Stamping fuse and processing method thereof

Abstract

According to the stamping fuse processing method, copper foil raw material stamping, fuse primary shaping and film covering, fuse primary hot pressing, fuse secondary shaping, fuse secondary hot pressing and finished fuse rolling are sequentially carried out, so that the middle of the fuse is in a curve shape, thermal expansion and cold contraction displacement of the fuse during displacement processing is prevented, and the processing precision is improved. The first PI film layer and the second PI film layer are formed along the outer edge of the middle of the fuse, so that bilateral stress is effectively decomposed, and the structural strength of the fuse is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuses, and more particularly to a stamped fuse and a processing method thereof. Background Art

[0002] FFC flexible flat cable is a new type of data cable made of PET insulating material and extremely thin tinned flat copper wire, pressed together through a high-tech automated equipment production line. It has the advantages of being soft, easy to bend and fold, thin, small in size, simple to connect, easy to disassemble, and easy to solve electromagnetic shielding.

[0003] The technology closest to the prior art is, publication number: CN116387768A, a collection line with a fuse and its corresponding processing technology, a collection line with a fuse, an upper PI hot melt adhesive layer; an intermediate copper foil layer, which includes a number of collection terminals, a fuse, a connecting lead, and an interface end; and a lower PI hot melt adhesive layer; the upper PI hot melt adhesive layer covers the intermediate copper foil layer, and the bottom of the intermediate copper foil layer is supported by the lower PI hot melt adhesive layer.

[0004] When processing existing fuses, it is impossible to accurately punch and heat the upper PI hot melt adhesive layer, the lower PI hot melt adhesive layer, and the middle copper foil layer, resulting in a low yield rate. In addition, the fuse is easy to break when subjected to force, and cannot meet the efficient working requirements of the acquisition line.

[0005] In view of this, the present invention provides a punched fuse which is accurate, composite and easy to process and a processing method thereof. Summary of the invention

[0006] The object of the present invention is to provide a punched fuse which is accurate, composite and easy to process and a processing method thereof.

[0007] A method for processing a stamped fuse, characterized in that it comprises the following steps:

[0008] Step 1: Punch the copper foil raw material, transport the copper foil raw material to the punching machine and punch it into multiple pieces of parallel connected fuses in sequence. The multiple pieces of fuses are wound into fuse coils by a winding machine. The middle part of the fuse is curved, and multiple rows of welding holes are punched at one end of the fuse.

[0009] The first layer of PI film and the second layer of PI film are pre-cut, holes are cut on the first layer of PI film and the second layer of PI film, and the cut holes are arranged corresponding to the multiple rows of welding holes;

[0010] Step 2: The fuse is shaped and coated once, and the fuse roll is transported to the primary cutting station of the die-cutting machine for the first shaping and cutting, and the shaped fuse is laminated with the first layer of PI film and the second layer of PI film, so that only the ends of the parallel connected fuses are connected, and the cut fuse waste is discharged;

[0011] Step 3: The fuse is hot pressed once. The double-sided film-coated fuse is hot pressed once by the first hot pressing roller device until the fuse is bonded to the first layer of PI film and the second layer of PI film;

[0012] Step 4: Fuse secondary shaping: The double-sided coated fuse is transported to the secondary cutting station of the die-cutting machine for secondary shaping and cutting, so that the adjacent double-sided coated fuse connection ends are separated, and the cut fuse, the first layer of PI film, and the second layer of PI film waste are discharged;

[0013] Step 5: The fuse is subjected to secondary hot pressing. The fuse after secondary shaping is subjected to secondary hot pressing with the first layer of PI film and the second layer of PI film through a second hot pressing roller device until the fuse is completely bonded with the first layer of PI film and the second layer of PI film glue;

[0014] Step 6: Winding up the finished fuse. The finished fuse is rolled up by a winding machine.

[0015] Furthermore, a CCD inspection device is also provided in the stamping copper foil raw material. When the curve in the middle of the fuse breaks, the punch press stops and alarms.

[0016] Furthermore, in step one, the punching press tonnage is 30 tons, and the punching press speed is 120 times / min.

