Pultrusion equipment with noise reduction function

Abstract

The utility model discloses pultrusion equipment with a noise reduction function, which belongs to the field of glass fiber reinforced plastic processing and comprises a pultrusion frame, pultrusion main rollers are rotatably connected to the tops and the bottoms of two sides of inner cavities at two ends of the pultrusion frame, and a plurality of pultrusion auxiliary rollers are arranged among the four pultrusion main rollers. Sound insulation plates are fixedly connected to the two sides, the top and the bottom of an inner cavity of the pultrusion frame, and side plates are fixedly connected to the tops and the bottoms of a feeding port and a discharging port of the pultrusion frame; according to the pultrusion equipment with the noise reduction function, noise reduction cavities are formed in the side plates, conduction plates are arranged to make direct contact with glass fiber reinforced plastics, the noise reduction effect of the equipment is further enhanced, guide rails and guide grooves are formed in the noise reduction cavities, stable sliding of the conduction plates is ensured, and the stability and durability of the equipment are improved; and the noise reduction cavity is internally provided with the sound absorption cotton and the arc-shaped elastic piece, the noise reduction performance of the equipment is further improved, the design of the arc-shaped elastic piece is optimized, and the equipment can better adapt to noise fluctuation.

Description

Technical Field

[0001] This utility model belongs to the field of fiberglass processing technology, specifically relating to a pultrusion equipment with noise reduction function. Background Technology

[0002] Fiberglass pultrusion equipment is mainly used to produce various fiberglass pultruded products, such as glass sheets. The basic components of pultruded fiberglass profiles are resin and glass fiber. It is made by using fiber as a reinforcing material, resin as a crosslinking agent, and other auxiliary materials. It has a series of excellent properties such as high temperature resistance, corrosion resistance, high strength, low specific gravity, low moisture absorption, low elongation, and good insulation.

[0003] For example, CN 218749430 U discloses a fiberglass pultrusion equipment with noise reduction function, relating to the field of fiberglass pultrusion equipment. It includes a fiberglass pultrusion equipment body, with a damping plate at the bottom. This invention uses bolts to seal the working box with a sealing cover. Isolation plates and first sound insulation plates are installed on all four sides of the inner wall of the working box, increasing the sound insulation area. Several first sound-absorbing holes within the four first sound insulation plates absorb noise, working in conjunction with the connected first sound insulation plates to enhance noise reduction. A second sound insulation plate is provided, with multiple grooves inside, each groove containing several third sound-absorbing holes. This increases the working area of ​​the second sound insulation plate and the number of sound-absorbing holes. Thus, the several second and third sound-absorbing holes absorb the noise generated by the fiberglass body during pultrusion, facilitating comprehensive noise reduction.

[0004] While the above examples can have a certain attraction effect, the noise generated by pultrusion is easy to propagate along the fiberglass itself, resulting in poor noise reduction effect of the equipment. Therefore, this utility model provides a pultrusion equipment with noise reduction function. Utility Model Content

[0005] The purpose of this invention is to provide a pultrusion device with noise reduction function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pultrusion equipment with noise reduction function, comprising a pultrusion frame, wherein pultrusion main rollers are rotatably connected to the top and bottom of both sides of the inner cavity at both ends of the pultrusion frame, and multiple pultrusion auxiliary rollers are provided between the four pultrusion main rollers, and sound insulation plates are fixedly connected to both sides, top and bottom of the inner cavity of the pultrusion frame, and side plates are fixedly connected to the top and bottom of the feed inlet and discharge outlet of the pultrusion frame.

[0007] In a preferred embodiment, each of the sound insulation panels has a vacuum cavity inside.

[0008] In a preferred embodiment, a noise reduction cavity is formed on the side of the side plate facing the fiberglass, and a conductive plate is slidably connected inside the noise reduction cavity, with the conductive plate in contact with the fiberglass.

[0009] In a preferred embodiment, guide rails are fixedly connected to both sides of the noise reduction cavity, and guide grooves adapted to the guide rails are provided on both sides of the conductive plate.

[0010] In a preferred embodiment, sound-absorbing cotton is fixedly connected to the inner wall of the noise reduction cavity away from the conduction plate, and a connecting plate is fixedly connected to the bottom of the sound-absorbing cotton. The connecting plate and the conduction plate are connected by multiple arc-shaped elastic elements.

[0011] In a preferred embodiment, the curved elastic element has a weakening groove at the bend, an inner cavity inside the curved elastic element, and a through groove in its cross section.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This pultrusion equipment with noise reduction function has a noise reduction cavity opened on the side plate and a conduction plate that is in direct contact with the fiberglass, which further enhances the noise reduction effect of the equipment. By setting guide rails and guide grooves in the noise reduction cavity, the stable sliding of the conduction plate is ensured, improving the stability and durability of the equipment. Sound-absorbing cotton and arc-shaped elastic elements are set in the noise reduction cavity, which further improves the noise reduction performance of the equipment, and the design of the arc-shaped elastic elements is optimized to better adapt to noise fluctuations.

