Noise reduction composite sponge gluing device

Abstract

The noise reduction composite sponge gluing device comprises a supporting assembly and a gluing assembly, the gluing assembly is slidably connected with the top of the supporting assembly, the supporting assembly comprises a plurality of supports, the tops of the supports are fixedly connected with two baffles, sliding grooves are formed in the outer sides of the baffles, sliding plates are slidably connected into the sliding grooves, and the sliding plates are fixedly connected with the supporting assembly. According to the noise reduction composite sponge gluing device, the problems that at present, manual operation is mostly adopted during gluing, in the gluing process, the gluing amount is difficult to control, the phenomenon of uneven gluing can be generated, some places are many, some places are few, and the gluing efficiency is high are solved. And in order to enable the sponge to be firmly adhered after being glued, a worker often increases the gluing amount, so that the glue is wasted to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of sponge gluing, and specifically relates to a noise reduction composite sponge gluing device. Background Art

[0002] Noise reduction sponge is a material made of polyurethane sponge material and processed by special equipment to form a concave-convex wave shape. It is foamed through a complex process and has good sound absorption, noise reduction, sound insulation, and shock absorption effects. This material is filled with small voids and semi-open cell structures inside, which can absorb a large amount of incident sound wave energy, attenuate the sound waves, reduce the interference and reverberation of indoor reflected sound, and improve the purity of sound. Noise reduction sponge is a high-performance product of sound absorption and noise reduction materials and is widely used in industries and products that require noise reduction, such as recording studios, photography studios, performance halls, concert halls, theaters, cinemas, home theaters, music rooms, school classrooms, multi-functional stadiums, international conference halls, press release rooms, KTVs, hotels, guesthouses, lecture halls, etc. In addition, noise reduction sponge can also be produced in different colors, with concave-convex shapes such as wave type, pyramid, and gear, having strong sound absorption function, and can be further processed into finished products such as back gluing, composite fireproof fabric, composite waterproof PU film, and composite high-temperature resistant aluminum foil. It has the advantages of environmental protection, flame retardant and high temperature resistance, and good sound absorption and insulation effects, and can meet the needs of special industries.

[0003] During the processing of noise reduction sponge, it is necessary to paste the sponge after gluing. At present, most gluing operations are carried out manually. During the gluing process, it is very difficult to control the amount of glue applied, and the phenomenon of uneven gluing will occur, with more glue in some places and less in others. In order to make the sponge stick firmly after gluing, the staff often increases the amount of glue applied, resulting in a certain waste of glue.

[0004] Therefore, it is necessary to provide a noise reduction composite sponge gluing device that can control the amount of glue used to solve the above problems. Summary of the Invention

[0005] Based on the above problems existing in the prior art, the purpose of the present utility model is to provide a noise reduction composite sponge gluing device to solve the problems raised in the above background art.

[0006] The technical solution adopted by this application to solve its technical problems is as follows: A noise reduction composite sponge gluing device, comprising a support assembly and a gluing assembly. The gluing assembly is slidably connected to the top of the support assembly. The support assembly includes several brackets. Two baffles are fixedly connected to the top of the brackets. Sliding grooves are formed on the outer sides of the baffles. A sliding plate is slidably connected in the sliding grooves. The top of the sliding plate is fixedly connected to the gluing assembly. Two driving rollers are arranged between the two baffles. The two driving rollers are respectively arranged at both ends of the baffles. A roller shaft is fixedly connected inside the driving rollers. The roller shaft is rotatably connected to the baffles. One of the roller shafts is connected to a driving device. A conveyor belt is tensioned and connected between the two driving rollers. A number of placement holes are formed on the surface of the conveyor belt. The sizes of the placement holes match those of the convex parts of the noise reduction sponge;

[0007] The gluing assembly includes a glue storage assembly and a contact assembly. The glue storage assembly and the contact assembly are detachably connected. The glue storage assembly includes a glue tank. The glue tank is fixedly connected to the top of the sliding plate. A glue outlet is formed at the bottom of the glue tank;

[0008] Two sliding grooves are formed at the bottom of the glue tank. One end of a metal sheet located in the sliding grooves is fixedly connected to a moving device;

[0009] A first lifting assembly and a second lifting assembly are symmetrically arranged inside the glue tank. The first lifting assembly and the second lifting assembly have the same shape and structure. A pressing block is fixedly connected between the first lifting assembly and the second lifting assembly. The pressing block is located directly above the glue outlet.