[0017] In some embodiments, step one specifically includes punching copper foil raw material, conveying the copper foil raw material to a punch press for a punching forming, punching the copper foil raw material in sequence into multiple pieces of parallel connected fuses, the middle part of the fuse is a curve, the multiple pieces of fuses are wound into a fuse roll by a winder, the multiple pieces of fuses and protective paper are wound into a fuse roll by a winder, and the protective paper is used to prevent friction between the upper and lower layers of fuses.

[0018] In some embodiments, step one specifically includes pre-cutting holes on the first layer of PI film, cutting rectangular strips of holes on the first layer of PI film through a circular knife mold of a lower hole cutting station of a die-cutting machine, pre-cutting holes on the second layer of PI film, and cutting rectangular strips of holes on the second layer of PI film through a circular knife mold of an upper hole cutting station of a die-cutting machine.

[0019] Furthermore, the pre-cut hole processing of the first layer of PI film is specifically as follows: the first bottom protective film is conveyed on the die-cutting machine, the first layer of PI film is laminated with the first bottom protective film, the adhesive layer of the first layer of PI film is far away from the first bottom protective film, a protective paper is arranged above the adhesive layer of the first layer of PI film, the first layer of PI film is conveyed to the lower hole cutting station T1 of the die-cutting machine through the first bottom protective film, rectangular strip holes are cut through the circular knife mold of the lower hole cutting station T1, the rectangular strip waste cut from the first layer of PI film is conveyed and discharged through the first discharge protective film, and the protective paper of the first layer of PI film far away from the first bottom protective film is discharged as protective paper waste;

[0020] The second layer PI film pre-cutting process is specifically as follows: the second bottom protective film is conveyed on the die-cutting machine, the second layer PI film is laminated with the second bottom protective film, the second layer PI film is conveyed to the upper hole cutting station D12 of the die-cutting machine through the second bottom protective film, rectangular strip holes are cut by the circular knife mold of the upper hole cutting station D12, and the rectangular strip waste cut from the second layer PI film is conveyed and discharged through the second discharge protective film;

[0021] In some embodiments, step two is specifically as follows: the fuse is shaped and coated once, the fuse roll is transported to the primary cutting station of the die-cutting machine for the first shaping and cutting, and the shaped fuse is laminated with the first layer of PI film and the second layer of PI film. The fuse passes through a circular knife die so that only the ends of the parallel connected fuses are connected to prevent the fuse from shifting due to thermal expansion and contraction during subsequent processing, and the cut fuse waste is discharged.

[0022] Furthermore, the one-time shaping and coating of the fuse is specifically as follows: the fuse roll protective film is conveyed on the die-cutting machine, the fuse roll is conveyed to the primary cutting station T2 through the third protective film for the first shaping and cutting, the shaping waste is discharged, and the fuse roll protective film continues to carry the one-time shaping and conveyed forward and firstly laminated with the first layer of PI film with pre-cut holes carried by the first bottom protective film, and then laminated with the second layer of PI film carried by the second protective film. After laminating, the fuse roll protective film and the second bottom protective film are discharged, and only the first bottom protective film is left to carry the first layer of PI film, the fuse, and the second layer of PI film for transportation.

[0023] In some embodiments, step three is specifically as follows: the fuse is hot pressed once, and the double-sided coated fuse is hot pressed once through a hot pressing roller device until the fuse is bonded to the first layer of PI film and the second layer of PI film, wherein the fuse is arranged above the first layer of PI film, and the second layer of PI film is arranged above the fuse, and the terminal connection portion of the fuse protrudes from the edges of the first layer of PI film and the second layer of PI film, and the unconnected portion of the fuse is completely wrapped by the first layer of PI film and the second layer of PI film, so as to protect the fuse and assist in secondary shaping, and provide die-cutting positioning for secondary shaping.

[0024] Furthermore, the double-sided coated fuse is subjected to a hot pressing process through a hot pressing roller device. Specifically, the hot pressing roller device includes a hot pressing wheel D13, a hot pressing wheel D14, and a first bottom protective film carrying a first layer of PI film, a fuse, and a second layer of PI film into the hot pressing wheel D13 and the hot pressing wheel D14 for a hot pressing process.

