Automobile roof sound-absorbing cotton production equipment

By designing a sound-absorbing cotton production equipment for automobile ceilings including an operating table, a connecting frame, a discharge mechanism, a pressing mechanism and a cutting mechanism, the problems of low cutting accuracy, low material utilization and inconvenient storage in traditional equipment are solved, and high-precision cutting and efficient material utilization are achieved.

CN119658749APending Publication Date: 2025-03-21CHANGZHOU ZHENCHANG AUTO PARTS CO LTD
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Patent Information

Application Number
CN202411748416.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

Traditional sound-absorbing cotton production equipment has problems such as low cutting accuracy, low material utilization rate and inconvenient sound-absorbing cotton classification and storage after cutting.

Method used

A sound-absorbing cotton production equipment for automobile ceiling is designed, including an operating table, a connecting frame, a discharge mechanism, a pressing mechanism and a cutting mechanism. The sound-absorbing cotton is transmitted through the drive mechanism, the cutting mechanism is cut, the cutting machine is cut, and the precise cutting and automatic storage is achieved using electric push rods and stepper motors.

Benefits of technology

It improves the cutting accuracy of sound-absorbing cotton, improves the material utilization rate, facilitates the classification and storage of sound-absorbing cotton, and saves materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses automobile roof sound-absorbing cotton production equipment, and relates to the technical field of sound-absorbing cotton. Comprising a connecting frame, the connecting frame is arranged above a table top, and sliding grooves are symmetrically formed in the top face of the connecting frame; and the discharging mechanism comprises a moving frame, the moving frame is rotationally connected with an overturning plate, and the outer wall of the moving frame is fixedly connected with a stepping motor. During cutting, an electric push rod is started to press a pressing plate on the sound-absorbing cotton, position deviation of the sound-absorbing cotton during cutting is prevented, cutting precision is improved, after cutting of the sound-absorbing cotton is completed, an air cylinder is started to push a moving frame to the position over a front bin of a storage bin, then a stepping motor is started to drive a turnover plate to turn over, and the sound-absorbing cotton is cut. According to the sound-absorbing cotton cutting device, the cut sound-absorbing cotton falls into a front bin of a storage box to be stored, then a moving frame is reset, an electric push rod is closed to enable a pressing plate to be separated from the residual sound-absorbing cotton, then a stepping motor is started to enable the residual sound-absorbing cotton to fall into a rear bin of the storage box to be stored, and the residual sound-absorbing cotton can be recycled conveniently.
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Description

Technical Field

[0001] The invention belongs to the technical field of sound-absorbing cotton, and in particular relates to a device for producing sound-absorbing cotton for automobile ceilings. Background Art

[0002] Sound-absorbing cotton is a man-made inorganic fiber. It uses natural minerals such as quartz sand, limestone, dolomite, etc. as the main raw materials, and is melted into glass with some chemical raw materials such as soda ash and borax. In the molten state, it is blown into flocculent fine fibers with the help of external force. The fibers are three-dimensionally crossed and entangled with each other, showing many small gaps. Sound-absorbing cotton is a porous sound-absorbing material. When sound passes through the hole, it is reflected multiple times in the material, and the sound energy is attenuated to achieve the function of sound absorption.

[0003] As the awareness of noise pollution protection continues to increase, sound-absorbing cotton is gradually used in the roof, side doors and other places of the car to reduce noise and improve driving comfort. However, traditional sound-absorbing cotton production equipment still has problems such as low cutting accuracy, low material utilization rate and inconvenient classification and storage of cut sound-absorbing cotton, which is not conducive to use.

[0004] For this reason, a novel automobile ceiling sound-absorbing cotton production equipment is now proposed. Summary of the invention

[0005] The purpose of the invention is to provide a car ceiling sound-absorbing cotton production equipment to solve the technical problems.

[0006] The present invention is realized by the following technical scheme: a vehicle ceiling sound-absorbing cotton production equipment, comprising: The operating table comprises a tabletop, legs arranged at the bottom of the tabletop, and a front bracket arranged at the front side wall of the legs, wherein a rectangular opening is formed at the right end of the tabletop; A connecting frame, the connecting frame is arranged above the desktop, and a sliding groove is symmetrically provided on the top surface of the connecting frame; The unloading mechanism comprises a moving frame, a flip plate is rotatably connected to the moving frame, a stepping motor is fixedly connected to the outer wall of the moving frame, a sliding block is symmetrically connected to the bottom surface of the moving frame, and the outer wall of the sliding block is slidably connected to the inner wall of the sliding groove; The clamping mechanism comprises a stand symmetrically connected to the top surface of the flip plate, the top surface of the stand is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a pressing plate, and the pressing plate is located on the inner side of the stand.

