Length trimming device for fiber-toughened non-metal sound barrier

Abstract

The utility model discloses a fiber toughening nonmetal sound barrier length trimming device which comprises a rack, the rack is provided with a conveying belt which is driven by a first driving device and used for conveying a sound barrier, and the rack is provided with a first cutting blade which is driven by a second driving device and used for cutting the sound barrier on the conveying belt. The first cutting blade can be close to and away from a sound barrier located on the conveying belt in the front-back direction and the left-right direction, the conveying belt comprises a belt body, the belt body makes contact with the sound barrier through a plurality of protrusions arranged on the outer surface, and the machine frame is provided with a limiting mechanism. The top ends of the protrusions are located above the top end of the belt body, when the first cutting blade cuts to the bottom of the sound barrier, the bottom of the first cutting blade makes contact with the protrusions or the bottom of the first cutting blade is located in the interval between the adjacent protrusions, the first cutting blade is prevented from making direct contact with the belt body, and the overall structural stability of the belt body is guaranteed. The limiting mechanism prevents the sound barrier from displacing when the sound barrier is cut by the first cutting blade.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound barrier processing device technical field, concretely relates to a kind of fibre toughening nonmetallic sound barrier length trimming device. BACKGROUND

[0002] Sound barrier is used for the noise reduction of highway, expressway, elevated road bridge and other noise sources, reduces the influence of noise on surrounding area, and the type of sound barrier has many, such as metal sound barrier, nonmetallic sound barrier.In the material of nonmetallic sound barrier, ECP is a kind of extruded fibre cement board, also called as fair-faced concrete hollow board, which is formed by high pressure extrusion with silicate cement, light aggregate, silica sand and toughening fiber as main raw materials, has good toughness and is not easy to break, and is a common nonmetallic sound barrier material.This kind of sound barrier is long strip as a whole, to meet the size requirement of sound barrier, it needs to be cut and trimmed in length direction after being made;Or due to process requirement, processing equipment limitation, the sound barrier made needs to be cut into multiple shorter sound barriers.When cutting sound barrier, if traditional rotating roller conveyor is used to convey sound barrier, cutting piece needs to avoid rotating roller, and cutting piece needs to be located in the interval between adjacent two rotating rollers, otherwise rotating roller is easily damaged, when cutting sound barriers of different lengths, operating personnel need to calculate and adjust the cutting position of cutting piece to avoid rotating roller, which is time-consuming and laborious;If traditional belt conveyor is used to convey sound barrier, cutting piece is easily damaged when cutting to the bottom of sound barrier, which causes the fracture of conveying belt, and the maintenance cost is high if the belt is frequently replaced, so there is an urgent need for a kind of fibre toughening nonmetallic sound barrier length trimming device for stable bearing and stable conveying of sound barrier. SUMMARY

[0003] The utility model provides a kind of fibre toughening nonmetallic sound barrier length trimming device for stable bearing and stable conveying of sound barrier.

[0004] To solve the above technical problems, the utility model includes rack, the rack is equipped with conveying belt for conveying sound barrier by first driving device, the rack is equipped with first cutting piece for cutting sound barrier on conveying belt by second driving device, the first cutting piece can be close to and away from sound barrier on conveying belt in front-back direction and left-right direction, and its structural characteristics are as follows: the conveying belt includes belt body, the belt body contacts sound barrier by a plurality of protrusions arranged on outer surface, and the rack is equipped with limiting mechanism for preventing sound barrier from deviating when first cutting piece cuts sound barrier on protrusion.

[0005] With the above structure, the top of the protrusion is above the top of the belt body. When the first cutting blade cuts to the bottom of the sound barrier, the bottom of the first cutting blade contacts the protrusion or is located in the interval between adjacent protrusions, preventing the first cutting blade from directly contacting the belt body and ensuring the overall structural stability of the belt body. The protrusion and the limiting mechanism ensure the stable bearing and stable conveying of the sound barrier by the conveying belt.

[0006] Further, the protrusion includes first and second bearing portions arranged on the outer surface of the belt body and opposite to each other. The extension direction of the first and second bearing portions is inclined to the conveying direction of the conveying belt. The interval between the first and second bearing portions gradually increases in the conveying direction of the conveying belt. The maximum interval between the first and second bearing portions is greater than the size of the sound barrier in the front-back direction. By arranging the first and second bearing portions, the protrusion is approximately V-shaped, ensuring reliable bearing of the sound barrier by the conveying belt.