[0025] In some embodiments, step four is specifically as follows: secondary shaping of the fuse, the double-sided coated fuse is conveyed to the circular knife die of the secondary cutting station of the die-cutting machine for secondary shaping and cutting, so that the adjacent double-sided coated fuse connection ends are separated, and the cut fuse, the first layer of PI film, and the second layer of PI film waste are discharged, wherein the first layer of PI film and the second layer of PI film are formed along the outer edge near the middle of the fuse, one end of the fuse is the welding end, and the other end of the fuse is the opening end, when the welding end or the opening end of the fuse is subjected to force, since the shapes of the first layer of PI film and the second layer of PI film are formed along the outer edge of the middle of the fuse, the force on both sides is effectively decomposed, so that the middle part of the fuse is not easy to break.

[0026] Furthermore, the double-sided coated fuse is transported to the circular knife mold of the secondary cutting station of the die-cutting machine for secondary shaping and cutting. Specifically, the first bottom protective film carries the first layer of PI film, the fuse, and the second layer of PI film into the circular knife mold of the secondary cutting station T4 of the die-cutting machine for secondary shaping and cutting, and the cut-off waste of the first layer of PI film, the second layer of PI film and the fuse are discharged.

[0027] In some embodiments, step five is specifically as follows: the first bottom protective film carries the first layer of PI film, the fuse, and the second layer of PI film forward. At this time, the die-cutting machine inputs the upper isolation protective film, and below the upper isolation protective film are the first layer of PI film, the fuse, and the second layer of PI film in sequence. At this time, due to the previous multiple processes, there are knife marks on the first bottom protective film, and the first bottom protective film is discharged. Then the die-cutting machine inputs the lower isolation protective film. At this time, the pressing order from top to bottom is the upper isolation protective film, the first layer of PI film, the fuse, the second layer of PI film, and the lower isolation protective film. The upper isolation protective film, the first layer of PI film, the fuse, the second layer of PI film, and the lower isolation protective film enter the second hot pressing roller device at the same time for secondary pressing until the fuse is completely bonded with the glue of the first layer of PI film and the second layer of PI film.

[0028] Furthermore, the gap between adjacent fuses is 3.12 mm±0.5 mm.

[0029] In some embodiments, in step three, the hot pressing temperature of the hot pressing device during the first hot pressing is 160°, and the roller speed is 1 m / min.

[0030] In some embodiments, in step five, the hot pressing temperature of the hot pressing device during the secondary hot pressing is 180°, and the roller speed is 1 m / min.

[0031] A stamped fuse, characterized in that the stamped fuse is made by the processing method described in any one of claims 1 to 9, the stamped fuse comprises a PI layer, a hot-pressed adhesive layer, and a rolled copper foil layer, the PI layer has two layers, each PI layer is provided with a hot-pressed adhesive layer on the inner side, each PI layer is connected to the rolled copper foil layer through a hot-pressed adhesive layer, one end of the rolled copper foil layer is a solder end, one end of the rolled copper foil layer is a fuse fusing end, and the connection between the solder end and the fuse fusing end is S-shaped. .

[0032] Beneficial effects of the invention: The invention provides a method for processing stamped fuses, which sequentially performs stamping of copper foil raw materials, primary shaping and coating of the fuses, primary hot pressing of the fuses, secondary shaping of the fuses, secondary hot pressing of the fuses, and winding of the finished fuses, so that the middle portion of the fuse is curved, so that the fuses are prevented from shifting due to thermal expansion and contraction during processing, and the processing accuracy is improved. The shapes of the first layer of PI film and the second layer of PI film are formed along the outer edge of the middle portion of the fuse, so that the double-sided force is effectively decomposed, and the structural strength of the fuse is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a schematic diagram of the processing steps of a stamping fuse processing method of the present invention.

[0034] Figure 2 It is a schematic diagram of the process flow of specific embodiment 1 of the present invention.

[0035] Figure 3 This is a schematic diagram of winding a finished fuse according to the specific embodiment 1 of the present invention.

[0036] Figure 4 This is a schematic diagram of the structure of the stamped fuse of Example 1.

[0037] Figure 5 This is a schematic diagram of the rolled copper foil layer structure of the stamped fuse of Example 1.

[0038] Figure 6 This is a schematic diagram of the PI layer structure of the stamped fuse of Example 1.

