Two-component sound-absorbing cotton cutting device

By using a conveying and cutting device in conjunction with an auxiliary device, the two-component sound-absorbing cotton is transported, cut, and compacted, solving the problem of uneven cut edges during the cutting process and achieving smooth cut edges, thus improving the practicality of the device and the aesthetics of the product.

CN224425670UActive Publication Date: 2026-06-30JIANGSU SENYUAN AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SENYUAN AUTO PARTS CO LTD
Filing Date
2025-07-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, during the cutting process of two-component sound-absorbing cotton, uneven cuts are easily observed at the upper and lower adhesive surfaces, affecting the product's aesthetics.

Method used

The two-component sound-absorbing cotton is transported by a conveying device, cut by a cutting device, and the two sides of the cutting area are compacted and stretched by an auxiliary device to ensure that the upper and lower layers of the two-component sound-absorbing cotton are tightly attached to each other in the cutting area, and to ensure that the cutting edges are flat.

Benefits of technology

It improves the practicality of the cutting device, ensures smooth cutting edges, and enhances the aesthetics and quality of the product.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of sound-absorbing cotton cutting, and in particular to a two-component sound-absorbing cotton cutting device. The device transports the two-component sound-absorbing cotton via a conveying device, cuts the cotton via a cutting device, and uses an auxiliary device to compact and stretch the sides of the cutting area, ensuring tight adhesion between the upper and lower layers of the cotton and resulting in smooth cutting edges, thus improving the device's practicality. The device includes a conveying device, a cutting device, and an auxiliary device. The cutting device is mounted on the conveying device, and the auxiliary device is also mounted on the conveying device.
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Description

Technical Field

[0001] This utility model relates to the technical field of sound-absorbing cotton cutting, and in particular to a two-component sound-absorbing cotton cutting device. Background Technology

[0002] Two-component sound-absorbing cotton is a sound-absorbing material composed of two different materials. Due to its unique structure and performance advantages, it is widely used in many fields such as automobiles, home appliances, and construction. Two-component sound-absorbing cotton is usually composed of polyester fiber and polypropylene fiber, and some products will add hot melt adhesive as a binder. This combination retains the hardness and stability of polyester fiber and combines the bulkiness and sound absorption characteristics of polypropylene fiber.

[0003] The prior art Chinese utility model patent with application number CN202220440704.0 relates to a sound-absorbing cotton cutting device, which includes a cutting machine, a positioning device, a long block, an anti-slip pad, a square hole, a lifting frame, a clamping plate and a round plate, etc., which can fix the sound-absorbing cotton.

[0004] However, in actual use, the two-component sound-absorbing cotton has different materials on the top and bottom. During the cutting process, for the fluffy two-component sound-absorbing cotton, the cutting line is prone to unevenness at the upper and lower bonding surfaces, which affects the appearance of the product. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a two-component sound-absorbing cotton cutting device that transports the two-component sound-absorbing cotton through a conveying device, cuts the two-component sound-absorbing cotton through a cutting device, and compacts and stretches both sides of the cutting area through an auxiliary device, so that the upper and lower layers of the two-component sound-absorbing cotton are tightly attached to each other in the cutting area, making the cutting edge flat and improving the practicality of the device.

[0006] This utility model discloses a two-component sound-absorbing cotton cutting device, comprising a conveying device, a cutting device, and an auxiliary device. The cutting device is mounted on the conveying device, and the auxiliary device is also mounted on the conveying device. The two-component sound-absorbing cotton is transported by the conveying device, the two-component sound-absorbing cotton is cut by the cutting device, and the two sides of the cutting area are compacted and stretched by the auxiliary device, so that the upper and lower layers of the two-component sound-absorbing cotton are tightly attached in the cutting area, making the cutting edge flat and improving the practicality of the device.

