A method of manufacturing a reinforcing plate

Abstract

This invention discloses a method for manufacturing a reinforcing plate, comprising the following steps: Step S1: providing an adhesive layer, and using laser cutting to cut a first alignment structure and a hollow window on the adhesive layer; Step S2: providing a reinforcing substrate, processing a second alignment structure on the reinforcing substrate, aligning the second alignment structure with the first alignment structure, so that the adhesive layer and the reinforcing substrate are bonded together to form a composite; Step S3: using laser cutting to cut the composite along a contour cutting path to obtain the reinforcing plate; the reinforcing plate includes a main seat and a handle, the thickness of the main seat being greater than the thickness of the handle; the contour cutting path is loop-shaped and includes a first cutting line and a second cutting line. The process of this invention is simple and quick, saving time, improving manufacturing efficiency, and improving the quality of the reinforcing plate, making it particularly suitable for mass production and facilitating widespread adoption.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing processes, and specifically to a method for manufacturing a reinforcing plate. Background Technology

[0002] In the production and assembly of flexible printed circuit boards (FPCBs) and rigid-flex PCBs, there are often localized thickness inconsistencies. In such cases, reinforcing plates are typically used on the FPCBs to increase local thickness, strengthen support, and secure components during assembly.

[0003] The conventional method for manufacturing reinforcing plates is as follows: first, a whole sheet of reinforcing substrate is made; then, an adhesive layer is laminated onto the back of the reinforcing substrate; and finally, the reinforcing plate is cut out.

[0004] However, in actual assembly, to facilitate flipping and provide support, traditional reinforcing plates need to be modified to form a structure with a thickness difference, i.e., at least a portion is formed as a thick-walled area and at least a portion as a thin-walled area, with the thickness of the thick-walled area being greater than that of the thin-walled area. However, for such reinforcing plates with thickness differences, if traditional reinforcing plate manufacturing processes are used, the adhesive layer in the thin-walled area needs to be manually peeled off in subsequent processes to achieve thinning of the thin-walled area to meet product requirements, which is time-consuming and results in low manufacturing efficiency.

[0005] In addition, there are a few other reinforcing plate manufacturing processes in the industry that use die-cutting, which are prone to producing burrs, poor dimensional accuracy, and glue residue in thin-walled areas, thus seriously affecting the quality of the reinforcing plate. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the present invention aims to provide a method for manufacturing a reinforcing plate, which, by adopting steps S1-S3, can produce a reinforcing plate with a thickness difference, while improving manufacturing efficiency and the quality of the reinforcing plate.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] A method for manufacturing a reinforcing plate includes the following steps:

[0009] Step S1: Provide an adhesive layer, and use laser cutting to cut out the first alignment structure and cut out the hollow window on the adhesive layer;

[0010] Step S2: Provide a reinforcing substrate, process a second alignment structure on the reinforcing substrate, align the second alignment structure with the first alignment structure, and bond the adhesive layer to the reinforcing substrate to form a composite.

[0011] Step S3: The composite is cut along the contour cutting path using laser cutting to obtain a reinforcing plate; the reinforcing plate includes a main seat and a handle, and the thickness of the main seat is greater than the thickness of the handle;

[0012] The prism cutting path is loop-shaped and includes a first cutting line and a second cutting line; in step S3, the main seat is cut from the bonded adhesive layer and reinforcing substrate along the first cutting line using laser cutting, and the handle is cut from the reinforcing substrate along the second cutting line using laser cutting; the projection of the handle on the adhesive layer is located in the area where the hollow window is located.

[0013] During the cutting process along the first cutting line on the composite, a first slit segment and a second slit segment are formed opposite to each other on the composite; during the cutting process along the second cutting line on the reinforcing substrate, a third slit segment and a fourth slit segment are formed opposite to each other on the reinforcing substrate; the distance between the third slit segment and the fourth slit segment is less than the distance between the first slit segment and the second slit segment.

[0014] The cutout window has a left side edge and a right side edge that are arranged opposite to each other; the distance between the left side edge and the right side edge of the cutout window is greater than the distance between the third cut segment and the fourth cut segment.

[0015] The third slit segment and the left side edge are located on the same side of the fourth slit segment; the fourth slit segment and the right side edge are located on the same side of the third slit segment.