[0007] Further, the limiting mechanism includes a base fixed to the rack. The base is slidably connected with a push rod capable of approaching and moving away from the conveying belt through a sliding member. The side of the push rod close to the conveying belt is provided with an abutting plate for abutting against the side surface of the sound barrier. The base is provided with a locking assembly capable of locking the position of the push rod. The limiting mechanism is provided with a plurality of members on the rack and is symmetrically arranged on the front and back sides of the rack or on the side of the rack with the maximum front-back interval from the first cutting blade. By adjusting the distance between the push rod and the conveying belt, the abutting plate on the push rod reaches the position close to the sound barrier on the conveying belt. After adjustment, the position of the push rod is locked by the locking assembly to lock the position of the abutting plate. When the limiting mechanism is arranged on the front and back sides of the rack, the abutting plates of the limiting mechanisms on the front and back sides of the rack can abut against the front and back sides of the sound barrier on the conveying belt, respectively. When the limiting mechanism is arranged on the side of the rack with the maximum front-back interval from the first cutting blade, the front-back movement direction of the first cutting blade when cutting the sound barrier is from front to back, i.e., the rear side of the rack has the maximum interval from the first cutting blade. The first cutting blade will give the sound barrier a backward thrust when cutting. The limiting mechanisms are arranged on the rear side of the rack. When the front-back movement direction of the first cutting blade when cutting the sound barrier is from back to front, i.e., the front side of the rack has the maximum interval from the first cutting blade. The first cutting blade will give the sound barrier a forward thrust when cutting. The limiting mechanisms are arranged on the front side of the rack.

[0008] Furthermore, the locking assembly includes a fixed seat fixed to the base. The top of the fixed seat has a downwardly recessed through groove for accommodating the push rod. The fixed seat is detachably connected to a clamping seat located above the fixed seat, which can press down on the push rod located in the through groove. By setting the locking assembly, when the position of the push rod needs to be adjusted, the clamping seat is first removed from the fixed seat and the push rod inside the fixed seat is moved. Then, the clamping seat is connected to the fixed seat to achieve clamping and pressing of the push rod by the fixed seat and the clamping seat.

[0009] Furthermore, the abutment plate is provided with several through-holes. By providing air holes, some of the dust generated when the first cutting blade cuts the sound barrier can be dispersed outward through the air holes, reducing the situation where dust accumulates on the conveyor belt due to the abutment plate blocking the dust; the air holes can also reduce the overall weight of the abutment plate, making it lightweight and easier for operators to operate the push rod and the abutment plate.

[0010] Furthermore, the frame includes a frame body and a crossbeam that can move back and forth on the frame body. The crossbeam is equipped with a third drive device whose output end can move left and right. The second drive device and the first cutting blade are located on the output end of the third drive device. By setting up the crossbeam and the third drive device, the back-and-forth movement of the crossbeam drives the third drive device, the second drive device, and the first cutting blade to move back and forth. Thus, the first cutting blade can move closer to and away from the sound barrier located on the conveyor belt in the back-and-forth direction. The left and right movement of the output end of the third drive device drives the second drive device and the first cutting blade to move left and right. Thus, the first cutting blade can move closer to and away from the sound barrier located on the conveyor belt in the left and right direction, adapting to different processing needs.

[0011] Furthermore, the crossbeam is equipped with a dust suction pipe, which has a dust inlet and a dust outlet. The dust inlet of the dust suction pipe is close to the first cutting blade, and the dust outlet is connected to an external dust collection device. By setting up the dust suction pipe, the external dust collection device absorbs the dust generated when the sound barrier is cut by the first cutting blade, thus collecting the dust in a directional manner and ensuring a clean working environment and the health of the workers.

[0012] Furthermore, two sets of the second drive device and the first cutting blade are spaced apart on the crossbeam, and the horizontal distance between the two sets of the second drive device and the first cutting blade can be adjusted. By setting two sets of the second drive device and the first cutting blade, the two ends of the sound barrier in the length direction can be cut simultaneously, saving processing time and improving work efficiency; the adjustable horizontal distance between the two sets of the second drive device and the first cutting blade can adapt to various sound barrier processing needs.

