High-yield production process and die cutter for multi-structure special-shaped adhesive products

Abstract

The invention discloses a high-yield production process die cutter for multi-structure special-shaped adhesive products, relates to the technical field of electronic components, and can solve the problems of unstable assembly, long machine adjustment time and material waste of existing process products. The high-yield production process of the multi-structure special-shaped adhesive product in the embodiment of the invention specifically comprises the following steps: S1, cutting a diaphragm by using a first die cutter, and cutting a hollow structure in a part of area of the diaphragm; s2, assembling a diaphragm with a hollow structure on the double-layer adhesive; s3, PC is assembled on the diaphragm, so that the PC is adhered to the adhesive surface of the double-layer adhesive through the hollow structure; s4, the PC, the double-layer adhesive and the diaphragm are cut at the same time through a second die cutter, and an adhesive product with the residual diaphragm material between the PC and the double-layer diaphragm is obtained; and S5, removing the residual diaphragm material between the PC and the double-layer diaphragm to obtain a formed adhesive product.

Description

Technical Field

[0001] The invention relates to the technical field of electronic components, and in particular to a high-yield production process and a die cutter for multi-structure special-shaped adhesive products. Background Art

[0002] Currently, electronic products such as tablet computers require insulating adhesive products.

[0003] Existing production processes for adhesive products include Figure 1 and Figure 2 As shown, when using a circular knife machine for production, first, two single-sided adhesives need to be pasted together to form a double-layer adhesive and a bottom film is used for bottom support. Then, the outer side of the double-layer adhesive is cut with a mold knife A. At the same time, the PC is cut with a mold knife B and another bottom film is used for bottom support. After the double-layer adhesive and PC are cut by mold knife A and mold knife B respectively, the PC is assembled to the side of the double-layer adhesive with glue, and the entire adhesive product is completed.

[0004] However, in the existing production process, since the double-layer adhesive and PC are assembled after being cut separately, and the adhesive products are precision parts for electronic products, the size combination is not stable enough during the assembly process of the double-layer adhesive and PC. Before production, the circular knife machine needs to be adjusted for a long time to ensure that the error after the double-layer adhesive and PC are assembled is within the standard range. In the process of adjusting the machine, a large amount of material waste will be caused, which will increase the production cost.

[0005] Based on the above background, the inventor has designed a high-yield production process and mold knife for multi-structure special-shaped adhesive products to solve at least one of the above problems, and thus proposed the present application. Summary of the invention

[0006] The purpose of this application is to provide a high-yield production process and mold knife for multi-structure special-shaped adhesive products, so as to solve the problems of unstable assembly, long machine adjustment time and waste of materials of existing process products.

[0007] In order to solve the above technical problems, the present invention adopts the following solutions:

[0008] On the one hand, the present application provides a high-yield production process for multi-structure special-shaped adhesive products, which specifically includes the following steps:

[0009] S1, using a first die cutter to cut the diaphragm, and cutting a hollow structure in a part of the diaphragm;

[0010] S2, assembling the diaphragm with a hollow structure onto the double-layer adhesive;

[0011] S3, assembling the PC onto the diaphragm, so that the PC is adhered to the adhesive surface of the double-layer adhesive through the hollow structure;

[0012] S4, using a second die cutter to simultaneously cut the PC and the double-layer adhesive, as well as the diaphragm, to obtain an adhesive product having residual diaphragm material between the PC and the double-layer diaphragm;

[0013] S5. Remove the residual diaphragm material between the PC and the double-layer diaphragm to obtain a formed adhesive product.

[0014] Furthermore, the method further includes a double-layer adhesive assembly step: assembling the first single-sided adhesive and the second single-sided adhesive so that the non-adhesive surface of the first single-sided adhesive is adhered to the adhesive surface of the second single-sided adhesive to form a double-layer adhesive.

[0015] Further, in S4, the second die cutter is provided with a second cutting edge and a third cutting edge;

[0016] The second blade edge and the third blade edge are both frame-shaped after being expanded along the circumferential direction of the second die cutter, and the expanded second blade edge is located inside the third blade edge;

[0017] The second blade is used to cut off the PC and double-layer adhesive, as well as the diaphragm at the same time;

[0018] The third blade is used to cut off the PC.

