CN219567850U - Conductive foam component with window - Google Patents
Conductive foam component with window Download PDFInfo
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- CN219567850U CN219567850U CN202320863952.0U CN202320863952U CN219567850U CN 219567850 U CN219567850 U CN 219567850U CN 202320863952 U CN202320863952 U CN 202320863952U CN 219567850 U CN219567850 U CN 219567850U
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Abstract
The utility model relates to a conductive foam component with a window and a production process thereof. The conductive foam assembly comprises foam at an inner layer, a conductive cloth layer wrapped at the periphery of the foam, and an insulating film layer partially wrapped at the periphery of the conductive cloth layer, wherein a layer of conductive double-sided adhesive layer is locally attached to one surface of the conductive cloth layer without an insulating film, and at least one window for exposing the conductive cloth layer is formed in the insulating film layer. The utility model adopts a high-speed rotary die-cutting machine to produce a wrapped semi-finished product material belt, and sequentially passes through a wrapping jig, a thermoplastic shaping jig and a cooling shaping jig together with a strip-shaped foam material belt to finish wrapping, and finally, a circular cutter cutting machine provided with a visual identification camera is used for positioning and cutting to obtain a finished product. The utility model adopts a high-speed rotary die cutting process and an automatic package forming process to realize high-efficiency production, and is matched with a circular cutter cutting machine with a visual positioning system to accurately position and cut the product to a fixed length, thereby saving the cost and improving the precision of the product.
Description
Technical field:
the utility model relates to the technical field of film foam composite products, in particular to a conductive foam component with a window.
The background technology is as follows:
at present, electronic products such as computers, mobile phones, tablet computers and the like are increasingly precise in design and higher in size requirement, so that the requirements on various composite die-cutting components used in the electronic products are also higher and higher. In some electronic products, the foam component is wrapped by conductive double-sided adhesive tape and conductive cloth to realize the performances of adhesion, buffering, conductivity or shielding.
The conductive cloth wrapping foam component used in partial products can meet the use requirement by matching with an insulating film and arranging specific structures such as windows, and if the traditional wrapping assembly efficiency and the traditional wrapping assembly precision are not high, an efficient and high-precision production process is required to be designed specifically.
The utility model comprises the following steps:
the utility model aims to overcome the defects in the prior art and provides a conductive foam component with a window.
The technical scheme adopted by the utility model is as follows: the utility model provides a take cotton subassembly of window conductive foam, this conductive foam subassembly is including being located the cotton of bubble of inlayer, wrap up at the cotton peripheral conductive cloth layer of bubble, partly wrap up at the peripheral insulating film layer of conductive cloth layer, on the conductive cloth layer on the surface of no insulating film part attach have one deck conductive double faced adhesive tape, just offer at least one window that supplies conductive cloth layer to expose on the insulating film layer.
Further, the number of windows of each conductive foam component is 2, and the conductive foam component is square.
The utility model also provides a production process of the conductive foam component with the window, which comprises the following steps:
step a, producing a wrapped semi-finished product material belt by adopting a high-speed rotary die-cutting machine, wherein the wrapped semi-finished product material belt comprises a conductive cloth layer, an insulating film layer and a conductive double-sided adhesive layer which are attached to the conductive cloth layer at the same level and are not contacted with each other, a silica gel protective film layer attached to the outer surface of the insulating film layer, and a release film layer attached to the outer surface of the conductive double-sided adhesive layer;
firstly, compounding a bottom film material belt, a silica gel protective film material belt and a release film material belt from bottom to top, wherein the release surface of the release film material belt is upward, carrying out primary die cutting through a first circular knife die cutting roller group, cutting through the release film material belt and the silica gel protective film material belt from top to obtain four parallel first straight line dividing lines, respectively dividing the silica gel protective film material belt and the release film material belt into five material belts, and simultaneously forming three first positioning mark lines on the compound material belt;
sequentially compounding a conductive double-sided adhesive tape and a first transition release film tape on a release surface of a release film tape of the composite tape after the first die cutting, then carrying out a second die cutting through a second circular knife die cutting roller set, cutting through the first transition release film tape and the conductive double-sided adhesive tape from the upper part, cutting out a plurality of conductive double-sided adhesive contour lines which are arranged at intervals, then removing waste outside a frame of the first transition release film tape, and removing waste outside the frame of the conductive double-sided adhesive tape and four release film tapes outside the conductive double-sided adhesive tape through a first waste discharge tape to expose four silica gel protective film tapes formed by the first die cutting; simultaneously forming a second positioning mark line corresponding to the first positioning mark line; forming a visual positioning mark line on the release film material belt after the second die cutting, wherein one end of the visual positioning mark line is level with the outline of the conductive double-sided adhesive tape;
