Horn cavity sealing dustproof buffer damping assembly and die cutting module thereof
Patent Information
- Application Number
- CN202522489334.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-24
AI Technical Summary
然而对于在粘接部位需要有额外安装定位手柄和安装孔的组件，安装定位手柄部件的整体尺寸比防尘网、减震泡棉的尺寸大，若仍按普通模切方式生产，势必会造成防尘网、泡棉材料的极大浪费，使产品整体成本大幅提升
[0006]This utility model adopts the above-mentioned structure and equipment. On the one hand, according to the different dimensions of each layer of material in the component and the different raw material costs, different timing intervals are used for die cutting and then assembly, which reduces the waste of high-cost materials, improves their utilization rate, and achieves an overall cost reduction while taking into account production efficiency. On the other hand, the die cutting of the metal dustproof net uses a mold base plate with high hardness and is carried out under a certain temperature, which can improve the die cutting accuracy of the dustproof net and accelerate the fusion of the dustproof net edge with the double-sided adhesive, thereby avoiding edge fraying and improving the overall component yield.
Smart Images
Figure CN224856526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precision die-cutting component production technology, specifically to a speaker cavity sealing, dustproof, buffering, and shock-absorbing component and its die-cutting module. Background Technology
[0002] The speaker cavity of electronic products such as mobile phones, tablets, and headphones typically requires a dustproof mesh. Most existing dustproof mesh assemblies are simply dustproof mesh with double-sided adhesive, lacking cushioning and shock absorption. While some dustproof mesh assemblies have a cushioning layer, for products where the dustproof mesh size is comparable to the overall bonding size of the assembly, production can proceed without separate semi-finished product assembly. However, for assemblies requiring additional positioning handles and mounting holes at the bonding area, the overall size of the positioning handle component is larger than the dustproof mesh and shock-absorbing foam. If conventional die-cutting methods are used, it will inevitably lead to significant waste of dustproof mesh and foam materials, substantially increasing the overall product cost. Furthermore, conventional die-cutting methods can cause the dustproof mesh to fray at the edges, resulting in defective products and a low product yield. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide a speaker cavity sealing, dustproof, buffering and shock-absorbing component and its die-cutting module.
[0004] The technical solution adopted in this utility model is: A speaker cavity sealing, dustproofing, and vibration damping assembly includes a hollow annular foam layer in the middle and a first double-sided adhesive layer and a second double-sided adhesive layer attached to both sides thereon. The first double-sided adhesive layer has the same outline shape as the foam layer, and a dustproof mesh with the same outline shape is laminated to the outer surface of the first double-sided adhesive layer. The second double-sided adhesive layer has a similar outline shape to the foam layer, and a PET substrate layer, a third double-sided adhesive layer, and a finished release film layer are sequentially laminated to the outer surface of the second double-sided adhesive layer. The PET substrate layer and the third double-sided adhesive layer have the same shape and an inner frame outline that is identical to that of the second double-sided adhesive layer. Handles protruding from the outer outline of the second double-sided adhesive layer are provided at both ends of the outer outlines of the PET substrate layer and the third double-sided adhesive layer, and mounting holes are provided on the handles. The finished release film layer completely covers the area where the third double-sided adhesive layer is located.