[0016] The horizontal distance between the third slit segment and the left side edge is 0.3-0.8 mm.

[0017] The horizontal distance between the fourth cutting segment and the right side edge is 0.3-0.8 mm.

[0018] The adhesive layer is a foam adhesive layer or an AD adhesive layer.

[0019] In step S2, the second alignment structure is aligned with the first alignment structure, and the adhesive layer is stacked on the reinforcing substrate. Pressure is applied to bond the adhesive layer and the reinforcing substrate together to form a composite.

[0020] The reinforcing substrate is an epoxy resin fiberglass board, and the thickness of the reinforcing substrate is 0.1-0.3 mm.

[0021] The handle is located at the end of the main seat and protrudes relative to the main seat.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention provides a method for manufacturing a reinforcing plate, which combines steps S1-S3. In step S1, a hollow window is pre-cut into the adhesive layer. In step S3, the main seat is cut from the composite along a first cutting line, and the reinforcing substrate is cut along a second cutting line to form a handle. Simultaneously, the projection of the handle onto the adhesive layer is ensured to be within the hollow window area. This method produces a reinforcing plate with a thickness difference while ensuring that there is no adhesive residue in the handle area during the composite formation stage. It fundamentally eliminates the tedious process of manually removing adhesive, simplifying the process, making it simple and fast, saving time, and improving production efficiency, making it particularly suitable for mass production. Furthermore, the combination of pre-cutting the hollow window and laser cutting ensures that the handle is adhesive-free and that the reinforcing plate has a neat edge contour, avoiding burrs and dimensional tolerances from die-cutting, improving precision, and thus improving the quality of the reinforcing plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the adhesive layer structure;

[0025] Figure 2 A schematic diagram of the structure for reinforcing the substrate;

[0026] Figure 3 This is a schematic diagram of the composite structure;

[0027] Figure 4 for Figure 3 Enlarged view of point A;

[0028] Figure 5 This is a schematic diagram of the reinforcing plate.

[0029] Figure 6 This is a cross-sectional view of the reinforcing plate;

[0030] Among them, 10 is the adhesive layer; 11 is the first alignment structure; 12 is the first alignment hole; 20 is the reinforcing substrate; 21 is the second alignment structure; 22 is the second alignment hole; 30 is the composite; 40 is the reinforcing plate; 41 is the main seat; 42 is the handle; 50 is the contour cutting path; 51 is the first cutting line; 52 is the second cutting line; 61 is the first slit segment; 62 is the second slit segment; 63 is the third slit segment; 64 is the fourth slit segment; 65 is the first end-positioned slit segment; 66 is the second end-positioned slit segment; 67 is the third end-positioned slit segment; 68 is the fourth end-positioned slit segment; 70 is the hollow window; 71 is the left side edge; 72 is the right side edge; 73 is the end edge. Detailed Implementation

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] Example 1

[0033] like Figures 1-6 As shown, a method for manufacturing a reinforcing plate includes the following steps:

[0034] Step S1: Provide an adhesive layer 10, cut out the first alignment structure 11 on the adhesive layer 10 using laser cutting, and cut out the hollow window 70 using laser cutting.

[0035] Step S2: Provide a reinforcing substrate 20, process a second alignment structure 21 on the reinforcing substrate 20, align the second alignment structure 21 with the first alignment structure 11, and bond the adhesive layer 10 to the reinforcing substrate 20 to form a composite 30; wherein, in step S2, the second alignment structure 21 is processed on the reinforcing substrate 20 by laser cutting.

[0036] Step S3: The composite 30 is cut along the contour cutting path 50 using laser cutting to obtain the reinforcing plate 40; the reinforcing plate 40 includes a main seat 41 and a handle 42, the thickness of the main seat 41 being greater than the thickness of the handle 42;

[0037] The prism cutting path 50 is loop-shaped and includes a first cutting line 51 and a second cutting line 52. In step S3, the main seat 41 is cut along the first cutting line 51 from the bonded adhesive layer 10 and the reinforcing substrate 20 to be bonded together by laser cutting, and the handle 42 is cut along the second cutting line 52 from the reinforcing substrate 20 by laser cutting. The projection of the handle 42 on the adhesive layer 10 is located in the area where the hollow window 70 is located.