[0013] Furthermore, the crossbeam is equipped with a second cutting blade located between the two first cutting blades. The second cutting blade is driven to rotate by a fourth driving device mounted on the crossbeam. The first and second cutting blades can move closer to and further away from the protrusion in the vertical direction. By setting the second cutting blade, when the two sets of first cutting blades have cut and trimmed both ends of the sound barrier, and it is necessary to cut a longer sound barrier into two pieces, the second cutting blade can cut the sound barrier, reducing the cutting workload of the first cutting blades and saving operation time. By adjusting the vertical position of the first and second cutting blades, various sound barrier processing needs can be met.

[0014] In summary, this utility model has the advantages of being easy to use and having a reasonable structure. Attached Figure Description

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

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting mechanism;

[0018] Figure 4 This is a schematic diagram of the conveyor belt structure;

[0019] Figure 5 yes Figure 4 Enlarged view of a portion of area A in the middle;

[0020] In the diagram: 1. Frame; 11. Frame body; 12. Crossbeam; 2. Conveyor belt; 21. Belt body; 22. Protrusion; 221. First bearing part; 222. Second bearing part; 3. First cutting blade; 4. Limiting mechanism; 41. Base; 42. Push rod; 43. Abutment plate; 431. Air hole; 44. Locking assembly; 441. Fixed seat; 442. Tightening seat; 5. Dust suction pipe; 6. Second cutting blade. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention. For ease of understanding, Figure 1 The left side is the left side of this utility model. Figure 1 The right side is the right side of this utility model. Figure 1 The upper side is the upper side of this utility model. Figure 1 The lower side is the lower side of this utility model. Figure 2 The upper side is the front side of this utility model. Figure 2 The lower side is the rear side of this utility model.

[0022] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 The utility model includes a frame 1, which is equipped with a conveyor belt 2 driven by a first drive device for conveying a sound barrier. The conveyor belt 2 includes a belt body 21, which contacts the sound barrier through a plurality of protrusions 22 on its outer surface. The first drive device can be a roller conveyor, and the belt body 21 can be fitted onto a plurality of rollers of the roller conveyor, driving the belt body 21 through the rollers. The protrusions 22 include a first support portion 221 and a second support portion 222 disposed on the outer surface of the belt body 21 and arranged opposite to each other. The extending directions of the first support portion 221 and the second support portion 222 are inclined to the conveying direction of the conveyor belt 2. The distance between the first support portion 221 and the second support portion 222 gradually increases in the conveying direction of the conveyor belt 2, and the maximum distance between the first support portion 221 and the second support portion 222 is greater than the size of the sound barrier in the front-back direction. The conveyor belt 2 travels from right to left. The extension directions of the first support portion 221 and the second support portion 222 form an acute angle with the conveyor belt 2's travel direction. Of course, the conveyor belt 2 can also travel from left to right. By setting the first support portion 221 and the second support portion 222, the protrusion 22 is approximately V-shaped, ensuring reliable support of the sound barrier by the conveyor belt 2. When the protrusion 22 is damaged, the damaged protrusion 22 can be scraped off, and then a new protrusion 22 can be glued on.

[0023] Reference Figure 1 and Figure 2The frame 1 is equipped with a first cutting blade 3 driven by a second drive device to cut the sound barrier on the conveyor belt 2. The first cutting blade 3 can move closer to and further away from the sound barrier on the conveyor belt 2 in the front-back direction and the left-right direction. Specifically, the frame 1 includes a frame body 11 and a crossbeam 12 that can move back and forth on the frame body 11. The crossbeam 12 is equipped with a third drive device whose output end can move left and right. The second drive device and the first cutting blade 3 are located on the output end of the third drive device. The frame body 11 may be equipped with two tracks, and the crossbeam 12 is equipped with several rollers that can roll on the tracks. The crossbeam 12 moves back and forth on the frame body 11 through a drive mechanism such as a screw-nut mechanism or a gear and rack mechanism driven by a motor, which is mounted on the frame body 11. The third drive device can be a screw-nut mechanism driven by a motor, and the output end of the third drive device is the nut seat. The second drive device can be a motor located on the output end of the third drive device. The crossbeam 12 moves back and forth, driving the third drive device, the second drive device, and the first cutting blade 3 to move back and forth. Thus, the first cutting blade 3 can move closer to and further away from the sound barrier located on the conveyor belt 2 in the front-back direction. The output end of the third drive device moves left and right, driving the second drive device and the first cutting blade 3 to move left and right. Thus, the first cutting blade 3 can move closer to and further away from the sound barrier located on the conveyor belt 2 in the left and right direction, adapting to different processing needs.