[0010] Further, the sliding grooves are located on both sides of the glue outlet. The two ends of the sliding grooves are slidably connected to the metal sheets. A part of the metal sheets is inside the sliding grooves and another part is inside the glue tank.

[0011] Further, the moving device includes a convex strip and an annular member. One end of the convex strip is fixedly connected to the metal sheet. The convex strip is of a telescopic structure. The other end of the convex strip is fixedly connected to the annular member.

[0012] Further, the bottom of the pressing block is an arc part. The arc part is made of rubber material.

[0013] Further, the first lifting assembly is composed of a first adjusting member, a second adjusting member, a connecting rod, and an extension block. A sliding opening is formed on one side of the first adjusting member. The first adjusting member and the second adjusting member have the same shape and structure. The first adjusting member and the second adjusting member are oppositely arranged. The connecting rod is arranged between the first adjusting member and the second adjusting member and is inside the sliding opening. The connecting rod is slidably connected to the sliding opening. One end of the extension block is fixedly connected to the middle of the connecting rod. The other end of the extension block is connected to one end of the pressing block.

[0014] Furthermore, the first adjusting member includes a protective case, a slider is slidably connected inside the protective case, the slider is fixedly connected to a connecting rod, a spring is fixedly connected to the bottom of the slider, the spring is between the bottom inner wall of the protective case and the slider, an extension plate is fixedly connected to the bottom of the slider, the extension plate penetrates through the bottom of the protective case and is slidably connected to the protective case, and a plurality of positioning holes are formed in the extension plate.

[0015] Furthermore, the protective case is arranged at the bottom inner wall of the glue tank, and the extension plate penetrates through the glue tank and is slidably connected to the glue tank.

[0016] Furthermore, the contact assembly includes a first connecting member, a second connecting member, and a roller. The first connecting member and the second connecting member are devices with the same structure. The first connecting member is U-shaped, two connecting holes are respectively formed at both ends of the first connecting member, a through hole is formed in the middle of the first connecting member, the roller is arranged between the first connecting member and the second connecting member, and the roller is rotatably connected to the through hole.

[0017] Furthermore, the apertures of the connecting holes and the positioning holes are the same.

[0018] Furthermore, the diameter of the roller is the same as the diameter of the annular member, and the roller is rotatably connected to the annular member.

[0019] The beneficial effects of the present application are as follows: A noise-reducing composite sponge gluing device provided by the present application, by arranging a conveyor belt, placing the convex part of the noise-reducing sponge in the placement hole, and positioning the noise-reducing sponge with a moving device, during the entire gluing process, the displacement of the noise-reducing sponge can be prevented, and the gluing accuracy is improved; by arranging connecting holes on the first connecting member and positioning holes on the extension plate, the distance between the roller and the conveyor belt can be adjusted, various thicknesses of noise-reducing sponges can be adapted, and at the same time, the pressure for extruding the noise-reducing sponge can be adjusted, increasing or decreasing the glue application amount; by arranging a sliding plate, the gluing assembly can slide in the sliding groove, and the noise-reducing sponge on the conveyor belt can be evenly glued repeatedly. In summary, this device solves the technical problems that currently most gluing operations are carried out manually, it is very difficult to control the amount of glue during the gluing process, uneven gluing will occur, some places have more glue and some places have less glue, and in order to make the sponge stick firmly after gluing, the staff often increases the amount of glue applied, resulting in a certain waste of glue.

[0020] In addition to the purposes, features, and advantages described above, the present application has other purposes, features, and advantages. The following will refer to the drawings to make a further detailed description of the present application. Description of the Drawings

[0021] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation of this application.

[0022] In the drawings:

[0023] Figure 1 is the overall schematic diagram of this application;

[0024] Figure 2 is of Figure 1 the enlarged schematic diagram of area A in this application;

[0025] Figure 3 is the schematic diagram of the glue - applying assembly of this application;

[0026] Figure 4 is the schematic diagram of the glue - storage assembly of this application;

[0027] Figure 5 is of Figure 4 the enlarged schematic diagram of area B in this application;

[0028] Figure 6 is the schematic diagram of the glue tank 11 of this application;

[0029] Figure 7 is the schematic diagram of the first lifting assembly of this application;

[0030] Figure 8 is of Figure 6 the enlarged schematic diagram of area C in this application;

