granules; the plastic granules are crushed into smaller particles until the plastic granules reach the required degree of crushing; the sound-absorbing plate 150 is installed on the inner wall of the shredding fixture 12, which reduces noise by absorbing, reflecting and scattering sound. When the noise generated during the shredding process propagates to the sound-absorbing plate 150, some of the sound will enter the pores; the sound waves will be continuously reflected and refracted in the pores. In this process, the sound... The energy is gradually lost due to the friction between air molecules and the pore walls, thereby reducing the sound energy reflected back into the air and achieving the purpose of noise reduction. At the same time, the surface of the sound-absorbing plate 150 also reflects the sound, changing the direction of sound propagation, so that some sound will not be directly transmitted to the external environment. The sound-absorbing sponge 151 is located on the side of the sound-absorbing plate 150 facing the shredder 13, and its porous structure is the key to its sound absorption. When the noise generated by shredding comes into contact with the sound-absorbing sponge 151, the sound will enter the pores of the sponge. Inside the pores, the sound waves will be continuously reflected and refracted between the elastic fibers of the sponge and the pore walls. Due to the damping characteristics of the sponge material, the sound energy will be gradually absorbed and dissipated in this process.

[0027] Compared to existing technologies, the shredder of this invention, applied to plastic granule processing, can isolate noise transmission to a certain extent when the shredder 13 shreds the plastic granules. Combined with the sound-absorbing sponge 151, it effectively absorbs and reflects sound waves generated during shredding. Because the sound-absorbing sponge 151 has tiny pores, its porous structure allows sound to be reflected and refracted multiple times within the sponge's pores. When the shredder 13 generates noise, the sound travels to the sound-absorbing sponge 151, where the sponge's elastic fibers and pores effectively buffer and absorb the sound energy, significantly reducing the noise transmitted from the shredder and minimizing noise damage to workers' hearing. Secondly, the high-speed operation of the shredder 13 and its violent collisions with the plastic granules generate vibrations. These vibrations not only cause noise but may also affect the stability and service life of the shredder. The sound-absorbing plate 150 and the sound-absorbing sponge 151 in the noise reduction component 15 can, to a certain extent, provide buffering and shock absorption.

[0028] Please see Figure 2 The noise reduction component 15 also includes a noise reduction part disposed on the side of the noise reduction sponge 151 facing the shredder 13; specifically, the noise reduction part includes a noise reduction metal plate 152 disposed on the noise reduction sponge 151 and a sound absorption hole 153 disposed on the noise reduction metal plate 152. The sound-absorbing holes 153 allow noise to enter the space inside the sound-absorbing metal plate 152. When noise waves enter these sound-absorbing holes 153, they will undergo multiple reflections within the space inside the sound-absorbing metal plate 152. During this process, the energy of the sound waves will be continuously consumed. Because the sound-absorbing holes 153 change the propagation path of the sound, the sound does not propagate directly outward, but undergoes a complex reflection process inside the metal plate. Some of the sound energy is converted into heat energy during the reflection process, thereby effectively reducing the intensity of the noise propagating outward. The metal material itself has certain sound reflection characteristics. When the noise generated by shredding impacts the sound-absorbing metal plate 152, some of the sound will be reflected back into the shredding chamber 120. This causes the noise to undergo multiple reflections between the shredding chamber 120 and the sound-absorbing metal plate 152. Each reflection will result in some sound energy being absorbed by the sound-absorbing holes 153 or being lost during the reflection process, thereby reducing the amount of noise ultimately propagating outward. Moreover, the metal plate is relatively sturdy and can withstand a certain amount of impact, thus protecting the internal sound-absorbing sponge 151.