[0014] This pultrusion equipment with noise reduction function effectively improves the noise reduction performance of the equipment by setting sound insulation plates on both sides, top and bottom of the inner cavity of the pultrusion frame and opening a vacuum cavity inside the sound insulation plates. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a partial sectional view of the side panel.

[0018] In the diagram: 1. Pultrusion frame; 101. Sound insulation board; 102. Vacuum cavity; 2. Side plate; 201. Noise reduction cavity; 202. Guide rail; 203. Conducting plate; 2031. Guide groove; 204. Connecting plate; 205. Sound-absorbing cotton; 206. Arc-shaped elastic element; 2061. Weakening groove; 2062. Inner cavity; 2063. Through groove; 3. Pultrusion main roller; 301. Pultrusion auxiliary roller. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] Please see Figure 1-3 This utility model provides a pultrusion equipment with noise reduction function, including a pultrusion frame 1. Pultrusion main rollers 3 are rotatably connected to the top and bottom of both sides of the inner cavity at both ends of the pultrusion frame 1. Multiple pultrusion auxiliary rollers 301 are arranged between the four pultrusion main rollers 3. Sound insulation plates 101 are fixedly connected to both sides, top and bottom of the inner cavity of the pultrusion frame 1. Side plates 2 are fixedly connected to the top and bottom of the feed port and discharge port of the pultrusion frame 1. Each sound insulation plate 101 has a vacuum chamber 102 inside. The sound insulation plates 101 are fixedly connected to both sides, top and bottom of the inner cavity of the pultrusion frame 1. These sound insulation plates 101 play a key role in noise reduction. Side plates 2 are fixedly connected to the top and bottom of the feed inlet and discharge outlet of the pultrusion frame 1 to enclose the equipment and further reduce noise leakage. The material to be pultruded (such as fiberglass) is placed at the feed inlet of the pultrusion frame 1, the equipment is started, and the pultrusion main roller 3 and pultrusion auxiliary roller 301 begin to rotate, smoothly pulling the material into and through the entire pultrusion frame 1. During the pultrusion process, the sound insulation plate 101 and the side plates 2 work together to effectively absorb and isolate the noise generated by the equipment. The pultruded material is output from the discharge outlet, completing the entire pultrusion process. The vacuum chamber 102 inside 101 utilizes the characteristics of extremely low air density and difficulty in sound wave propagation under vacuum conditions to effectively absorb and isolate the noise generated during equipment operation. The side plate 2 and the sound insulation plate 101 fit tightly together to form a closed space, further reducing noise leakage. The smooth rotation of the pultrusion main roller 3 and the pultrusion auxiliary roller 301 reduces mechanical vibration and noise generation inside the equipment. Through the combined action of the sound insulation plate 101 and the side plate 2, the noise generated during equipment operation is effectively reduced, providing a more comfortable working environment for operators.

[0022] A noise reduction cavity 201 is formed on the side of the side plate 2 facing the fiberglass. A conduction plate 203 is slidably connected inside the noise reduction cavity 201 and contacts the fiberglass. Guide rails 202 are fixedly connected to both sides of the inner cavity of the noise reduction cavity 201. Guide grooves 2031 that are adapted to the guide rails 202 are formed on both sides of the conduction plate 203. Sound-absorbing cotton 205 is fixedly connected to the inner wall of the noise reduction cavity 201 away from the conduction plate 203. A connecting plate 204 is fixedly connected to the bottom of the sound-absorbing cotton 205. The connecting plate 204 and the conduction plate 203 are connected by multiple arc-shaped elastic elements 2. Connected to 06, the curved elastic element 206 has a weakening groove 2061 at its bend, an inner cavity 2062 inside, and a through groove 2063 in its cross-section. When the fiberglass material is drawn in by the pultrusion equipment, it first contacts the conduction plate 203. The sound wave (i.e., noise) is transmitted to the conduction plate 203 through the fiberglass material. The conduction plate 203 generates a small vibration under the action of the sound wave and slides in the noise reduction cavity 201 through the guide rail 202 and the guide groove 2031. These vibrations are further transmitted to the curved elastic element. On 206, the arc-shaped elastic element 206 generates greater vibration and consumes sound energy. Simultaneously, the sound waves are absorbed by the sound-absorbing cotton 205 within the noise reduction cavity 201, further reducing noise propagation. The conduction plate 203, acting as the first line of defense against sound waves, transmits the sound waves to the noise reduction structure through direct contact with the fiberglass. The arc-shaped elastic element 206 utilizes its flexibility and vibration characteristics to consume sound energy and reduce sound wave propagation. The sound-absorbing cotton 205, acting as the second line of defense, further absorbs and isolates sound waves, improving the noise reduction effect. Through the conduction plate 203, the arc-shaped elastic element 206, and the sound-absorbing cotton 205... The combined effect of cotton 205 significantly reduces the noise generated by the fiberglass pultrusion equipment, providing a quieter working environment for operators. The design of guide rail 202 and guide groove 2031 ensures the smooth sliding of the transmission plate 203, thereby enhancing the overall stability of the equipment. The flexibility and vibration characteristics of the arc-shaped elastic element 206 reduce the impact of sound waves on the equipment and extend its service life. The design of this noise reduction structure makes components such as the transmission plate 203, arc-shaped elastic element 206, and sound-absorbing cotton 205 easy to disassemble and replace, reducing the maintenance cost of the equipment.