[0007] Preferably, a storage box is provided on the front bracket, and the storage box is located below the unloading mechanism. A partition is fixedly connected to the inner wall of the storage box, and the partition divides the storage box into a front compartment and a rear compartment.

[0008] Preferably, the rear side wall of the desktop is fixedly connected to an extension plate, the top surface of the extension plate is fixedly connected to a control console, cylinders are symmetrically arranged on the control console, and the output end of each cylinder is connected to the rear side wall of the movable frame.

[0009] Preferably, the extension plate is provided with a cutting mechanism, and the cutting mechanism comprises a transverse moving plate, the bottom surface of the transverse moving plate is fixedly connected to the top outer wall of the extension plate, the outer wall of the transverse moving plate is fixedly connected to a servo motor 1, a limiting groove 1 is provided on the servo motor 1, a moving block 1 is slidably connected to the inner wall of the limiting groove 1, a screw rod 1 is fixedly connected to the output end of the servo motor 1, the outer wall of the screw rod 1 is rotatably connected to the inner wall of the transverse moving plate, the inner wall of the moving block 1 is threadedly connected to the outer wall of the screw rod 1, and the top of the moving block 1 is fixedly connected to a moving frame; The movable frame is provided with a limiting groove two, the inner wall of the limiting groove two is slidably connected with a movable block two, the outer wall of the movable frame is fixedly connected with a servo motor two, the output end of the servo motor two is fixedly connected with a screw rod two, the outer wall of the screw rod two is rotatably connected with the inner wall of the movable frame, the outer wall of the screw rod two is threadedly connected with the movable block two, the inner wall of the movable block two is threadedly connected with the outer wall of the screw rod two, and the bottom surface of the movable block two is fixedly connected with a cutting machine.

[0010] Preferably, a reeling mechanism is fixedly connected to the top of the operating table, and the reeling mechanism is used to wind up the sound-absorbing cotton. A pre-tightening mechanism is fixedly connected to the top of the operating table, and the pre-tightening mechanism is located on the right side of the reeling mechanism.

[0011] Preferably, the pre-tensioning mechanism includes a fixed seat, a fixed block is symmetrically connected to the fixed seat, a fixed rod is fixedly connected between the two fixed blocks, the top surface of the fixed seat is symmetrically connected to a vertical rod, the outer walls of the two vertical rods are slidably connected to movable blocks, a connecting rod is fixedly connected between the two movable blocks, the bottom surfaces of the two movable blocks are fixedly connected to springs, and the lower end of each spring is fixedly connected to the top surface of the fixed seat.

[0012] Preferably, a cutting mechanism is fixedly connected to the top of the operating table, and the cutting mechanism is located on the left side of the connecting frame. The cutting mechanism includes a fixed frame, a hydraulic cylinder is fixedly connected to the top of the fixed frame, an output end of the hydraulic cylinder is fixedly connected to a mounting plate, a buffer plate is symmetrically connected to the bottom surface of the mounting plate, a cutting knife is fixedly connected to the bottom surface of the mounting plate, and the cutting knife is located between the two buffer plates.

[0013] Preferably, a driving mechanism is provided on the operating table.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention provides a car ceiling sound-absorbing cotton production equipment, which uses a driving mechanism to convey the sound-absorbing cotton to the top of a discharging mechanism, then starts the cutting mechanism to cut the sound-absorbing cotton, and uses a cutting machine to cut the sound-absorbing cotton. During cutting, the electric push rod is started to press a pressing plate on the sound-absorbing cotton to prevent the sound-absorbing cotton from being offset when being cut, thereby improving the cutting accuracy. After the sound-absorbing cotton is cut, the cylinder is started to push the moving frame to the top of the front bin of the storage bin, and then the stepper motor is started to drive the flip plate to flip, so that the cut sound-absorbing cotton falls into the front bin of the storage box for storage, and then the moving frame is driven to reset by the electric push rod, and the electric push rod is closed to separate the pressing plate from the remaining sound-absorbing cotton, and the stepper motor is started again to drive the flip plate to flip, so that the remaining sound-absorbing cotton can fall into the rear bin of the storage box for storage, which is convenient for recycling the remaining sound-absorbing cotton, saves sound-absorbing cotton materials, and has a high material utilization rate.

