Noise reduction sponge gluing device and processing method

By designing a noise-reducing sponge adhesive device including a conveying mechanism, a glue coating mechanism and an extrusion roller, the problem of uneven glue coating caused by the pit structure on the sponge surface is solved, and a more efficient sponge adhesive effect is achieved.

CN119406658AInactive Publication Date: 2025-02-11CHANGZHOU DENGXIN POLYMER MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202411597770.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-02-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During processing of existing noise reduction sponges, due to the pit structure of the sound-absorbing cotton surface, it is difficult to apply glue evenly, affecting the adhesion effect of the sponge.

Method used

Design a noise-reducing sponge adhesive device including a conveyor mechanism, a glue coating mechanism and an extrusion roller. The lower sponge is driven to move through the conveyor belt. The glue coating roller initially coats the top of the sponge, and the coating assembly is secondary to cover the groove. The extrusion roller further adheres to the sponge closely.

Benefits of technology

Through the use of this device, the glue can be applied more evenly to the sponge surface, including the grooves, improving the adhesion effect of the sponge and the overall adhesive quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of sponge processing, and particularly discloses a noise reduction sponge gluing device and a processing method.The noise reduction sponge gluing device comprises a support, a conveying mechanism arranged on the support, a gluing mechanism arranged above the conveying mechanism and an extrusion roller arranged on one side of the gluing mechanism; the conveying mechanism comprises a first driving motor, a driving wheel, a driven wheel and a conveying belt, sponge needing to be pasted comprises upper-layer sponge and lower-layer sponge, the lower-layer sponge is placed at the top end of the conveying belt, the upper-layer sponge is rotatably placed above the support, the conveying belt drives the lower-layer sponge to move in the direction of the extrusion rollers, and the lower-layer sponge is driven by the conveying belt to move in the direction of the extrusion rollers. The gluing mechanism comprises a glue solution cylinder, a gluing roller, a mounting rod and a smearing assembly, the top end of the lower-layer sponge is coated with the glue solution in a rolling mode through the gluing roller, and the top end of the lower-layer sponge is coated with the glue solution for the second time through the smearing assembly.
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Description

Technical Field

[0001] The invention relates to the technical field of sponge processing, and in particular to a noise reduction sponge adhesive device and a processing method. Background Art

[0002] Engineering machinery (such as vehicle engines) generates a lot of noise when working, which will affect the passengers in the car and reduce their riding comfort. In the prior art, in order to reduce the transmission of engine compartment noise, sound-absorbing sponges are usually set on the engine compartment cover. Sound-absorbing sponges are ordinary sponges formed by high pressure. However, as the requirements of passengers for noise are further improved, simply using a layer of sound-absorbing sponges can no longer meet the requirements of passengers. Therefore, the existing noise reduction sponges have a multi-layer composite structure. In addition to sound-absorbing sponges that reduce low- and medium-frequency noise, there are also materials that absorb high-frequency noise and non-woven fabric layers that prevent sponge aging, etc., which can be pasted and composited according to the user's usage requirements.

[0003] A gluing device is used in the processing of noise reduction sponge. Since the surface of the sound-absorbing cotton often has a pit structure, the gluing device cannot apply glue to the pits on the sound-absorbing cotton when applying glue to the surface of the sound-absorbing cotton, resulting in less glue in the pits, affecting the sticking effect of the sound-absorbing cotton. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a noise reduction sponge adhesive device and a processing method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The conveyor belt is provided with a plurality of driving wheels, a plurality of driving wheels and a plurality of driven wheels, and a plurality of driving wheels are provided on the conveyor belt. The plurality of driving wheels are provided with a plurality of driving wheels, a plurality of driving wheels are provided on the conveyor belt, and a plurality of driving wheels are provided on the conveyor belt. The plurality of driving wheels are provided with a plurality of driving wheels, a plurality of driving wheels are provided on the conveyor belt, and a plurality of driving wheels are provided on the conveyor belt.