[0024] Reference Figures 1 to 5The frame 1 is equipped with a limiting mechanism 4 to prevent the sound barrier from shifting when the first cutting blade 3 cuts the sound barrier located on the protrusion 22. The limiting mechanism 4 includes a base 41 fixed to the frame 1. The base 41 is slidably connected to a push rod 42 that can approach and move away from the conveyor belt 2 via a sliding member. The sliding member can be a hollow seat with a rubber sleeve inside. The push rod 42 passes through the rubber sleeve. One push rod 42 can have multiple sliding members to ensure the accuracy of the push rod 42's movement. The side of the push rod 42 closest to the conveyor belt 2 is provided with an abutment plate 43 for abutting against the side of the sound barrier. The base 41 is provided with a locking component 44 that can lock the position of the push rod 42. The limiting mechanism 4 has several components on the frame 1 and is symmetrically distributed on the front and rear sides of the frame 1, or on the side of the front and rear sides of the frame 1 with the largest front-to-back distance from the first cutting blade 3. One abutment plate 43 can be provided with multiple push rods 42. Adjust the distance between the push rod 42 and the conveyor belt 2 so that the abutment plate 43 on the push rod 42 reaches a position close to the sound barrier on the conveyor belt 2. After adjustment, lock the position of the push rod 42 by locking the locking assembly 44, thereby locking the position of the abutment plate 43. When the limiting mechanism 4 is provided on the front and rear sides of the frame 1, the abutment plates 43 of the limiting mechanism 4 located on the front and rear sides of the frame 1 can respectively abut against the front and rear sides of the sound barrier on the conveyor belt 2. When the limiting mechanism 4 is located on the side with the largest distance between the first cutting blade 3 and the front and rear sides of the frame 1, the first cutting blade 3 moves from front to back when cutting the sound barrier, meaning the distance between the rear side of the frame 1 and the first cutting blade 3 is the largest. The first cutting blade 3 will exert a backward thrust on the sound barrier during cutting. With several limiting mechanisms 4 located on the rear side of the frame 1, the abutment plate 43 can abut against the rear side of the sound barrier. Conversely, when the first cutting blade 3 moves from back to front when cutting the sound barrier, meaning the distance between the front side of the frame 1 and the first cutting blade 3 is the largest, the first cutting blade 3 will exert a forward thrust on the sound barrier during cutting. With several limiting mechanisms 4 located on the front side of the frame 1, the abutment plate 43 can abut against the front side of the sound barrier. In this embodiment, the first cutting blade 3 moves from front to back when cutting the sound barrier, several limiting mechanisms 4 are located on the rear side of the frame 1, and the abutment plate 43 can abut against the rear side of the sound barrier. Of course, the cutting position of the first cutting blade 3 should avoid the abutment plate 43, which can be achieved by adjusting the left and right positions of the first cutting blade 3 and the conveying position of the conveyor belt 2. When cutting, the bottom end of the first cutting blade 3 is flush with the top end of the protrusion 22, or the bottom end of the first cutting blade 3 is below the bottom end of the protrusion 22 and above the top end of the belt body 21.

[0025] Reference Figure 3The locking assembly 44 includes a fixed seat 441 fixed to the base 41. The top of the fixed seat 441 has a downwardly recessed through groove for accommodating the push rod 42. The fixed seat 441 is detachably connected to a clamping seat 442 located above the fixed seat 441 and capable of pressing down on the push rod 42 located in the through groove. To ensure stable contact between the clamping seat 442 and the push rod 42, the bottom of the clamping seat 442 may have an upwardly recessed groove. The through groove of the fixed seat 441 and the groove of the clamping seat 442 can clamp the push rod 42 by an interference fit. The clamping seat 442 can be detachably connected to the fixed seat 441 by screws. When the screws are tightened, the clamping seat 442 grips the push rod 42 on the fixed seat 441. The outer surface of the push rod 42 may have an anti-slip pattern to ensure stable contact with the fixed seat 441 and the clamping seat 442. When the position of push rod 42 needs to be adjusted, first remove the clamping seat 442 from the fixed seat 441 and move the push rod 42 inside the fixed seat 441. Then connect the clamping seat 442 to the fixed seat 441 to clamp and press the push rod 42 between the fixed seat 441 and the clamping seat 442. The abutment plate 43 is provided with several through-holes 431. By providing the air holes 431, some of the dust generated when the first cutting blade 3 cuts the sound barrier can be dispersed outward through the air holes 431, reducing the situation where dust accumulates on the conveyor belt 2 due to the abutment plate 43 blocking the dust. The air holes 431 can also reduce the overall weight of the abutment plate 43, making it lightweight and easier for operators to operate the push rod 42 and the abutment plate 43. The abutment plate 43 is fixed with a nut on the side that contacts the sound barrier. The push rod 42 can be provided with a threaded rod for screwing the nut. The push rod 42 and the abutment plate 43 can be detachably connected by a threaded connection.