[0015] 2. The present invention provides a car ceiling sound-absorbing cotton production equipment. When the sound-absorbing cotton is transported to the top of the unloading mechanism, the mounting plate is pushed downward by starting the hydraulic cylinder, and the sound-absorbing cotton material is cut by the cutting knife under the mounting plate. Before the cutting knife cuts the sound-absorbing cotton, the buffer plates on both sides of the cutting knife are first pressed against the upper surface of the sound-absorbing cotton to avoid wrinkles on the sound-absorbing cotton during cutting. At the same time, the buffer plate can reduce stress buffering before the cutting knife cuts, reduce the loss of the cutting knife, and extend the service life of the cutting knife.

[0016] 3. The present invention provides a car ceiling sound-absorbing cotton production equipment, which drives moving block 1 and moving block 2 to move left and right and front and back by starting servo motor 1 and servo motor 2, thereby facilitating the adjustment of the cutting position of the cutting machine and improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the support mechanism of the present invention; Figure 3 It is a front view of the present invention; Figure 4 It is a structural schematic diagram of the control console of the present invention; Figure 5 It is a structural schematic diagram of the unloading mechanism of the present invention; Figure 6 It is a structural schematic diagram of the pre-tightening mechanism of the present invention; Figure 7 It is a schematic structural diagram of the cutting mechanism of the present invention; Figure 8 It is a structural schematic diagram of the cutting mechanism of the present invention.

[0018] In the figure: 1, operating table; 101, desktop; 102, rectangular opening; 103, supporting leg; 104, front bracket; 2, connecting frame; 201, sliding groove; 3, unloading mechanism; 301, moving frame; 302, turning plate; 303, stepping motor; 304, sliding block; 4, extension plate; 5, control console; 6, cylinder; 7, cutting mechanism; 701, horizontal moving plate; 702, servo motor 1; 703, screw rod 1; 704, moving block 1; 705, moving frame; 706, limiting groove 2; 707, screw rod 2; 708, servo motor 2; 709, moving block 2 ;710, cutting machine;711, limit slot 1;8, clamping mechanism;801, stand;802, electric push rod;803, pressure plate;9, storage box;10, partition;11, cutting mechanism;1101, fixed frame;1102, hydraulic cylinder;1103, mounting plate;1104, cutting knife;1105, buffer plate;12, winding mechanism;13, pre-tightening mechanism;1301, fixed seat;1302, fixed block;1303, fixed rod;1304, stand;1305, spring;1306, movable block;1307, connecting rod;14, driving mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: See also Figure 1-8 As shown, the present invention provides a technical solution: a car ceiling sound-absorbing cotton production equipment, comprising: The operating table 1 comprises a tabletop 101, a leg 103 disposed at the bottom of the tabletop 101, and a front bracket 104 disposed at the front side wall of the leg 103. A rectangular opening 102 is formed at the right end of the tabletop 101. The connecting frame 2 is arranged above the desktop 101, and the top surface of the connecting frame 2 is symmetrically provided with a sliding groove 201; The unloading mechanism 3 includes a moving frame 301, a flip plate 302 is rotatably connected to the moving frame 301, a stepping motor 303 is fixedly connected to the outer wall of the moving frame 301, a sliding block 304 is symmetrically connected to the bottom surface of the moving frame 301, the outer wall of the sliding block 304 is slidably connected to the inner wall of the sliding groove 201, and the sliding block 304 is limited by the sliding groove 201, so that the moving frame 301 can move smoothly on the connecting frame 2; The clamping mechanism 8 comprises a stand 801 symmetrically connected to the top surface of the flip plate 302, the top surface of the stand 801 is fixedly connected to an electric push rod 802, the output end of the electric push rod 802 is fixedly connected to a pressing plate 803, and the pressing plate 803 is located on the inner side of the stand 801. During processing, the electric push rod 802 is started to push the pressing plate 803 downward, so that the pressing plate 803 can press the sound-absorbing cotton material, thereby preventing the sound-absorbing cotton from being offset when the cutting machine 710 is cutting the sound-absorbing cotton, thereby improving the cutting accuracy of the sound-absorbing cotton; A storage box 9 is provided on the front bracket 104, and the storage box 9 is located below the unloading mechanism 3. A partition 10 is fixedly connected to the inner wall of the storage box 9, and the partition 10 divides the storage box 9 into a front bin and a rear bin, so as to facilitate the separate storage of the cut sound-absorbing cotton materials; The rear side wall of the tabletop 101 is fixedly connected with an extension plate 4, the top surface of the extension plate 4 is fixedly connected with a console 5, and cylinders 6 are symmetrically arranged on the console 5, and the output end of each cylinder 6 is connected to the rear side wall of the moving frame 301, thereby providing conditions for the moving frame 301 to move forward and backward; A reeling mechanism 12 is fixedly connected to the top of the operating table 1. The reeling mechanism 12 is used to reel in the sound-absorbing cotton. A pre-tightening mechanism 13 is fixedly connected to the top of the operating table 1. The pre-tightening mechanism 13 is located on the right side of the reeling mechanism 12. A driving mechanism 14 is provided on the operating table 1. The pre-tightening mechanism 13 includes a fixed seat 1301, on which a fixed block 1302 is symmetrically connected, a fixed rod 1303 is fixedly connected between the two fixed blocks 1302, the top surface of the fixed seat 1301 is symmetrically connected to a vertical rod 1304, the outer walls of the two vertical rods 1304 are slidably connected to movable blocks 1306, a connecting rod 1307 is fixedly connected between the two movable blocks 1306, the bottom surfaces of the two movable blocks 1306 are fixedly connected to springs 1305, the lower end of each spring 1305 is fixedly connected to the top surface of the fixed seat 1301, the movable blocks 1306 at both ends of the connecting rod 1307 are provided with elastic support through the springs 1305 thereunder, giving the connecting rod 1307 a force to maintain an upward action, thereby tensioning and leveling the sound-absorbing cotton between the fixed rod 1303 and the connecting rod 1307.