[0038] This invention provides a method for manufacturing a reinforcing plate, which employs steps S1-S3. Step S1 involves pre-cutting a perforated window 70 in the adhesive layer 10, laying the foundation for the subsequent adhesive-free treatment of the handle 42 area. In step S3, a main seat 41 is cut along the first cutting line 51 from the bonded adhesive layer 10 and reinforcing substrate 20, and a handle 42 is cut along the second cutting line 52 from the reinforcing substrate 20. The thickness of the main seat 41 is necessarily greater than the thickness of the handle 42. Step S3 allows the formation of a reinforcing plate 40 with a thickness difference. The projection of the handle 42 onto the adhesive layer 10 is located within the area of ​​the cutout window 70, ensuring that the handle 42 naturally forms a glue-free area after cutting. This eliminates the tedious process of manually removing the adhesive, simplifies the process, makes the manufacturing process simple and fast, saves time, and improves production efficiency, making it especially suitable for mass production. Moreover, the combination of the pre-cut cutout window 70 and laser cutting ensures that the handle 42 is glue-free while the edge contour of the reinforcing plate 40 is neat, avoiding burrs and dimensional tolerances from die-cutting, improving precision, and thus improving the quality of the reinforcing plate 40.

[0039] During the cutting process along the first cutting line 51 on the composite 30, a first slit segment 61 and a second slit segment 62 are formed on the composite 30. During the cutting process along the second cutting line 52 on the reinforcing substrate 20, a third slit segment 63 and a fourth slit segment 64 are formed on the reinforcing substrate 20. The distance P1 between the third slit segment 63 and the fourth slit segment 64 is less than the distance P2 between the first slit segment 61 and the second slit segment 62. By making the distance between the third slit segment 63 and the fourth slit segment 64 smaller than the distance between the first slit segment 61 and the second slit segment 62, the width of the cut handle 42 is smaller than the width of the main seat 41. This effectively reduces the volume of the handle 42 while ensuring the supporting strength of the main seat 41, making it easier to assemble the reinforcing plate 40 in a confined space.

[0040] The perforated window 70 is rectangular in shape to facilitate processing.

[0041] The cutout window 70 has a left side edge 71 and a right side edge 72 arranged opposite to each other; the distance between the left side edge 71 and the right side edge 72 of the cutout window 70 is greater than the distance between the third slit segment 63 and the fourth slit segment 64. By making the distance between the left side edge 71 and the right side edge 72 of the cutout window 70 greater than the distance between the third slit segment 63 and the fourth slit segment 64, the width of the cutout window 70 is limited to be greater than the width of the handle 42, thereby providing sufficient space for laser cutting along the second cutting line 52. This ensures that when the laser beam cuts the handle 42 from the reinforcing substrate 20, it is completely within the range of the cutout window 70, effectively preventing the laser from accidentally cutting the upper adhesive layer or producing slag adhesion, reducing processing difficulty and scrap rate, thereby further improving the quality of the reinforcing plate 40.

[0042] The third slit segment 63 and the left side edge 71 are located on the same side of the fourth slit segment 64; the fourth slit segment 64 and the right side edge 72 are located on the same side of the third slit segment 63. By adopting the above configuration, the positional relationship of the handle 42 relative to the cutout window 70 is defined, so that the cutting path is always limited within the cutout window 70, avoiding problems such as uneven cutting edges or damage to the adhesive layer.

[0043] The horizontal distance d1 between the third slit segment 63 and the left side edge 71 is 0.3-0.8 mm. By setting the horizontal distance d1 between the third slit segment 63 and the left side edge 71 to 0.3-0.8 mm, the adhesive layer can be prevented from being ablated during laser cutting, and excessive waste of the adhesive layer 10 due to excessive spacing can be avoided, thus balancing yield and structural reliability.

[0044] The horizontal distance d2 between the fourth slit segment 64 and the right side edge 72 is 0.3-0.8mm. By setting the horizontal distance d2 between the third slit segment 63 and the left side edge 71 to 0.3-0.8mm, and setting the horizontal distance between the fourth slit segment 64 and the right side edge 72 to 0.3-0.8mm, uniform safety margins are ensured on both sides of the handle 42, guaranteeing the structural stability of the product. This also avoids the risk of stress concentration or local delamination due to insufficient margin on one side, thus improving the overall structural reliability of the product.