[0007] Preferably, the bracket includes a side plate, a support roller and a support plate, the side plates are two, the support roller is rotatably arranged between the two side plates, the support plate is fixedly arranged between the two side plates, there are multiple support rollers, the upper sponge is placed on multiple support rollers, and one side of the upper sponge is placed under the squeezing roller.

[0008] Preferably, the driving wheel and the driven wheel are both rotatably arranged between the two side plates, the conveyor belt is arranged around the outer circumference of the driving wheel and the driven wheel, the driving motor 1 is fixedly arranged on one side of the side plate, and one end of the driving wheel is arranged at the output end of the driving motor 1.

[0009] Preferably, the glue cylinder is arranged between the two side plates, a discharge block is arranged at the bottom of the glue cylinder, a fixed frame is arranged at the bottom of the discharge block, the glue coating roller is rotatably arranged in the fixed frame, the bottom of the fixed frame is open, the lower part of the glue coating roller is exposed from the bottom of the fixed frame, and the coating roller is located above the conveyor belt. The discharge block is hollow inside, and the glue flows from the glue cylinder through the discharge block into the fixed frame, so that the glue covers the glue coating roller, and the glue coating roller rotates to roll the glue on the top of the lower sponge.

[0010] Preferably, a blocking strip is slidably arranged inside the glue cylinder, and the blocking strip and the discharge block are matched in shape. A driving source is arranged at one end outside the glue cylinder, and the driving source passes through a circular plate rotatably arranged at the output end of the glue cylinder, and an elliptical groove is arranged on one side of the circular plate, and one end of the blocking strip is slidably arranged in the elliptical groove. There are two circular plates, which are arranged on opposite sides of the glue cylinder, and the two circular plates are fixedly connected. The driving source drives the circular plate to rotate, and the rotation of the circular plate drives the elliptical groove to rotate, and the rotation of the elliptical groove drives the blocking strip to move up and down, and the up and down movement of the blocking strip controls the opening and closing of the discharge block.

[0011] Preferably, the mounting rod is slidably arranged on the side plate and is located on the side of the fixed frame close to the extrusion roller. The smearing assembly is arranged on the mounting rod. The smearing assembly includes a fixed ring, a torsion spring, a rotating ring, a telescopic kit and a brush head. The fixed ring is fixedly arranged on the mounting rod, the rotating ring is rotatably arranged on the mounting rod, the torsion spring is sleeved on the mounting rod, one end of the torsion spring is connected to the fixed ring, and the other end is connected to the rotating ring.

[0012] Preferably, the telescopic kit includes a telescopic rod, a limiting ring and a spring, the fixed end of the telescopic rod is fixedly connected to the rotating ring, the telescopic end of the telescopic rod is connected to the brush head, the spring is arranged around the telescopic rod, the limiting ring is arranged at the fixed end of the telescopic rod, one end of the spring is connected to the limiting ring, and the other end is connected to the brush head.

[0013] Preferably, a plurality of the smearing components are provided, and the smearing components are arranged obliquely toward a side away from the fixed frame, and the bristles of the brush head are arranged vertically downward.

[0014] Preferably, a second driving motor is provided at one end of the squeezing roller, and the squeezing roller and the glue coating roller are synchronously connected by a synchronous belt structure.

[0015] Preferably, an adjusting mechanism is provided on one side of the side plate, and the adjusting mechanism comprises a support plate one, a support plate two, a rotating motor, a rotating column, a driving block, a limiting rod and a supporting block, wherein the support plate one and the support plate two are fixedly arranged on the side plate, the rotating motor is arranged on the top end of the support plate one, the rotating column is arranged on the output end of the rotating motor, the rotating column is rotatably arranged between the support plate one and the support plate two, the driving block is fixedly arranged on the rotating column, the driving block is cylindrical, and the upper end face of the driving block is an inclined face, the rotating column is located at the center of the driving block, the limiting rod is vertically movably arranged on the top end of the driving block, the supporting block is arranged on the top end of the support plate two, a connecting block is arranged on the limiting rod and is located below the support plate one, and the connecting block is fixedly connected to the mounting rod.