[0019] Further, in S1, the first die cutter is provided with a first cutting edge for cutting a hollow structure on the diaphragm, and the shape of the first cutting edge after being unfolded along the circumference of the first die cutter is the same as the shape of the third cutting edge after being unfolded;

[0020] The size of the first blade after unfolding and the size of the hollow structure cut out by the first blade are both smaller than the size of the third blade.

[0021] Furthermore, after the third blade cuts off the PC, the blade will partially cut into the diaphragm to cut the diaphragm in half.

[0022] Furthermore, the difference between the size of the first blade after expansion and the size of the third blade after expansion is in the range of 0.1 mm to 1 mm.

[0023] Furthermore, the size difference is: 0.3mm.

[0024] Furthermore, in S5, it is also necessary to use a sealing tape to allow the residual diaphragm material to adhere to the sealing tape and be discharged.

[0025] Furthermore, in S1 and S4, both have a bottom film, and the bottom film in S1 and the bottom film in S4 are respectively located on the side away from the first mold knife and the second mold knife.

[0026] On the other hand, the present application provides a die cutter for a high-yield production process of a multi-structured special-shaped adhesive product as described above, comprising a second blade edge that is an L-shaped frame after being unfolded and a third blade edge located inside the second blade edge, wherein the third blade edge comprises a square frame portion that is a square after being unfolded and an L-frame portion that is an L-shape after being unfolded;

[0027] The height of the second blade is greater than that of the third blade, and the height difference between the two is less than the sum of the thickness of the double-layer adhesive and the diaphragm, and greater than the thickness of the double-layer adhesive.

[0028] Beneficial effects of the present invention:

[0029] 1. The present application uses a second die cutter to simultaneously cut the PC and the double-layer adhesive, which can fundamentally solve the dimensional stability problem caused by the current assembly of PC and the double-layer adhesive.

[0030] Second, since the second die cutter cuts and shapes the part in one go, it can effectively save the time spent on machine adjustment and the materials wasted during the adjustment process.

[0031] 3. When the second mold knife of the present application cuts the PC and the double-layer adhesive, there is also a diaphragm in the middle. When the PC and the double-layer adhesive are cut at the same time, the third blade for cutting the PC cuts into the blade diaphragm and half-cuts the diaphragm, thereby solving the problem that the third blade may cause knife marks on the double-layer adhesive due to cutting the PC and the double-layer adhesive at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the existing process.

[0033] Figure 2 The figure is a schematic diagram of the assembly of the existing process.

[0034] Figure 3 This is a schematic diagram of the process of Example 1 of the present application.

[0035] Figure 4 This is an assembly diagram of Example 1 of the present application.

[0036] Figure 5 This is a schematic diagram of the three-dimensional explosion structure of the adhesive product in Example 1 of the present application.

[0037] Figure 6 This is a schematic diagram of the unfolded structure of the first mold knife in Example 1 of the present application.

[0038] Figure 7 This is a schematic diagram of the unfolded structure of the second mold knife in Example 1 of the present application.

[0039] Figure 8 This is a schematic diagram of the unfolded structure of the second mold knife in Example 2 of the present application.

[0040] Fig. 9This is a schematic diagram of the cross-sectional structure of the second mold knife in Example 2 of the present application.

[0041] Explanation of the accompanying drawings: 1-double-layer adhesive, 11-first single-sided adhesive, 12-second single-sided adhesive, 2-bottom film, 3-PC, 4-diaphragm, 41-hollow structure, 5-first mold knife, 51-first cutting edge, 6-second mold knife, 51-second cutting edge, 52-third cutting edge. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0043] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0046] Embodiment 1:

[0047] like Figures 3 to 7 As shown, this embodiment provides a high-yield production process for multi-structure special-shaped adhesive products, which specifically includes the following steps:

[0048] S1, using the first die cutter 5 to cut the diaphragm 4, and cutting a hollow structure 41 in a part of the diaphragm 4;

[0049] S2, assembling the diaphragm 4 with the hollow structure 41 onto the double-layer adhesive 1;

[0050] S3, assembling PC3 onto the diaphragm 4, so that PC3 is adhered to the adhesive surface of the double-layer adhesive 1 through the hollow structure 41;

[0051] S4, using the second die cutter 6 to simultaneously cut the PC3 and the double-layer adhesive 1, as well as the diaphragm 4, to obtain an adhesive product with residual diaphragm 4 material between the PC3 and the double-layer diaphragm 4;

[0052] S5. Remove the residual diaphragm 4 material between PC3 and the double-layer diaphragm 4 to obtain a formed adhesive product.

