Noise reduction device for modified plastic granulation workshop
By designing a noise reduction device in the modified plastic granulation workshop and using structures such as inclined conveyor belts and partitions, the noise problem during the transportation of plastic particles was solved, and the effect of reducing noise pollution was achieved.
Patent Information
- Application Number
- CN202422752133.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-12
AI Technical Summary
In the process of modified plastic granulation, the noise problem of the pelletizer has not been effectively solved, especially the noise generated by collision and friction during the transportation of plastic pellets affects the workshop environment.
A noise reduction device for a modified plastic granulation workshop was designed, which includes a pelletizing table and a soundproof cover. A noise reduction conveyor is set in the unloading channel. An inclined conveyor belt and partition are used, combined with rubber or silicone partitions and soundproof felt noise reduction pads to reduce the collision and friction noise of plastic particles.
It effectively reduces the collision and friction noise of plastic particles during transportation, improves the noise environment of the workshop, and reduces noise pollution.
Smart Images
Figure CN223407069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of noise reduction in modified plastic granulation, and provides a noise reduction device for a modified plastic granulation workshop. Background Art
[0002] In modern industrial production, modified plastic pelletizing plants are a crucial step in plastics processing, and their production efficiency and working environment are crucial to the overall production process. However, the noise generated during the pelletizing process not only affects the physical and mental health of workers, but can also reduce work efficiency and even disrupt the surrounding environment. This is particularly true when the plastic is cut after extrusion, resulting in significant vibration from the rotating blades and noise from the pelletizing process.
[0003] In the existing technology, after the plastic is hot-melt extruded, it will be transported from the cooling pool, and then the plastic strips will be transported to the pelletizer for pelletizing. In order to alleviate the noise of the pelletizer, a sound insulation cover is mainly installed on the pelletizer part to reduce the noise of the pelletizer part. However, after the plastic is pelletized, it will be transported outward along the channel reserved by the sound insulation cover, so that the plastic particles will collide and rub with the conveying channel, which will cause secondary noise, thereby affecting the environment in the workshop. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a noise reduction device for a modified plastic granulation workshop, so as to solve the technical problems mentioned in the above background technology.
[0005] The above technical objectives of the present invention are achieved through the following technical solutions:
[0006] A noise reduction device for a modified plastic pelletizing workshop, comprising a pelletizing table and a soundproof enclosure, wherein the soundproof enclosure is fixedly mounted on the top of the pelletizing table, a material discharge channel is fixedly connected to the side of the soundproof enclosure, a groove is formed on the inner bottom sidewall of the material discharge channel, a noise reduction conveying member is disposed in the groove, and the material discharge channel is inclined downward in a direction away from the soundproof enclosure;
[0007] The noise reduction conveying member includes two rotating shafts, a conveyor belt, a conveying trough and a discharge trough. The two rotating shafts are rotatably installed at the two end portions of the inner wall of the groove respectively. The conveyor belt is wound around the outer peripheral sides of the two rotating shafts. There are several conveying troughs, and the conveying troughs are opened on the outer wall of the conveyor belt. Several conveying troughs are distributed in an array along the circumference direction of the outer wall of the conveyor belt. The discharge trough is opened on the bottom side wall of the discharge channel.
[0008] In a preferred example, the present invention can be further configured as follows: a number of partition plates are connected to the top side wall of the discharge channel, and the partition plates are made of rubber or silicone material.
[0009] In a preferred example, the present invention can be further configured as follows: a number of discharge holes are opened on the sound insulation cover, and the discharge holes are respectively located between two adjacent partition plates.
[0010] In a preferred example, the present invention can be further configured as follows: noise reduction pads are laid on the outer peripheral side of the conveyor belt and in the conveyor trough, and the noise reduction pads are made of sound insulation felt.
[0011] In a preferred example, the present invention can be further configured as follows: a plurality of partition plates are connected to the side wall of the sound insulation enclosure at one end close to the sound insulation enclosure, and a gap is left between the bottom of the partition plate and the outer peripheral side of the conveyor belt.
[0012] In a preferred example, the present invention can be further configured as follows: a gap is left between the outer peripheral side of the conveyor belt and the bottom side wall of the groove, and a gap is left between the outer peripheral side of the conveyor belt and the side wall of the groove.