[0016] A processing method according to the above-mentioned noise reduction sponge adhesive device comprises the following steps:

[0017] S1. Place the lower sponge on the conveyor belt and the upper sponge on the support roller, start the rotating motor, adjust the position of the limit rod, drive the mounting rod and the coating assembly to move up and down, adjust the distance between the bristles and the lower sponge, and turn off the rotating motor after adjustment;

[0018] S2, start the driving source to rotate the circular plate, lift the blocking strip upward, so that the glue can flow from the glue barrel to the glue coating roller, and turn off the driving source;

[0019] S3, start the conveying mechanism to drive the lower layer of sponge to move to the squeezing roller, start the second driving motor, drive the squeezing roller and the glue coating roller to rotate synchronously, and glue the sponge;

[0020] S4, when the sponge gluing is about to be completed, start the driving source, rotate the circular plate to drive the blocking strip to move downward, block the discharging block, and turn off the driving source;

[0021] S5. The sponge gluing is completed, and the transmission mechanism and the second driving motor are turned off.

[0022] Compared with the prior art, the present invention has the following beneficial effects: by arranging the conveying mechanism to convey the lower sponge to one side, while the lower sponge moves, the glue coating roller preliminarily applies glue to the top of the lower sponge, and the coating component further brushes the coated glue, so that the glue can be applied to the groove of the sponge, so that the gluing area is increased and the gluing effect is improved. The adjustment mechanism can adjust the distance between the glue coating component and the lower sponge, so that the brush bristles and the top of the lower sponge maintain a suitable distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a noise reduction sponge adhesive device proposed by the present invention;

[0024] Figure 2 for Figure 1 Another perspective hides a schematic diagram of the structure of a side panel;

[0025] Figure 3 It is a structural schematic diagram of the glue coating mechanism;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure from another perspective;

[0027] Figure 5 It is a schematic diagram of the structure inside the glue coating roller;

[0028] Figure 6 It is a cross-sectional view of a part of the gluing mechanism;

[0029] Figure 7 It is a structural schematic diagram of the glue coating component;

[0030] Figure 8 for Figure 4 A magnified schematic diagram of center A.

[0031] In the figure: 1 bracket, 11 side plate, 111 limit groove, 12 support roller, 13 support plate, 2 transmission mechanism, 21 drive motor 1, 22 driving wheel, 23 driven wheel, 24 conveyor belt, 3 glue coating mechanism, 31 glue cylinder, 311 discharge block, 3111 vertical through groove, 312 fixed frame, 313 blocking strip, 314 driving source, 315 round plate, 3151 elliptical groove, 316 connecting rod, 32 glue coating roller, 33 mounting rod, 34 coating Components, 341 fixed ring, 342 torsion spring, 343 rotating ring, 344 telescopic kit, 3441 telescopic rod, 3442 limiting ring, 3443 spring, 345 brush head, 4 squeezing roller, 41 driving motor 2, 51 upper sponge, 52 lower sponge, 6 adjustment mechanism, 61 support plate 1, 62 support plate 2, 63 rotating motor, 64 rotating column, 65 driving block, 651 limiting groove, 66 limiting rod, 661 connecting block, 67 supporting block. DETAILED DESCRIPTION

[0032] Please refer to Figure 1-Figure 8 A noise reduction sponge gluing device and a processing method, comprising a bracket 1, a conveying mechanism 2 arranged on the bracket 1, a gluing mechanism 3 arranged above the conveying mechanism 2 and an extrusion roller 4 arranged on one side of the gluing mechanism 3, the conveying mechanism 2 comprises a driving motor 21, a driving wheel 22, a driven wheel 23 and a conveyor belt 24, the sponge to be pasted comprises an upper sponge 51 and a lower sponge 52, the upper sponge 51 is rotatably placed above the bracket 1, the lower sponge 52 is placed on the top of the conveyor belt 24, and the conveyor belt 24 drives the lower sponge 52 to move toward the extrusion roller 4.