[0005] This utility model also provides a die-cutting module for the above-mentioned speaker cavity sealing, dustproofing, and vibration damping component, including a die-cutting module for producing semi-finished product A and semi-finished product B. Semi-finished product A includes a foam layer, a first double-sided adhesive layer, and a dustproof mesh; semi-finished product B includes a second double-sided adhesive layer, a PET substrate layer, a third double-sided adhesive layer, and a finished product release film layer; wherein: the die-cutting module for producing semi-finished product A includes a first flat die-cutting module, a second flat die-cutting module, and a third flat die-cutting module; the die-cutting module for producing semi-finished product B includes a fourth flat die-cutting module, a fifth flat die-cutting module, a sixth flat die-cutting module, and a seventh flat die-cutting module; The upper die of the first flat die-cutting die assembly is provided with a first socket cutting edge, a first inner contour cutting edge, and a first positioning post corresponding to the first socket cutting edge. The upper die of the second flat die-cutting die assembly is provided with a second positioning post corresponding to the first positioning hole cutting edge, and is provided with a first positioning hole cutting edge located inward and a first outer contour line cutting edge corresponding to the position and number of the first inner contour line cutting edge. The lower die of the third flat die-cutting die assembly is provided with a third positioning post corresponding to the first positioning hole cutting edge, and is provided with a first straight cutting edge and two first edge line cutting edges. The upper die of the fourth flat die-cutting die assembly is provided with a second set of positioning hole cutting edge, a fourth set of positioning post corresponding to the second set of positioning hole cutting edge, a preliminary outline cutting edge in a roughly U-shape, and two second edge line cutting edges. The upper blade of the fifth flat die-cutting roller group is provided with a fifth positioning post corresponding to the second positioning hole blade, and is provided with a second positioning hole blade and two third edge line blades located inward, several second inner contour line blades, mounting hole blades distributed at both ends of each second inner contour line blade, and several second outer contour line blades corresponding to the number of positions of the second inner contour line blades. The second outer contour line blades are spaced one step away from the second inner contour line blades and the mounting hole blades. The second outer contour line blades have handle-shaped blades that protrude towards both ends. The die of the sixth flat die-cutting die set is provided with a sixth set of positioning posts corresponding to the second set of positioning hole cutting edges, and is provided with a third positioning hole cutting edge and two fourth edge line cutting edges located inward; The die of the seventh flat die-cutting die assembly is provided with a seventh positioning post corresponding to the second positioning hole cutting edge, and is also provided with a second straight cutting edge.
[0006] This utility model adopts the above-mentioned structure and equipment. On the one hand, according to the different dimensions of each layer of material in the component and the different raw material costs, different timing intervals are used for die cutting and then assembly, which reduces the waste of high-cost materials, improves their utilization rate, and achieves an overall cost reduction while taking into account production efficiency. On the other hand, the die cutting of the metal dustproof net uses a mold base plate with high hardness and is carried out under a certain temperature, which can improve the die cutting accuracy of the dustproof net and accelerate the fusion of the dustproof net edge with the double-sided adhesive, thereby avoiding edge fraying and improving the overall component yield. Attached Figure Description
[0007] Figure 1 This is an exploded structural diagram of the speaker cavity sealing, dustproofing, and vibration damping component of this utility model; Figure 1-1 , Figure 1-2 These are exploded structural diagrams of semi-finished product A and semi-finished product B in this utility model. Figure 2 This is a schematic diagram of the material layers and an overlay diagram of the die-cutting effect in the production of semi-finished product A in this utility model; Figure 2-1 , Figure 2-2 , Figure 2-3 These are the die-cutting blades and die-cutting effect diagrams of the three sets of flat die-cutting modules used to produce semi-finished product A. Figure 3 This is a schematic diagram of the material layers and an overlay diagram of the die-cutting effect in the production of semi-finished product B in this utility model; Figure 3-1 , Figure 3-2 , Figure 3-3 , Figure 3-4 These are the die-cutting blades and die-cutting effect diagrams of the four sets of flat die-cutting modules used to produce semi-finished product B. Detailed Implementation
[0008] like Figure 1As shown, this utility model describes a speaker cavity sealing, dustproofing, and vibration damping component. The component includes a hollow annular foam layer 1 located in the middle and a first double-sided adhesive layer 11 and a second double-sided adhesive layer 12 attached to its two sides. The outline shape of the first double-sided adhesive layer 11 is the same as that of the foam layer 1, and a dustproof mesh 2 with the same outline shape is laminated on the outer surface of the first double-sided adhesive layer 11. The outline shape of the second double-sided adhesive layer 12 is similar to that of the foam layer 1, and a PET substrate layer 3, a third double-sided adhesive layer 13, and a finished release film layer 4 are sequentially laminated on the outer surface of the second double-sided adhesive layer 12. The PET substrate layer 3 and the third double-sided adhesive layer 13 have the same shape and both have an inner frame outline that is the same as that of the inner frame outline of the second double-sided adhesive layer 12. The outer contours of the PET substrate layer 3 and the third double-sided adhesive layer 13 are provided with handle portions 31 that protrude from the outer contour of the second double-sided adhesive layer 12, and the handle portions 31 are provided with mounting holes 310. The finished release film layer 4 completely covers the area where the third double-sided adhesive layer 13 is located.