[0021] In this embodiment, when the sound-absorbing cotton is produced and processed, the driving mechanism 14 is started to convey the sound-absorbing cotton wound on the winding mechanism 12 to the right, and the sound-absorbing cotton is cut by starting the cutting mechanism 11, and then the sound-absorbing cotton is cut by the cutting machine 710 on the cutting mechanism 7. When cutting, the electric push rod 802 is started to drive the pressing plate 803 to move downward, so that the pressing plate 803 is pressed on the top of the sound-absorbing cotton to prevent the sound-absorbing cotton from being offset when being cut, thereby improving the cutting accuracy. After the sound-absorbing cotton is cut, the cylinder 6 is started to push the moving frame 301 forward. When the moving frame When the flip plate 302 on the inner side of 301 is located directly above the front bin, the stepper motor 303 is started to drive the flip plate 302 to flip, so that the cut sound-absorbing cotton falls into the front bin of the storage box 9 for storage, and then the stepper motor 303 drives the flip plate 302 to reset. After the cylinder 6 is retracted, the electric push rod 802 is closed. At this time, the pressure plate 803 is separated from the remaining sound-absorbing cotton. The stepper motor 303 is started again to drive the flip plate 302 to flip, so that the remaining sound-absorbing cotton falls into the rear bin of the storage box 9 for storage, which is convenient for recycling the remaining sound-absorbing cotton and saves materials.