[0007] Preferably, the conveying device includes a frame, conveyor rollers, conveyor belts, a dual-output reducer, and a drive motor. Multiple sets of conveyor rollers are installed on the left and right sides of the upper end face of the frame, and the left and right sets of conveyor belts are respectively fitted onto the multiple sets of conveyor rollers on the left and right sides. A dual-output reducer is installed in the middle of the front side of the frame, and a drive motor is installed on the dual-output reducer. The two output ends of the dual-output reducer are respectively connected to the two sets of conveyor rollers closest to each other on the left and right sets of conveyor belts. When the drive motor is turned on, power is transmitted to the two sets of conveyor rollers to drive the conveyor belts on both sides to rotate, thereby completing the transportation of the two-component sound-absorbing cotton. A cutting space is left between the two sets of conveyor belts. The dual-output reducer synchronizes the transportation speed of the two sets of conveyor belts, reducing the stretching or lateral compression of the sound-absorbing cotton cutting area and improving the practicality of the device.

[0008] Preferably, the cutting device includes a knife groove, a support platform, a gantry, an electric cylinder, a knife holder, and a cutting blade. A support platform is provided between the two sets of conveyor belts, and a knife groove is provided on the support platform. A gantry is installed in the middle of the upper end face of the frame, and an electric cylinder is installed in the middle of the upper end face of the gantry. The movement of the electric cylinder extends through the upper end face of the gantry to the lower part inside the gantry. A knife holder is installed on the moving end of the electric cylinder, and a cutting blade is installed on the lower end face of the knife holder. By controlling the extension of the electric cylinder, the knife holder and the cutting blade are driven to fall and cooperate with the knife groove to complete the cutting operation of the two-component sound-absorbing cotton. The support platform provides auxiliary support for the cutting area, reducing the insufficient flatness on both sides of the cutting area caused by the weight of the two-component sound-absorbing cotton itself, and improving the practicality of the device.

[0009] Preferably, it also includes limiting light rods. A set of limiting light rods is installed on the front and rear of the upper end of the blade holder, and both sets of limiting light rods extend through the gantry to the upper side of the gantry. The lifting and lowering process of the blade holder and the cutting blade is limited by the two sets of limiting light rods, which reduces the shaking amplitude of the blade holder itself during the cutting process and improves the stability and practicality of the device.

[0010] Preferably, the device also includes a blade groove support, a collection trough, and discharge ports. A collection trough is provided on the upper surface of the support platform, and a blade groove support is installed in the middle of the collection trough. The blade groove is located on the upper surface of the blade groove support. Multiple sets of discharge ports are evenly provided at the bottom of the collection trough. The collection trough collects the debris generated during the cutting process, which falls out through the multiple sets of discharge ports, reducing the impact of debris accumulation on the support platform on the flatness of the cut part and improving the practicality of the device.

[0011] Preferably, the device also includes auxiliary rollers and geared motors. Two sets of auxiliary rollers are installed in the middle of the frame, located on the left and right sides of the support platform, respectively. A set of geared motors is installed on the left and right sides of the rear end face of the frame, and the output ends of the two sets of geared motors are connected to the two sets of auxiliary rollers, respectively. During the process of one end of the two-component sound-absorbing cotton being conveyed to the support platform by a conveyor belt, the auxiliary rollers are activated to assist in conveying one end of the sound-absorbing cotton, reducing the possibility of the sound-absorbing cotton end sagging and falling off. The other set of auxiliary rollers assists in conveying the sound-absorbing cotton after it passes the upper side of the support platform, assisting in conveying the end of the sound-absorbing cotton to the other set of conveyor belts, reducing the possibility of the sound-absorbing cotton being squeezed by itself due to resistance on the support platform, thus improving the practicality of the device.

