A deformation-resistant automotive sound-absorbing cotton cutting device

Abstract

This utility model relates to the field of automotive sound-absorbing cotton cutting technology, and discloses a deformation-resistant automotive sound-absorbing cotton cutting device, including a base. Two conveyor belts, a first conveyor belt and a second conveyor belt, are symmetrically arranged between the inner walls of the two sides of the base for material transfer, with a gap between them. A frame is fixedly connected to the middle of the upper surface of the base, and a top plate is fixedly connected to the top of the frame. A linear motor module is bolted to the lower surface of the top plate. This utility model, by designing a V-shaped cutting blade that moves back and forth, can slowly cut the sound-absorbing cotton, avoiding the entire cutting blade squeezing and deforming the cut edge of the sound-absorbing cotton. Furthermore, the threaded rod and U-shaped frame can limit the movement of the sound-absorbing cotton on both sides during transport, preventing it from deviating during delivery and causing cutting deviations.

Description

Technical Field

[0001] This utility model relates to the field of automotive sound-absorbing cotton cutting technology, and more specifically to an automotive sound-absorbing cotton cutting device that can prevent deformation. Background Technology

[0002] With the automotive industry's increasing demands for NVH performance, sound-absorbing cotton, as a core material for noise reduction in vehicles, has its processing precision and molding quality directly affecting the sound insulation effect and assembly efficiency of the entire vehicle. Sound-absorbing cotton is usually made of polyurethane foam, fiber composite materials or new porous polymers, and has the characteristics of being lightweight, soft and highly elastic.

[0003] A search revealed Chinese patent CN211867957U, which discloses a cutting board for sound-absorbing cotton. The device can adjust the cutting height of the cutting board to cut sound-absorbing cotton of different specifications. However, when cutting the sound-absorbing cotton, the cutting blade moves parallel downwards to cut the cotton, which can squeeze the cotton and cause deformation at the cut edge, affecting the appearance. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a deformation-resistant automotive sound-absorbing cotton cutting device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a deformation-resistant automotive sound-absorbing cotton cutting device, comprising a base, a first conveyor belt and a second conveyor belt symmetrically arranged between the inner walls of the two sides of the base for material transfer, with a gap between the first conveyor belt and the second conveyor belt; a frame fixedly connected to the middle position of the upper surface of the base; a top plate fixedly connected to the top of the frame; a linear motor module bolted to the lower surface of the top plate; two symmetrical sliding rods bolted between the inner walls of the two sides of the frame; sliding blocks slidably connected to the two sliding rods; a connecting frame fixedly connected to one side of the moving part of the linear motor module and the sliding block; a knife holder bolted to the lower surface of the sliding block; a cutting blade for use with the bottom of the knife holder, the cutting blade being V-shaped, with sharpened edges on both sides and the bottom; and a lifting assembly for lifting the sound-absorbing cotton between the inner walls of the two sides of the base and between the first conveyor belt and the second conveyor belt.

[0006] As a further embodiment of this utility model, the lifting assembly includes a horizontal plate fixedly connected to the middle position of both sides of the base. An electric push rod is fixedly connected to the upper surface of the horizontal plate. A connecting frame is fixedly connected to the top end of the electric push rod. Two symmetrical fixing rods are bolted to both ends of the upper surface of the connecting frame. A top rod is rotatably connected between the two corresponding fixing rods on the same side.

[0007] As a further embodiment of this utility model, the two push rods are located below the cutting blade, and the two push rods are respectively located symmetrically on both sides of the cutting blade.

[0008] As a further embodiment of this utility model, a set of fixing blocks are fixedly connected to the upper surface of the base and located on both sides of the conveyor belt, and each set consists of three blocks at equal intervals. Guide rods are slidably connected through the two fixing blocks on both sides, and U-shaped frames are bolted to the ends of the two guide rods on the same side that are closest to the conveyor belt.

[0009] As a further embodiment of this utility model, threaded rods are threadedly connected through the two fixing blocks located in the middle position, and one end of the threaded rod is rotatably connected to one side of the U-shaped frame through a bearing.

[0010] As a further embodiment of this utility model, multiple rotating wheels with equal intervals are rotatably connected between the inner walls of both sides of the two U-shaped frames.

[0011] As a further embodiment of this utility model, a tripod for blocking the sound-absorbing cotton is fixedly connected to one end of the upper surface of each of the two U-shaped frames.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model has a V-shaped cutting blade that moves back and forth, which can slowly cut the sound-absorbing cotton, avoiding the entire cutting blade from squeezing and cutting the sound-absorbing cotton, thus preventing the sound-absorbing cotton from being squeezed and deformed at the cut position.

[0014] 2. This utility model has a lifting component that can slowly lift the area to be cut, which makes it easy for the cutting blade to slide and cut the sound-absorbing cotton multiple times, further preventing deformation of the cut.