[0045] In a preferred embodiment of the present invention, the horizontal distance d1 between the third slit segment 63 and the left side edge 71 is 0.5 mm. The horizontal distance d2 between the fourth slit segment 64 and the right side edge 72 is 0.5 mm. By adopting the above settings, the distances between the left and right sides of the handle 42 and the corresponding side edges of the hollow window 70 are symmetrically arranged, further improving the safety of cutting, avoiding damage to the adhesive layer, and further ensuring the width of the handle 42, thereby ensuring the structural strength of the handle 42.

[0046] During the cutting process along the second cutting line 52 on the reinforcing substrate 20, a first end-positioned slit segment 65 is also cut on the reinforcing substrate 20. One end of the first end-positioned slit segment 65 is connected to the third slit segment 63, and the other end is connected to the fourth slit segment 64. The hollow window 70 also has an end-positioned edge 73. The distance c between the first end-positioned slit segment 65 and the end-positioned edge 73 is 0.3-0.8mm, which provides clearance space in the end direction for laser cutting. This ensures that the laser will not burn the edge of the adhesive layer 10 when cutting the root of the handle 42, avoiding the root cutting effect and local delamination risk caused by the end adhesive layer being too narrow. This significantly improves the mechanical reliability and service life of the connection between the reinforcing plate 40 and the handle 42.

[0047] In the most preferred embodiment of the present invention, the distance between the first end-positioned slit segment 65 and the end-positioned edge 73 is 0.5 mm.

[0048] During the cutting process along the first cutting line 51 on the composite 30, a second end-positioned slit segment 66, a third end-positioned slit segment 67, and a fourth end-positioned slit segment 68 are formed on the composite 30. One end of the second end-positioned slit segment 66 is connected to the first slit segment 61, and the other end is connected to the second slit segment 62. One end of the third end-positioned slit segment 67 is connected to the first slit segment 61, and the other end is connected to the third slit segment 63. One end of the fourth end-positioned slit segment 68 is connected to the second slit segment 62, and the other end is connected to the fourth slit segment 64. In step S3, the composite 30 is cut along the contour cutting path 50 using laser cutting. This forms a first end-cutting segment 65, a third cutting segment 63, a third end-cutting segment 67, a first cutting segment 61, a second end-cutting segment 66, a second cutting segment 62, a fourth end-cutting segment 68, and a fourth cutting segment 64 on the composite 30. After the laser cutting along the contour cutting path 50 is completed, the reinforcing plate 40 is separated from the composite 30 through each cutting segment. This eliminates the need for a complex ejection mechanism or manual removal, further facilitating the manufacturing of the reinforcing plate 40 and improving the continuity and production efficiency of the laser cutting process.

[0049] In step S2, the second alignment structure 21 is aligned with the first alignment structure 11, and the adhesive layer 10 is stacked on the reinforcing substrate 20. Pressure is applied to bond the adhesive layer 10 and the reinforcing substrate 20 together to form a composite 30. By applying pressure to the stacked adhesive layer 10 and the reinforcing substrate 20, air between the bonding interfaces can be effectively expelled, improving the bonding strength and preventing interlayer slippage or peeling under cutting stress, thus ensuring the quality of subsequent laser cutting.

[0050] The adhesive layer 10 is a foam adhesive layer to reduce costs.

[0051] Of course, in addition to this, the adhesive layer 10 can also be an AD adhesive layer. In step S2, the second alignment structure 21 is aligned with the first alignment structure 11, and the adhesive layer 10 is stacked on the reinforcing substrate 20. Under heating conditions, pressure is applied to make the adhesive layer 10 melt and bond it together with the reinforcing substrate 20 to form a composite 30, thereby improving the bonding strength between the adhesive layer 10 and the reinforcing substrate 20 and enhancing the structural stability of the composite 30.

[0052] The applied pressure and temperature conditions can be set according to the actual product.

