CN116442323A - Waste discharge method for die-cut FDC copper foil - Google Patents
Waste discharge method for die-cut FDC copper foil Download PDFInfo
- Publication number
- CN116442323A CN116442323A CN202310345819.0A CN202310345819A CN116442323A CN 116442323 A CN116442323 A CN 116442323A CN 202310345819 A CN202310345819 A CN 202310345819A CN 116442323 A CN116442323 A CN 116442323A
- Authority
- CN
- China
- Prior art keywords
- copper foil
- die
- cut
- waste
- fdc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 239000011889 copper foil Substances 0.000 title claims abstract description 111
- 239000002699 waste material Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims description 35
- 238000007599 discharging Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention provides a waste discharge method of die-cut FDC copper foil, which is characterized in that a release film is arranged in the lower area of a formed copper foil, so that the stripping force of the copper foil and a process protection film is reduced, and the waste of the die-cut copper foil is stably and reliably discharged when the waste is discharged. According to the shape of the product copper foil, a release film is arranged between the copper foil and a bottom protection film before the copper foil is die-cut, the release film completely covers the shape of the copper foil, and is expanded outwards by a set distance, most of the surface area of the copper foil to be die-cut to form waste is still covered on the bottom protection film, the copper foil is die-cut downwards through a copper foil cutting die, and then the copper foil waste is discharged through the protection film.
Description
Technical Field
The invention relates to the technical field of die cutting methods, in particular to a waste discharging method for die-cutting FDC copper foil.
Background
The FDC product is a flexible printed circuit board copper foil flat cable manufactured by using a die cutting process, the structure is shown in figure 1, the structure is mainly a PSA+PI thermosetting film+CU+PI thermosetting film, the product has a plurality of structural layers, a layer of copper foil is arranged in the middle, the existing copper foil is directly obtained by one-time cutting die cutting during manufacturing, however, when the FDC product is actually manufactured, a local copper foil is shown in figure 2, a shadow area is a product, a blank area is waste, the product size is too large, meanwhile, the middle copper foil size of the product is large or small, the minimum copper foil width is 0.25mm, and the maximum copper foil width is 40.08mm, and the existing single-cutter forming die cutting cannot reliably discharge waste at the subsequent time.
Therefore, development of a die-cutting waste discharge method applicable to FDC copper foil is urgently needed.
Disclosure of Invention
In view of the above problems, the invention provides a waste discharging method of die-cut FDC copper foil, which is characterized in that a release film is arranged in a lower area of a formed copper foil, so that the stripping force of the copper foil and a process protection film is reduced, and the waste of the die-cut copper foil is stably and reliably discharged during waste discharge.
A waste discharge method of a die-cut FDC copper foil is characterized by comprising the following steps of: according to the shape of the product copper foil, a release film is arranged between the copper foil and a bottom protection film before the copper foil is die-cut, the release film completely covers the shape of the copper foil, and is expanded outwards by a set distance, most of the surface area of the copper foil to be die-cut to form waste is still covered on the bottom protection film, the copper foil is die-cut downwards through a copper foil cutting die, and then the copper foil waste is discharged through the protection film.
It is further characterized by:
the release film is compounded on the bottom protective film and conveyed forwards, and then is half-cut by a cutting die of a shielding area which is profiled on the copper foil forming form, so that the release film completely covers the finally formed copper foil form and extends outwards for a set distance;
discharging the punched release film waste from the production line through a first intermediate protective film, and then pressing the copper foil on the surfaces of the release film and the bottom protective film, so that the bottom of the final forming area of the copper foil is pressed on the release film;
then die cutting of the copper foil is completed through a copper foil cutting die, and waste discharge operation of copper foil scraps is completed through a second intermediate protective film;
the shielding area formed by the release film is formed by expanding the boundary of the finally formed copper foil outwards by 0.4 mm-0.8 mm;
preferably, the shielding area formed by the release film is formed by expanding the boundary of the finally formed copper foil outwards by 0.5mm;
the bottom protective film is specifically a protective film with the thickness of 60 mu m;
the release film is specifically a PET release film;
the first middle protective film and the second middle protective film are the same material protective film and are 60 mu m thick protective films;
the first middle protective film, the second middle protective film and the bottom protective film are of the same type, so that the types of materials required by the whole operation are relatively less, and the classified storage cavities are reduced.
After the invention is adopted, a procedure is added in the copper foil scrap area before the copper foil is die-cut according to the shape of the final copper foil of the product, a cutting die is used for die-cutting a release film serving as a shielding layer, the release film is left between the copper foil and the bottom protection film, the relative stripping force between the release film and the bottom protection film when the copper foil is discharged is reduced, the shape of the release film serving as the shielding layer imitates the size of the scrap area, the shielding size is expanded outwards by a set distance relative to the copper foil scrap, and the copper foil is attached for die-cutting after the shielding layer is die-cut, so that when the waste is discharged, the waste cannot be manufactured due to the fact that the copper foil scrap and the bottom protection film are large in relative stripping force; the release film is arranged in the lower area of the formed copper foil, so that the stripping force of the copper foil and the process protection film is reduced, and the waste copper foil after die cutting is stably and reliably discharged when the waste copper foil is discharged.
Drawings
FIG. 1 is a schematic diagram of a product manufactured according to the present invention;
FIG. 2 is an enlarged view of a portion of a copper foil corresponding to the product of the present invention;
FIG. 3 is a schematic diagram of a process flow according to the present invention;
FIG. 4 is a partial schematic view of a masking zone cutting die suitable for use in the present invention;
fig. 5 is a partial schematic view of a copper foil cutting die suitable for use in the present invention.