[0026] Preferably, the crossbeam 12 is equipped with a dust suction pipe 5, which has a dust inlet and a dust outlet. The dust inlet of the dust suction pipe 5 is close to the first cutting blade 3, and the dust outlet is connected to an external dust collection device. The external dust collection device absorbs the dust generated when the sound barrier is cut by the first cutting blade 3 through the dust suction pipe 5, ensuring the cleanliness of the working environment and the health of the workers. Two sets of second drive devices and first cutting blades 3 are arranged at intervals on the crossbeam 12, and the horizontal distance between the two sets of second drive devices and first cutting blades 3 can be adjusted. The horizontal distance is the distance in the left and right direction. When a motor-driven screw-nut mechanism is used as the third drive device to drive the second drive device and the first cutting blade 3 to move left and right, two sets of third drive devices can be set up to drive two sets of second drive devices and the first cutting blade 3 respectively; alternatively, one set of screw-nut mechanism can be set up as the third drive device to drive two sets of second drive devices and the first cutting blade 3. The screw can have a positive thread part and a negative thread part, and the positive thread part and the negative thread part are respectively screwed to two nut seats. The two nut seats respectively support two sets of second drive devices and the first cutting blade 3. When the positive thread screw rotates, the two nut seats can move closer and further away from each other synchronously. By setting up two sets of second drive devices and the first cutting blade 3, the two ends of the sound barrier in the length direction can be cut synchronously, saving processing time and improving work efficiency; the horizontal distance between the two sets of second drive devices and the first cutting blade 3 can be adjusted to adapt to various sound barrier processing needs. The crossbeam 12 is provided with a second cutting blade 6 located between the two first cutting blades 3. The second cutting blade 6 is driven to rotate by a fourth drive device set on the crossbeam 12. The fourth drive device can be a motor. The first cutting blade 3 and the second cutting blade 6 can move closer to and further away from the protrusion 22 in the vertical direction. A fifth drive device with a vertically movable output end can be selected. The fifth drive device can be a vertically arranged screw and nut mechanism driven by a motor or an electric push rod. One fifth drive device is set on one output end of a third drive device. A set of second drive devices and the first cutting blade 3 are set on the output end of the fifth drive device to realize the vertical movement of the second drive device and the first cutting blade 3. The fourth drive device and the second cutting blade 6 are connected to the crossbeam 12 through a fifth drive device to realize the vertical movement of the fourth drive device and the second cutting blade 6. After the two sets of first cutting blades 3 have cut and trimmed the two ends of the sound barrier, when it is necessary to cut the long sound barrier into two pieces, the second cutting blade 6 can cut the sound barrier, reducing the cutting workload of the first cutting blade 3 and saving operation time. By adjusting the vertical position of the first cutting blade 3 and the second cutting blade 6, various sound barrier processing needs can be met.

[0027] In use, the first driving device and conveyor belt 2 stop conveying the sound barrier after it arrives. The first cutting blade 3 is driven to rotate by the second driving device. The position of the first cutting blade 3 in the left-right direction is adjusted according to processing requirements. Then, the crossbeam 12 moves back and forth, and the rotating first cutting blade 3 cuts the sound barrier to a preset length as required, thus adjusting the length of the sound barrier. By setting the belt body 21 and protrusions 22, with the top of the protrusions 22 located above the top of the belt body 21, when the first cutting blade 3 cuts to the bottom of the sound barrier, the bottom of the first cutting blade 3 contacts the protrusions 22 or is located in the gap between adjacent protrusions 22, preventing direct contact between the first cutting blade 3 and the belt body 21 and ensuring the overall structural stability of the belt body 21. By setting the limiting mechanism 4, displacement of the sound barrier is prevented when the first cutting blade 3 cuts the sound barrier. The protrusions 22 and the limiting mechanism 4 ensure the stable bearing and conveying of the sound barrier by the conveyor belt 2.