[0053] The reinforcing substrate 20 is an epoxy resin fiberglass board, and the thickness of the reinforcing substrate 20 is 0.1-0.3 mm. In the most preferred embodiment of the present invention, the thickness of the reinforcing substrate 20 is 0.2 mm to facilitate laser cutting.

[0054] The handle 42 is located at the end of the main seat 41 and protrudes relative to the main seat 41. By making the handle 42 protrude relative to the main seat 41, the ease of operation of the reinforcing plate 40 can be improved. The protruding handle 42 can be used as a dedicated force application point for automated equipment (such as a robot arm) or operators, facilitating operations such as picking and flipping in the assembly line.

[0055] The first alignment structure 11 includes a plurality of first alignment holes 12, and the second alignment structure 21 includes a plurality of second alignment holes 22. The number of second alignment holes 22 is the same as the number of first alignment holes 12, and the diameter of the first alignment holes 12 is the same as the diameter of the second alignment holes 22. Aligning the second alignment structure 21 with the first alignment structure 11 involves aligning each of the plurality of second alignment holes 22 with a corresponding one-to-one correspondence with the plurality of first alignment holes 12, thereby improving the accuracy of the alignment between the reinforcing substrate 20 and the adhesive layer 10.

[0056] Specifically, both the reinforcing substrate 20 and the adhesive layer 10 are rectangular. The adhesive layer 10 has first alignment holes 12 cut at each of its four corners to facilitate processing. The length of the reinforcing substrate 20 is the same as the length of the adhesive layer 10, and the width of the reinforcing substrate 20 is the same as the width of the adhesive layer 10. In this embodiment, the adhesive layer 10 has five first alignment holes 12, and the reinforcing substrate 20 has five corresponding second alignment holes 22.

[0057] As a further preferred embodiment of the present invention, in step S3, the composite 30 is cut along the contour cutting path 50 using the second alignment hole 22 as the positioning point, thereby obtaining the reinforcing plate 40, which facilitates cutting and processing.

[0058] Example 2

[0059] A method for manufacturing a reinforcing plate includes the following steps:

[0060] Step S1: Provide an adhesive layer 10, and use laser cutting to cut out the first alignment structure 11 on the adhesive layer 10, and cut out multiple hollow windows 70;

[0061] Step S2: Provide a reinforcing substrate 20, process a second alignment structure 21 on the reinforcing substrate 20, align the second alignment structure 21 with the first alignment structure 11, and bond the adhesive layer 10 to the reinforcing substrate 20 to form a composite 30.

[0062] Step S3: The composite 30 is cut along the contour cutting path 50 using laser cutting to obtain the reinforcing plate 40; the reinforcing plate 40 includes a main seat 41 and a handle 42, the thickness of the main seat 41 being greater than the thickness of the handle 42;

[0063] The prism cutting path 50 is loop-shaped and includes a first cutting line 51 and a second cutting line 52. In step S3, the main seat 41 is cut along the first cutting line 51 from the bonded adhesive layer 10 and the reinforcing substrate 20 to be bonded together by laser cutting, and the handle 42 is cut along the second cutting line 52 from the reinforcing substrate 20 by laser cutting. The projection of the handle 42 on the adhesive layer 10 is located in the area where the hollow window 70 is located.

[0064] Step S3 is repeated multiple times to obtain a plurality of reinforcing plates 40 from the composite 30 by laser cutting.

[0065] This invention provides a method for manufacturing a reinforcing plate, which employs steps S1-S3. Step S1 involves pre-cutting a perforated window 70 in the adhesive layer 10, laying the foundation for the subsequent adhesive-free treatment of the handle 42 area. In step S3, a main seat 41 is cut along the first cutting line 51 from the bonded adhesive layer 10 and reinforcing substrate 20, and a handle 42 is cut along the second cutting line 52 from the reinforcing substrate 20. The thickness of the main seat 41 is necessarily greater than the thickness of the handle 42. Step S3 allows for the formation of a reinforcing plate 40 with a thickness difference. Since the projection of the handle 42 onto the adhesive layer is located within the perforated window 70, it ensures that the handle 42 is naturally an adhesive-free area after cutting, eliminating the tedious process of manually removing adhesive. The process is streamlined, making the manufacturing process simple and fast, saving time and improving production efficiency. Moreover, the combination of pre-cut window 70 and laser cutting ensures that the handle 42 is glue-free and the edge contour of the reinforcing plate 40 is neat, avoiding burrs and dimensional tolerances from die-cutting, improving precision, and thus improving the quality of the reinforcing plate 40. By repeatedly performing laser cutting on the same composite 30 along the contour cutting path 50, multiple reinforcing plates 40 can be produced at once. This not only eliminates repeated positioning errors by using single clamping, ensuring the dimensional consistency and contour accuracy of batch products, further improving the quality of mass-produced products, but also greatly improves production efficiency and optimizes material utilization, especially suitable for large-scale automated production needs.