[0013] In summary, the present invention has at least one of the following beneficial technical effects:
[0014] 1. This noise reduction device for a modified plastic granulation workshop can reduce the noise generated by the collision of plastic particles when they fall into the feeding channel, avoid the noise generated by the collision of plastic particles with the bottom and side walls of the feeding channel, and avoid the noise generated by the sliding of plastic particles and the friction with the feeding channel, thereby reducing the emission of noise and achieving the effect of reducing the impact of noise on the surrounding environment;
[0015] 2. This noise reduction device for a modified plastic granulation workshop is designed to prevent plastic pellets from being transported to the feed channel without obstruction, which can lead to the pellets easily converging together. This can cause multiple pellets to collide with each other during the falling process, generating noise. A partition plate is used to divert the plastic pellets that fall into the feed channel, reducing the number of collisions between the pellets and thus alleviating the noise generated by the collisions.
[0016] 3. This noise reduction device for a modified plastic pelletizing workshop has several discharge holes on the sound insulation board, located between two corresponding partitions. This allows the pelletized plastic to be discharged from the discharge holes, further diverting the plastic particles and reducing the chance of multiple plastic particles colliding with each other when they fall into the box unloading channel, thereby improving the noise reduction effect.
[0017] 4. This noise reduction device for a modified plastic granulation workshop is provided with noise reduction pads on the outer periphery of the conveyor belt and the inner sidewall of the conveyor trough. The noise reduction pads are made of sound-insulating felt. When plastic pellets fall onto the conveyor belt, they can directly contact the noise reduction pads, reducing the elasticity of the plastic pellets when they collide with the conveyor belt. This prevents the plastic pellets from bouncing back and colliding with each other due to the elasticity of the conveyor belt, thereby preventing the plastic pellets from generating noise due to secondary collisions caused by the elasticity of the conveyor belt.
[0018] 5. This noise reduction device for a modified plastic granulation workshop has a partition plate connected to the soundproof enclosure at one end close to the soundproof enclosure to prevent a gap from being left between the soundproof enclosure and the partition plate, which would cause plastic particles to pass through the gap between the soundproof enclosure and the partition plate, thereby increasing the range of movement of the plastic particles and increasing the probability of the plastic particles colliding with each other. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a noise reduction device for a modified plastic granulation workshop.
[0021] Figure 2 The utility model is a schematic diagram of the internal structure of a material discharge channel of a noise reduction device for a modified plastic granulation workshop.
[0022] Figure 3 The utility model is a schematic diagram of the discharge hole structure of a noise reduction device for a modified plastic granulation workshop.
[0023] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a conveyor belt of a noise reduction device for a modified plastic granulation workshop.
[0024] In the figure, 1. pelletizing table; 2. sound insulation cover; 3. discharge channel; 4. groove; 5. noise reduction conveyor; 6. rotating shaft; 7. conveyor belt; 8. conveyor trough; 9. discharge trough; 10. partition plate; 11. discharge hole; 12. noise reduction pad. DETAILED DESCRIPTION
[0025] The present invention will be described in further detail below with reference to the accompanying drawings. Example
[0026] Reference Figure 1-Figure 3The utility model discloses a noise reduction device for a modified plastic granulation workshop, comprising a pelletizing table 1 and a soundproof enclosure 2. The soundproof enclosure 2 is fixedly mounted on the top of the pelletizing table 1. A material discharge channel 3 is fixedly connected to the side of the soundproof enclosure 2. A groove 4 is provided on the bottom side wall of the material discharge channel 3. A noise reduction conveying member 5 is provided in the groove 4. The material discharge channel 3 is inclined downward in a direction away from the soundproof enclosure 2.
[0027] The noise reduction conveying member 5 includes two rotating shafts 6, a conveyor belt 7, a conveying trough 8 and a discharge trough 9. The two rotating shafts 6 are rotatably installed on the two end portions of the inner wall of the groove 4 respectively. The conveyor belt 7 is wound on the outer peripheral side of the two rotating shafts 6. There are several conveying troughs 8. The conveying troughs 8 are opened on the outer wall of the conveyor belt 7. Several conveying troughs 8 are distributed in an array along the circumference direction of the outer wall of the conveyor belt 7. The discharge trough 9 is opened on the bottom side wall of the discharge channel 3.