[0039] Figure 7 This is a schematic diagram of the connection structure of the PI layer, the hot-pressed adhesive layer, and the rolled copper foil layer of the stamped fuse of Example 1.

[0040] Main component symbols

[0041] PI layer 1, hot-pressed adhesive layer 2, rolled copper foil layer 3, solder end 4, fuse fusing end 5, fuse roll 6, multiple rows of solder holes 7, rectangular strip cut holes 8, fuse 9, die-cutting machine 10.

[0042] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0043] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0044] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0045] At the same time, the connections between components or systems are not intended to be limited to direct connections, rather, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0046] Embodiment 1:

[0047] like Figure 1 FIG. 1 is a schematic diagram of the processing steps of a punched fuse processing method of the present invention; Figure 2 As shown, it is a schematic diagram of the process flow of a specific embodiment 1 of the present invention; Figure 3 As shown, it is a schematic diagram of the winding of the finished fuse of the specific embodiment 1 of the present invention; Figure 4 As shown, it is a schematic diagram of the structure of the stamped fuse of Example 1; Figure 5 As shown, it is a schematic diagram of the rolled copper foil layer structure of the stamped fuse of Example 1; Figure 6 As shown, it is a schematic diagram of the PI layer structure of the stamped fuse of Example 1; Figure 7 The figure shows a schematic diagram of the connection structure of the PI layer, the hot-pressed adhesive layer, and the rolled copper foil layer of the stamped fuse of Example 1.

[0048] The tonnage of the punch press is 30T, the punch speed is 120 times / min, the hot pressing temperature of the hot pressing device is 160°, the roller speed is 1m / min during the first hot pressing, the hot pressing temperature of the hot pressing device is 180°, the roller speed is 1m / min during the second hot pressing, and the gap between adjacent fuses is 3.12mm±0.5mm.

[0049] A method for processing a stamped fuse, characterized in that it comprises the following steps:

[0050] Step 1: Punching copper foil raw materials, conveying the copper foil raw materials to the punching machine and punching them into multiple pieces of parallel connected fuses in sequence, and the multiple pieces of fuses 9 are wound into fuse coils 6 by a winding machine, wherein the middle part of the fuse 9 is a curve shape, and one end of the fuse 9 is punched with multiple rows of welding holes 7,

[0051] The first layer of PI film and the second layer of PI film are pre-cut, and holes are cut on the first layer of PI film and the second layer of PI film, and the cut holes are arranged corresponding to the multiple rows of welding holes 7;

[0052] Step one specifically includes punching the copper foil raw material, conveying the copper foil raw material to a punch press for a punching forming, punching the copper foil raw material into multiple pieces of parallel connected fuses 9 in sequence, the middle part of the fuse 9 is a curve, and the multiple pieces of fuses 9 are wound into a fuse roll 6 by a winder, and the multiple pieces of fuses 9 are wound into a fuse roll 6 together with protective paper by a winder, and the protective paper is used to prevent friction between the upper and lower layers of fuses.

[0053] The first layer of PI film is pre-cut, and rectangular strips of holes 8 are cut into the first layer of PI film by a circular knife mold of the lower hole cutting station of the die-cutting machine 10. The second layer of PI film is pre-cut, and rectangular strips of holes 8 are cut into the second layer of PI film by a circular knife mold of the upper hole cutting station of the die-cutting machine 10.

[0054] The pre-cut hole processing of the first layer of PI film is specifically as follows: the first bottom protective film is conveyed on the die-cutting machine 10, the first layer of PI film is laminated with the first bottom protective film, the adhesive layer of the first layer of PI film is far away from the first bottom protective film, and a protective paper is arranged above the adhesive layer of the first layer of PI film. The first layer of PI film is conveyed to the lower hole cutting station T1 of the die-cutting machine 10 through the first bottom protective film, and rectangular strip holes 8 are cut through the circular knife mold of the lower hole cutting station T1. The rectangular strip waste cut from the first layer of PI film is conveyed and discharged through the first discharge protective film, and the protective paper of the first layer of PI film away from the first bottom protective film is discharged as protective paper waste;

