Noise reduction structure of extruder

Abstract

The utility model relates to the technical field of extruders, and discloses a noise reduction structure of an extruder, which comprises a machine barrel, a base arranged below the machine barrel, a noise reduction cover arranged outside the machine barrel, a support groove arranged on the base and used for fixing the machine barrel, a support frame arranged below the support groove, a clamping groove arranged outside the support groove, and a cover body of the noise reduction cover comprises an inner shell, a noise reduction layer and an outer shell. A clamping buckle buckled with the clamping groove is arranged on the lower edge of the silencing cover, a first baffle and a second baffle are arranged on the two sides of the silencing cover respectively, the silencing cover is further provided with an air inlet pipe and an air outlet pipe, the other end of the air inlet pipe is connected with a fan, a water tank is arranged at the other end of the air outlet pipe, and an exhaust pipe is arranged above the water tank. The utility model has the following advantages: 1, the silencing cover is matched with the bracket to seal the machine barrel inside, and the silencing cover with a silencing structure can greatly reduce the noise generated inside the machine barrel; 2, the silencing cover is connected with the bracket in a buckling manner, so that the silencing cover can be easily mounted and dismounted;

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to an extruder noise reduction structure. Background Technology

[0002] Extruders are commonly used equipment in plastic production. Extruders generate noise during operation, and existing noise reduction devices typically target high-noise components such as fans or motors, as illustrated in Chinese Patent CN207724791U. However, some extruders use plastic granules as raw material, which generate significant noise during friction between the granules and the screw within the barrel. Existing noise reduction devices struggle to substantially reduce noise in the barrel area. Therefore, the inventors have developed a new invention. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a noise reduction structure for extruders, which has the advantages of good noise reduction effect and convenient disassembly and assembly.

[0004] To achieve the above objectives, this utility model provides a noise reduction structure for an extruder, including a barrel, a base below the barrel, and a sound-absorbing cover outside the barrel. The base has a groove for fixing the barrel, a support frame below the groove, and a slot outside the groove. The sound-absorbing cover includes an inner shell, a sound-absorbing layer, and an outer shell. A buckle that engages with the slot is provided along the lower edge of the sound-absorbing cover. A first baffle and a second baffle are respectively provided on both sides of the sound-absorbing cover. The sound-absorbing cover also has an air inlet pipe and an air outlet pipe. A fan is connected to the other end of the air inlet pipe, and a water tank is provided at the other end of the air outlet pipe. An exhaust pipe is provided above the water tank.

[0005] Furthermore, a drive device is provided at one end of the barrel, and a discharge pipe is provided at the other end of the barrel. The first baffle is provided with a first sealing port that cooperates with the drive device, and the second baffle is provided with a second sealing port that cooperates with the discharge pipe.

[0006] Furthermore, the top of the soundproof cover is provided with several third sealing ports.

[0007] Furthermore, the silencer cover is provided with a left shell and a right shell, and the connection between the left shell and the right shell is provided with interlocking protrusions and grooves.

[0008] Preferably, both the left and right housings are provided with a number of handles on their exteriors.

[0009] Furthermore, several support frames are arranged in sequence, and each support frame has a rubber pad at its bottom.

[0010] Furthermore, the bracket is a trapezoidal groove, and support bars are provided on both sides inside the bracket.

[0011] Beneficial Effects: Compared with the prior art, the noise reduction structure for an extruder of this utility model includes a barrel, a base below the barrel, a sound-absorbing cover outside the barrel, a groove for fixing the barrel on the base, a support frame below the groove, and a slot outside the groove. The sound-absorbing cover includes an inner shell, a sound-absorbing layer, and an outer shell. A buckle that engages with the slot is provided on the lower edge of the sound-absorbing cover. A first baffle and a second baffle are respectively provided on both sides of the sound-absorbing cover. The sound-absorbing cover also has an air inlet pipe and an air outlet pipe. A fan is connected to the other end of the air inlet pipe, and a water tank is provided at the other end of the air outlet pipe. An exhaust pipe is provided above the water tank. This utility model has the following advantages: 1. The sound-absorbing cover and the groove cooperate to enclose the barrel inside, and the noise generated inside the barrel can be greatly reduced by the sound-absorbing cover with a sound-absorbing structure; 2. The sound-absorbing cover and the groove are connected by a snap-fit, which can be easily installed and disassembled. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0013] Figure 2 This is a cross-sectional schematic diagram of the soundproof cover and base of this utility model.