[0031] Figure 9 is the schematic diagram of the contact assembly of this application;

[0032] Figure 10 is the schematic diagram of the processing and placement of noise - reducing sponges of this application;

[0033] Figure 11 is the schematic diagram of the roller extrusion of this application;

[0034] Among them, the reference numerals in the drawings:

[0035] 1. Support component; 2. Glue application component; 3. Bracket; 4. Baffle; 41. Chute; 5. Slide plate; 6. Driving roller; 7. Roller shaft; 8. Conveyor belt; 81. Placing hole; 9. Glue storage component; 10. Contact component; 11. Glue tank; 111. Glue outlet; 112. Sliding groove; 12. First lifting component; 121. First adjusting part; 122. Second adjusting part; 1211. Protection shell; 1212. Slide block; 1213. Spring; 1214. Extension plate; 1215. Positioning hole; 1216. Sliding opening; 13. Connecting rod; 14. Extension block; 15. Pressing block; 151. Arc part; 16. Second lifting component; 17. Metal sheet; 18. Moving device; 181. Ridge; 182. Ring part; 19. First connecting part; 191. Connecting hole; 20. Second connecting part; 21. Through hole; 22. Roller. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will describe the present application in detail with reference to the drawings and in combination with the embodiments.

[0037] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0038] As Figure 1-11 shown, the present application provides a technical solution: a noise reduction composite sponge glue application device, including a support component 1 and a glue application component 2. The glue application component 2 is slidably connected to the top of the support component 1. The noise reduction sponge is placed on the support component 1. The glue application component 2 is moved to apply glue to the noise reduction sponge, or the position of the glue application component 2 can be fixed and the noise reduction sponge can be moved to apply glue.

[0039] As Figure 1-2As shown in the figure, the support assembly 1 includes several brackets 3. At the top of the brackets 3, two baffles 4 are fixedly connected. A chute 41 is opened on the outer side of the baffle 4. A sliding plate 5 is slidably connected in the chute 41. The top of the sliding plate 5 is fixedly connected to the glue-applying assembly 2. Two driving rollers 6 are arranged between the two baffles 4. The two driving rollers 6 are respectively arranged at both ends of the baffle 4. A roller shaft 7 is fixedly connected inside the driving roller 6. The roller shaft 7 is rotatably connected to the baffle 4. The rotation of the roller shaft 7 drives the driving roller 6 to rotate between the baffles 4. One of the roller shafts 7 is connected to a driving device to drive the driving roller 6 to rotate. A conveyor belt 8 is tensioned and connected between the two driving rollers 6. The rotation of the driving roller 6 drives the conveyor belt 8 to move. A number of placement holes 81 are opened on the surface of the conveyor belt 8. The sizes of the placement holes 81 match those of the convex portions of the noise-reducing sponge. When the noise-reducing sponge is placed on the conveyor belt 8, the convex portions of the noise-reducing sponge can be placed corresponding to the placement holes 81, increasing the friction force generated by the conveyor belt 8 on the noise-reducing sponge and improving the conveying efficiency of the conveyor belt 8.

[0040] As Figure 3 shown in the figure, the glue-applying assembly 2 includes a glue storage assembly 9 and a contact assembly 10. The glue storage assembly 9 and the contact assembly 10 are detachably connected, and the distance between the contact assembly 10 and the support assembly 1 can be adjusted to adapt to sponges of different thicknesses.

[0041] As Figure 4 、 5 shown in the figure, the glue storage assembly 9 includes a glue tank 11. The glue tank 11 is fixedly connected to the top of the sliding plate 5, so that the glue-applying assembly 2 can slide on the support assembly 1. A glue outlet 111 is opened at the bottom of the glue tank 11, and the glue flows out from the glue outlet 111.

[0042] Two sliding grooves 112 are opened at the bottom of the glue tank 11. The sliding grooves 112 are located on both sides of the glue outlet 111. Metal sheets 17 are slidably connected to both ends of the sliding grooves 112. A part of the metal sheet 17 is inside the sliding groove 112 and another part is inside the glue tank 11. At the bottom of one end of the metal sheet 17 located in the sliding groove 112, a moving device 18 is fixedly connected. By adjusting the moving device 18, the metal sheet 17 can be driven to slide in the sliding groove 112, thereby controlling the size of the glue outlet 111.