[0029] Please see Figure 1 , Figure 2 and Figure 5The shredding fixture 12 includes a shredding chamber 120 mounted on a shredding support 11, a shredding feed chamber 121 mounted on the side of the shredding chamber 120 opposite to the shredding support 11, and a shredding discharge chamber 122 mounted on the side of the shredding chamber 120 opposite to the shredding feed chamber 121. The shredding feed chamber 121 and the shredding discharge chamber 122 are connected through the shredding chamber 120. A noise reduction component 15 is installed inside the shredding chamber 120. The sequential connection of the shredding feed chamber 121, the shredding chamber 120, and the shredding discharge chamber 122 allows the plastic granules to complete the shredding process in a reasonable order. The plastic granules enter from the shredding feed chamber 121, are fully shredded by the shredding component 13 in the shredding chamber 120, and then smoothly discharged from the shredding discharge chamber 122. This linear material flow path, like an efficient production line, ensures the continuity of the plastic granule processing and improves production efficiency. For example, in large-scale plastic pellet processing, this smooth material flow can prevent pellet accumulation and blockage, allowing the entire processing to proceed stably. Since the shredding chamber 120 is the main noise-generating area, where the shredder 13 performs high-speed shredding of plastic pellets, it is the main source of noise. Installing the noise reduction component 15 inside the shredding chamber 120 can effectively control the root cause of noise. Noise reduction components such as the sound-absorbing plate 150, sound-absorbing sponge 151, and sound-absorbing section can directly act on the noise generated during the shredding process, minimizing the outward propagation of noise. This allows for more precise noise reduction targeting the core noise-generating area, thereby achieving better noise reduction results.

[0030] The shredder used in plastic pellet processing also includes a conveying assembly 20 for conveying the shredded material, which is positioned opposite the shredding discharge bin 122. The opposite positioning of the conveying assembly 20 and the shredding discharge bin 122 allows the shredded plastic pellets to be directly transferred from the discharge bin to the conveyor belt, achieving seamless integration of the shredding and conveying processes. This avoids manual handling or interruptions in intermediate steps, ensuring efficient and stable plastic pellet processing. For example, in an automated plastic pellet production line, the shredded pellets can be quickly conveyed to the next processing step, such as screening, mixing, or packaging, significantly shortening the production cycle and increasing output per unit time. The automatic conveying of the shredded material by the conveying assembly 20 reduces the need for manual intervention. It can also operate according to preset speeds and processes, eliminating the need for manual collection of materials from the discharge bin and transport to the next stage. This not only saves labor costs but also avoids the decline in production efficiency caused by the instability of manual operation.

[0031] Please see Figure 1 and Figure 3The shredder used for processing plastic granules also includes a shock-absorbing component 30 disposed at the bottom of the shredding support 11; the shock-absorbing component 30 includes a connecting plate 31 mounted on the shredding support 11, a shock absorber 32 mounted on the side of the connecting plate 31 away from the shredding support 11, and a support plate 33 mounted on the side of the shock absorber 32 away from the shredding support 11. During the crushing of plastic granules, the high-speed rotation of the crushing component 13 generates significant vibrations. If these vibrations are not controlled, they will cause the entire crusher to shake, affecting the stability and lifespan of the equipment. The damping component 32 in the damping assembly 30 can effectively absorb and buffer these vibrations. When the crusher vibrates, the vibration energy is transmitted to the damping component 32, which consumes the vibration energy through its own damping, reducing the crusher's shaking and allowing it to operate more stably. When the crusher's components collide or rub against each other due to vibration, additional noise is generated. Reducing vibration through the damping assembly 30 indirectly reduces noise generation. Furthermore, the damping assembly 30 can prevent vibration from being transmitted to the ground or other equipment through the crushing support 11. If the crusher is placed directly on the ground, vibration will propagate through solid media, causing resonance in the surrounding environment and amplifying the noise. With the damping assembly 30, especially the support plate 33, the crusher can be isolated from the ground, reducing noise problems caused by vibration propagation.