at this time, the composite material belt is sequentially from bottom to top: the device comprises a supporting bottom film material belt, five silica gel protective film material belts, a release film material belt, a plurality of conductive double-sided adhesive blocks arranged at intervals and a first transition release film block covered on the conductive double-sided adhesive blocks, wherein the release film material belt, the plurality of conductive double-sided adhesive blocks and the first transition release film block are sequentially attached to one silica gel protective film material belt at the most edge; the insulating film material belt and the second transition release film material belt are compounded above the compound material belt, a third round cutter die cutting roller set is used for carrying out a third die cutting, the second transition release film material belt and the insulating film material belt are cut through from the upper part of the third die cutting, contour lines on two sides of the insulating film and window contour lines which are arranged at intervals in the inside of the insulating film are cut out on the second transition release film material belt and the insulating film material belt, and a third positioning mark line corresponding to the first positioning mark line is formed at the same time; removing the second transition release film material belt waste and the insulating film material belt waste outside the contour lines of the two sides of the insulating film through the second waste discharge adhesive tape after the third die cutting, and removing the second transition release film waste in the contour lines of the window; then the third waste discharge adhesive tape is compounded, and the waste insulating film materials in the outline of the window are extracted by an extracting knife on a fourth circular knife die-cutting roller set and discharged along with the third waste discharge adhesive tape; removing the first transition release film block on the conductive double-sided adhesive block at the edge through the fourth waste discharge adhesive tape;
at this time, the composite material belt is sequentially from bottom to top: the device comprises a support bottom film material belt, five silica gel protective film material belts, a release film material belt, a plurality of conductive double-sided adhesive blocks arranged at intervals and an insulating film material belt with windows formed on the other four silica gel protective film material belts in an adhering manner, wherein the release film material belt, the conductive double-sided adhesive blocks and the insulating film material belts are sequentially adhered to one silica gel protective film material belt at the most edge of the five silica gel protective film material belts; compounding a conductive cloth belt above the compound material belt, wherein one surface of the conductive cloth belt with the hot melt adhesive faces upwards; then, carrying out a fifth die cutting by a fifth circular knife die cutting roller set, cutting out contour lines on two sides of the conductive cloth and cutting through a silica gel protective film material belt, wherein the range between the contour lines on two sides of the conductive cloth completely covers the insulating film material belt, the conductive double-sided adhesive block and the release film material belt; then, stripping the backing film material belt from the lower part, simultaneously stripping the silica gel protective film material belt waste and the release film material belt waste outside the contour lines of the two sides of the conductive cloth, wherein the material belt is a conductive cloth belt, an insulating film material belt with a window, a conductive double-sided adhesive block adhered to the lower surface of the conductive cloth belt in the same layer as the insulating film material belt, a silica gel protective film material belt adhered to the lower surface of the insulating film material belt, and a release film material belt adhered to the lower surface of the conductive double-sided adhesive block from top to bottom in sequence, and winding to form a wrapped semi-finished product material belt;
step b: cutting the foam material belt into strip foam material belts to be wrapped, enabling conductive cloth belts on the upper and lower wrapping semi-finished product material belts to face upwards according to the strip foam material belts, sequentially passing through a wrapping jig, a thermoplastic shaping jig and a cooling shaping jig, enabling the conductive cloth wrapped on the wrapping semi-finished product material belts to wrap the strip foam material belts, carrying out hot melting lamination on the conductive cloth belts and the strip foam material belts, cooling and shaping, completing wrapping, and finally carrying out positioning cutting through a circular cutter splitting machine provided with a visual recognition camera to obtain a finished product.
In the above production process, in the step a, four first straight line dividing line cutting edges corresponding to the first straight line dividing line and three first positioning mark line cutting edges corresponding to the first positioning mark line are respectively a 1# positioning mark line cutting edge, a 2# positioning mark line cutting edge and a 3# positioning mark line cutting edge on the knife roller of the first circular knife die-cutting roller set;
the knife rolls of the second circular knife die-cutting roller group are provided with conductive double-sided adhesive contour line cutting edges corresponding to the conductive double-sided adhesive contour lines and a second positioning mark line cutting edge corresponding to a second positioning mark line, and the positions of the second positioning mark line cutting edges correspond to those of the No. 1 positioning mark line cutting edges; the knife roller of the second circular knife die-cutting roller group is also provided with a visual positioning marking line cutting edge corresponding to the visual positioning marking line;
the knife rolls of the third circular knife die-cutting roller group are provided with an insulating film two-side contour line cutting edge and a window contour line cutting edge which respectively correspond to the insulating film two-side contour lines and the window contour lines, and a third positioning mark line cutting edge which corresponds to a third positioning mark line, and the position of the third positioning mark line cutting edge corresponds to that of the No. 2 positioning mark line cutting edge;
the knife roller of the fourth circular knife die-cutting roller group is provided with an extraction knife which corresponds to the position of the window contour line and has a smaller size than the window contour line; the knife roller of the fourth circular knife die-cutting roller group is also provided with a fourth positioning mark line knife edge, the position of which corresponds to the position of the third positioning mark line knife edge, and the position of the fourth positioning mark line knife edge corresponds to the position of the No. 2 positioning mark line knife edge;
the knife rolls of the fifth circular knife die-cutting roll group are provided with two contour line cutting edges on two sides of the conductive cloth corresponding to the contour lines on two sides of the conductive cloth and a fifth positioning mark line cutting edge which is positioned corresponding to the 3# positioning mark line cutting edge.