[0053] like Figure 1 and Figure 2 As shown, the core idea of ​​the existing adhesive product production process is: use two mold knives, namely: mold knife A and mold knife B to cut PC3 and double-layer adhesive 1 into shape respectively, and then assemble the formed PC3 and double-layer adhesive 1 together. Since the adhesive product produced in this embodiment is a precision component, it is necessary to ensure that the product tolerance is 0.1mm. Therefore, the technical idea of ​​cutting and forming first and then assembling will inevitably lead to the unstable size of the product after assembly, and then the operator needs to spend a lot of time to adjust the machine to ensure that the tolerance of the product after assembly meets the design standards. A lot of materials will also be consumed and wasted in the process of adjusting the machine.

[0054] Through the above steps, this embodiment improves the traditional idea of ​​cutting into shape first and then assembling into a method of directly using the second mold knife 6 to cut PC3 and the double-layer adhesive 1 at the same time. Before PC3 and the double-layer adhesive 1 are cut, PC3 and the double-layer adhesive 1 have been bonded together using the hollow structure 41 on the diaphragm 4. Therefore, the dimensional stability problem caused by the traditional process route can be fundamentally solved.

[0055] In addition, before cutting PC3 and the double-layer adhesive 1, a hollow structure 41 is cut out in the diaphragm 4 between PC3 and the double-layer adhesive 1, which can ensure that PC3 and the double-layer adhesive 1 are bonded and fixed together before being cut, thereby avoiding displacement of PC3 and the double-layer adhesive 1, and can also serve as a buffer structure when the second mold knife 6 cuts PC3, avoiding the second mold knife 6 directly cutting the double-layer adhesive 1 and causing knife marks after cutting PC3.

[0056] Meanwhile, in S5, the process of this embodiment utilizes the characteristic that the size of PC3 is smaller than that of double-sided adhesive, such as Figure 4As shown, after the third blade 52 and the second blade 51 of the second mold knife 6 cut the PC3 and the double-layer adhesive 1 respectively, the residual edge waste located on the outer side of the third blade 52 can be directly discharged, and after the residual edge waste after the PC3 is cut off is discharged, a part of the residual diaphragm 4 material will be exposed. At this time, the remaining diaphragm 4 material can be fixed by sealing glue, and the remaining diaphragm 4 material is directly pulled out from between PC3 and the double-layer adhesive 1 to complete the waste discharge of the residual diaphragm 4 material.

[0057] In this embodiment, the first die cutter 5 and the second die cutter 6 are both circular knives on a circular knife machine. As the first die cutter 5 and the second die cutter 6 rotate, the diaphragm 4, PC3 and the double-sided adhesive tape can be cut respectively.

[0058] In this embodiment, the double-layer adhesive 1 assembly step is also included: the first single-sided adhesive 11 and the second single-sided adhesive 12 are assembled, and the non-adhesive surface of the first single-sided adhesive 11 is pasted with the adhesive surface of the second single-sided adhesive 12 to form a double-layer adhesive 1. In this embodiment, the use of a circular knife machine to assemble two single-sided adhesives, namely the first single-sided adhesive 11 and the second single-sided adhesive 12 is a common process and will not be repeated here.

[0059] In this embodiment, in S4, the second die cutter 6 is provided with a second cutting edge 51 and a third cutting edge 52;

[0060] like Figure 7 As shown, the second blade 51 and the third blade 52 are both frame-shaped after being expanded along the circumferential direction of the second mold knife 6, and the expanded second blade 51 is located inside the third blade 52;

[0061] The second blade 51 is used to simultaneously cut off the PC 3 and the double-layer adhesive 1, as well as the diaphragm 4;

[0062] The third blade 52 is used to cut the PC3.