[0012] Preferably, the auxiliary device includes a support shaft, a rotating arm, a spring, a spreading roller, and a servo motor. A set of support shafts is respectively installed on the left and right end faces of the cutter holder. Two sets of rotating arms are respectively mounted on the support shafts on the left and right sides. A spring is connected to the upper end face of the rotating arm, and the other end of the spring is connected to the cutter holder via a bracket. A spreading roller is installed on the lower part of the rotating arm, and a servo motor is installed on the side of the rotating arm. The output end of the servo motor is connected to the spreading roller. The spring provides downward pressure to the rotating arm, allowing the spreading roller to maintain pressure on the surface of the sound-absorbing cotton, thereby assisting in compacting the cutting part. By activating the servo motor, power is transmitted to the spreading roller, causing the two sets of spreading rollers to rotate in opposite directions, pushing the left and right parts of the sound-absorbing cotton to be cut to the left and right sides respectively, reducing the compression of the sound-absorbing cotton itself. In conjunction with controlling two sets of reduction motors to drive two sets of auxiliary rollers to rotate, the lower part of the sound-absorbing cotton is pushed to both sides, thus fully unfolding the sound-absorbing cotton to be cut, improving the cutting effect and practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the two-component sound-absorbing cotton is transported by the conveying device, the two-component sound-absorbing cotton is cut by the cutting device, and the two sides of the cutting area are compacted and stretched by the auxiliary device, so that the upper and lower layers of the two-component sound-absorbing cotton are tightly attached to each other in the cutting area, and the cutting edge is flat, which improves the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second cross-sectional structure of this utility model;

[0017] Figure 4 This is a partially enlarged structural schematic diagram of the present invention;

[0018] The following components are labeled in the attached diagram: 1. Frame; 2. Conveyor roller; 3. Conveyor belt; 4. Dual-output reducer; 5. Drive motor; 6. Knife groove; 7. Support platform; 8. Gantry; 9. Electric cylinder; 10. Knife holder; 11. Cutting blade; 12. Limiting rod; 13. Knife groove support seat; 14. Collection trough; 15. Discharge port; 16. Auxiliary roller; 17. Gear motor; 18. Support shaft; 19. Rotating arm; 20. Spring; 21. Stretching roller; 22. Servo motor. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0020] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the cutting device is installed on the conveying device, and the auxiliary device is installed on the conveying device;

[0021] First, the drive motor 5 is turned on to transmit power to the two sets of conveyor rollers 2, which drive the conveyor belts 3 on both sides to rotate, thereby completing the transportation of the two-component sound-absorbing cotton. Then, as one end of the two-component sound-absorbing cotton is transported from one set of conveyor belts 3 to the support platform 7, the auxiliary roller 16 is turned on to assist in the transportation of one end of the sound-absorbing cotton, reducing the possibility of the sound-absorbing cotton end sagging and falling off. The other set of auxiliary rollers 16 assists in the transportation of the sound-absorbing cotton after it passes the upper side of the support platform 7, and assists in the transportation of the end of the sound-absorbing cotton to the other set of conveyor belts 3. Then, the spring 20 provides downward pressure to the rotating arm 19, so that the stretching roller 21 can continuously... Maintaining pressure on the surface of the sound-absorbing cotton helps to compact the cut portion. By turning on the servo motor 22, power is transmitted to the stretching roller 21, which drives the two sets of stretching rollers 21 to rotate in opposite directions. This pushes the left and right parts of the sound-absorbing cotton to be cut to the left and right sides respectively, reducing the compression of the sound-absorbing cotton itself. In conjunction with controlling the two sets of reduction motors 17 to drive the two sets of auxiliary rollers 16 to rotate, the lower part of the sound-absorbing cotton is pushed to the sides, so that the part of the sound-absorbing cotton to be cut is fully unfolded. Then, the electric cylinder 9 is controlled to extend, driving the knife holder 10 and the cutting blade 11 to fall and cooperate with the knife groove 6 to complete the cutting operation of the two-component sound-absorbing cotton.

[0022] The conveying device includes a frame 1, conveyor rollers 2, conveyor belts 3, a dual-output reducer 4, and a drive motor 5. Multiple sets of conveyor rollers 2 are installed on the left and right sides of the upper end face of the frame 1, and the two sets of conveyor belts 3 are respectively fitted onto the multiple sets of conveyor rollers 2 on the left and right sides. A dual-output reducer 4 is installed in the middle of the front side of the frame 1, and a drive motor 5 is installed on the dual-output reducer 4. The two output ends of the dual-output reducer 4 are respectively connected to the two sets of conveyor rollers 2 that are closest to each other in the two sets of conveyor belts 3.