[0022] Embodiment 2: See also Figure 1-8 As shown, on the basis of the first embodiment, the present invention provides a technical solution: a cutting mechanism 11 is fixedly connected to the top of the operating table 1, the cutting mechanism 11 is located on the left side of the connecting frame 2, the cutting mechanism 11 comprises a fixing frame 1101, a hydraulic cylinder 1102 is fixedly connected to the top of the fixing frame 1101, a mounting plate 1103 is fixedly connected to the output end of the hydraulic cylinder 1102, a buffer plate 1105 is symmetrically connected to the bottom surface of the mounting plate 1103, a cutting knife 1104 is fixedly connected to the bottom surface of the mounting plate 1103, the cutting knife 1104 is located between the two buffer plates 1105, and the suction When the sound-absorbing cotton is transported to the top of the unloading mechanism 3, the mounting plate 1103 is pushed downward by starting the hydraulic cylinder 1102, and then the cutting knife 1104 below the mounting plate 1103 completes the cutting of the sound-absorbing cotton material. Before the cutting knife 1104 cuts the sound-absorbing cotton, the buffer plates 1105 on both sides thereof are first pressed against the upper surface of the sound-absorbing cotton to avoid wrinkles of the sound-absorbing cotton during cutting. At the same time, the buffer plates 1105 can reduce stress buffering before the cutting knife 1104 cuts, reduce the loss of the cutting knife 1104, and extend the service life of the cutting knife 1104. The extension plate 4 is provided with a cutting mechanism 7, which includes a transverse moving plate 701, the bottom surface of the transverse moving plate 701 is fixedly connected to the top outer wall of the extension plate 4, the outer wall of the transverse moving plate 701 is fixedly connected to a servo motor 702, a limiting groove 711 is provided on the servo motor 702, the inner wall of the limiting groove 711 is slidably connected to a moving block 704, the output end of the servo motor 702 is fixedly connected to a screw rod 703, the outer wall of the screw rod 703 is rotatably connected to the inner wall of the transverse moving plate 701, the inner wall of the moving block 704 is threadedly connected to the outer wall of the screw rod 703, and the moving The top of block 1 704 is fixedly connected with a moving frame 705; a limiting groove 2 706 is provided on the moving frame 705, and a moving block 2 709 is slidably connected to the inner wall of the limiting groove 2 706, and a servo motor 2 708 is fixedly connected to the outer wall of the moving frame 705, and a screw rod 2 707 is fixedly connected to the output end of the servo motor 2 708, and the outer wall of the screw rod 2 707 is rotatably connected to the inner wall of the moving frame 705, and the outer wall of the screw rod 2 707 is threadedly connected to the moving block 2 709, and the inner wall of the moving block 2 709 is threadedly connected to the outer wall of the screw rod 2 707, and the bottom surface of the moving block 2 709 is fixedly connected to the cutting machine 710; In this embodiment, by starting the servo motor 1 702 and the servo motor 2 708 to drive the moving block 1 704 and the moving block 2 709 to move left and right and front and back, it is convenient to adjust the cutting position of the cutting machine 710 and improve the applicability.

[0023] Working principle: When the sound-absorbing cotton is produced and processed, the driving mechanism 14 is started to convey the sound-absorbing cotton wound on the winding mechanism 12 to the right, and the sound-absorbing cotton is cut by starting the cutting mechanism 11, and then the sound-absorbing cotton is cut by the cutting machine 710 on the cutting mechanism 7. When cutting, the electric push rod 802 is started to drive the pressing plate 803 to move downward, so that the pressing plate 803 is pressed on the top of the sound-absorbing cotton to prevent the sound-absorbing cotton from being offset when being cut, thereby improving the cutting accuracy. After the sound-absorbing cotton is cut, the cylinder 6 is started to push the moving frame 301 forward. When the moving frame 30 When the inner flip plate 302 is located just above the front bin, the stepper motor 303 is started to drive the flip plate 302 to flip, so that the cut sound-absorbing cotton falls into the front bin of the storage box 9 for storage, and then the stepper motor 303 drives the flip plate 302 to reset. After the cylinder 6 is retracted, the electric push rod 802 is closed. At this time, the pressing plate 803 is separated from the remaining sound-absorbing cotton. The stepper motor 303 is started again to drive the flip plate 302 to flip, so that the remaining sound-absorbing cotton falls into the rear bin of the storage box 9 for storage, which is convenient for recycling the remaining sound-absorbing cotton and saves the sound-absorbing cotton material.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car ceiling sound-absorbing cotton production equipment, characterized in that: include: An operating table (1) comprises a tabletop (101), a support leg (103) arranged at the bottom of the tabletop (101), and a front bracket (104) arranged on the front side wall of the support leg (103); a rectangular opening (102) is provided at the right end of the tabletop (101); A connecting frame (2), the connecting frame (2) being arranged above the desktop (101), and a sliding groove (201) being symmetrically provided on the top surface of the connecting frame (2); The unloading mechanism (3) comprises a moving frame (301), the moving frame (301) is rotatably connected to a flip plate (302), the outer wall of the moving frame (301) is fixedly connected to a stepping motor (303), the bottom surface of the moving frame (301) is symmetrically connected to a sliding block (304), and the outer wall of the sliding block (304) is slidably connected to the inner wall of the sliding groove (201); The clamping mechanism (8) comprises a stand (801) symmetrically connected to the top surface of the flip plate (302), the top surface of the stand (801) being fixedly connected to an electric push rod (802), the output end of the electric push rod (802) being fixedly connected to a pressing plate (803), and the pressing plate (803) being located on the inner side of the stand (801).