[0033] The glue coating mechanism 3 includes a glue cylinder 31, a glue coating roller 32, a mounting rod 33 and a coating assembly 34. The glue cylinder 31 contains glue for gluing. The glue coating roller 32 rolls and coats the glue on the top of the lower sponge 52. The coating assembly 34 coats the glue coated on the top of the lower sponge 52 for a second time, so that the glue can be better coated on the concave and uneven parts of the top of the lower sponge 52. The side of the upper sponge 51 close to the squeezing roller 4 covers the top of the lower sponge 52 coated with glue. The squeezing roller 4 then squeezes the upper sponge 51 and the lower sponge 52 coated with glue, so that the upper sponge 51 and the lower sponge 52 are more tightly adhered.

[0034] The bracket 1 includes a side plate 11, a support roller 12 and a support plate 13. The side plate 11 has two parts. The support roller 12 is rotatably arranged between the two side plates 11. The support plate 13 is fixedly arranged between the two side plates 11. There are multiple support rollers 12. The upper sponge 51 is placed on multiple support rollers 12. The support rollers 12 play a supporting and guiding role, guiding the upper sponge 51 from above the lower sponge 52 to the side close to the squeezing roller 4, and aligning it with the lower sponge 52 coated with glue and placing it together under the squeezing roller 4.

[0035] The driving wheel 22 and the driven wheel 23 are both rotatably disposed between the two side plates 11, the conveyor belt 24 is disposed around the outer circumference of the driving wheel 22 and the driven wheel 23, the driving motor 1 21 is fixedly disposed on one side of the side plate 11, and one end of the driving wheel 22 is disposed at the output end of the driving motor 1 21. In this embodiment, the driving motor 1 21 drives the driving wheel 22 to rotate clockwise, driving the driven wheel 23 to rotate clockwise, so that the conveyor belt 24 drives the lower layer sponge 52 to move toward the squeezing roller 4.

[0036] The glue cylinder 31 is arranged between the two side plates 11 and between the upper sponge 51 and the lower sponge 52. A discharge block 311 is arranged at the bottom of the glue cylinder 31. A fixed frame 312 is arranged at the bottom of the discharge block 311. The glue roller 32 is rotatably arranged in the fixed frame 312. The lower part of the fixed frame 312 is opened. The lower part of the glue roller 32 is exposed from the lower part of the fixed frame 312. The coating roller 32 is located above the conveyor belt 24. A vertical through groove 3111 is arranged inside the discharge block 311. The upper end of the vertical through groove 3111 is wider than the lower end. The glue passes through the discharge block 311 from the vertical through groove 3111 and flows into the fixed frame 312, so that the glue covers the glue roller 32. The glue roller 32 rotates to roll the glue on the top of the lower sponge 52.

[0037] A blocking strip 313 is slidably arranged in the glue cylinder 31, and the blocking strip 313 and the vertical through groove 3111 are matched in shape. The blocking strip 313 can be moved downward to completely block the vertical through groove 3111, and when the glue is not sticky, the glue is prevented from continuing to flow out of the glue cylinder 31. A driving source 314 is arranged on one side of the side plate 11, and a circular plate 315 is arranged on the output end of the driving source 314. The circular plate 315 is rotatably arranged on the inner side wall of the glue cylinder 31, and an elliptical groove 3151 is arranged on one side of the circular plate 315. One end of the blocking strip 313 is slidably arranged in the elliptical groove 3151. There are two circular plates 315, which are respectively arranged on opposite sides of the glue cylinder 31, and a connecting rod 316 is arranged between the two circular plates 315. The driving source 314 drives the circular plate 315 to rotate, and the rotation of the circular plate 315 drives the elliptical groove 3151 to rotate. Under the limiting action of the vertical through groove 3111, the rotation of the elliptical groove 3151 drives the blocking strip 313 to move up and down in the vertical through groove 3111. The up and down movement of the blocking strip 313 can open or block the vertical through groove 3111, thereby controlling the opening and closing of the discharge block 311 and the discharge flow rate.