[0009] This utility model also provides a manufacturing process for the above-mentioned speaker cavity sealing, dustproof and vibration damping component. The manufacturing process includes producing semi-finished product A and semi-finished product B respectively. Semi-finished product A includes a foam layer 1, a first double-sided adhesive layer 11 and a dustproof mesh 2. Semi-finished product B includes a second double-sided adhesive layer 12, a PET substrate layer 3, a third double-sided adhesive layer 13 and a finished release film layer 4. Step a, producing semi-finished product A: Foam strip P1, first double-sided adhesive strip J1, and first transition release film strip G1 are sequentially laminated onto the first base film strip T1, and a masking film strip Z1 is laminated onto the first base film strip T1 on both sides of the foam strip P1; the first die-cutting is performed by the first flat die-cutting die M1, the upper die of the first flat die-cutting die M1 is provided with a first positioning hole blade R101, a first inner contour line blade R102, and a first positioning post R103. The blade enters from above the composite strip, the first positioning hole blade R101 cuts through the two sides of the first base film strip T1 of the composite strip and forms the first positioning hole M101, and the first inner contour line blade R102 cuts through the first transition release film strip G1 from top to bottom. 1. A first double-sided adhesive tape J1, a foam tape P1, and a first backing film tape T1 form the inner ring outline M102 of the foam layer 1 and the first double-sided adhesive layer 11. The inner frame waste and hole waste formed by cutting through are directly removed from below; then the waste of the first transition release film tape G1 is removed from above; then a dustproof mesh tape W1 is laminated onto the exposed first double-sided adhesive tape J1 containing the inner ring outline; the widths of the foam tape P1, the first double-sided adhesive tape J1, and the dustproof mesh tape W1 are the same and all smaller than the width of the first backing film tape T1, and the two side edges are aligned. The two sides of the first backing film tape T1 are exposed above the dustproof mesh tape W1; the width of the first backing film tape T1 is greater than the sum of the widths of the foam tape P1 and the two side shielding film tapes Z1, and they are all centered and aligned for lamination; Then, a second die-cutting is performed using the second flat die-cutting module M2. The upper die of the second flat die-cutting module M2 is equipped with a second positioning post R201 corresponding to the first positioning hole M101, and also has a first positioning hole blade R202 positioned inward and a first outer contour blade R203 corresponding to the position and number of the first inner contour blade R102. The first positioning hole blade R202 cuts through the shielding film strip Z1 and the first bottom support film strip T1 from above to form the first positioning hole M202 (hole waste is directly discharged from below). The first outer contour blade R203 cuts through the dustproof mesh strip W1, the first double-sided adhesive strip JZ, and the foam strip P1 from top to bottom, and partially cuts to the first bottom support film strip T1, forming... The outer contour lines of the dustproof net, the first double-sided adhesive layer, and the foam layer are formed as M203. Then, the waste materials of the dustproof net, the first double-sided adhesive layer, and the foam layer other than the outer contour lines are removed. Then, the second transition release film material G2 is laminated on top. At this time, the composite material strips are arranged from bottom to top as follows: the first bottom support film material T1, the hollow annular foam layer 1, the hollow annular first double-sided adhesive layer 11, the dustproof net 2, and the second transition release film material G1. The hollow annular foam layer 1 has shielding film material strips Z1 arranged on both sides. The shielding film material strip Z1 and the first bottom support film material strip T1 are formed with first positioning holes M202. The first bottom support film material strip T1 is also formed with first fitting holes M101. Then, a third die-cutting is performed using the third flat die-cutting module M3. The lower die of the third flat die-cutting module M3 is provided with a third positioning post R301 corresponding to the first positioning hole M101, and is provided with a first straight cutting edge R302 and two first edge cutting edges R303. The third die-cutting starts from the first bottom film strip T1 below the material strip and moves upward. The first straight cutting edge R302 and the two first edge cutting edges R303 cut through the first bottom film strip T1 and partially cut to the second transition release film strip G2. The first edge cutting edge R303 cuts the first bottom support film strip T1 into rectangular first bottom support film blocks T11. Each first bottom support film block T11 forms a set of equally spaced semi-finished products A. On both sides of the semi-finished products A, there are also shielding film blocks Z11. The shielding film blocks