2. The automobile ceiling sound-absorbing cotton production equipment according to claim 1 is characterized in that: A storage box (9) is provided on the front bracket (104), the storage box (9) is located below the unloading mechanism (3), and a partition (10) is fixedly connected to the inner wall of the storage box (9), the partition (10) divides the storage box (9) into a front compartment and a rear compartment.

3. The automobile ceiling sound-absorbing cotton production equipment according to claim 1 is characterized by: An extension plate (4) is fixedly connected to the rear side wall of the tabletop (101), a control console (5) is fixedly connected to the top surface of the extension plate (4), cylinders (6) are symmetrically arranged on the control console (5), and an output end of each cylinder (6) is connected to the rear side wall of the moving frame (301).

4. The automobile ceiling sound-absorbing cotton production equipment according to claim 3 is characterized by: The extension plate (4) is provided with a cutting mechanism (7), the cutting mechanism (7) comprising a transverse moving plate (701), the bottom surface of the transverse moving plate (701) being fixedly connected to the top outer wall of the extension plate (4), the outer wall of the transverse moving plate (701) being fixedly connected to a servo motor 1 (702), a limiting groove 1 (711) being provided on the servo motor 1 (702), the inner wall of the limiting groove 1 (711) being slidably connected to a moving block 1 (704), the output end of the servo motor 1 (702) being fixedly connected to a screw rod 1 (703), the outer wall of the screw rod 1 (703) being rotatably connected to the inner wall of the transverse moving plate (701), the inner wall of the moving block 1 (704) being threadedly connected to the outer wall of the screw rod 1 (703), and the top of the moving block 1 (704) being fixedly connected to a moving frame (705); The movable frame (705) is provided with a second limiting groove (706), the inner wall of the second limiting groove (706) is slidably connected to a second movable block (709), the outer wall of the movable frame (705) is fixedly connected to a second servo motor (708), the output end of the second servo motor (708) is fixedly connected to a second screw rod (707), the outer wall of the second screw rod (707) is rotatably connected to the inner wall of the movable frame (705), the outer wall of the second screw rod (707) is threadedly connected to the second movable block (709), the inner wall of the second movable block (709) is threadedly connected to the outer wall of the second screw rod (707), and the bottom surface of the second movable block (709) is fixedly connected to a cutting machine (710).

5. The automobile ceiling sound-absorbing cotton production equipment according to claim 1 is characterized by: A reeling mechanism (12) is fixedly connected to the top of the operating table (1), and the reeling mechanism (12) is used to reel in sound-absorbing cotton. A pre-tensioning mechanism (13) is fixedly connected to the top of the operating table (1), and the pre-tensioning mechanism (13) is located on the right side of the reeling mechanism (12).

6. The automobile ceiling sound-absorbing cotton production equipment according to claim 5 is characterized by: The pre-tightening mechanism (13) comprises a fixed seat (1301), a fixed block (1302) is symmetrically connected to the fixed seat (1301), a fixed rod (1303) is fixedly connected between the two fixed blocks (1302), a vertical rod (1304) is symmetrically connected to the top surface of the fixed seat (1301), a movable block (1306) is slidably connected to the outer walls of the two vertical rods (1304), a connecting rod (1307) is fixedly connected between the two movable blocks (1306), and a spring (1305) is fixedly connected to the bottom surfaces of the two movable blocks (1306), and the lower end of each spring (1305) is fixedly connected to the top surface of the fixed seat (1301).

7. The automobile ceiling sound-absorbing cotton production equipment according to claim 1 is characterized by: A cutting mechanism (11) is fixedly connected to the top of the operating table (1), and the cutting mechanism (11) is located on the left side of the connecting frame (2). The cutting mechanism (11) comprises a fixing frame (1101), and a hydraulic cylinder (1102) is fixedly connected to the top of the fixing frame (1101), and an output end of the hydraulic cylinder (1102) is fixedly connected to a mounting plate (1103), and a buffer plate (1105) is symmetrically connected to the bottom surface of the mounting plate (1103), and a cutting knife (1104) is fixedly connected to the bottom surface of the mounting plate (1103), and the cutting knife (1104) is located between two buffer plates (1105).

8. The automobile ceiling sound-absorbing cotton production equipment according to claim 1 is characterized by: The operating table (1) is provided with a driving mechanism (14).