[0055] The second layer PI film pre-cutting process is specifically as follows: the second bottom protective film is conveyed on the die-cutting machine 10, the second layer PI film is laminated with the second bottom protective film, the second layer PI film is conveyed to the upper hole cutting station D12 of the die-cutting machine 10 through the second bottom protective film, and rectangular strip holes 8 are cut by the circular knife mold of the upper hole cutting station D12, and the rectangular strip waste cut from the second layer PI film is conveyed and discharged through the second discharge protective film;

[0056] Step 2: The fuse 9 is shaped and coated once, and the fuse roll 6 is transported to the primary cutting station of the die-cutting machine 10 for the first shaping and cutting, and the shaped fuse 9 is laminated with the first layer of PI film and the second layer of PI film, so that only the ends of the parallel connected fuses 9 are connected, and the cut fuse 9 waste is discharged;

[0057] Specifically, the fuse 9 is shaped and coated once, the fuse roll 6 is transported to the primary cutting station of the die-cutting machine 10 for the first shaping and cutting, and the shaped fuse 9 is laminated with the first layer of PI film and the second layer of PI film. The fuse 9 passes through the circular knife die so that only the ends of the parallel connected fuses 9 are connected to prevent the fuse 9 from shifting during subsequent processing due to thermal expansion and contraction, and the cut fuse 9 is discharged as waste.

[0058] The one-time shaping and coating of the fuse 9 is as follows: the fuse roll protective film is conveyed on the die-cutting machine 10, and the fuse roll 6 is conveyed to the primary cutting station T2 through the third protective film for the first shaping and cutting, and the shaping waste is discharged, and the fuse roll protective film continues to carry the one-time shaping and conveyed forward and firstly adheres to the first layer of PI film with pre-cut holes carried by the first bottom protective film, and then adheres to the second layer of PI film carried by the second protective film. After bonding, the fuse roll protective film and the second bottom protective film are discharged, and only the first bottom protective film is left to carry the first layer of PI film, the fuse 9, and the second layer of PI film for transportation.

[0059] Step 3: The fuse 9 is hot-pressed once. The double-sided film-coated fuse 9 is hot-pressed once by a first hot-pressing roller device until the fuse 9 is bonded to the first PI film layer and the second PI film layer;

[0060] Specifically, step three is to hot press the fuse 9 once, and the double-sided coated fuse 9 is hot pressed once through a hot pressing roller device until the fuse 9 is bonded to the first layer of PI film and the second layer of PI film, wherein the fuse 9 is arranged above the first layer of PI film, and the second layer of PI film is arranged above the fuse 9, and the terminal connecting portion of the fuse 9 protrudes from the edge of the first layer of PI film and the second layer of PI film, and the unconnected portion of the fuse 9 is completely wrapped by the first layer of PI film and the second layer of PI film, so as to protect the fuse 9 and assist in secondary shaping, and provide die-cutting positioning for the secondary shaping.

[0061] The double-sided coated fuse 9 is subjected to a hot pressing once through a hot pressing roller device. Specifically, the hot pressing roller device includes a hot pressing wheel D13, a hot pressing wheel D14, and a first bottom protective film carrying a first layer of PI film, the fuse 9, and a second layer of PI film into the hot pressing wheel D13 and the hot pressing wheel D14 for a hot pressing once.

[0062] Step 4: The fuse 9 is reshaped. The double-sided film-coated fuse 9 is transported to the secondary cutting station of the die-cutting machine 10 for secondary shaping and cutting, so that the connecting ends of the adjacent double-sided film-coated fuses 9 are separated, and the cut fuses 9, the first layer of PI film, and the second layer of PI film waste are discharged;

[0063] Step four is specifically, the fuse 9 is reshaped, the double-sided coated fuse 9 is conveyed to the circular knife mold of the secondary cutting station of the die-cutting machine 10 for secondary shaping and cutting, so that the adjacent double-sided coated fuse 9 connection ends are separated, and the cut fuse 9, the first layer PI film, and the second layer PI film waste are discharged, wherein the first layer PI film and the second layer PI film are formed along the outer edge of the middle part of the fuse 9, one end of the fuse 9 is the welding end, and the other end of the fuse 9 is the opening end. When the welding end or the opening end of the fuse 9 is subjected to force, since the shapes of the first layer PI film and the second layer PI film are formed along the outer edge of the middle part of the fuse 9, the double-sided force is effectively decomposed, so that the middle part of the fuse 9 is not easy to break.