[0015] 3. The present invention, through the provided threaded rod and U-shaped frame, can limit the two sides of the sound-absorbing cotton during the conveying process, so that the sound-absorbing cotton will not deviate during the conveying process, resulting in cutting deviation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is an enlarged structural schematic diagram of the cutting component of this utility model.

[0018] Figure 3 This is a partially enlarged structural diagram of the base of this utility model.

[0019] Figure 4 This is a partial cross-sectional view of the base of this utility model.

[0020] The attached diagram is labeled as follows: 1. Base; 2. Conveyor belt one; 3. Conveyor belt two; 4. Frame; 5. Top plate; 6. Linear motor module; 7. Slide rod; 8. Slide seat; 9. Knife holder; 10. Cutting knife; 11. Horizontal plate; 12. Electric push rod; 13. Connecting frame; 14. Fixing rod; 15. Top rod; 16. Fixing block; 17. Guide rod; 18. U-shaped frame; 19. Rotating wheel; 20. Threaded rod; 21. Tripod. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4This utility model provides a deformation-resistant automotive sound-absorbing cotton cutting device, including a base 1. Two conveyor belts 2 and 3 are symmetrically arranged between the inner walls of the two sides of the base 1 for material transfer, with a gap between them. A frame 4 is bolted to the middle of the upper surface of the base 1. A top plate 5 is bolted to the top of the frame 4. A linear motor module 6 is bolted to the lower surface of the top plate 5. Two symmetrical sliding rods 7 are bolted between the inner walls of the two sides of the frame 4. Sliding blocks 8 are slidably connected to the two sliding rods 7. One side of the actuator of the linear motor module 6 is bolted to the sliding block 8. A blade holder 9 is bolted to the lower surface of the connecting frame and slide 8. A cutting blade 10, which works in conjunction with the blade holder 9, is located at the bottom of the blade holder 9. The cutting blade 10 is V-shaped and has sharp edges on both sides and the bottom. A lifting assembly for lifting the sound-absorbing cotton is located between the inner walls of both sides of the base 1 and between conveyor belt 1 2 and conveyor belt 2 3. The lifting assembly includes a horizontal plate 11 bolted to the middle of both sides of the base 1. An electric push rod 12 is bolted to the upper surface of the horizontal plate 11. A connecting frame 13 is bolted to the top of the electric push rod 12. Two symmetrical fixing bolts are bolted to both ends of the upper surface of the connecting frame 13. Rod 14, with two fixed rods 14 on the same side rotatably connected to a top rod 15. The two top rods 15 are located below the cutting blade 10, and are symmetrically positioned on both sides of the cutting blade 10. First, the sound-absorbing cotton is placed on conveyor belt 2 for conveying. When cutting is required, conveyor belt 2 and conveyor belt 3 are stopped, and then the electric push rod 12 is activated to extend, thereby driving the connecting frame 13 and the top rods 15 on it to move upward. As the top rods 15 move upward, they will slowly lift the sound-absorbing cotton. At the same time as lifting, the linear motor module 6 is activated, thereby driving the slide 8 and the cutting blade 10 on it to move back and forth left and right. When the cutting blade 10 comes into contact with the sound-absorbing cotton, its V-shaped sides make inclined contact with the sound-absorbing cotton, thereby sliding and cutting the sound-absorbing cotton. When the cutting is completed, the conveyor belt 2 and the conveyor belt 3 are started to send out the cut sound-absorbing cotton and convey the previous sound-absorbing cotton. This process is repeated. By setting the cutting blade 10 to be V-shaped and moving it back and forth, the sound-absorbing cotton can be slowly cut open, avoiding the entire cutting blade from squeezing and cutting the sound-absorbing cotton, which would cause the sound-absorbing cotton to be squeezed and deformed at the cut position. The lifting component can slowly lift the position to be cut, which can facilitate the cutting blade 10 to slide and cut the sound-absorbing cotton multiple times, further avoiding deformation of the cut.

[0023] In this invention, a set of fixing blocks 16 are bolted to the upper surface of the base 1, located on both sides of the conveyor belt 2. Each set consists of three blocks at equal intervals. Guide rods 17 are slidably connected through the two fixing blocks 16 on both sides. U-shaped frames 18 are bolted to the ends of the two guide rods 17 near the conveyor belt 2 on the same side. Threaded rods 20 are threaded through the two fixing blocks 16 located in the middle. One end of the threaded rod 20 is rotatably connected to one side of the U-shaped frame 18 via a bearing. Equally spaced... Multiple rotating wheels 19 and one end of the upper surface of each U-shaped frame 18 are fixedly connected to a tripod 21 to block the sound-absorbing cotton. When it is necessary to limit the two sides of the sound-absorbing cotton, the two threaded rods 20 are rotated at the same time, which drives the two U-shaped frames 18 to move closer or further apart. When the rotating wheels 19 in the two U-shaped frames 18 come into contact with the two sides of the sound-absorbing cotton, the two sides of the sound-absorbing cotton can be limited. Through the threaded rods 20 and the U-shaped frames 18, the two sides of the sound-absorbing cotton can be limited when it is conveyed, so that the sound-absorbing cotton will not deviate during the conveying process, resulting in cutting deviation.