[0032] The shock absorber 32 includes multiple rubber columns 320 installed between the connecting plate 31 and the support plate 33. Rubber is a material with high elasticity and damping properties; when the shredder vibrates during operation, the rubber columns 320 undergo elastic deformation; when vibration is transmitted to the rubber columns 320, friction occurs between the rubber molecular chains, which converts the mechanical energy of the vibration into heat energy, thereby effectively absorbing and dissipating vibration energy; for example, compared with rigid materials such as metal, the rubber columns 320 can reduce the transmission of vibration to a greater extent, providing a good shock absorption effect for the shredder and making the equipment run more smoothly; the vibration frequencies generated during the shredding of plastic particles are diverse; due to its elasticity and complex internal molecular structure, the rubber columns 320... The structure can respond well to vibrations of different frequencies. Whether it is a slight vibration at high frequency or a large vibration at low frequency, the rubber column 320 can buffer it through its own elastic deformation. While absorbing vibration, the rubber column 320 can also effectively prevent the transmission of vibration noise. Because the rubber column 320 can cut off the transmission path of vibration between the connecting plate 31 and the support plate 33, it reduces the solid-borne sound caused by vibration. When the vibration of the shredder cannot be transmitted to the ground or other supporting structures through rigid connection, the transmission of noise caused by vibration will also be greatly reduced, thereby reducing the noise pollution when the shredder is working.

[0033] The damping component 32 also includes a spring 321 mounted on the connecting plate 31; the spring 321 is sleeved around the rubber column 320. The spring 321 and the rubber column 320 work together to achieve synergistic damping; the rubber column 320 primarily absorbs vibration energy through its own elastic deformation and the damping characteristics of its material, while the spring 321 has excellent elastic recovery capability; when the shredder vibrates, the spring 321 can rapidly extend and retract, storing the vibration energy as elastic potential energy, and then slowly releasing it, thereby buffering the vibration; the rubber column 320 and the spring 321 work simultaneously, with the rubber column 320 providing some damping and buffering for the vibration of the spring 321, reducing the rebound of the spring 321, making the entire damping process smoother and more efficient; the elastic coefficient of the spring 321 can be selected according to actual needs, allowing it to adapt to vibrations of different amplitudes. For larger-amplitude vibrations, spring 321 can fully utilize its extension and contraction characteristics to effectively buffer the vibration. For example, during the start-up or shutdown of the shredder, a large impact force and vibration amplitude may be generated. At this time, spring 321 can work with rubber column 320 to bear and buffer these vibrations, preventing the shredder from being subjected to excessive impact. Spring 321 is sleeved on the outside of rubber column 320, which can share part of the load and stress generated by vibration. Under long-term vibration environment, rubber column 320 bearing all the vibration pressure alone may lead to premature fatigue and damage. The presence of spring 321 can reduce the burden on rubber column 320, making the force on rubber column 320 more even, thereby extending the service life of rubber column 320.

[0034] Please see Figure 1 and Figure 4The shredder 13 includes a rotating roller 130 installed inside the shredder chamber 120, a shredding section installed on the rotating roller 130, and limiting sections 131 installed on both sides of the rotating roller 130 to prevent the shredding section from shifting. A shredding drive 14 drives the rotating roller 130 to rotate. The rotating roller 130, as the core driving component of the shredder 13, can rotate at high speed under the action of the shredding drive 14. The shredding section installed on the rotating roller 130 rotates together with the rotating roller 130, achieving shredding through the interaction between the shredding section and the plastic particles. For example, the shredding section can be a blade, a toothed structure, or other components with crushing functions. When the rotating roller 130 drives the shredding section to rotate, the shredding section can cut, grind, or squeeze the plastic particles at different angles and forces, thereby effectively shredding the plastic particles into the required size. This rotary shredding method can... To ensure that the plastic particles in the shredding chamber 120 are fully stirred and crushed, thus improving shredding efficiency, the shape and structure of the shredding section can be designed according to the specific requirements for shredding plastic particles. If it is necessary to shred the plastic particles into smaller particles, the shredding section can use finer blades or a toothed structure. If it is only for preliminary coarse crushing, the structure of the shredding section can be relatively simple. This flexibility allows the shredder to adapt to different processing techniques and product requirements. Whether it is producing fine plastic particle products or performing coarse crushing in plastic recycling, the needs can be met by adjusting the shredding section.