[0066] During the cutting process along the first cutting line 51 on the composite 30, a first slit segment 61 and a second slit segment 62 are formed on the composite 30. During the cutting process along the second cutting line 52 on the reinforcing substrate 20, a third slit segment 63 and a fourth slit segment 64 are formed on the reinforcing substrate 20. The distance P1 between the third slit segment 63 and the fourth slit segment 64 is less than the distance P2 between the first slit segment 61 and the second slit segment 62. By making the distance between the third slit segment 63 and the fourth slit segment 64 smaller than the distance between the first slit segment 61 and the second slit segment 62, the width of the cut handle 42 is smaller than the width of the main seat 41. This effectively reduces the volume of the handle 42 while ensuring the supporting strength of the main seat 41, making it easier to assemble the reinforcing plate 40 in a confined space.

[0067] The perforated window 70 is rectangular in shape to facilitate processing.

[0068] The cutout window 70 has a left side edge 71 and a right side edge 72 arranged opposite to each other; the distance between the left side edge 71 and the right side edge 72 of the cutout window 70 is greater than the distance between the third slit segment 63 and the fourth slit segment 64. By making the distance between the left side edge 71 and the right side edge 72 of the cutout window 70 greater than the distance between the third slit segment 63 and the fourth slit segment 64, the width of the cutout window 70 is limited to be greater than the width of the handle 42, thereby providing sufficient space for laser cutting along the second cutting line 52. This ensures that when the laser beam cuts the handle 42 from the reinforcing substrate 20, it is completely within the range of the cutout window 70, effectively preventing the laser from accidentally cutting the upper adhesive layer or producing slag adhesion, reducing processing difficulty and scrap rate, thereby further improving the quality of the reinforcing plate 40.

[0069] The third slit segment 63 and the left side edge 71 are located on the same side of the fourth slit segment 64; the fourth slit segment 64 and the right side edge 72 are located on the same side of the third slit segment 63. By adopting the above configuration, the positional relationship of the handle 42 relative to the cutout window 70 is defined, so that the cutting path is always limited within the cutout window 70, avoiding problems such as uneven cutting edges or damage to the adhesive layer.

[0070] The horizontal distance d1 between the third slit segment 63 and the left side edge 71 is 0.3-0.8 mm. By setting the horizontal distance d1 between the third slit segment 63 and the left side edge 71 to 0.3-0.8 mm, the adhesive layer can be prevented from being ablated during laser cutting, and excessive waste of the adhesive layer 10 due to excessive spacing can be avoided, thus balancing yield and structural reliability.

[0071] The horizontal distance d2 between the fourth slit segment 64 and the right side edge 72 is 0.3-0.8mm. By setting the horizontal distance d2 between the third slit segment 63 and the left side edge 71 to 0.3-0.8mm, and setting the horizontal distance between the fourth slit segment 64 and the right side edge 72 to 0.3-0.8mm, uniform safety margins are ensured on both sides of the handle 42, guaranteeing the structural stability of the product. This also avoids the risk of stress concentration or local delamination due to insufficient margin on one side, thus improving the overall structural reliability of the product.

[0072] In a preferred embodiment of the present invention, the horizontal distance d1 between the third slit segment 63 and the left side edge 71 is 0.5 mm. The horizontal distance d2 between the fourth slit segment 64 and the right side edge 72 is 0.5 mm. By adopting the above settings, the distances between the left and right sides of the handle 42 and the corresponding side edges of the hollow window 70 are symmetrically arranged, further improving the safety of cutting, avoiding damage to the adhesive layer, and further ensuring the width of the handle 42, thereby ensuring the structural strength of the handle 42.