[0023] The cutting device includes a blade groove 6, a support platform 7, a gantry 8, an electric cylinder 9, a blade holder 10, and a cutting blade 11. The support platform 7 is provided in the area between the two sets of conveyor belts 3. The blade groove 6 is provided on the support platform 7. The gantry 8 is installed in the middle of the upper end face of the frame 1. The electric cylinder 9 is installed in the middle of the upper end face of the gantry 8. The movement of the electric cylinder 9 extends through the upper end face of the gantry 8 to the lower part of the gantry 8. The blade holder 10 is installed on the moving end of the electric cylinder 9. The cutting blade 11 is installed on the lower end face of the blade holder 10.

[0024] It also includes a limiting light rod 12. A set of limiting light rods 12 are installed on the front and rear of the upper end of the tool holder 10, and both sets of limiting light rods 12 extend through the gantry 8 to the upper side of the gantry 8.

[0025] It also includes a knife groove support 13, a material collection trough 14 and a discharge port 15. A material collection trough 14 is provided on the upper surface of the support platform 7. A knife groove support 13 is installed in the middle of the material collection trough 14. A knife groove 6 is provided on the upper surface of the knife groove support 13. Multiple sets of discharge ports 15 are evenly provided at the bottom of the material collection trough 14.

[0026] It also includes auxiliary rollers 16 and geared motors 17. Two sets of auxiliary rollers 16 are installed in the middle of the frame 1. The two sets of auxiliary rollers 16 are located on the left and right sides of the support platform 7, respectively. A set of geared motors 17 is installed on the left and right sides of the rear end face of the frame 1, respectively. The output ends of the two sets of geared motors 17 are connected to the two sets of auxiliary rollers 16, respectively.

[0027] The auxiliary device includes a support shaft 18, a rotating arm 19, a spring 20, a stretching roller 21, and a servo motor 22. A set of support shafts 18 is respectively installed on the left and right end faces of the knife holder 10. Two sets of rotating arms 19 are respectively mounted on the support shafts 18 on the left and right sides. A spring 20 is connected to the upper end face of the rotating arm 19, and the other end of the spring 20 is connected to the knife holder 10 via a bracket. A stretching roller 21 is installed on the lower part of the rotating arm 19, and a servo motor 22 is installed on the side of the rotating arm 19. The output end of the servo motor 22 is connected to the stretching roller 21. The two-component sound-absorbing cotton is transported via a conveying device, and the two-component sound-absorbing cotton is cut via a cutting device. The auxiliary device compacts and stretches both sides of the cutting area, ensuring that the upper and lower layers of the two-component sound-absorbing cotton are tightly adhered, resulting in a smooth cutting edge and improving the practicality of the device.

[0028] like Figures 1 to 4 As shown, this utility model discloses a two-component sound-absorbing cotton cutting device. During operation, the drive motor 5 is first activated to transmit power to two sets of conveyor rollers 2, driving the conveyor belts 3 on both sides to rotate, thus completing the transport of the two-component sound-absorbing cotton. Then, as one end of the two-component sound-absorbing cotton is transported by one set of conveyor belts 3 to the support platform 7, auxiliary rollers 16 are activated to assist in the transport of one end of the sound-absorbing cotton, reducing the possibility of the sound-absorbing cotton end sagging and falling off. Another set of auxiliary rollers 16 assists in the transport of the sound-absorbing cotton after it passes above the support platform 7, assisting in the transport of the sound-absorbing cotton end to another set of conveyor belts 3. Then, springs 20 provide downward pressure to the rotating arm 19. The pressure of the roller 21 is maintained on the surface of the sound-absorbing cotton, thus assisting in compacting the cut part. The servo motor 22 is turned on to transmit power to the roller 21, which drives the two rollers 21 to rotate in opposite directions. This pushes the left and right parts of the sound-absorbing cotton to be cut to the left and right sides respectively, reducing the compression of the sound-absorbing cotton itself. In conjunction with the control of the two sets of reduction motors 17, the two sets of auxiliary rollers 16 are rotated to push the lower part of the sound-absorbing cotton to the sides, so that the part of the sound-absorbing cotton to be cut is fully unfolded. Then, the electric cylinder 9 is controlled to extend, which drives the knife holder 10 and the cutting blade 11 to fall and cooperate with the knife groove 6 to complete the cutting operation of the two-component sound-absorbing cotton.

