Cab front wall sound insulation pad and processing equipment
By introducing the coordinated movement of the sealing buckle and the limiting sleeve during the punching process of the sound insulation pad, combined with the shearing thickening fluid material, the problem of poor sealing after punching the sound insulation pad is solved, achieving complete sealing and acoustic barrier of the sound insulation pad, and avoiding sound leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANGZHOU SHENZHOU AUTOMOBILE INTENAL ORNAMENT CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-05-05
AI Technical Summary
In existing technologies, multi-layer solid sound insulation pads cannot be effectively sealed after punching, resulting in a lack of flow of fluid composite materials and failing to effectively prevent sound leakage.
By introducing the sealing buckle and the limiting sleeve into the stamping block, the sound insulation pad holes are sealed. The holes are filled with a shear-thickening fluid material formed by fumed silica nanoparticles and silicone oil to ensure a sealing effect.
It effectively prevents the fluid composite material from flowing out after punching, eliminates the sound leakage problem of traditional sound insulation pads, and improves the sound insulation effect.
Smart Images
Figure CN121973294A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive sound insulation pad manufacturing technology, and more particularly to a front cabin sound insulation pad and processing equipment. Background Technology
[0002] Vehicle quietness is a crucial performance indicator in the automotive industry, especially for passenger cars. Sound insulation pads absorb heat and noise, while also providing some heat insulation and vibration damping, ensuring a relatively quiet and comfortable environment inside the vehicle and improving passenger comfort. Sound insulation pads offer good sound insulation; the larger the coverage area, the better the sound insulation effect.
[0003] The shortcomings of existing technologies are that, since multi-layer solid sound insulation pads are the mainstream and cornerstone of current large-scale, low-cost automobile manufacturing, their advantage lies in the mature process, which can meet most economical needs. Various sound insulation materials of different materials are combined together by stamping to form an integral structure, which can improve the sound insulation effect under the state of multiple coverage. However, the sound insulation pads composed of stamping are inherently prone to sound leakage problems. Summary of the Invention
[0004] The purpose of this invention is to provide a sound insulation pad for the front of a driver's cab and its processing equipment. Punching holes in the sound insulation pad is a crucial step in precision hole processing after the pad has been formed, reserving functional channels for components such as wiring harnesses and pedals. Installation and positioning are achieved through bolt clips. When punching holes in a fluid composite material, the fluid composite material may flow after prolonged static periods, necessitating sealing of the punched holes. Existing technologies do not allow for edge sealing of the sound insulation pad after punching, leading to a lack of fluid composite material flow after punching. In this invention, a punching block... As the punch rod moves further downward, the sound insulation pad forms a hole and presses against the movable plate that is slidably connected to the support block. The movable plate, driven by the downward movement of the punch rod, moves the support block in the opposite direction to the movable plate. The sealing buckle placed at the top of the support block is pushed into the hole formed by the sound insulation pad and, under the pressure of the support block, contacts the limiting sleeve fixed to the top of the punch block. This causes the sealing buckle to move and deform along the outer wall of the limiting sleeve, so that the sealing buckle wraps around and seals the hole in the sound insulation pad. This achieves the sealing treatment of the hole in the sound insulation pad during punching, preventing the fluid composite material inside the sound insulation pad from flowing out after punching.
[0005] A sound insulation pad for the front of a driver's cab includes a heat insulation plate that is fixedly connected to the front of the driver's cab, a sound insulation plate located on the side where the engine is located, and a support plate located between the heat insulation plate and the sound insulation plate for connecting the heat insulation plate and the sound insulation plate. Both sides of the support plate are connected to the heat insulation reinforcement plate and the sound insulation reinforcement plate by means of adhesive hot melting, and the support plate carries a fluid composite material for enhancing sound insulation to form the sound insulation pad for the front of the driver's cab.