[0028] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims of this patent, they should all fall within the protection scope of this utility model.

Claims

1. A fiber-reinforced non-metallic sound barrier length trimming device, comprising a frame (1) provided with a conveying belt (2) driven by a first driving device for conveying the sound barrier, the frame (1) being provided with a first cutting blade (3) driven by a second driving device for cutting the sound barrier on the conveying belt (2), the first cutting blade (3) being capable of approaching and moving away from the sound barrier on the conveying belt (2) in the front-rear direction and the left-right direction, characterized in that: The conveying belt (2) comprises a belt body (21) which contacts the sound barrier through a plurality of protrusions (22) provided on the outer surface, and the rack (1) is provided with a limiting mechanism (4) for preventing the sound barrier from deviating when the first cutting piece (3) cuts the sound barrier located on the protrusion (22). ​ 2. The fiber-toughened non-metallic sound barrier length trimming device according to claim 1, characterized in that: The protrusion (22) comprises a first bearing part (221) and a second bearing part (222) provided on the outer surface of the belt body (21) and arranged oppositely in front and back, the extension direction of the first bearing part (221) and the second bearing part (222) is inclined to the conveying direction of the conveying belt (2), the distance between the first bearing part (221) and the second bearing part (222) gradually increases in the conveying direction of the conveying belt (2), and the maximum distance between the first bearing part (221) and the second bearing part (222) is greater than the size of the sound barrier in the front and back directions.

3. The fiber-toughened non-metallic sound barrier length trimming device according to claim 1, characterized in that: The limiting mechanism (4) comprises a base (41) fixed to the rack (1), the base (41) is slidably connected with a push rod (42) capable of approaching and moving away from the conveying belt (2) through a sliding piece, the side of the push rod (42) close to the conveying belt (2) is provided with an abutting plate (43) for abutting against the side of the sound barrier, the base (41) is provided with a locking assembly (44) capable of locking the position of the push rod (42), and the limiting mechanism (4) is provided with a plurality of pieces on the rack (1) and symmetrically arranged on the front and back sides of the rack (1) or on the side with the maximum distance from the first cutting piece (3) on the front and back sides of the rack (1).

4. The fiber-toughened non-metallic sound barrier length trimming device according to claim 3, characterized in that: The locking assembly (44) comprises a fixed seat (441) fixed to the base (41), the top of the fixed seat (441) is provided with a through slot recessed downward for accommodating the push rod (42), and the fixed seat (441) is detachably connected with a top pressing seat (442) located above the fixed seat (441) and capable of pressing the push rod (42) located in the through slot.

5. The fiber-toughened non-metallic sound barrier length trimming device according to claim 3, characterized in that: The abutting plate (43) is provided with a plurality of front and back through air holes (431).

6. The fiber-toughened non-metallic sound barrier length trimming device according to claim 1, characterized in that: The rack (1) comprises a rack body (11) and a cross beam (12) capable of moving forward and backward on the rack body (11), the cross beam (12) is provided with a third driving device capable of moving left and right at the output end, and the second driving device and the first cutting piece (3) are arranged on the output end of the third driving device.

7. The fiber-toughened non-metallic sound barrier length trimming device according to claim 6, characterized in that: The cross beam (12) is provided with a dust suction pipe (5) having a dust inlet and a dust outlet, the dust inlet of the dust suction pipe (5) is close to the first cutting piece (3), and the dust outlet is connected to an external dust suction equipment.

8. The fiber-toughened non-metallic sound barrier length trimming device according to claim 6, characterized in that: The second driving device and the first cutting piece (3) are arranged in two groups on the cross beam (12), and the horizontal distance between the two groups of second driving devices and first cutting pieces (3) can be adjusted.

9. The fiber-toughened non-metallic sound barrier length trimming device according to claim 8, characterized in that: The cross beam (12) is provided with a second cutting piece (6) located between the two first cutting pieces (3), the second cutting piece (6) is driven to rotate by a fourth driving device provided on the cross beam (12), and the first cutting piece (3) and the second cutting piece (6) can approach and move away from the protrusion (22) in the up and down direction.

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