Z11 are provided with first positioning holes M202. Then, the edge waste on both sides of the first bottom support film strip T1 is removed. At this time, the semi-finished products A are protected between the first bottom support film blocks T11 and the second transition release film strip G2. Then, it is cut along the width direction of the second transition release film strip G2. Step b, producing semi-finished product B: The third transition release film strip G3, the second double-sided adhesive strip J2, and the fourth transition release film strip G4 are sequentially laminated onto the second base film strip T2. A fourth die-cutting is performed using the fourth flat die-cutting module M4. The upper die of the fourth flat die-cutting module M4 is equipped with a second positioning hole cutting edge R401, a fourth positioning post R402 corresponding to the second positioning hole cutting edge R401, a roughly U-shaped preliminary outline cutting edge R403, and two second edge cutting edges R404. The cutting edge enters from above the laminated strip. The second positioning hole cutting edge R401 cuts through the third transition release film strip G3 and the two sides of the second base film strip T2 to form the second positioning hole M401; the two second edge cutting edges R404 cut through the third transition release film strip G3. The edges on both sides are partially cut to the second bottom support film strip T2, forming a continuous second edge contour line M404 on both sides of the third transition release film strip G3; the blades on both sides of the roughly U-shaped preliminary contour line R403 are concave and convex curves, which successively cut through the fourth transition release film strip G4, the second double-sided adhesive strip J2, and the third transition release film strip G3, partially cutting to the second bottom support film strip T2, forming a continuous U-shaped preliminary contour line M403 connected at the ends; then the waste material of the second double-sided adhesive strip between adjacent U-shaped preliminary contour lines and all the waste material of the fourth transition release film strip G4 are removed, and then PET base material strip P2, the third double-sided adhesive strip J3, and the fifth transition release film strip G5 are sequentially laminated on the remaining second double-sided adhesive strip J2; Then, the fifth die-cutting is performed by the fifth flat die-cutting roller group M5. The upper die-cutting roller of the fifth flat die-cutting roller group M5 is provided with a fifth positioning post R501 corresponding to the second positioning hole M401, and is provided with a second positioning hole blade R502 located inward, two third edge line blades R503, several second inner contour line blades R504, mounting hole blades R505 distributed at both ends of each second inner contour line blade R504, and several second outer contour line blades R506 corresponding to the number and position of the second inner contour line blades R504. The second outer contour line blades R506 are spaced apart from the second inner contour line blades R504 and the mounting hole blades R505 by one step distance. The second outer contour line blades R506 have handle blades R507 protruding to both ends. In this process, the second positioning hole blade R502 cuts through the third transition release film strip G3 and the second bottom support film strip T2 from above to form the second positioning hole M502 (hole waste is directly discharged from below), and the second positioning hole M502 corresponds to the position of the first positioning hole M202 on the first bottom support film strip T1 in step a; the two third edge line blades R503 cut halfway from above to the third transition release film strip G3 respectively and form continuous pre-cut lines M503 on both sides of the third transition release film strip G3; The second inner contour line cutting edge R504 and the mounting hole cutting edge R505 cut through the fifth transition release film strip G5, the third double-sided adhesive strip J3, the PET base material strip P2, the second double-sided adhesive strip J2, the third transition release film strip G3 and the second bottom support film strip T2 from top to bottom, and remove the waste material inside the frame and the hole from the bottom. The same shape of inner frame contour line M504 and mounting hole contour line M505 are formed on the third double-sided adhesive strip J3, the PET base material strip P2 and the second double-sided adhesive strip J2, respectively. The second outer contour blade R506 cuts through the fifth transition release film strip G5, the third double-sided adhesive strip J3, the PET base material strip P2, and the second double-sided adhesive strip J2 from top to bottom, and partially cuts the third transition release film strip G3. Outer frame contour lines M506 of the same shape are formed on the third double-sided adhesive strip J3, the PET base material strip P2, and the second double-sided adhesive strip J2, respectively. The outer frame contour lines of the third double-sided adhesive strip J3 and the PET base material strip P2 include the handle portion contour line M507, which surrounds the