[0006] The fluid composite material includes fumed silica nanoparticles and silicone oil or polyethylene glycol. By dispersing the fumed silica nanoparticles in a carrier fluid such as silicone oil or polyethylene glycol, a shear-thickening fluid is formed.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a sound insulation pad for the front of a driver's cab and processing equipment, including a bracket and a synchronous moving platform mounted on the bracket; It also includes a sound insulation pad, with a stamping block and a support platform at each end of the sound insulation pad, and the stamping block and the support platform are respectively fixed to the synchronous moving platform, so that the stamping block and the support platform can punch holes at any point in the sound insulation pad. The support platform is equipped with a movable support block, the top of the support block is equipped with a sealing buckle, the top of the sealing buckle is equipped with a limiting sleeve, and the limiting sleeve is fixed on the stamping block. When the stamping block moves down, it presses the sound insulation pad against the support platform and punches a hole. As the stamping block moves further down, it drives the support block located inside the support platform to move up, so that the sealing buckle placed on the support block passes through the hole of the sound insulation pad and moves along the outer wall of the limiting sleeve to bite and seal the edge of the hole of the sound insulation pad. As a further description of the above technical solution: A movable column is provided through the stamping block, and a stamping rod is movably provided at the bottom end of the movable column. A mounting groove is opened at one end of the stamping rod, and a limiting rod is movably provided in the mounting groove. An elastic spring is fixedly connected to one end of the limiting rod, and the elastic spring is fixedly connected to the stamping rod.
[0008] As a further description of the above technical solution: The bottom end of the stamping rod is provided with a reversing groove, and a reversing rod is provided in the reversing groove. One end of the reversing rod is fixedly connected to a support arm.
[0009] As a further description of the above technical solution: The limiting sleeve is provided with a punched ring, the top of the punched ring is rotatably connected to a rotating shaft ring, the top of the rotating shaft ring is fixedly connected to a connecting ring, and the top of the connecting ring is fixedly connected to the stamping block.
[0010] As a further description of the above technical solution: A guide ring is fixedly connected to the bottom end of the limiting sleeve, and the guide ring is used to limit the movement of the sealing buckle. An abutment ring is fixedly connected inside the limiting sleeve, and the abutment ring is used to limit the movement of the punching ring.
[0011] As a further description of the above technical solution: A movable plate is slidably connected inside the support block. Connecting rods are symmetrically fixed to both ends of the movable plate. A fixed frame is fixed to the end of the connecting rod away from the movable plate. A rack plate is fixed to one end of the fixed frame. A transmission gear is meshed at one end of the rack plate. The transmission gear meshes with a toothed groove on the outer wall of the support block. A directional column is movably connected to the other end of the fixed frame. The directional column is fixed on the support platform. A return spring is sleeved on the outside of the directional column. The return spring is located between the support platform and the bracket.
[0012] As a further description of the above technical solution: The bottom end of the support platform is symmetrically and fixedly connected with a support arm. One end of the support arm is fixedly connected with a limit post. The two ends of the support block are symmetrically provided with limit grooves, and the limit grooves are adapted to the limit posts.
[0013] As a further description of the above technical solution: It also includes an extrusion block, one end of which is fixedly connected to a support rod. The support rod is slidably disposed in a guide groove opened in the stamping block. One end of the support rod is fixedly connected to a slider. The top of the slider is fixedly connected to a support spring, and the support spring is fixedly connected to the stamping block.
[0014] This invention provides a sound insulation pad for the front of a driver's cab and a processing device thereon, which has the following beneficial effects: In this invention, fumed silica nanoparticles are dispersed in a carrier fluid such as silicone oil or polyethylene glycol to form a shear-thickening fluid sound insulation pad. This pad can fill the cavity that is adapted to the vehicle body structure, forming a complete and flawless acoustic barrier, thus fundamentally eliminating the sound leakage problem that is difficult to avoid with traditional integrated sound insulation pads.