[0038] The side plate 11 is provided with a limiting groove 111, and the limiting groove 111 is vertically provided. The mounting rod 33 is slidably provided in the limiting groove 111 and is located on the side of the fixed frame 312 close to the extrusion roller 4. The smearing component 34 is provided on the mounting rod 33, and the smearing component 34 includes a fixing ring 341, a torsion spring 342, a rotating ring 343, a telescopic kit 344 and a brush head 345. The fixing ring 341 is fixedly provided on the mounting rod 33, the torsion spring 342 is sleeved on the mounting rod 33, the rotating ring 343 is rotatably provided on the mounting rod 33, one end of the torsion spring 342 is connected to the fixing ring 341, and the other end is connected to the rotating ring 343.

[0039] The telescopic kit 344 is fixedly connected to the rotating ring 343, and the telescopic kit 344 includes a telescopic rod 3441, a limiting ring 3442 and a spring 3443. The fixed end of the telescopic rod 3441 is fixedly connected to the rotating ring 343, and the telescopic end of the telescopic rod 3441 is connected to the brush head 345. The spring 3443 is arranged around the telescopic rod 3441, and the limiting ring 3442 is arranged at the fixed end of the telescopic rod 3441. One end of the spring 3443 is connected to the limiting ring 3442, and the other end is connected to the brush head 345.

[0040] When the lower sponge 52 moves toward the side of the squeezing roller 4, it will drive the telescopic sleeve 344 to move in the direction of the squeezing roller 4. The movement of the telescopic sleeve 344 drives the rotating ring 342 to rotate, the deformation of the torsion spring 342 increases, and the elastic force formed continues to increase. When the elastic force formed by the torsion spring 342 is greater than the friction between the lower sponge 52 and the brush head 345, the rotating ring 343 rotates back under the elastic force of the torsion spring 342, so that the brush head 345 always maintains contact with the lower sponge 52.

[0041] The smearing components 34 are provided in plurality, and the smearing components 34 are inclined to a side away from the fixed frame 312. The lower end of the brush head 345 is provided with bristles, which are vertically arranged downward and abut against the top of the lower sponge 52. When the lower sponge 52 moves, it passes under the brush head 345, and the bristles brush the applied glue to the pit at the top of the lower sponge 52.

[0042] The spring 3443 is initially in a compressed state. When the bristles come into contact with the depression of the lower sponge 52 , the elastic force of the spring 3443 will squeeze the brush head 345 downward, increasing the contact area between the bristles and the depression of the lower sponge 52 , thereby applying the glue to the depression of the lower sponge 52 .

[0043] A driving motor 2 41 is disposed at one end of the squeezing roller 4 , and the squeezing roller 4 and the glue coating roller 32 are synchronously connected by a synchronous belt structure.

[0044] In this embodiment, if Figure 2 As shown, the conveying mechanism 2 drives the lower sponge 52 to move toward the squeezing roller 4, and the driving motor 2 41 drives the squeezing roller 4 to rotate counterclockwise, and simultaneously drives the glue coating roller 32 to rotate counterclockwise, and the glue coating roller 32 rotates counterclockwise to apply glue to the top of the lower sponge 52, and the glue coating component 34 brushes the glue just applied to the pits of the lower sponge 52.

[0045] An adjustment mechanism 6 is provided on one side of the side plate 11, and the adjustment mechanism 6 includes a support plate 1 61, a support plate 2 62, a rotating motor 63, a rotating column 64, a driving block 65, a limiting rod 66 and a supporting block 67. The support plate 1 61 and the support plate 2 62 are fixedly provided on the side plate 11, the rotating motor 63 is provided on the top end of the support plate 1 61, the rotating column 64 is provided on the output end of the rotating motor 63, the rotating column 64 is rotatably provided between the support plate 1 61 and the support plate 2 62, the driving block 65 is fixedly provided on the rotating column 64, the driving block 65 is cylindrical, and the upper end surface of the driving block 65 is an inclined surface, The column 64 is located at the center of the driving block 65, the limiting rod 66 is vertically slidably arranged on the support plate 1 61, the top of the driving block 65 is provided with a limiting groove 651, the limiting groove 651 is an annular groove, the bottom surface of the limiting groove 651 is parallel to the upper end surface of the driving block 65, the bottom end of the limiting rod 66 is horizontally rolled in the limiting groove of the driving block 65, the supporting block 67 is arranged at the top of the support plate 2 62, the bottom end of the driving block 65 is slidably connected with the top end of the supporting block 67, a connecting block 661 is arranged on the limiting rod 66, and is located below the support plate 1 61, and the connecting block 661 is fixedly connected to the mounting rod 33.