mounting hole contour line M505 (i.e., the handle). The mounting hole is formed on the handle; the root of the handle profile line M507 formed by the blade R507 of the handle intersects with the concave and convex curve profile lines on both sides of the U-shaped preliminary profile line M403 on the second double-sided adhesive tape J2 during the fourth die-cut; that is, because the second double-sided adhesive tape has formed part of the outer edge profile line during the fourth die-cut, the intersection of this part of the outer edge profile line with the outer frame profile line formed by the fifth die-cut forms the complete profile line of the second double-sided adhesive layer, and the second double-sided adhesive layer 12 does not form the handle; only the PET substrate layer 3 and the third double-sided adhesive tape 13 form the handle 31 and the mounting hole 310; Then, the waste from the fifth transition release film strip G5, the waste from the third double-sided adhesive strip J3, the waste from the PET base material strip P2, and the waste from the second double-sided adhesive strip J2 outside the frame are removed; including the localized second double-sided adhesive waste and the fifth transition release film waste within the outline of the outer frame, which are removed by the waste removal tape. At this point, the composite strips, from bottom to top, consist of the second support film strip T2, the third transition release film strip G3, the formed second double-sided adhesive layer 12, the PET substrate layer 3, and the third double-sided adhesive layer 13. Then, the finished release film strip L1 and the process protection film strip B1 are sequentially laminated onto the third double-sided adhesive layer 13. The composite strip is then flipped over, with the second support film strip T2 facing upwards, and undergoes a sixth die-cutting by the sixth flat die-cutting die unit M6. The die of the sixth flat die-cutting die unit M6 is equipped with a sixth positioning post R601 corresponding to the second positioning hole M401, and also has a third positioning hole cutting edge R602 positioned inwards and two fourth edge line cutting edges R603. R602 cuts through the second bottom support film strip T2, the third transition release film strip G3, the finished release film strip L1, and the process protection film strip B1 from top to bottom, forming a third positioning hole M602 on the finished release film strip L1 (the third positioning hole M602 is used to align with the first positioning hole M202 during assembly with the semi-finished product A); the fourth edge line blade R603 completely cuts off the edge of the third transition release film strip G3 and the edge of the finished release film strip L1 and partially cuts to the process protection film strip B1; then the waste from the second bottom support film strip T2 and the third transition release film strip G3 is removed, and the waste containing the third positioning hole M602 on the edge of the finished release film strip B1 is not excluded; At this point, the second double-sided adhesive layer 12 is exposed, and then the sixth transition release film strip G6 is laminated onto the second double-sided adhesive layer 12. Then, a seventh die-cutting is performed by the seventh flat die-cutting module M7. The die of the seventh flat die-cutting module M7 is provided with a seventh positioning post R701 corresponding to the second positioning hole M401, and a second straight cutting blade R702. The second straight cutting blade R702 cuts through the sixth transition release film strip G6, partially cutting through the finished release film strip L1 to the process protection film strip B1, completely cutting the sixth release film strip along its width. The transition release film material belt G6 forms a second straight cutting line M702 on the finished release film material belt L1, which intersects with the edge line cut out by the fourth edge line blade R603, but the finished release film material belt L1 is not cut. At this time, a semi-finished product B is formed on the process protection film material belt B1. The semi-finished product B includes the finished release film material belt L1, the third double-sided adhesive layer 13, the PET substrate layer 3, and the second double-sided adhesive layer 12 in sequence. The surface of the second double-sided adhesive layer 12 is covered by the sixth transition release film G61 and is wound up using the process protection film material belt B1. Step c: Assemble semi-finished product A and semi-finished product B. Peel off the first support film block T11 on semi-finished product A to expose the foam layer 1. Peel off the sixth transition release film G61 on semi-finished product B to expose the second double-sided adhesive layer 12. Use automatic visual bonding to align the first positioning hole M202 on the masking film block Z11 of each group of semi-finished products A with the third positioning hole M602 on the edge of the finished product release film strip L1, so that the hollow annular foam layer 1 on semi-finished product A and the second double-sided adhesive layer 12 on semi-finished product B are aligned and bonded, thus completing the assembly.