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the base and the barrel of this utility model.

[0015] Figure 4 This is a schematic diagram of the soundproof cover structure of this utility model.

[0016] Figure 5 This is a partial cross-sectional view of the soundproof cover of this utility model.

[0017] The reference numerals in the figures include:

[0018] Barrel--1, Drive unit--11, Discharge pipe--12, Base--2, Slot--21, Support frame--22, Slot--23, Rubber pad--24, Support bar--25, Silencer cover--3, Left shell--301, Right shell--302, Protrusion--303, Groove--304, Handle--305, Inner shell--31, Sound absorption layer--32, Outer shell--33, Buckle--34, First baffle--35, First sealing port--351, Second baffle--36, Second sealing port--361, Third sealing port--37, Air inlet pipe--4, Fan--41, Air outlet pipe--5, Water tank--51, Exhaust pipe--52. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1 to 5 This utility model will be described in detail.

[0020] This utility model discloses a noise reduction structure for an extruder, including a barrel 1, a base 2 below the barrel 1, and a sound-absorbing cover 3 on the outside of the barrel 1. The base 2 is provided with a groove 21 for fixing the barrel 1, a support frame 22 is provided below the groove 21, and a slot 23 is provided on the outside of the groove 21. The cover of the sound-absorbing cover 3 includes an inner shell 31, a sound-absorbing layer 32, and an outer shell 33. The lower edge of the sound-absorbing cover 3 is provided with a buckle 34 that engages with the slot 23. The sound-absorbing cover 3 can be easily installed and removed through the buckle 34 connection. The silencer 3 has a first baffle 35 and a second baffle 36 on both sides. The silencer 3 is a geometric cover shape. After the silencer 3 and the bracket 21 are fitted together, a closed cavity is formed inside to enclose the machine barrel 1. Specifically, the inner shell 31 of the silencer 3 has a certain gap with the machine barrel 1. The inner shell 31 is made of rubber and has a certain heat insulation effect. The sound-absorbing layer 32 is filled with sound-absorbing cotton, which can significantly reduce noise and prevent high-decibel noise from escaping. The outer shell 33 is made of acrylic sheet. In this utility model, the silencer 3 can significantly reduce the noise generated inside the machine barrel 1 and improve the environmental protection of the factory. The silencer 3 is also provided with an air inlet pipe 4 and an air outlet pipe 5. The other end of the air inlet pipe 4 is connected to a fan 41, and the other end of the air outlet pipe 5 is provided with a water tank 51. An exhaust pipe 52 is provided above the water tank 51. The blower 41 blows air into the silencer 3, and discharges the hot air inside through the exhaust pipe 5 to the water tank 51, which is filled with liquid water. The end of the exhaust pipe 52 extends into the water from top to bottom, and the hot air is discharged in the water, which can reduce the noise generated during exhaust. The gas floating in the water is finally discharged through the exhaust pipe 52. This structure can further reduce the generation of noise and improve the noise reduction effect.

[0021] A drive device 11 is provided at one end of the barrel 1, and a discharge pipe 12 is provided at the other end of the barrel 1. A screw is located inside the barrel 1. This structure constitutes the body structure of an extruder. The first baffle 35 is provided with a first sealing port 351 that cooperates with the drive device 11, and the second baffle 36 is provided with a second sealing port 361 that cooperates with the discharge pipe 12. In this invention, the silencing cover 3 covers the body of the extruder, and its silencing structure reduces the high-decibel noise generated by the friction between the material and the screw inside the barrel 1.