[0043] The moving device 18 includes a convex strip 181 and an annular member 182. One end of the convex strip 181 is fixedly connected to the metal sheet 17. The convex strip 181 is of a telescopic structure. The other end of the convex strip 181 is fixedly connected to the annular member 182.

[0044] As Figure 6As shown in the figure, a first lifting component 12 and a second lifting component 16 are symmetrically arranged inside the glue tank 11. The first lifting component 12 and the second lifting component 16 have the same shape and structure. A pressing block 15 is fixedly connected between the first lifting component 12 and the second lifting component 16. The pressing block 15 is located directly above the lower glue port 111. The bottom of the pressing block 15 is an arc portion 151, and the arc portion 151 is made of rubber material.

[0045] The first lifting component 12 is composed of a first adjusting member 121, a second adjusting member 122, a connecting rod 13, and an extension block 14. A sliding port 1216 is provided on one side of the first adjusting member 121. The first adjusting member 121 and the second adjusting member 122 have the same structural shape. The first adjusting member 121 and the second adjusting member 122 are oppositely arranged. The connecting rod 13 is arranged between the first adjusting member 121 and the second adjusting member 122 and is inside the sliding port 1216. The connecting rod 13 is slidably connected to the sliding port 1216. One end of the extension block 14 is fixedly connected to the middle of the connecting rod 13, and the other end of the extension block 14 is connected to one end of the pressing block 15.

[0046] As Figure 7 shown in the figure, the first adjusting member 121 includes a protective shell 1211. A slider 1212 is slidably connected inside the protective shell 1211. The slider 1212 is fixedly connected to the connecting rod 13. A spring 1213 is fixedly connected to the bottom of the slider 1212. The spring 1213 is between the bottom inner wall of the protective shell 1211 and the slider 1212. A extension plate 1214 is fixedly connected to the bottom of the slider 1212. The extension plate 1214 passes through the bottom of the protective shell 1211 and is slidably connected to the protective shell 1211. A number of positioning holes 1215 are provided on the extension plate 1214.

[0047] When the extension plate 1214 rises, it drives the slider 1212 to rise, driving the connecting rod 13, the extension block 14, and the pressing block 15 to rise. At this time, the spring 1213 generates an elastic force. When there is no upward force on the extension plate 1214, the elastic force generated by the spring 1213 will pull the connecting rod 13, the extension block 14, and the pressing block 15 back.

[0048] As Figure 8 shown in the figure, the protective shell 1211 is arranged at the bottom inner wall of the glue tank 11. The extension plate 1214 passes through the glue tank 11 and is slidably connected to the glue tank 11.

[0049] As Figure 9As shown, the contact assembly 10 includes a first connecting member 19, a second connecting member 20, and a roller 22. The first connecting member 19 and the second connecting member 20 are devices with the same structure. The first connecting member 19 is U-shaped. Two connecting holes 191 are respectively opened at both ends of the first connecting member 19, and a through hole 21 is opened in the middle of the first connecting member 19. The roller 22 is arranged between the first connecting member 19 and the second connecting member 20, and the roller 22 is rotatably connected to the through hole 21, so that the roller 22 can roll between the first connecting member 19 and the second connecting member 20.

[0050] The apertures of the connecting hole 191 and the positioning hole 1215 are the same. The glue storage assembly 9 and the contact assembly 10 can be connected together by means of screws or pins.

[0051] The diameter of the roller 22 is the same as that of the annular member 182. The roller 22 is rotatably connected to the annular member 182, and the roller 22 can rotate within the annular member 182.

[0052] Embodiment 1: Working Principle

[0053] As Figure 10 shown, the staff moves the skateboard 5 to one end of the baffle 4, and the glue application assembly 2 also follows and moves to one end of the support assembly 1. Place the noise reduction sponge in the middle position on the conveyor belt 8, close to the glue application assembly 2. Lift the roller 22 until the bottom of the first connecting member 19 is flush with the top of the noise reduction sponge. At this time, align the connecting hole 191 with the closest positioning hole 1215 and fasten it with screws. Move the moving device 18 to both sides of the noise reduction sponge to limit the noise reduction sponge. At the same time, the glue outlet 111 corresponds to the noise reduction sponge, and then pour glue into the glue tank 11.