[0010] The product is cut into sheets along the width direction of the finished release film strip L1 and shipped in packaging. When using, the individual product is peeled off from the finished release film and then installed and bonded to the speaker element by aligning the mounting holes of the handles 31 at both ends of the third double-sided adhesive layer 13 and the PET substrate layer 3.
[0011] In this embodiment, in step A, the foam tape P1, the first double-sided adhesive tape J1, and the dustproof mesh tape W1, which are the main materials, have the same width. The width of the first backing film tape T1 is greater than the sum of the widths of the foam tape P1 and the two side shielding film tapes Z1, and they are all centered and aligned for lamination. In step B, the widths of the second double-sided adhesive tape J2, the PET base material tape P2, and the third double-sided adhesive tape J3, which are the main materials, are the same and the same as the width of the foam tape P3. The width of the finished release film tape L1 is greater than the width of the third double-sided adhesive tape J3. The width of the auxiliary material process protection film tape B1 is greater than the width of the finished release film tape L1. The widths of the auxiliary materials second backing film tape T2 and third transition release film tape G3 are greater than the width of the process protection film tape B1, and they are also centered and aligned for lamination.
[0012] In step a, the lower die of the second flat die-cutting module M2 is made of stainless steel, and its temperature during die-cutting is 40℃-80℃. Making the die-cutting base plate of stainless steel increases the hardness of the die plate, reduces springback during punching, and accurately cuts the metal dustproof mesh strip. Simultaneously, the die base plate maintains a certain temperature to ensure rapid fusion and sealing between the edge of the die-cut dustproof mesh and the first double-sided adhesive layer, preventing fraying at the edges of the dustproof mesh. This improves product yield, reduces manual labor time, and lowers production costs.
[0013] In step a, the pitch between the first positioning holes M101 is smaller than the pitch between the second positioning holes M401 in step b. That is, the two semi-finished components are die-cut using different pitches. The first double-sided adhesive layer 12 of the handleless part is die-cut with a short pitch, while the third double-sided adhesive layer 13 and the PET substrate layer 3 of the handle part 31 are die-cut with a long pitch. This reduces waste of the first double-sided adhesive tape J1, foam tape P1, and metal dustproof mesh tape W1, improves raw material utilization, and lowers costs. In particular, foam and metal dustproof mesh are relatively expensive; overall die-cutting production would inevitably result in significant waste of dustproof mesh tape and foam tape, leading to higher overall product costs and weaker market competitiveness.
[0014] During the assembly and bonding process in step c, maintain bonding pressure for more than 10 seconds.