[0046] Start the rotating motor 63 to drive the rotating column 64 to rotate, thereby driving the driving block 65 to rotate. The limiting rod 66 moves up and down under the action of the inclined surface of the driving block 65, thereby driving the connecting block 661 and the mounting rod 33 to move up and down, and adjusting the up and down positions of the mounting rod 33, thereby adjusting the overall height of the coating assembly 34, so that the brush head 345 and the lower sponge 52 maintain a certain resistance force, preventing the bristles of the brush head 345 from being worn after long-term brushing, so that the resistance between the bristles and the lower sponge 52 gradually decreases, affecting the brushing effect after long-term use.

[0047] In order to better illustrate the processing of the noise reduction sponge adhesive device, this embodiment also discloses a processing method according to the noise reduction sponge adhesive device, which mainly includes the following steps:

[0048] S1, place the lower sponge 52 on the conveyor belt 24, the upper sponge 51 on the support roller 12, start the rotating motor 63, adjust the position of the limit rod 66, drive the mounting rod 33 and the coating assembly 34 to move up and down, adjust the distance between the coating assembly 34 and the lower sponge 52, and turn off the rotating motor 63 after adjustment;

[0049] S2, start the driving source 314 to rotate the circular plate 315, lift the blocking strip 313 upward, so that the glue can flow from the glue cylinder 31 to the glue coating roller 32, and turn off the driving source 314;

[0050] S3, start the conveying mechanism 2 to drive the lower layer of sponge 52 to move to the squeezing roller 4, start the second driving motor 41, drive the squeezing roller 4 and the glue coating roller 32 to rotate synchronously, and glue the sponge;

[0051] S4, when the sponge gluing is about to be completed, start the driving source 314, rotate the circular plate 315 to drive the blocking strip 313 to move downward, block the discharging block 311, and turn off the driving source 314; after the sponge gluing is completed, turn off the conveying mechanism 2 and the driving motor 2 41.

Claims

1. A noise reduction sponge adhesive device, characterized in that: It comprises a support (1), a conveying mechanism (2) arranged on the support (1), a gluing mechanism (3) arranged above the conveying mechanism (2), and a squeezing roller (4) arranged on one side of the gluing mechanism (3); the conveying mechanism (2) comprises a driving motor (21), a driving wheel (22), a driven wheel (23), and a conveyor belt (24); and the sponge to be pasted comprises an upper sponge (51) and a lower sponge (52); The glue coating mechanism (3) comprises a glue cylinder (31), a glue coating roller (32), a mounting rod (33) and a smearing assembly (34); the bracket (1) comprises a side plate (11), a support roller (12) and a support plate (13); the side plate (11) has two pieces; the support roller (12) is rotatably arranged between the two side plates (11); the support plate (13) is fixedly arranged between the two side plates (11); the glue cylinder (31) is arranged between the two side plates (11); a discharge block (311) is arranged at the bottom end of the glue cylinder (31); a fixed frame (312) is arranged at the bottom end of the discharge block (311); the glue coating roller (32) is rotatably arranged in the fixed frame (312); the mounting rod (33) is slidably arranged on the side plate (11) and is located on a side of the fixed frame (312) close to the squeezing roller (4); and the smearing assembly (34) is arranged on the mounting rod (33).

2. A noise reduction sponge adhesive device according to claim 1, characterized in that: The driving wheel (22) and the driven wheel (23) are both rotatably arranged between the two side plates (11), the conveyor belt (24) is arranged around the outer circumference of the driving wheel (22) and the driven wheel (23), and one end of the driving wheel (22) is arranged at the output end of the driving motor 1 (21).