[0015] In this invention, by further lowering the stamping rod in the stamping block, the sound insulation pad forms a hole and abuts against the movable plate located in the sliding connection of the support block. The movable plate drives the support block to move in the opposite direction to the movable plate as the stamping rod moves downward. The sealing buckle placed at the top of the support block pushes into the hole formed by the sound insulation pad and contacts the limiting sleeve fixed to the top of the stamping block under the pressure of the support block. This causes the sealing buckle to move along the outer wall path of the limiting sleeve and deform, so that the sealing buckle wraps and seals the hole opened in the sound insulation pad. This achieves the sealing treatment of the hole in the sound insulation pad during the punching process, and prevents the fluid composite material in the sound insulation pad from flowing out after punching. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a sound insulation pad for the front of a driver's cab and the processing equipment proposed in this invention; Figure 2 This is a schematic diagram of the stamping block in this invention; Figure 3 This is a schematic diagram of the guide groove in the present invention; Figure 4This is a schematic diagram of the movable column in this invention; Figure 5 This is a schematic diagram of the support platform in this invention; Figure 6 This is a schematic diagram of the support block in this invention; Figure 7 This is a schematic diagram of the rotating collar in this invention; Figure 8 In this invention Figure 7 Enlarged view of point A in the middle; Figure 9 In this invention Figure 7 Enlarged view of point B in the middle; Figure 10 This is a schematic diagram of the sound insulation pad in this invention; Figure 11 This is a schematic diagram of the stamping rod in this invention.
[0017] Legend: 1. Bracket; 2. Synchronous moving platform; 3. Stamping block; 31. Movable column; 311. Guide groove; 301. Mounting groove; 302. Limiting rod; 303. Elastic spring; 304. Reversing groove; 305. Reversing rod; 306. Support arm; 32. Stamping rod; 33. Limiting sleeve; 331. Guide ring; 332. Abutment ring; 34. Punched ring; 35. Rotary shaft ring; 351. Connecting ring; 352. Locking strip 353. Connecting groove; 36. Tension spring; 4. Extrusion block; 41. Support rod; 42. Slider; 43. Support spring; 5. Support platform; 51. Support block; 511. Tooth groove; 512. Limiting slide groove; 52. Movable plate; 521. Connecting rod; 53. Rack plate; 531. Fixing frame; 54. Transmission gear; 55. Directional column; 56. Return spring; 57. Support arm; 6. Hydraulic component; 7. Sound insulation pad; 8. Sealing buckle. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0019] A sound insulation pad for the front of a driver's cab includes a heat insulation plate that is fixedly connected to the front of the driver's cab, a sound insulation plate located on the side where the engine is located, and a support plate located between the heat insulation plate and the sound insulation plate for connecting the heat insulation plate and the sound insulation plate. Both sides of the support plate are connected to the heat insulation reinforcement plate and the sound insulation reinforcement plate by means of adhesive hot melting, and the support plate carries a fluid composite material for enhancing sound insulation to form the sound insulation pad for the front of the driver's cab.
[0020] The fluid composite material includes fumed silica nanoparticles and silicone oil or polyethylene glycol. By dispersing the fumed silica nanoparticles in a carrier fluid such as silicone oil or polyethylene glycol, a shear-thickening fluid is formed.
[0021] Reference Figure 1-11 A sound insulation pad processing device for the front of a driver's cab includes a bracket 1 and a synchronous moving platform 2 mounted on the bracket 1; it also includes a sound insulation pad 7, with a stamping block 3 and a support platform 5 at each end of the sound insulation pad 7, and the stamping block 3 and the support platform 5 are respectively fixed to the synchronous moving platform 2, so that the stamping block 3 and the support platform 5 can punch holes at any point on the sound insulation pad 7; a support block 51 is movably mounted inside the support platform 5, and a sealing buckle 8 is mounted on the top of the support block 51, and a limiting sleeve 33 is mounted on the top of the sealing buckle 8, and the limiting sleeve 33 is fixed on the stamping block 3; when the stamping block 3 moves down, the stamping block 3 presses the sound insulation pad 7 against the support platform 5 and punches holes, and as the stamping block 3 moves further down, the stamping block 3 drives the support block 51 located inside the support platform 5 to move up, so that the sealing buckle 8 placed on the support block 51 passes through the punched holes of the sound insulation pad 7 and moves along the outer wall of the limiting sleeve 33 to bite and seal the edge of the punched holes of the sound insulation pad 7.