[0064] The double-sided coated fuse 9 is transported to the circular knife mold of the secondary cutting station of the die-cutting machine 10 for secondary shaping and cutting. Specifically, the first bottom protective film carries the first layer of PI film, the fuse 9, and the second layer of PI film into the circular knife mold of the secondary cutting station T4 of the die-cutting machine 10 for secondary shaping and cutting, and the cut-off waste of the first layer of PI film, the second layer of PI film and the waste of the fuse 9 are discharged.

[0065] Step 5: The fuse 9 is subjected to secondary hot pressing. The fuse 9 after secondary shaping is subjected to secondary hot pressing with the first layer of PI film and the second layer of PI film through a second hot pressing roller device until the fuse 9 is completely bonded with the first layer of PI film and the second layer of PI film glue;

[0066] Step five is specifically as follows: the first bottom protective film carries the first layer of PI film, the fuse 9, and the second layer of PI film forward. At this time, the die-cutting machine 10 inputs the upper isolation protective film, and below the upper isolation protective film are the first layer of PI film, the fuse 9, and the second layer of PI film in sequence. At this time, due to the previous multiple processes, there are knife marks on the first bottom protective film, and the first bottom protective film is discharged. Then the die-cutting machine 10 inputs the lower isolation protective film. At this time, the pressing sequence from top to bottom is the upper isolation protective film, the first layer of PI film, the fuse 9, the second layer of PI film, and the lower isolation protective film. The upper isolation protective film, the first layer of PI film, the fuse 9, the second layer of PI film, and the lower isolation protective film enter the second hot pressing roller device at the same time for secondary pressing until the fuse 9 is completely bonded with the first layer of PI film and the second layer of PI film glue.

[0067] Step 6: Rolling up the finished fuse 9. The finished fuse 9 is rolled up by a winding machine.

[0068] A CCD inspection device is also provided in the stamping copper foil raw material. When the fuse 9 is broken in the curve shape in the middle, the punch press stops and alarms.

[0069] A stamped fuse includes a PI layer 1, a hot-pressed adhesive layer 2, and a rolled copper foil layer 3. The PI layer 1 has two layers, and a hot-pressed adhesive layer 2 is provided on the inner side of each PI layer 1. Each PI layer 1 is connected to the rolled copper foil layer 3 through a hot-pressed adhesive layer 2. One end of the rolled copper foil layer 3 is a solder end 4, and one end of the rolled copper foil layer 3 is a fuse fusing end 5. The connection between the solder end 4 and the fuse fusing end 5 is S-shaped.

[0070] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art, and several modifications and improvements may be made without departing from the concept of the present application, all of which belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only for illustration and are not intended to limit the present application. The actual protection scope of the present application shall be subject to the claims.

Claims

1. A method for processing a stamped fuse, characterized in that , including the following steps: Step 1: Punching copper foil raw materials, conveying the copper foil raw materials to a punching machine and punching them into multiple pieces of parallel connected fuses in sequence, and the multiple pieces of fuses are wound into fuse coils by a winding machine, wherein the middle part of the fuse is curved, and multiple rows of welding holes are punched at one end of the fuse; Step 2: The fuse is shaped and coated once. The fuse roll is transported to the primary cutting station of the die-cutting machine for the first shaping and cutting. The shaped fuse is coated with the first layer of PI film and the second layer of PI film after pre-cut holes, so that the cut holes are arranged correspondingly to the multiple rows of welding holes, so that only the ends of the parallel connected fuses are connected, and the cut fuse waste is discharged; Step 3: The fuse is hot pressed once. The double-sided film-coated fuse is hot pressed once by the first hot pressing roller device until the fuse is bonded to the first layer of PI film and the second layer of PI film; Step 4: Fuse secondary shaping: The double-sided coated fuse is transported to the secondary cutting station of the die-cutting machine for secondary shaping and cutting, so that the adjacent double-sided coated fuse connection ends are separated, and the cut fuse, the first layer of PI film, and the second layer of PI film waste are discharged; Step 5: The fuse is subjected to secondary hot pressing. The fuse after secondary shaping is subjected to secondary hot pressing with the first layer of PI film and the second layer of PI film through a second hot pressing roller device until the fuse is completely bonded with the first layer of PI film and the second layer of PI film glue; Step 6: Winding up the finished fuse. The finished fuse is rolled up by a winding machine.