3. A noise reduction sponge adhesive device according to claim 1, characterized in that: A vertical through groove (3111) is arranged inside the discharge block (311), a blocking strip (313) is slidably arranged inside the glue cylinder (31), a driving source (314) is arranged on one side of the side plate (11), a circular plate (315) is rotatably arranged at the output end of the driving source (314), an elliptical groove (3151) is arranged on one side of the circular plate (315), and one end of the blocking strip (313) is slidably arranged in the elliptical groove (3151).

4. A noise reduction sponge adhesive device according to claim 3, characterized in that: The smearing assembly (34) comprises a fixed ring (341), a torsion spring (342), a rotating ring (343), a telescopic kit (344) and a brush head (345); the fixed ring (341) is fixedly arranged on the mounting rod (33); the torsion spring (342) is sleeved on the mounting rod (33); the rotating ring (343) is rotatably arranged on the mounting rod (33); one end of the torsion spring (342) is connected to the fixed ring (341), and the other end is connected to the rotating ring (343).

5. A noise reduction sponge adhesive device according to claim 4, characterized in that: The telescopic kit (344) comprises a telescopic rod (3441), a limiting ring (3442) and a spring (3443); the fixed end of the telescopic rod (3441) is connected to the rotating ring (343); the telescopic end of the telescopic rod (3441) is connected to the brush head (345); the spring (3443) is arranged around the telescopic rod (3441); the limiting ring (3442) is arranged at the fixed end of the telescopic rod (3441); one end of the spring (3443) is connected to the limiting ring (3442), and the other end is connected to the brush head (345).

6. A noise reduction sponge adhesive device according to claim 5, characterized in that: A plurality of the smearing components (34) are provided, and the smearing components (34) are arranged obliquely toward a side away from the fixing frame (312).

7. The noise reduction sponge adhesive device according to claim 1, characterized in that: A second driving motor (41) is provided at one end of the squeezing roller (4), and the squeezing roller (4) and the glue coating roller (32) are synchronously connected by a synchronous belt structure.

8. The noise reduction sponge adhesive device according to claim 5, characterized in that: An adjustment mechanism (6) is arranged on one side of the side plate (11), and the adjustment mechanism (6) comprises a support plate 1 (61), a support plate 2 (62), a rotating motor (63), a rotating column (64), a driving block (65) and a limiting rod (66); the support plate 1 (61) and the support plate 2 (62) are arranged on the side plate (11); the rotating motor (63) is arranged at the top end of the support plate 1 (61); the rotating column (64) is arranged at the output end of the rotating motor (63); the driving block (65) is arranged on the rotating column (64); the upper end surface of the driving block (65) is an inclined surface; and the limiting rod (66) is arranged on the support plate 1 (61) in a vertically sliding manner.

9. A noise reduction sponge adhesive device according to claim 8, characterized in that: A connecting block (661) is provided on the limiting rod (66), and the connecting block (661) is connected to the mounting rod (33).

10. A processing method using the noise reduction sponge adhesive device according to claim 9, characterized in that: The steps include: S1, placing the lower sponge (52) on the conveyor belt (24), placing the upper sponge (51) on the support roller (12), starting the rotating motor (63), adjusting the distance between the coating assembly (34) and the lower sponge (52), and turning off the rotating motor (63) after the adjustment; S2, start the driving source (314) to rotate the circular plate (315), lift the blocking strip (313) upward, so that the glue can flow from the glue cylinder (31) to the glue coating roller (32), and turn off the driving source (314); S3, starting the conveying mechanism (2) to drive the lower layer of sponge (52) to move toward the squeezing roller (4), starting the second driving motor (41), driving the squeezing roller (4) and the glue coating roller (32) to rotate, and gluing the sponge; S4, when the sponge gluing is about to be completed, the driving source (314) is started, the circular plate (315) is rotated to drive the blocking strip (313) to move downward, blocking the discharging block (311), and the driving source (314) is turned off; S5, the sponge gluing is completed, and the conveying mechanism (2) and the second driving motor (41) are turned off.