[0022] Specifically, the support frame 1 is a cylindrical support leg that supports the synchronous moving platform 2. A hydraulic component 6 is fixed to one end of the support frame 1, and both ends of the hydraulic component 6 are connected to the synchronous moving platform 2. The synchronous moving platform 2 is used to adjust the position of the connected stamping block 3 and the support platform 5, facilitating adjustments based on the required punching positions of the sound insulation pad 7. The synchronous moving platform 2 is existing technology and will not be described in detail. A sealing buckle 8 is placed on the sliding support block 51 located within the support platform 5. When the stamping block 3 moves downward, it presses the sound insulation pad 7 against the support platform 5. Further downward movement of the stamping rod 32 within the stamping block 3 causes the sound insulation pad 7 to form... The hole is formed and abuts against the movable plate 52 that is slidably connected to the support block 51. The movable plate 52 drives the support block 51 to move in the opposite direction to the movable plate 52 as the stamping rod 32 moves downward. The sealing buckle 8 placed at the top of the support block 51 is pushed into the hole formed by the sound insulation pad 7, and under the pressure of the support block 51, it contacts the limiting sleeve 33 fixed to the top of the stamping block 3, so that the sealing buckle 8 moves along the outer wall path of the limiting sleeve 33 and deforms, so that the sealing buckle 8 wraps and seals the hole opened in the sound insulation pad 7, realizing the sealing treatment of the hole in the sound insulation pad 7 during the punching process, and preventing the fluid composite material in the sound insulation pad 7 from flowing out after punching.
[0023] A movable column 31 is provided through the stamping block 3. A stamping rod 32 is movably provided at the bottom end of the movable column 31. A mounting groove 301 is opened at one end of the stamping rod 32. A limiting rod 302 is movably provided in the mounting groove 301. An elastic spring 303 is fixedly connected to one end of the limiting rod 302 and is fixedly connected to the stamping rod 32. A reversing groove 304 is opened at the bottom end of the stamping rod 32. A reversing rod 305 is provided in the reversing groove 304. One end of the reversing rod 305 is fixedly connected to the reversing rod 305. A support arm 306 is attached; a punched ring 34 is movably provided inside the limiting sleeve 33, and a rotating shaft ring 35 is rotatably connected to the top of the punched ring 34. A connecting ring 351 is fixedly connected to the top of the rotating shaft ring 35, and the top of the connecting ring 351 is fixedly connected to the stamping block 3; a guide ring 331 is fixedly connected to the bottom end of the limiting sleeve 33, and the guide ring 331 is used to limit the movement of the sealing buckle 8; a stop ring 332 is fixedly connected inside the limiting sleeve 33, and the stop ring 332 is used to limit the movement of the punched ring 34.
[0024] Specifically, the movable column 31, which is movably connected inside the stamping block 3, is fixed on the synchronous moving platform 2. When the synchronous moving platform 2 drives the movable column 31 to move downward under the action of the hydraulic component 6, the limiting sleeve 33, which is fixed to the bottom end of the stamping block 3, moves downward synchronously. The stamping rod 32, which is rotatably connected to the bottom end of the movable column 31, pushes the sound insulation pad 7 against the support platform 5 and punches a hole. At the same time, the bottom end of the punching ring 34, which is movably connected inside the limiting sleeve 33, has a cutting edge at the contact part with the sealing buckle 8 in its unbent state. This allows the punching ring 34 to cut the punched part of the sound insulation pad 7 under the action of the stamping rod 32, ensuring that the edge of the punched part of the sound insulation pad 7 is neat and reducing the occurrence of burrs. Secondly, when the stamping rod 32 moves further down, the stamping rod 32 rotates and is supported by the elastic spring 303 in the stamping rod 32. The limiting rod 302 rotates to the connecting groove 353 opened in the rotating ring 35, so that the limiting rod 302 is separated from the locking strip 352 fixed to the rotating ring 35. Under the elastic tension of the tension spring 36, the punching ring 34 moves along the inner wall of the limiting sleeve 33 and abuts against the abutment ring 332, so that the punching ring 34 and the limiting sleeve 33 form an arc-shaped guide structure, so that the sealing buckle 8 can extend into the sound insulation pad 7 and bend after the punching ring 34 and the limiting sleeve 33 form an arc-shaped guide structure to seal the punching part of the sound insulation pad 7. When the punching rod 32 moves up, the punching rod 32 rotates and resets, the limiting rod 302 abuts against the locking strip 352, and the elastic spring 303 is compressed and contracted, so that the limiting rod 302 passes through the locking strip 352 and abuts against the locking strip 352, so that the sound insulation pad 7 can be punched again.