[0024] The use of this utility model involves the following steps:

[0025] S1: First, place the sound-absorbing cotton on conveyor belt 2 for conveying. When cutting is required, stop conveyor belt 2 and conveyor belt 3, then start the electric push rod 12 to extend, thereby driving the connecting frame 13 and the top rod 15 on it to move upward. While the top rod 15 moves upward, it will slowly lift the sound-absorbing cotton. At the same time as lifting, start the linear motor module 6 to drive the slide 8 and the cutting blade 10 on it to move back and forth. When the cutting blade 10 contacts the sound-absorbing cotton, its V-shaped sides will make inclined contact with the sound-absorbing cotton, thereby sliding and cutting the sound-absorbing cotton. When the cutting is completed, start conveyor belt 2 and conveyor belt 3 to send out the cut sound-absorbing cotton and convey the previous sound-absorbing cotton. Repeat this process.

[0026] S2: When it is necessary to limit the two sides of the sound-absorbing cotton, rotate the two threaded rods 20 at the same time, thereby driving the two U-shaped frames 18 to move closer or further away from each other. When the rotating wheels 19 inside the two U-shaped frames 18 come into contact with the two sides of the sound-absorbing cotton, the two sides of the sound-absorbing cotton can be limited.

[0027] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A deformation-resistant automotive sound-absorbing cotton cutting device, comprising a base (1), characterized in that: The base (1) has two conveyor belts (2 and 3) for symmetrical material transfer between its inner walls on both sides, with a gap between them. A frame (4) is fixedly connected to the middle of the upper surface of the base (1), and a top plate (5) is fixedly connected to the top of the frame (4). A linear motor module (6) is bolted to the lower surface of the top plate (5). Two symmetrical sliding rods (7) are bolted between the inner walls on both sides of the frame (4). A sliding block (8) is slidably connected to the upper part. A connecting frame is fixedly connected between one side of the mover of the linear motor module (6) and the sliding block (8). A knife holder (9) is bolted to the lower surface of the sliding block (8). A cutting knife (10) is provided at the bottom of the knife holder (9) for use with it. The cutting knife (10) is V-shaped. Both sides and the bottom of the cutting knife (10) are sharpened. A lifting component is provided between the inner walls of both sides of the base (1) and between the first conveyor belt (2) and the second conveyor belt (3) to lift the sound-absorbing cotton.

2. The car sound-absorbing cotton cutting device with deformation-resistant properties according to claim 1, characterized in that: The lifting assembly includes a horizontal plate (11) fixedly connected to the middle position of both sides of the base (1). An electric push rod (12) is fixedly connected to the upper surface of the horizontal plate (11). A connecting frame (13) is fixedly connected to the top of the electric push rod (12). Two symmetrical fixing rods (14) are bolted to both ends of the upper surface of the connecting frame (13). A top rod (15) is rotatably connected between the two corresponding fixing rods (14) on the same side.

3. The car sound-absorbing cotton cutting device with deformation-resistant properties according to claim 2, characterized in that: The two push rods (15) are located below the cutting blade (10), and the two push rods (15) are located symmetrically on both sides of the cutting blade (10).

4. The car sound-absorbing cotton cutting device with deformation-resistant properties according to claim 1, characterized in that: A set of fixing blocks (16) are fixedly connected to the upper surface of the base (1) and located on both sides of the conveyor belt (2). Each set consists of three blocks at equal intervals. Guide rods (17) are slidably connected through the two fixing blocks (16) on both sides. A U-shaped frame (18) is bolted to the end of the two guide rods (17) on the same side that is close to the conveyor belt (2).

5. The car sound-absorbing cotton cutting device with deformation-resistant properties according to claim 4, characterized in that: Two fixed blocks (16) located in the middle are threadedly connected to threaded rods (20), and one end of the threaded rods (20) is rotatably connected to one side of the U-shaped frame (18) via a bearing.

6. The car sound-absorbing cotton cutting device with deformation-resistant properties according to claim 4, characterized in that: Multiple rotating wheels (19) with equal intervals are rotatably connected between the inner walls of the two U-shaped frames (18).

7. The car sound-absorbing cotton cutting device with deformation-resistant properties according to claim 5, characterized in that: One end of the upper surface of each of the two U-shaped frames (18) is fixedly connected to a tripod (21) to block the sound-absorbing cotton.

Images