[0015] This utility model adopts the above-mentioned structure and process. On the one hand, according to the different dimensions of each layer of material in the component and the different raw material costs, different timing intervals are used for die cutting and then assembly, which reduces the waste of high-cost materials, improves their utilization rate, and achieves an overall cost reduction while taking into account production efficiency. On the other hand, the die cutting of the metal dustproof net uses a mold base plate with high hardness and is carried out under a certain temperature, which can improve the die cutting accuracy of the dustproof net and accelerate the fusion of the dustproof net edge with the double-sided adhesive, thereby avoiding edge fraying and improving the overall component yield.
[0016] The above embodiments are merely exemplary implementations used to illustrate the principles of this utility model; however, this utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.
Claims
1. A speaker cavity sealing, dustproofing, and vibration damping assembly, characterized in that: The component includes a hollow annular foam layer in the middle and a first double-sided adhesive layer and a second double-sided adhesive layer attached to both sides thereon. The first double-sided adhesive layer has the same outline shape as the foam layer, and a dustproof mesh with the same outline shape is laminated on the outer surface of the first double-sided adhesive layer. The second double-sided adhesive layer has a similar outline shape to the foam layer, and a PET substrate layer, a third double-sided adhesive layer, and a finished release film layer are sequentially laminated on the outer surface of the second double-sided adhesive layer. The PET substrate layer and the third double-sided adhesive layer have the same shape and an inner frame outline that is the same as the inner frame outline of the second double-sided adhesive layer. The outer contours of the PET substrate layer and the third double-sided adhesive layer are provided with handles that protrude from the outer contour of the second double-sided adhesive layer, and mounting holes are provided on the handles. The finished release film layer completely covers the area where the third double-sided adhesive layer is located.
2. The die-cutting module of the speaker cavity sealing, dustproofing, and vibration damping assembly as described in claim 1, comprising a die-cutting module for producing semi-finished product A and semi-finished product B, wherein semi-finished product A comprises a foam layer, a first double-sided adhesive layer, and a dustproof mesh; and semi-finished product B comprises a second double-sided adhesive layer, a PET substrate layer, a third double-sided adhesive layer, and a finished product release film layer; characterized in that: The die-cutting module for producing semi-finished product A includes a first flat die-cutting module, a second flat die-cutting module, and a third flat die-cutting module; the die-cutting module for producing semi-finished product B includes a fourth flat die-cutting module, a fifth flat die-cutting module, a sixth flat die-cutting module, and a seventh flat die-cutting module. The upper die of the first flat die-cutting die assembly is provided with a first socket cutting edge, a first inner contour cutting edge, and a first positioning post corresponding to the first socket cutting edge; The upper die of the second flat die-cutting die assembly is provided with a second positioning post corresponding to the first positioning hole cutting edge, and is provided with a first positioning hole cutting edge located inward and a first outer contour line cutting edge corresponding to the position and number of the first inner contour line cutting edge. The lower die of the third flat die-cutting die assembly is provided with a third positioning post corresponding to the first positioning hole cutting edge, and is provided with a first straight cutting edge and two first edge line cutting edges. The upper die of the fourth flat die-cutting die assembly is provided with a second set of positioning hole cutting edge, a fourth set of positioning post corresponding to the second set of positioning hole cutting edge, a preliminary outline cutting edge in a roughly U-shape, and two second edge line cutting edges. The upper blade of the fifth flat die-cutting roller group is provided with a fifth positioning post corresponding to the second positioning hole blade, and is provided with a second positioning hole blade and two third edge line blades located inward, several second inner contour line blades, mounting hole blades distributed at both ends of each second inner contour line blade, and several second outer contour line blades corresponding to the number of positions of the second inner contour line blades. The second outer contour line blades are spaced one step away from the second inner contour line blades and the mounting hole blades. The second outer contour line blades have handle-shaped blades that protrude towards both ends. The die of the sixth flat die-cutting die set is provided with a sixth set of positioning posts corresponding to the second set of positioning hole cutting edges, and is provided with a third positioning hole cutting edge and two fourth edge line cutting edges located inward; The die of the seventh flat die-cutting die assembly is provided with a seventh positioning post corresponding to the second positioning hole cutting edge, and is also provided with a second straight cutting edge.