[0063] In this embodiment, the second blade 51 is mainly used to cut out the shape of the double-layer adhesive 1 of the product, while the third blade 52 is used to cut out the PC3 shape of the product.

[0064] In this embodiment, if Figure 6 and Figure 7 As shown, in S1, the first mold knife 5 is provided with a first blade 51 for cutting a hollow structure 41 on the diaphragm 4, and the shape of the first blade 51 after being expanded along the circumference of the first mold knife 5 is the same as the shape of the third blade 52 after being expanded;

[0065] like Figure 6 and Figure 7 As shown, the first blade 51 and the third blade 52 both include a square frame portion that is square when unfolded and an L frame portion that is L-shaped when unfolded;

[0066] like Figure 4 As shown, the size of the first blade 51 after expansion and the size of the hollow structure 41 cut out by the first blade 51 are both smaller than the size of the third blade 52, so that the hollow structure 41 of the diaphragm 4 can be used as a bonding channel between PC3 and the double-layer adhesive 1 before being cut. At the same time, the surrounding area of ​​the hollow structure 41 can also be used as a buffer structure when the third blade 52 cuts off PC3, thereby preventing the third blade 52 from cutting into the double-layer adhesive 1, causing a blade edge in the double-layer adhesive 1, and resulting in a failed product.

[0067] In this embodiment, after the third blade 52 cuts off PC3, its blade will partially cut into the diaphragm 4, and half-cut the diaphragm 4. The half-cutting of the diaphragm 4 by the third blade 52 in this embodiment means that the third blade 52 cuts into the diaphragm 4 without cutting it off, so that in S5, after the sealing glue is bonded to the exposed residual diaphragm 4 material, the part located on PC3 and the double-layer adhesive 1 can be pulled out, thereby completing the waste discharge of the residual diaphragm 4 material.

[0068] Optionally, the size difference between the first blade 51 after expansion and the third blade 52 after expansion is in the range of 0.1mm to 1mm. The technicians can also set the size difference to 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.9mm, etc. as needed. Since the sealing glue needs to pull out the residual diaphragm 4 material, its width cannot be too wide to avoid it being unable to be pulled out from between PC3 and the double-layer adhesive 1.

[0069] Specifically, in this embodiment, the size difference is: 0.3 mm.

[0070] Specifically, in this embodiment, in S5, it is also necessary to use a sealing strip to make the residual diaphragm 4 material adhere to the sealing strip and be discharged. In this embodiment, the viscosity of the sealing strip is stronger than that of the single-sided tape, so that the adhesion of the diaphragm 4 after being attached to the sealing strip is stronger.

[0071] Specifically, in the present embodiment, both S1 and S4 have a bottom film 2. The bottom film 2 in S1 and the bottom film 2 in S4 are respectively located on the side away from the first mold knife 5 and the second mold knife 6. The bottom film 2 can prevent impurities from appearing on the side of PC3 and the double-layer adhesive 1 away from each other, thereby affecting product quality. The bottom film 2 is a conventional process and will not be elaborated here.

[0072] Embodiment 2:

[0073] like Figure 7 and Figure 8As shown, this embodiment provides a die cutter for a high-yield production process of a multi-structure special-shaped adhesive product, comprising a second blade 51 that is an L-shaped frame after being unfolded and a third blade 52 located inside the second blade 51, wherein the third blade 52 comprises a square frame portion that is a square after being unfolded and an L-shaped L frame portion that is an L-shaped after being unfolded;

[0074] The height of the second blade 51 is greater than the height of the third blade 52, and the height difference between the two is less than the sum of the thicknesses of the double-layer adhesive 1 and the diaphragm 4, and is greater than the thickness of the double-layer adhesive 1, ensuring that when the second blade 51 is on the double-layer adhesive 1, the third blade 52 just cuts off PC3 and cuts part of the diaphragm 4, ensuring that PC3 is cut off by the third blade 52, and the third blade 52 will not cut the double-layer adhesive 1.

[0075] The mold knife in this embodiment is the second mold knife 6 in the above-mentioned embodiment 1. The unfolded shape and size of the second blade 51 and the third blade 52 are determined according to the shape and size of the double-layer adhesive 1 and PC3 in the adhesive product, which will not be repeated here.