[0073] During the cutting process along the second cutting line 52 on the reinforcing substrate 20, a first end-positioned slit segment 65 is also cut on the reinforcing substrate 20. One end of the first end-positioned slit segment 65 is connected to the third slit segment 63, and the other end is connected to the fourth slit segment 64. The hollow window 70 also has an end-positioned edge 73. The distance c between the first end-positioned slit segment 65 and the end-positioned edge 73 is 0.3-0.8mm, which provides clearance space in the end direction for laser cutting. This ensures that the laser will not burn the edge of the adhesive layer 10 when cutting the root of the handle 42, avoiding the root cutting effect and local delamination risk caused by the end adhesive layer being too narrow. This significantly improves the mechanical reliability and service life of the connection between the reinforcing plate 40 and the handle 42.

[0074] In the most preferred embodiment of the present invention, the distance between the first end-positioned slit segment 65 and the end-positioned edge 73 is 0.5 mm.

[0075] During the cutting process along the first cutting line 51 on the composite 30, a second end-positioned slit segment 66, a third end-positioned slit segment 67, and a fourth end-positioned slit segment 68 are formed on the composite 30. One end of the second end-positioned slit segment 66 is connected to the first slit segment 61, and the other end is connected to the second slit segment 62. One end of the third end-positioned slit segment 67 is connected to the first slit segment 61, and the other end is connected to the third slit segment 63. One end of the fourth end-positioned slit segment 68 is connected to the second slit segment 62, and the other end is connected to the fourth slit segment 64. In step S3, the composite 30 is cut along the contour cutting path 50 using laser cutting. This forms a first end-cutting segment 65, a third cutting segment 63, a third end-cutting segment 67, a first cutting segment 61, a second end-cutting segment 66, a second cutting segment 62, a fourth end-cutting segment 68, and a fourth cutting segment 64 on the composite 30. After the laser cutting along the contour cutting path 50 is completed, the reinforcing plate 40 is separated from the composite 30 through each cutting segment. This eliminates the need for a complex ejection mechanism or manual removal, further facilitating the manufacturing of the reinforcing plate 40 and improving the continuity and production efficiency of the laser cutting process.

[0076] In step S2, the second alignment structure 21 is aligned with the first alignment structure 11, and the adhesive layer 10 is stacked on the reinforcing substrate 20. Pressure is applied to bond the adhesive layer 10 and the reinforcing substrate 20 together to form a composite 30. By applying pressure to the stacked adhesive layer 10 and the reinforcing substrate 20, air between the bonding interfaces can be effectively expelled, improving the bonding strength and preventing interlayer slippage or peeling under cutting stress, thus ensuring the quality of subsequent laser cutting.

[0077] The adhesive layer 10 is a foam adhesive layer to reduce costs.

[0078] Of course, in addition to this, the adhesive layer 10 can also be an AD adhesive layer. In step S2, the second alignment structure 21 is aligned with the first alignment structure 11, and the adhesive layer 10 is stacked on the reinforcing substrate 20. Under heating conditions, pressure is applied to make the adhesive layer 10 melt and bond it together with the reinforcing substrate 20 to form a composite 30, thereby improving the bonding strength between the adhesive layer 10 and the reinforcing substrate 20 and enhancing the structural stability of the composite 30.

[0079] The applied pressure and temperature conditions can be set according to the actual product.

[0080] The reinforcing substrate 20 is an epoxy resin fiberglass board, and the thickness of the reinforcing substrate 20 is 0.1-0.3 mm. In the most preferred embodiment of the present invention, the thickness of the reinforcing substrate 20 is 0.2 mm to facilitate laser cutting.

[0081] The handle 42 is located at the end of the main seat 41 and protrudes relative to the main seat 41. By making the handle 42 protrude relative to the main seat 41, the ease of operation of the reinforcing plate 40 can be improved. The protruding handle 42 can be used as a dedicated force application point for automated equipment (such as a robot arm) or operators, facilitating operations such as picking and flipping in the assembly line.