[0025] A movable plate 52 is slidably connected inside the support block 51. Connecting rods 521 are symmetrically fixed at both ends of the movable plate 52. A fixed frame 531 is fixed at the end of the connecting rod 52 away from the movable plate 52. A rack plate 53 is fixed at one end of the fixed frame 531. A transmission gear 54 is engaged at one end of the rack plate 53. The transmission gear 54 engages with a toothed groove 511 on the outer wall of the support block 51. A directional column 55 is movably connected to the other end of the fixed frame 531. The directional column 55 is fixed on the support platform 5. A return spring 56 is sleeved on the outside of the directional column 55. The return spring 56 is located between the support platform 5 and the bracket 1. A support arm 57 is symmetrically fixed at the bottom end of the support platform 5. A limit post is fixed at one end of the support arm 57. Limit grooves 512 are symmetrically opened at both ends of the support block 51. The limit grooves 512 are adapted to the limit posts.
[0026] Specifically, the toothed grooves 511 at both ends of the support block 51 mesh with the transmission gear 54. When the stamping rod 32 abuts against the movable plate 52, the stamping rod 32 drives the movable plate 52 to move downward. The fixed frame 531 connected to the movable plate 52 via the connecting rod 521 moves downward synchronously. The rack plate 53 fixedly connected to the fixed frame 531 drives the meshing transmission gear 54 to rotate, so that the support block 51 meshing with the transmission gear 54 moves in the opposite direction to the movable plate 52 under the drive of the transmission gear 54, which facilitates the squeezing of the sealing buckle 8 placed at the top of the support block 51 into the partition. The sound pad 7 is squeezed and sealed in the hole. When the stamping rod 32 moves down to contact the guide rod, the guide rod is adapted to the guide groove 311 of the stamping rod 32. When the stamping rod 32 moves down, the guide rod moves along the arc-shaped guide groove 311 of the stamping rod 32, so that the stamping rod 32 rotates. Finally, when the stamping rod 32 retracts and resets, the reset spring 56 sleeved on the outside of the directional post 55 at one end of the fixing frame 531 drives the fixing frame 531 to reset, so that the support block 51 can reset and replenish the sealing buckle 8.
[0027] It also includes an extrusion block 4, one end of which is fixedly connected to a support rod 41. The support rod 41 is slidably disposed in a guide groove 311 opened in the stamping block 3. One end of the support rod 41 is fixedly connected to a slider 42. The top end of the slider 42 is fixedly connected to a support spring 43, and the support spring 43 is fixedly connected to the stamping block 3.