[0076] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention 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 the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A high-yield production process for multi-structure special-shaped adhesive products, characterized in that: The specific steps include: S1, using a first die cutter (5) to cut the diaphragm (4), and cutting a hollow structure (41) in a part of the diaphragm (4); S2, assembling the diaphragm (4) with the hollow structure (41) onto the double-layer adhesive (1); S3, assembling PC (3) onto the diaphragm (4), so that PC (3) is adhered to the adhesive surface of the double-layer adhesive (1) through the hollow structure (41); S4, using a second die cutter (6) to simultaneously cut the PC (3) and the double-layer adhesive (1), as well as the diaphragm (4), to obtain an adhesive product having residual diaphragm (4) material between the PC (3) and the double-layer diaphragm (4); S5, draining away the residual diaphragm (4) material between the PC (3) and the double-layer diaphragm (4) to obtain a formed adhesive product.

2. A high-yield production process for multi-structured special-shaped adhesive products according to claim 1, characterized in that: The method further comprises a double-layer adhesive (1) assembly step: assembling a first single-sided adhesive (11) and a second single-sided adhesive (12) so that the non-adhesive surface of the first single-sided adhesive (11) is adhered to the adhesive surface of the second single-sided adhesive (12) to form a double-layer adhesive (1).

3. A high-yield production process for multi-structure special-shaped adhesive products according to claim 1, characterized in that: In S4, the second die cutter (6) is provided with a second cutting edge (51) and a third cutting edge (52); The second blade (51) and the third blade (52) are both frame-shaped after being expanded along the circumference of the second mold knife (6), and the expanded second blade (51) is located inside the third blade (52); The second blade (51) is used to simultaneously cut the PC (3), the double-layer adhesive (1), and the diaphragm (4); The third blade (52) is used to cut the PC (3).

4. A high-yield production process for multi-structure special-shaped adhesive products according to claim 3, characterized in that: In S1, the first mold knife (5) is provided with a first cutting edge (51) for cutting a hollow structure (41) on the diaphragm (4), and the shape of the first cutting edge (51) after being unfolded along the circumference of the first mold knife (5) is the same as the shape of the third cutting edge (52) after being unfolded; The size of the first blade (51) after being unfolded, and the size of the hollow structure (41) cut therefrom, are both smaller than the size of the third blade (52).

5. A high-yield production process for multi-structure special-shaped adhesive products according to claim 4, characterized in that: After the third blade (52) cuts off the PC (3), its blade will partially cut into the diaphragm (4) to cut the diaphragm (4) in half.

6. A high-yield production process for multi-structured special-shaped adhesive products according to claim 5, characterized in that: The difference between the size of the first blade edge (51) after being unfolded and the size of the third blade edge (52) after being unfolded ranges from 0.1 mm to 1 mm.

7. A high-yield production process for multi-structured special-shaped adhesive products according to claim 6, characterized in that: The size difference is: 0.3mm.

8. The high-yield production process of multi-structure special-shaped adhesive products according to claim 1, characterized in that: In S5, it is also necessary to use a sealing tape to allow the residual diaphragm (4) material to adhere to the sealing tape and be discharged.

9. A high-yield production process for multi-structured special-shaped adhesive products according to claim 1, characterized in that: In S1 and S4, there is a bottom film (2), and the bottom film (2) in S1 and the bottom film (2) in S4 are respectively located on the side away from the first mold knife (5) and the second mold knife (6).

10. A die cutter for high yield production process of a multi-structure special-shaped adhesive product as claimed in any one of claims 1 to 9, characterized in that: It comprises a second blade (51) which is an L-shaped frame when unfolded and a third blade (52) located inside the second blade (51), wherein the third blade (52) comprises a square frame portion which is a square when unfolded and an L-shaped frame portion which is an L-shaped frame when unfolded; The height of the second blade (51) is greater than the height of the third blade (52), and the height difference between the two is less than the sum of the thicknesses of the double-layer adhesive (1) and the diaphragm (4), and greater than the thickness of the double-layer adhesive (1).

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