[0082] The first alignment structure 11 includes a plurality of first alignment holes 12, and the second alignment structure 21 includes a plurality of second alignment holes 22. The number of second alignment holes 22 is the same as the number of first alignment holes 12, and the diameter of the first alignment holes 12 is the same as the diameter of the second alignment holes 22. Aligning the second alignment structure 21 with the first alignment structure 11 involves aligning each of the plurality of second alignment holes 22 with a corresponding one-to-one correspondence with the plurality of first alignment holes 12, thereby improving the accuracy of the alignment between the reinforcing substrate 20 and the adhesive layer 10.

[0083] Specifically, both the reinforcing substrate 20 and the adhesive layer 10 are rectangular. The adhesive layer 10 has first alignment holes 12 cut at each of its four corners to facilitate processing. The length of the reinforcing substrate 20 is the same as the length of the adhesive layer 10, and the width of the reinforcing substrate 20 is the same as the width of the adhesive layer 10. In this embodiment, the adhesive layer 10 has five first alignment holes 12, and the reinforcing substrate 20 has five corresponding second alignment holes 22.

[0084] As a further preferred embodiment of the present invention, in step S3, the composite 30 is cut along the contour cutting path 50 using the second alignment hole 22 as the positioning point, thereby obtaining the reinforcing plate 40, which facilitates cutting and processing.

[0085] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A method for manufacturing a reinforcing plate, characterized in that: Includes the following steps: Step S1: Provide an adhesive layer, and use laser cutting to cut out the first alignment structure and cut out the hollow window on the adhesive layer; Step S2: Provide a reinforcing substrate, process a second alignment structure on the reinforcing substrate, align the second alignment structure with the first alignment structure, and bond the adhesive layer to the reinforcing substrate to form a composite. Step S3: The composite is cut along the contour cutting path using laser cutting to obtain a reinforcing plate; the reinforcing plate includes a main seat and a handle, and the thickness of the main seat is greater than the thickness of the handle; The prism cutting path is loop-shaped and includes a first cutting line and a second cutting line; in step S3, the main seat is cut from the bonded adhesive layer and reinforcing substrate along the first cutting line using laser cutting, and the handle is cut from the reinforcing substrate along the second cutting line using laser cutting; the projection of the handle on the adhesive layer is located in the area where the hollow window is located.

2. The method for manufacturing the reinforcing plate as described in claim 1, characterized in that: During the cutting process along the first cutting line on the composite, a first slit segment and a second slit segment are formed opposite to each other on the composite; during the cutting process along the second cutting line on the reinforcing substrate, a third slit segment and a fourth slit segment are formed opposite to each other on the reinforcing substrate; the distance between the third slit segment and the fourth slit segment is less than the distance between the first slit segment and the second slit segment.

3. The method for manufacturing the reinforcing plate as described in claim 2, characterized in that: The cutout window has a left side edge and a right side edge that are arranged opposite to each other; the distance between the left side edge and the right side edge of the cutout window is greater than the distance between the third cut segment and the fourth cut segment.

4. The method for manufacturing the reinforcing plate as described in claim 3, characterized in that: The third slit segment and the left side edge are located on the same side of the fourth slit segment; the fourth slit segment and the right side edge are located on the same side of the third slit segment.

5. The method for manufacturing the reinforcing plate as described in claim 4, characterized in that: The horizontal distance between the third slit segment and the left side edge is 0.3-0.8 mm.

6. The method for manufacturing the reinforcing plate as described in claim 5, characterized in that: The horizontal distance between the fourth cutting segment and the right side edge is 0.3-0.8 mm.

7. The method for manufacturing the reinforcing plate as described in claim 1, characterized in that: The adhesive layer is a foam adhesive layer or an AD adhesive layer.

8. The method for manufacturing the reinforcing plate as described in claim 1 or 7, characterized in that: In step S2, the second alignment structure is aligned with the first alignment structure, and the adhesive layer is stacked on the reinforcing substrate. Pressure is applied to bond the adhesive layer and the reinforcing substrate together to form a composite.

9. The method for manufacturing the reinforcing plate as described in claim 1, characterized in that: The reinforcing substrate is an epoxy resin fiberglass board, and the thickness of the reinforcing substrate is 0.1-0.3 mm.

10. The method for manufacturing the reinforcing plate as described in claim 1, characterized in that: The handle is located at the end of the main seat and protrudes relative to the main seat.

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