[0028] In this embodiment, after the modified plastic is melted and extruded, it passes through a water pool and is then transported to a pelletizing station 1 for pelletizing. The pelletized plastic particles are then fed into a discharge channel 3, where they fall onto a conveyor belt 7 and then into a conveyor trough 8.
[0029] Because the discharge channel 3 is transported in a direction away from the soundproof enclosure 2, the conveyor belt 7 is also tilted in a direction away from the soundproof enclosure 2. At this time, when the plastic particles fall on the conveyor belt 7, they will fall into the conveying trough 8 due to the tilt of the conveyor belt 7, thereby avoiding friction or collision with the discharge channel 3 to cause noise. At the same time, the conveyor belt 7 is made of a composite material of rubber and fiber, which reduces the noise caused by the collision of plastic particles with hard objects.
[0030] As the number of plastic particles increases, the number of plastic particles in the upward conveying trough 8 of the conveyor belt 7 also increases, thereby increasing the weight in the upward conveying trough 8 of the conveyor belt 7. Since the conveyor belt 7 is arranged at an angle, the side of the conveying trough 8 away from the sound insulation cover 2 will also be subjected to the weight pressure of the plastic particles. Subsequently, the conveyor belt 7 will rotate due to the gravity of the plastic particles.
[0031] Due to the influence of the weight of the plastic particles, the conveyor belt 7 rotates, and the conveyor belt 7 rotates clockwise, thereby conveying the plastic particles toward the lower trough 9, and finally sending the plastic particles from the lower trough 9 to the discharge channel 3, so that the plastic particles can be collected centrally;
[0032] In summary, the utility model achieves the goal of avoiding the collision of plastic particles with the bottom side wall and side wall of the discharge channel 3 during the pelletizing process of plastic granulation, thereby emitting a large noise, and at the same time allowing the plastic particles to fall directly onto the conveyor belt 7, thereby slowing down the noise generated after the plastic particles fall, thereby achieving the effect of improving the noise environment in the workshop.
[0033] In a further preferred embodiment of the present invention, Figure 2 As shown, a number of partition plates 10 are connected to the top side wall of the discharge channel 3, and the partition plates 10 are made of rubber or silicone material.
[0034] In this embodiment, the plastic particles are unobstructed when being transported into the feed channel 3, which can easily cause the plastic particles to aggregate together, causing multiple plastic particles to collide with each other during the falling process, thereby generating noise. The partition plate 10 is used to divert the plastic particles that fall into the feed channel 3, reducing the number of collisions between the plastic particles and thus reducing the noise generated by the collisions.
[0035] The partition plate 10 is made of rubber or silicone material, so that when the plastic particles collide with the partition plate 10 , the sound generated by the collision between the plastic particles and the partition plate 10 can be reduced, thereby reducing the impact of noise on the surrounding environment.
[0036] In a further preferred embodiment of the present invention, Figure 2-3 As shown, the sound insulation cover 2 is provided with a number of discharge holes 11 , and the discharge holes 11 are respectively located between two adjacent partition plates 10 .
[0037] In this embodiment, a plurality of discharge holes 11 are provided on the sound insulation board, so that the discharge holes 11 are located between the corresponding two partition plates 10, so that the pelletized plastic can be discharged from the discharge holes 11, further diverting the plastic particles, reducing the chance of multiple plastic particles colliding with each other when the plastic particles fall into the box discharge channel 3, thereby improving the noise reduction effect.
[0038] In a further preferred embodiment of the present invention, Figure 4 As shown, noise reduction pads 12 are laid on the outer peripheral side of the conveyor belt 7 and in the conveying trough 8, and the noise reduction pads 12 are made of sound insulation felt.
[0039] In this embodiment, noise reduction pads 12 are laid on the outer peripheral side of the conveyor belt 7 and the inner wall of the conveyor trough 8, and the noise reduction pads 12 are made of sound insulation felt, so that when the plastic particles fall on the conveyor belt 7, they can directly contact the noise reduction pads 12, which slows down the elasticity of the plastic particles when they collide with the conveyor belt 7, and avoids the plastic particles from bouncing back and colliding with each other due to the elasticity of the conveyor belt 7, thereby generating noise.
[0040] In a further preferred embodiment of the present invention, Figure 2 As shown, one end of a plurality of the partition plates 10 close to the soundproof enclosure 2 is connected to the side wall of the soundproof enclosure 2 , and a gap is left between the bottom of the partition plates 10 and the outer peripheral side of the conveyor belt 7 .