[0054] Start the drive connected to the roller shaft 7, and the conveyor belt 8 starts to move towards the glue application assembly 2. The noise reduction sponge is compressed and passes under the roller 22. As Figure 11 shown, the compression of the noise reduction sponge generates an elastic force, which pushes the roller 22 upward. As a result, the first connecting member 19 and the second connecting member 20 exert forces on the first lifting assembly 12 and the second lifting assembly 16, causing the slider 1212 to move upward. The spring 1213 generates an elastic force, and the pressing block 15 moves out from the glue outlet 111. At this time, the glue drips from the glue outlet 111 onto the roller 22. The roller 22 increases the friction force on the noise reduction sponge through the glue. When the noise reduction sponge passes by the roller 22, the roller 22 starts to rotate, and the glue on the roller 22 is squeezed by the roller 22 and evenly adheres to the surface of the noise reduction sponge.

[0055] When the noise reduction sponge is finished being coated with glue, the roller 22 is not affected by the elastic force, and the spring 1213 pulls the slider 1212 back. At this time, the pressing block 15 returns to the glue outlet 111 and blocks the glue outlet 111, so that the glue in the glue tank 11 no longer flows down.

[0056] The device is provided with a conveyor belt 8. The convex part of the noise reduction sponge is placed in the placement hole 81, and the mobile device 18 is used to position the noise reduction sponge, so that during the entire gluing process, the displacement of the noise reduction sponge can be prevented, and the accuracy of gluing is improved.

[0057] Embodiment 2: The noise reduction sponge needs to increase the amount of glue applied

[0058] In the embodiment, the roller 22 is lifted until the bottom of the first connecting piece 19 is flush with the top of the noise reduction sponge. At this time, the connecting hole 191 is aligned with the positioning hole 1215 closest to it, and then the roller 22 is vertically moved downward by the hole position of one or two positioning holes 1215 and fastened with screws. At this time, since the distance between the roller 22 and the conveyor belt 8 is reduced, when the roller 22 squeezes the noise reduction sponge, the pressure generated by the squeezing of the noise reduction sponge becomes larger, and thus this pressure is converted into elastic force on the spring 1213, and the pressing block 15 moves away from the glue outlet 111, so that the amount of glue applied increases.

[0059] By providing the connecting hole 191 on the first connecting piece 19 and the positioning hole 1215 on the extension plate 1214, the device can adjust the distance between the roller 22 and the conveyor belt 8, can adapt to noise reduction sponges of various thicknesses, and can simultaneously adjust the pressure for squeezing the noise reduction sponge, increasing or decreasing the amount of glue applied.

[0060] Embodiment 3: Repeatedly apply glue to a single noise reduction sponge

[0061] Place a whole noise reduction sponge on the conveyor belt 8, adjust the mobile device 18 to limit the noise reduction sponge according to the size of the noise reduction sponge, adjust the distance between the roller 22 and the conveyor belt 8 according to the processing requirements, and repeatedly move the gluing assembly 2 to apply glue. Manually control the gluing assembly 2 to slide in the chute 41. When the roller 22 presses on the noise reduction sponge, the pressing block 15 rises, and the glue droplets flowing out of the glue outlet 111 fall onto the roller 22 to apply glue to the surface of the noise reduction sponge.

[0062] By providing the sliding plate 5, the device enables the gluing assembly 2 to slide in the chute 41, and can repeatedly and evenly apply glue to the noise reduction sponge on the conveyor belt 8.

[0063] In summary, the device solves the technical problems that most gluing operations are currently carried out manually. During the gluing process, it is very difficult to control the amount of glue applied, resulting in uneven gluing, with more glue in some places and less in others. In order to make the sponge stick firmly after gluing, the staff often increases the amount of glue applied, resulting in a certain waste of glue.