[0028] Working principle: The bracket 1 supports the synchronous moving platform 2. One end of the bracket 1 is fixedly connected to a hydraulic component 6, and both ends of the hydraulic component 6 are respectively connected to the synchronous moving platform 2. The synchronous moving platform 2 is used to adjust the position of the connected stamping block 3 and the support platform 5, so as to facilitate adjustment according to the required punching position of the sound insulation pad 7. A sealing buckle 8 is placed on the support block 51 slidably connected inside the support platform 5. When the stamping block 3 moves down, when the synchronous moving platform 2 drives the movable column 31 to move downward under the action of the hydraulic component 6, the limiting sleeve 33 fixed to the bottom end of the stamping block 3 moves downward synchronously. The stamping rod 32 rotatably connected to the bottom end of the movable column 31 pushes the sound insulation pad 7 against the support platform 5 and punches a hole. At the same time, the punching rod 32 rotatably connected inside the limiting sleeve 33... The bottom end of the punch ring 34, in contact with the sealing buckle 8 in its unbent state, has a cutting edge. This facilitates the punch ring 34 cutting the punched area of the sound insulation pad 7 under the action of the punching rod 32, ensuring neat edges of the punched area and reducing burrs. Secondly, as the punching rod 32 moves further down, it rotates. The limiting rod 302, supported by the elastic spring 303, rotates to the connecting groove 353 in the rotating shaft ring 35. This separates the limiting rod 302 from the locking strip 352 fixed to the rotating shaft ring 35. The elastic tension of the tension spring 36 then drives the punch ring 34 to move along the inner wall of the limiting sleeve 33 and press against the abutment ring 332. This creates an arc-shaped guide structure between the punch ring 34 and the limiting sleeve 33, facilitating the sealing buckle... 8 extends into the sound insulation pad 7 and, after bending into the arc-shaped guide structure formed by the punching ring 34 and the limiting sleeve 33, seals the punched area of the sound insulation pad 7. When the punching rod 32 moves upward, it rotates to reset, and the limiting rod 302 abuts against the locking strip 352. It also contracts by compressing the elastic spring 303, allowing the limiting rod 302 to pass through the locking strip 352 and abut against it, facilitating the re-punching of the sound insulation pad 7. Simultaneously, the support block 51 moves synchronously. When the punching rod 32 abuts against the movable plate 52, it drives the movable plate 52 to move downward. The fixed frame 531, connected to the movable plate 52 via the connecting rod 521, moves downward synchronously. The rack plate 53, fixedly connected to the fixed frame 531, drives the meshing transmission gear 54 to rotate. This allows the support block 51, which meshes with the transmission gear 54, to move in the opposite direction to the movable plate 52 under the drive of the transmission gear 54. This facilitates the insertion of the sealing buckle 8 placed at the top of the support block 51 into the hole opened in the sound insulation pad 7 and compressing it for sealing. When the stamping rod 32 moves downward to contact the guide rod, the guide rod matches the guide groove 311 opened in the stamping rod 32. This allows the stamping rod 32 to rotate as it moves downward during the over-punch. Finally, when the stamping rod 32 retracts and resets, the reset spring 56 sleeved on the outside of the directional post 55 at one end of the fixed frame 531 drives the fixed frame 531 to reset, facilitating the reset of the support block 51 and the replenishment of the sealing buckle 8.
[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A sound insulation pad for the front of a driver's cab, characterized in that, It includes a heat insulation plate that is fixedly connected to the front bulkhead of the vehicle cab, a sound insulation plate located on the side where the vehicle engine is located, and a support plate located between the heat insulation plate and the sound insulation plate for connecting the heat insulation plate and the sound insulation plate. Both sides of the support plate are connected to the heat insulation reinforcement plate and the sound insulation reinforcement plate by means of adhesive hot melting, and the support plate carries a sound insulation pad for the front bulkhead of the cab composed of fluid composite material for enhancing sound insulation.
2. The sound insulation pad for the front of the driver's cab according to claim 1, characterized in that, The fluid composite material includes fumed silica nanoparticles and silicone oil or polyethylene glycol. By dispersing the fumed silica nanoparticles in a carrier fluid such as silicone oil or polyethylene glycol, a shear-thickening fluid is formed.