[0041] In this embodiment, the partition plate is connected to the sound insulation enclosure 2 at one end thereof close to the sound insulation enclosure 2, thereby preventing a gap from being left between the sound insulation enclosure 2 and the partition plate 10, thereby causing the plastic particles to pass through the gap between the sound insulation enclosure 2 and the partition plate 10, thereby increasing the range of movement of the plastic particles and increasing the probability of the plastic particles colliding with each other.
[0042] A gap is left between the bottom of the partition plate 10 and the outer peripheral side of the conveyor belt 7 to prevent the conveyor belt 7 from rubbing against the bottom side of the partition plate 10 when rotating, so that the bottom side of the partition plate 10 generates a blocking force on the conveyor belt 7, thereby affecting the efficiency of the conveyor belt 7 in conveying plastic particles.
[0043] In a further preferred embodiment of the present invention, Figure 2-3 As shown, a gap is left between the outer peripheral side of the conveyor belt 7 and the bottom side wall of the groove 4 , and a gap is left between the outer peripheral side of the conveyor belt 7 and the side wall of the groove 4 .
[0044] In this embodiment, a gap is provided between the outer periphery of the conveyor belt 7 and the bottom sidewall of the groove 4, and also between the outer periphery of the conveyor belt 7 and the sidewall of the groove 4. The conveyor belt 7 is initially stretched, and its inner periphery is in contact with the corresponding rotating shaft 6. This prevents the conveyor belt 7 from contacting the bottom sidewall and sidewall of the groove 4 during rotation, thereby preventing the conveyor belt 7 from being blocked by the sidewall and bottom sidewall of the groove 4 during rotation and affecting the conveyance of the plastic particles.
[0045] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.
Claims
1. A noise reduction device for a modified plastic granulation workshop, comprising a pelletizing table (1) and a soundproof enclosure (2), wherein the soundproof enclosure (2) is fixedly mounted on the top of the pelletizing table (1), characterized in that: A material discharge channel (3) is fixedly connected to the side of the soundproof enclosure (2), a groove (4) is provided on the inner bottom side wall of the material discharge channel (3), a noise reduction conveying member (5) is provided in the groove (4), and the material discharge channel (3) is inclined downward in a direction away from the soundproof enclosure (2); The noise reduction conveying member (5) includes two rotating shafts (6), a conveyor belt (7), a conveying trough (8) and a discharge trough (9), wherein the two rotating shafts (6) are rotatably mounted on the two end portions of the inner side wall of the groove (4), the conveyor belt (7) is wound around the outer peripheral side of the two rotating shafts (6), the number of the conveying troughs (8) is several, the conveying troughs (8) are opened on the outer side wall of the conveyor belt (7), and several conveying troughs (8) are arranged in an array along the circumference direction of the outer side wall of the conveyor belt (7), and the discharge trough (9) is opened on the bottom side wall of the discharge channel (3).
2. A noise reduction device for a modified plastic granulation workshop according to claim 1, characterized in that: A number of partition plates (10) are connected to the inner top side wall of the discharge channel (3), and the partition plates (10) are made of rubber or silicone material.
3. A noise reduction device for a modified plastic granulation workshop according to claim 2, characterized in that: The sound insulation cover (2) is provided with a number of discharge holes (11), and the plurality of discharge holes (11) are respectively located between two adjacent partition plates (10).
4. A noise reduction device for a modified plastic granulation workshop according to claim 3, characterized in that: Noise reduction pads (12) are laid on the outer peripheral side of the conveyor belt (7) and inside the conveyor trough (8), and the noise reduction pads (12) are made of sound insulation felt.
5. A noise reduction device for a modified plastic granulation workshop according to claim 4, characterized in that: One end of a plurality of the partition plates (10) close to the soundproof enclosure (2) is connected to the side wall of the soundproof enclosure (2), and a gap is left between the bottom of the partition plate (10) and the outer peripheral side of the conveyor belt (7).
6. A noise reduction device for a modified plastic granulation workshop according to claim 5, characterized in that: A gap is left between the outer peripheral side of the conveyor belt (7) and the bottom side wall of the groove (4), and a gap is left between the outer peripheral side of the conveyor belt (7) and the side wall of the groove (4).