[0064] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A noise reduction composite sponge gluing device, comprising a supporting component (1) and a gluing component (2), characterized in that: The gluing component (2) is slidably connected to the top of the supporting component (1), and the supporting component (1) comprises a plurality of brackets (3). The top of the bracket (3) is fixedly connected to two baffles (4), and a slide groove (41) is provided on the outer side of the baffle (4). A slide plate (5) is slidably connected in the slide groove (41), and the top of the slide plate (5) is fixedly connected to the gluing component (2). Two transmission rollers (6) are arranged between the two baffles (4), and the two transmission rollers (6) are respectively arranged at the two ends of the baffle (4). A roller shaft (7) is fixedly connected in the transmission roller (6), and the roller shaft (7) is rotatably connected to the baffle (4). One of the roller shafts (7) is connected to the driving device. The two transmission rollers (6) are tensioned and connected to the conveyor belt (8), and a plurality of placement holes (81) are provided on the surface of the conveyor belt (8), and the placement holes (81) match the size of the raised part of the noise reduction sponge. The glue coating component (2) comprises a glue storage component (9) and a contact component (10), wherein the glue storage component (9) and the contact component (10) are detachably connected, and the glue storage component (9) comprises a glue box (11), wherein the glue box (11) is fixedly connected to the top of the slide plate (5), and a glue outlet (111) is provided at the bottom of the glue box (11); The bottom of the glue box (11) is provided with two sliding grooves (112), and a moving device (18) is fixedly connected to the bottom of one end of the metal sheet (17) located in the sliding groove (112); A first lifting assembly (12) and a second lifting assembly (16) are axially symmetrically arranged in the glue box (11); the first lifting assembly (12) and the second lifting assembly (16) have the same shape and structure; a pressing block (15) is fixedly connected between the first lifting assembly (12) and the second lifting assembly (16); and the pressing block (15) is located directly above the lower glue port (111).

2. A noise reduction composite sponge gluing device according to claim 1, characterized in that: The sliding groove (112) is located on both sides of the lower glue port (111), and the two ends of the sliding groove (112) are slidably connected to the metal sheet (17), and a part of the metal sheet (17) is in the sliding groove (112) and the other part is in the glue box (11).

3. The noise reduction composite sponge gluing device according to claim 1, characterized in that: The moving device (18) comprises a convex strip (181) and an annular member (182); one end of the convex strip (181) is fixedly connected to the metal sheet (17); the convex strip (181) is a retractable structure; and the other end of the convex strip (181) is fixedly connected to the annular member (182).

4. The noise reduction composite sponge gluing device according to claim 1, characterized in that: The bottom of the pressing block (15) is a circular arc portion (151), and the circular arc portion (151) is made of rubber material.

5. The noise reduction composite sponge gluing device according to claim 4, characterized in that: The first lifting assembly (12) is composed of a first adjusting member (121), a second adjusting member (122), a connecting rod (13), and an extension block (14); a sliding opening (1216) is provided on one side of the first adjusting member (121); the first adjusting member (121) and the second adjusting member (122) have the same structure and shape; the first adjusting member (121) and the second adjusting member (122) are arranged opposite to each other; the connecting rod (13) is arranged between the first adjusting member (121) and the second adjusting member (122) and in the sliding opening (1216); the connecting rod (13) is slidably connected to the sliding opening (1216); one end of the extension block (14) is fixedly connected to the middle part of the connecting rod (13); and the other end of the extension block (14) is connected to one end of the pressing block (15).

6. A noise reduction composite sponge gluing device according to claim 5, characterized in that: The first adjusting member (121) comprises a protective shell (1211), a slider (1212) is slidably connected inside the protective shell (1211), the slider (1212) is fixedly connected to the connecting rod (13), a spring (1213) is fixedly connected to the bottom of the slider (1212), the spring (1213) is between the bottom of the inner wall of the protective shell (1211) and the slider (1212), an extension plate (1214) is fixedly connected to the bottom of the slider (1212), the extension plate (1214) passes through the bottom of the protective shell (1211) and is slidably connected to the protective shell (1211), and a plurality of positioning holes (1215) are provided on the extension plate (1214).

7. A noise reduction composite sponge gluing device according to claim 6, characterized in that: The protective shell (1211) is arranged at the bottom of the inner wall of the glue box (11), and the extension plate (1214) penetrates the glue box (11) and is slidably connected to the glue box (11).

8. The noise reduction composite sponge gluing device according to claim 1, characterized in that: The contact assembly (10) comprises a first connecting member (19), a second connecting member (20), and a roller (22); the first connecting member (19) and the second connecting member (20) are devices with the same structure; the first connecting member (19) is U-shaped; two connecting holes (191) are respectively provided at two ends of the first connecting member (19); a through hole (21) is provided in the middle of the first connecting member (19); the roller (22) is arranged between the first connecting member (19) and the second connecting member (20); and the roller (22) is rotatably connected to the through hole (21).

9. The noise reduction composite sponge gluing device according to claim 8, characterized in that: The connection hole (191) and the positioning hole (1215) have the same hole diameter.

10. The noise reduction composite sponge gluing device according to claim 9, characterized in that: The diameter of the roller (22) is consistent with the diameter of the ring member (182), and the roller (22) is rotatably connected to the ring member (182).

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