2. The method for processing a stamped fuse according to claim 1, wherein: In step one, a CCD inspection device is also provided in the stamping copper foil raw material. When the curve in the middle of the fuse breaks, the punch press stops and alarms.

3. The method for processing a stamped fuse according to claim 1, wherein: Step one specifically includes punching copper foil raw materials, conveying the copper foil raw materials to a punch press for a punching process, punching the copper foil raw materials into multiple pieces of parallel connected fuses in sequence, the middle part of the fuse is a curve, the multiple pieces of fuses are wound into fuse rolls through a winder, the multiple pieces of fuses and protective paper are wound into fuse rolls through a winder, and the protective paper is used to prevent friction between the upper and lower layers of fuses.

4. The method for processing a stamped fuse according to claim 1, wherein: Specifically, step one is to pre-cut holes on the first layer of PI film, and the first layer of PI film is cut into rectangular strips by a circular knife mold of the lower hole cutting station of the die-cutting machine; the second layer of PI film is pre-cut holes, and the second layer of PI film is cut into rectangular strips by a circular knife mold of the upper hole cutting station of the die-cutting machine.

5. The method for processing a stamped fuse according to claim 1, wherein: Specifically, the fuse is shaped and coated once, the fuse roll is transported to the primary cutting station of the die-cutting machine for the first shaping and cutting, and the shaped fuse is laminated with the first layer of PI film and the second layer of PI film. The fuse passes through a circular knife die so that only the ends of the parallel connected fuses are connected to prevent the fuse from shifting during subsequent processing due to thermal expansion and contraction, and the cut fuse waste is discharged.

6. The method for processing a stamped fuse according to claim 1, wherein: Specifically, step three is to hot press the fuse once, and the double-sided coated fuse is hot pressed once through a hot pressing roller device until the fuse is bonded to the first layer of PI film and the second layer of PI film, wherein a fuse is arranged above the first layer of PI film, and a second layer of PI film is arranged above the fuse, and a connecting portion at the end of the fuse protrudes from the edges of the first layer of PI film and the second layer of PI film, and an unconnected portion of the fuse is completely wrapped by the first layer of PI film and the second layer of PI film, so as to protect the fuse and assist in secondary shaping, and provide die-cutting positioning for secondary shaping.

7. The method for processing a stamped fuse according to claim 1, wherein: Step four is specifically, the secondary shaping of the fuse. The double-sided coated fuse is conveyed to the circular knife mold of the secondary cutting station of the die-cutting machine for secondary shaping and cutting, so that the adjacent double-sided coated fuse connection ends are separated, and the cut fuse, the first layer of PI film, and the second layer of PI film waste are discharged, wherein the first layer of PI film and the second layer of PI film are formed along the outer edge near the middle of the fuse, one end of the fuse is the welding end, and the other end of the fuse is the opening end. When the welding end or the opening end of the fuse is subjected to force, since the shapes of the first layer of PI film and the second layer of PI film are formed along the outer edge of the middle of the fuse, the double-sided force is effectively decomposed, so that the middle of the fuse is not easy to break.

8. The method for processing a stamped fuse according to claim 1, wherein: In step three, the hot pressing temperature of the hot pressing device is 160° and the roller speed is 1 m / min during the first hot pressing.

9. The method for processing a stamped fuse according to claim 1, wherein: In step 5, during the secondary hot pressing, the hot pressing temperature of the hot pressing device is 180° and the roller speed is 1 m / min.

10. A stamped fuse, characterized in that: The stamped fuse is made by the processing method described in any one of claims 1 to 9. The stamped fuse includes a PI layer, a hot-pressed adhesive layer, and a rolled copper foil layer. The PI layer has two layers, and a hot-pressed adhesive layer is provided on the inner side of each PI layer. Each PI layer is connected to the rolled copper foil layer through a hot-pressed adhesive layer. One end of the rolled copper foil layer is a solder end, and one end of the rolled copper foil layer is a fuse fusing end. The fuse fusing end is S-shaped.

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