Detailed Description
Waste discharge method of die-cut FDC copper foil is shown in figures 3-5: according to the shape of the product copper foil, a release film is arranged between the copper foil and a bottom protection film before the copper foil is die-cut, the release film completely covers the shape of the copper foil, and is expanded outwards by a set distance, most of the surface area of the copper foil to be die-cut to form waste is still covered on the bottom protection film, the copper foil is die-cut downwards through a copper foil cutting die, and then the copper foil waste is discharged through the protection film.
The specific process flow is as follows:
the release film is compounded on the bottom protective film and conveyed forward, and then is half-cut by a shielding area cutting die (see figure 4) which is profiled on the copper foil forming form, so that the release film completely covers the final formed copper foil form and expands outwards by 0.5mm;
discharging the punched release film waste from the production line through a first intermediate protective film, and then pressing the copper foil on the surfaces of the release film and the bottom protective film, so that the bottom of the final forming area of the copper foil is pressed on the release film;
the die cutting of the copper foil is then completed by a copper foil die (see fig. 5), and the waste disposal of the copper foil scrap is then completed by a second intermediate protective film.
In the specific implementation, the bottom protective film, the first middle protective film and the second middle protective film are protective films with the thickness of 60 mu m; the release film is specifically a PET release film.
The working principle is as follows: according to the shape of the final copper foil of the product, a procedure is added in the copper foil waste material area before the copper foil is die-cut, a cutting die is used for die-cutting a release film to be used as a shielding layer, the release film is left between the copper foil and the bottom protective film, the relative stripping force between the release film and the bottom protective film when the copper foil is discharged is reduced, the shape of the release film to be used as the shielding layer imitates the size of the waste material area, the shielding size is outwards expanded for a set distance relative to the copper foil waste material, the copper foil is attached to the shielding layer after the shielding layer is die-cut for die-cutting, and therefore when the waste is discharged, waste material fracture cannot be produced due to the fact that the relative stripping force between the copper foil waste material and the bottom protective film is large; the release film is arranged in the lower area of the formed copper foil, so that the stripping force of the copper foil and the process protection film is reduced, and the waste copper foil after die cutting is stably and reliably discharged when the waste copper foil is discharged.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A waste discharge method of a die-cut FDC copper foil is characterized by comprising the following steps of: according to the shape of the product copper foil, a release film is arranged between the copper foil and a bottom protection film before the copper foil is die-cut, the release film completely covers the shape of the copper foil, and is expanded outwards by a set distance, most of the surface area of the copper foil to be die-cut to form waste is still covered on the bottom protection film, the copper foil is die-cut downwards through a copper foil cutting die, and then the copper foil waste is discharged through the protection film.
2. The method for discharging waste of die-cut FDC copper foil as claimed in claim 1, wherein: and the release film is compounded on the bottom protection film and conveyed forwards, and then is half-cut by a cutting die of a shielding area which is profiled in the copper foil forming form, so that the release film completely covers the finally formed copper foil form and is expanded outwards for a set distance.
3. The method for discharging waste of die-cut FDC copper foil as claimed in claim 2, wherein: and then discharging the punched release film waste from the production line through the first intermediate protective film, and then pressing the copper foil on the surfaces of the release film and the bottom protective film, so that the bottom of the final forming area of the copper foil is pressed on the release film.
4. The method for removing waste from die-cut FDC copper foil as in claim 3, wherein: and then die cutting of the copper foil is completed through a copper foil cutting die, and then waste discharge operation of copper foil scraps is completed through a second intermediate protective film.
5. The method for discharging waste of die-cut FDC copper foil as claimed in claim 2, wherein: and a shielding area formed by the release film is formed by expanding the boundary of the finally formed copper foil outwards by 0.4 mm-0.8 mm.
6. The method for disposing of the die-cut FDC copper foil according to claim 5, wherein: and a shielding area formed by the release film is formed by expanding the boundary of the finally formed copper foil outwards by 0.5mm.
7. The method for discharging waste of die-cut FDC copper foil as claimed in claim 2, wherein: the bottom protective film is specifically a 60 μm thick protective film.
8. The method for discharging waste of die-cut FDC copper foil as claimed in claim 2, wherein: the release film is specifically a PET release film.
9. The method for disposing of the die-cut FDC copper foil according to claim 4, wherein: the first middle protective film and the second middle protective film are made of the same material and are 60 mu m thick.
10. The method for removing waste from die cut FDC copper foil as in claim 9, wherein: the first middle protective film, the second middle protective film and the bottom protective film are the same type of protective films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310345819.0A CN116442323A (en) | 2023-04-03 | 2023-04-03 | Waste discharge method for die-cut FDC copper foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310345819.0A CN116442323A (en) | 2023-04-03 | 2023-04-03 | Waste discharge method for die-cut FDC copper foil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116442323A true CN116442323A (en) | 2023-07-18 |
Family
ID=87135043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310345819.0A Pending CN116442323A (en) | 2023-04-03 | 2023-04-03 | Waste discharge method for die-cut FDC copper foil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116442323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117393229A (en) * | 2023-09-19 | 2024-01-12 | 安洁无线科技（苏州）有限公司 | LOD flat cable processing method |
-
2023
- 2023-04-03 CN CN202310345819.0A patent/CN116442323A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117393229A (en) * | 2023-09-19 | 2024-01-12 | 安洁无线科技（苏州）有限公司 | LOD flat cable processing method |
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