[0035] The shredding section includes a shredding fixed roller 132 mounted on the rotating roller 130, and shredding blades 133 mounted on the shredding fixed roller 132. The combination of the shredding fixed roller 132 and the shredding blade 133 forms a layered shredding structure. The shredding fixed roller 132, as the basic component, first contacts the plastic particles, providing initial agitation and dispersion. When the plastic particles contact the shredding fixed roller 132, they are driven by its surface, initially tumbling and moving within the shredding chamber 120. This helps to evenly distribute the plastic particles in the shredding area, preventing particle accumulation and creating favorable conditions for subsequent fine shredding by the shredding blade 133. The shredding blade 133, mounted on the shredding fixed roller 132, can achieve efficient cutting using the rotational power of the rotating roller 130. Due to its sharp edges, the shredding blade 133 can cut the plastic particles like scissors when rotating at high speed. Compared to using a simple roller structure, the cutting action of the blade is more direct and efficient. For example, for some larger plastic particles or blocky plastics, the shredding blade 133 can quickly divide them into smaller parts, which are then further refined by the agitation of the shredding fixed roller 132, thus achieving a finer shredding effect.

[0036] 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 mincer applied to processing of plastic particles, characterized by, The shredding machine for processing plastic particles comprises a shredding assembly; the shredding assembly comprises a shredding support, a shredding fixing element mounted on the shredding support, a shredding element mounted in the shredding fixing element, a shredding driving element mounted on the shredding support for driving the shredding element to move, and a noise reduction element mounted in the shredding fixing element for reducing noise generated when the plastic particles are shredded; the noise reduction element comprises a sound-absorbing plate mounted on the inner wall of the shredding fixing element and a sound-absorbing sponge arranged on the side of the sound-absorbing plate facing the shredding element.

2. The mincer for processing plastic particles according to claim 1, characterized in that, The noise reduction element further comprises a sound-absorbing part arranged on the side of the sound-absorbing sponge facing the shredding element.

3. The mincer for processing of plastic particles according to claim 2, characterized in that, The sound-absorbing part comprises a sound-absorbing metal plate arranged on the sound-absorbing sponge and a sound-absorbing hole arranged on the sound-absorbing metal plate.

4. The mincer for processing plastic particles according to claim 1, wherein The shredding fixing element comprises a shredding bin mounted on the shredding support, a shredding feeding bin mounted on the side of the shredding bin away from the shredding support, and a shredding discharging bin mounted on the side of the shredding bin away from the shredding feeding bin; the shredding feeding bin and the shredding discharging bin are connected through the shredding bin; and the noise reduction element is mounted in the shredding bin.

5. The mincer for processing plastic particles according to claim 4, wherein The shredding machine for processing plastic particles further comprises a conveying assembly for conveying the shredded materials, and the conveying assembly is arranged opposite to the shredding discharging bin.

6. The mincer for processing plastic particles according to claim 4, wherein The shredding machine for processing plastic particles further comprises a damping assembly arranged at the bottom of the shredding support; the damping assembly comprises a connecting plate mounted on the shredding support, a damping element mounted on the side of the connecting plate away from the shredding support, and a supporting plate mounted on the side of the damping element away from the shredding support.

7. The mincer for processing plastic particles according to claim 6, wherein The damping element comprises a plurality of rubber columns mounted between the connecting plate and the supporting plate.

8. The mincer for processing plastic particles according to claim 7, characterized in that, The damping element further comprises a spring mounted on the connecting plate; the spring is sleeved outside the rubber column.

9. The mincer for processing plastic particles according to claim 4, wherein The shredding element comprises a rotating roller mounted in the shredding bin, a shredding part mounted on the rotating roller, and a limiting part mounted on the rotating roller on both sides of the shredding part for preventing the shredding part from moving; and the shredding driving element is used for driving the rotating roller to rotate.

10. The mincer for processing plastic particles according to claim 9, wherein The shredding part comprises a shredding fixed roller mounted on the rotating roller and a shredding blade mounted on the shredding fixed roller.

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