[0022] The top of the noise-absorbing cover 3 is provided with several third sealing ports 37. When feeding equipment such as feed pipes and feeders are provided above the barrel 1 of the extruder, the third sealing ports 37 can cooperate with these devices to seal them and prevent noise from escaping from the locations of these equipment accessories.

[0023] The muffler 3 is provided with a left shell 301 and a right shell 302. The connection between the left shell 301 and the right shell 302 is provided with interlocking protrusions 303 and grooves 304. In this utility model, the muffler 3 is provided with an outer shell 33, which has the characteristics of high hardness and deformation resistance. Therefore, an integrated muffler 3 is difficult and inconvenient to disassemble. In this solution, the muffler 3 is divided into two parts: a left shell 301 and a right shell 302, which facilitates disassembly and assembly.

[0024] Both the left housing 301 and the right housing 302 are provided with several handles 305 on their exteriors. The extruder barrel 1 is usually quite long. To facilitate one-time assembly and disassembly, multiple workers can hold the handles 305 to install and remove the muffler 3, thereby increasing the speed of muffler 3 installation and disassembly.

[0025] Several support frames 22 are arranged in sequence, and each support frame 22 has a rubber pad 24 at its bottom. The support frames 22 are made of steel and have high supporting force. During the operation of the extruder, vibrations will occur to some extent. The rubber pads 24 can prevent the support frames 22 from shifting and improve stability.

[0026] The slot 21 is a trapezoidal slot, and support bars 25 are provided on both sides inside the slot 21. The support bars 25 are used to support the bottom of the barrel 1, so that there is a gap between the barrel 1 and the slot 21, reducing the direct heat conduction of the slot 21, facilitating the flow of external gas in the barrel 1, and improving heat dissipation performance.

[0027] The above description is only a preferred embodiment of this utility model. For those skilled in the art, based on the concept of this invention, there will be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model. 。

Claims

1. A noise reduction structure for an extruder, comprising a barrel (1), characterized in that: A base (2) is provided below the barrel (1), and a silencer cover (3) is provided outside the barrel (1). The base (2) is provided with a slot (21) for fixing the barrel (1). A support frame (22) is provided below the slot (21). A slot (23) is provided outside the slot (21). The cover of the silencer cover (3) includes an inner shell (31), a sound-absorbing layer (32), and an outer shell (33). A buckle (34) that engages with the slot (23) is provided on the lower edge of the silencer cover (3). A first baffle (35) and a second baffle (36) are provided on both sides of the silencer cover (3). The silencer cover (3) is also provided with an air inlet pipe (4) and an air outlet pipe (5). A fan (41) is connected to the other end of the air inlet pipe (4), and a water tank (51) is provided at the other end of the air outlet pipe (5). An exhaust pipe (52) is provided above the water tank (51).

2. The noise reduction structure for an extruder according to claim 1, characterized in that: One end of the barrel (1) is provided with a drive device (11), and the other end of the barrel (1) is provided with a discharge pipe (12). The first baffle (35) is provided with a first sealing port (351) that cooperates with the drive device (11), and the second baffle (36) is provided with a second sealing port (361) that cooperates with the discharge pipe (12).

3. The noise reduction structure for an extruder according to claim 1, characterized in that: The top of the silencing cover (3) is provided with several third sealing ports (37).

4. The noise reduction structure for an extruder according to claim 1, characterized in that: The silencer cover (3) is provided with a left shell (301) and a right shell (302), and the connection between the left shell (301) and the right shell (302) is provided with interlocking protrusions (303) and grooves (304).

5. The noise reduction structure for an extruder according to claim 4, characterized in that: Both the left housing (301) and the right housing (302) are provided with a number of handles (305) on their exteriors.

6. The noise reduction structure for an extruder according to claim 1, characterized in that: Several support frames (22) are arranged in sequence, and each support frame (22) has a rubber pad (24) at its bottom.

7. A noise reduction structure for an extruder according to any one of claims 1 to 6, characterized in that: The bracket (21) is a trapezoidal groove, and support bars (25) are provided on both sides inside the bracket (21).

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