[0029] The electric cylinder 9, servo motor 22, dual-output reducer 4, drive motor 5, and geared motor 17 of the dual-component sound-absorbing cotton cutting device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A two-component sound-absorbing cotton cutting device; characterized in that, It includes a conveying device, a cutting device, and an auxiliary device. The cutting device is installed on the conveying device, and the auxiliary device is installed on the conveying device.

2. The two-component sound-absorbing cotton cutting device as described in claim 1, characterized in that, The conveying device includes a frame (1), conveyor rollers (2), conveyor belts (3), a dual-output reducer (4), and a drive motor (5). Multiple sets of conveyor rollers (2) are installed on the upper surface of the frame (1) on the left and right sides respectively. The two sets of conveyor belts (3) are respectively mounted on the multiple sets of conveyor rollers (2) on the left and right sides. A dual-output reducer (4) is installed in the middle of the front side of the frame (1). A drive motor (5) is installed on the dual-output reducer (4). The two output ends of the dual-output reducer (4) are respectively connected to the two sets of conveyor rollers (2) that are closest to each other in the two sets of conveyor belts (3) on the left and right sides.

3. The two-component sound-absorbing cotton cutting device as described in claim 2, characterized in that, The cutting device includes a knife groove (6), a support platform (7), a gantry (8), an electric cylinder (9), a knife holder (10), and a cutting blade (11). A support platform (7) is provided between the two sets of conveyor belts (3). A knife groove (6) is provided on the support platform (7). A gantry (8) is installed in the middle of the upper end face of the frame (1). An electric cylinder (9) is installed in the middle of the upper end face of the gantry (8). The movement of the electric cylinder (9) extends through the upper end face of the gantry (8) to the lower part of the gantry (8). A knife holder (10) is installed on the moving end of the electric cylinder (9). A cutting blade (11) is installed on the lower end face of the knife holder (10).

4. The two-component sound-absorbing cotton cutting device as described in claim 3, characterized in that, It also includes a limiting light rod (12). A set of limiting light rods (12) is installed on the front and rear of the upper end of the tool holder (10). Both sets of limiting light rods (12) extend through the gantry (8) to the upper side of the gantry (8).

5. The two-component sound-absorbing cotton cutting device as described in claim 4, characterized in that, It also includes a knife groove support (13), a material collection trough (14) and a discharge port (15). The material collection trough (14) is provided on the upper surface of the support platform (7). The knife groove support (13) is installed in the middle of the material collection trough (14). The knife groove (6) is provided on the upper surface of the knife groove support (13). Multiple sets of discharge ports (15) are evenly provided at the bottom of the material collection trough (14).

6. The two-component sound-absorbing cotton cutting device as described in claim 5, characterized in that, It also includes auxiliary rollers (16) and geared motors (17). Two sets of auxiliary rollers (16) are installed in the middle of the frame (1). The two sets of auxiliary rollers (16) are located on the left and right sides of the support platform (7). A set of geared motors (17) is installed on the left and right sides of the rear end face of the frame (1). The output ends of the two sets of geared motors (17) are connected to the two sets of auxiliary rollers (16) respectively.

7. The two-component sound-absorbing cotton cutting device as described in claim 6, characterized in that, The auxiliary device includes a support shaft (18), a rotating arm (19), a spring (20), a stretching roller (21), and a servo motor (22). A set of support shafts (18) is provided on the front and back of the left and right ends of the tool holder (10). The left and right sets of rotating arms (19) are respectively mounted on the support shafts (18) on the left and right sides. A spring (20) is connected to the upper end of the rotating arm (19). The other end of the spring (20) is connected to the tool holder (10) through a bracket. A stretching roller (21) is installed on the lower part of the rotating arm (19). A servo motor (22) is installed on the side of the rotating arm (19). The output end of the servo motor (22) is connected to the stretching roller (21).