3. A cab front sound insulation pad processing equipment, used to process the cab front sound insulation pads of claims 1-2, characterized in that, Includes a support (1) and a synchronous moving platform (2) on the support (1); It also includes a sound insulation pad (7), which has a stamping block (3) and a support platform (5) at both ends, and the stamping block (3) and the support platform (5) are respectively fixed on the synchronous moving platform (2), so that the stamping block (3) and the support platform (5) can punch holes at any point on the sound insulation pad (7); The support platform (5) is provided with a movable support block (51), the top of the support block (51) is provided with a sealing buckle (8), the top of the sealing buckle (8) is provided with a limiting sleeve (33), and the limiting sleeve (33) is fixed on the stamping block (3); When the stamping block (3) moves down, the stamping block (3) presses the sound insulation pad (7) against the support platform (5) and punches a hole. As the stamping block (3) moves further down, the stamping block (3) drives the support block (51) located inside the support platform (5) to move up, so that the sealing buckle (8) placed on the support block (51) passes through the hole of the sound insulation pad (7) and moves along the outer wall of the limiting sleeve (33) to bite and seal the edge of the hole of the sound insulation pad (7).
4. The cab front sound insulation pad processing equipment according to claim 3, characterized in that, A movable column (31) is provided through the stamping block (3). A stamping rod (32) is movably provided at the bottom end of the movable column (31). A mounting groove (301) is provided at one end of the stamping rod (32). A limiting rod (302) is movably provided in the mounting groove (301). An elastic spring (303) is fixedly connected to one end of the limiting rod (302), and the elastic spring (303) is fixedly connected to the stamping rod (32).
5. The cab front sound insulation pad processing equipment according to claim 4, characterized in that, The bottom end of the stamping rod (32) is provided with a reversing groove (304), and a reversing rod (305) is provided in the reversing groove (304). One end of the reversing rod (305) is fixedly connected to a support arm (306).
6. The cab front sound insulation pad processing equipment according to claim 3, characterized in that, The limiting sleeve (33) is provided with a punching ring (34), the top of the punching ring (34) is rotatably connected to a rotating shaft ring (35), the top of the rotating shaft ring (35) is fixedly connected to a connecting ring (351), and the top of the connecting ring (351) is fixedly connected to the stamping block (3).
7. The cab front sound insulation pad processing equipment according to claim 3, characterized in that, The bottom end of the limiting sleeve (33) is fixedly connected to a guide ring (331), and the guide ring (331) is used to limit the movement of the sealing buckle (8). The inside of the limiting sleeve (33) is fixedly connected to a stop ring (332), and the stop ring (332) is used to limit the movement of the punching ring (34).
8. The cab front sound insulation pad processing equipment according to claim 3, characterized in that, A movable plate (52) is slidably connected inside the support block (51). Connecting rods (521) are symmetrically fixed at both ends of the movable plate (52). A fixed frame (531) is fixed at one end of the connecting rod (521) away from the movable plate (52). A rack plate (53) is fixed at one end of the fixed frame (531). A transmission gear (54) is engaged at one end of the rack plate (53). The transmission gear (54) engages with the toothed groove (511) opened on the outer wall of the support block (51). A directional column (55) is movably connected to the other end of the fixed frame (531). The directional column (55) is fixed on the support platform (5). A return spring (56) is sleeved on the outside of the directional column (55). The return spring (56) is located between the support platform (5) and the bracket (1).
9. The cab front sound insulation pad processing equipment according to claim 3, characterized in that, The support platform (5) is symmetrically fixedly connected to a support arm (57) at its bottom end. One end of the support arm (57) is fixedly connected to a limiting post. The two ends of the support block (51) are symmetrically provided with limiting grooves (512), and the limiting grooves (512) are adapted to the limiting post.
10. The cab front sound insulation pad processing equipment according to claim 3, characterized in that, It also includes an extrusion block (4), one end of which is fixedly connected to a support rod (41). The support rod (41) is slidably disposed in a guide groove (311) opened in the stamping block (3). One end of the support rod (41) is fixedly connected to a slider (42). The top end of the slider (42) is fixedly connected to a support spring (43), and the support spring (43) is fixedly connected to the stamping block (3).