[0023] The working principle and usage process of this utility model are as follows: First, the material to be pultruded (such as fiberglass) is placed at the feed inlet of the pultrusion frame 1. The equipment is started, and the pultrusion main roller 3 and pultrusion auxiliary roller 301 begin to rotate, smoothly pulling the material into and through the entire pultrusion frame 1. During the pultrusion process, the sound insulation plate 101 and the side plate 2 work together to effectively absorb and isolate the noise generated by the equipment. The pultruded material is output from the discharge port, completing the entire pultrusion process. The vacuum cavity 102 inside the sound insulation plate 101 utilizes the characteristics of extremely low air density and difficulty in sound wave propagation under vacuum conditions to effectively absorb and isolate the noise generated during equipment operation. The side plate 2 fits tightly with the sound insulation plate 101 to form a closed space, further reducing noise leakage. The smooth rotation of the pultrusion main roller 3 and pultrusion auxiliary roller 301 reduces mechanical vibration and noise generation inside the equipment. Through the combined action of the sound insulation plate 101 and the side plate 2, the noise generated during equipment operation is effectively reduced, providing a more comfortable working environment for operators. When the fiberglass material is pultruded by the equipment... Upon insertion, it first contacts the conduction plate 203. Sound waves (i.e., noise) propagate through the fiberglass material to the conduction plate 203. Under the influence of the sound waves, the conduction plate 203 vibrates slightly and slides within the noise reduction cavity 201 via the guide rail 202 and guide groove 2031. These vibrations are further transmitted to the arc-shaped elastic element 206, which generates greater vibrations and dissipates sound energy. Simultaneously, the sound waves are absorbed by the sound-absorbing cotton 205 within the noise reduction cavity 201, further reducing noise propagation. The conduction plate 203... As the first line of defense against sound waves, the arc-shaped elastic element 206 transmits sound waves to the noise reduction structure through direct contact with the fiberglass. The arc-shaped elastic element 206 consumes sound energy and reduces the propagation of sound waves by utilizing its flexibility and vibration characteristics. The sound-absorbing cotton 205 acts as the second line of defense, further absorbing and isolating sound waves to improve the noise reduction effect. Through the combined action of the conduction plate 203, the arc-shaped elastic element 206, and the sound-absorbing cotton 205, this noise reduction structure can significantly reduce the noise generated by the fiberglass pultrusion equipment, providing a quieter working environment for operators.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pultrusion apparatus with noise reduction function, comprising a pultrusion frame (1), characterized in that: The top and bottom of both sides of the inner cavity of the pultrusion frame (1) are rotatably connected to pultrusion main rollers (3), and multiple pultrusion auxiliary rollers (301) are provided between the four pultrusion main rollers (3). The two sides, top and bottom of the inner cavity of the pultrusion frame (1) are fixedly connected to sound insulation plates (101), and the top and bottom of the feed inlet and discharge outlet of the pultrusion frame (1) are fixedly connected to side plates (2).

2. The pultrusion equipment with noise reduction function according to claim 1, characterized in that: Each of the sound insulation panels (101) has a vacuum cavity (102) inside.

3. The pultrusion equipment with noise reduction function according to claim 1, characterized in that: The side plate (2) has a noise reduction cavity (201) on the side facing the fiberglass. A conduction plate (203) is slidably connected inside the noise reduction cavity (201), and the conduction plate (203) is in contact with the fiberglass.

4. The pultrusion equipment with noise reduction function according to claim 3, characterized in that: The noise reduction cavity (201) has guide rails (202) fixedly connected to both sides of the inner cavity, and the conductive plate (203) has guide grooves (2031) on both sides that are adapted to the guide rails (202).

5. A pultrusion equipment with noise reduction function according to claim 4, characterized in that: The noise reduction cavity (201) is fixedly connected to the inner wall away from the conduction plate (203) with sound-absorbing cotton (205), and the bottom of the sound-absorbing cotton (205) is fixedly connected to a connecting plate (204). The connecting plate (204) and the conduction plate (203) are connected by multiple arc-shaped elastic elements (206).

6. A pultrusion equipment with noise reduction function according to claim 5, characterized in that: The curved elastic element (206) has a weakening groove (2061) at the bend, an inner cavity (2062) is provided inside the curved elastic element (206), and a through groove (2063) is provided in the cross section of the curved elastic element (206).

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