In the production process step b, in the wrapped and shaped material belt, the release film material belt is exposed upwards, and the circular cutter splitting machine provided with the visual identification camera performs first cutter positioning splitting through identifying the visual positioning marking line on the release film material belt, and then automatic positioning splitting is performed according to the set length.
The blade thickness of the circular cutter splitting machine is less than or equal to 0.5 times of dimensional tolerance.
The thickness of the blade of the circular cutter splitting machine is less than or equal to 0.2mm.
The insulating film of the conductive foam component is provided with the window so that the conductive cloth in the specific shape area is exposed to meet the use requirement; the high-speed rotary die cutting process and the automatic wrapping and forming process are adopted to realize high-efficiency production, a circular cutter splitting machine with a visual positioning system is matched to perform accurate positioning and fixed-length splitting, no clearance is provided for cutting, waste is almost avoided, the raw material utilization rate is improved, the cost is saved, the material positioning in the using process is not needed, the processing process is simplified, the same long-strip foam semi-finished product only needs to be visually positioned by a first cutter, the subsequent equidistant splitting is performed, and the product precision is improved.
Description of the drawings:
FIGS. 1 and 1-1 are an overall perspective view and an exploded view, respectively, of a windowed conductive foam assembly of the present utility model;
FIGS. 2 and 3 are side and enlarged partial views of a windowed conductive foam assembly of the present utility model;
FIG. 4 is an exploded view of the wrapped semi-finished web of the present utility model;
FIG. 5 is a flow chart of a process for producing a wrapped semi-finished material strip according to the present utility model, wherein the letter U represents a winding roller set for winding waste;
6-1, 6-2, 6-3, 6-4 and 6-5 are respectively schematic knife roller unfolding diagrams and die cutting effect diagrams of the circular knife die cutting roller set in the production process of the utility model;
fig. 6-6 is a schematic diagram of the superposition of the die cutting effects of fig. 6-1 to 6-5.
The specific embodiment is as follows:
as shown in fig. 1-3, the utility model provides a conductive foam assembly with a window, which comprises foam 1 positioned in an inner layer, a conductive cloth layer 2 wrapped around the foam 1, and an insulating film layer 3 partially wrapped around the conductive cloth layer 2, wherein a conductive double-sided adhesive layer 4 is locally attached to a surface of the conductive cloth layer 2 without an insulating film, and at least one window 31 for exposing the conductive cloth layer 2 is arranged on the insulating film layer 3. The foam 1 is of a strip shape with a substantially rectangular cross section, the conductive cloth layer 2 completely wraps the foam 1 along the outer side wall of the strip shape, and two end surfaces of the foam 1 are exposed; the insulating film layer 3 partially wraps the outer surface of the conductive cloth layer 2, in this embodiment, the insulating film layer 3 partially wraps three side surfaces, and one side surface and two end surfaces are exposed; the number of windows 31 in each module is 2, and is substantially square.
The utility model also provides a production process of the conductive foam component with the window, which comprises the following steps:
step a, producing a wrapped semi-finished product material belt by adopting a high-speed rotary die-cutting machine, wherein the wrapped semi-finished product material belt comprises a conductive cloth layer 2, an insulating film layer 3 and a conductive double-sided adhesive layer 4 which are attached to the conductive cloth layer 2 in the same layer and are not contacted with each other, a silica gel protective film layer 5 attached to the outer surface of the insulating film layer 3, and a release film layer 6 attached to the outer surface of the conductive double-sided adhesive layer 4, as shown in figures 4, 5 and 6-1 to 6-6;
firstly, compounding a bottom-supporting film material belt T1, a silica gel protective film material belt B1 (stripping a self-carrying film B11) and a release film material belt L1 from bottom to top, carrying out primary die cutting on the release film material belt L1 with a release surface facing upwards through a first circular knife die cutting roller set M1, cutting through the release film material belt L1 and the silica gel protective film material belt B1 from top to top, cutting out four parallel first straight line dividing lines M101, respectively dividing the silica gel protective film material belt B1 and the release film material belt L1 into five material belts, and simultaneously forming three first positioning mark lines M102 on the compound material belt;
sequentially compounding a conductive double-sided adhesive tape S1 and a first transition release film tape G1 on a release surface of a release film tape L1 of the composite tape after the first die cutting, then carrying out a second die cutting through a second circular cutter die cutting roller set M2, cutting through the first transition release film tape G1 and the conductive double-sided adhesive tape S1 from the release film tape, cutting out a plurality of conductive double-sided adhesive contour lines M201 which are arranged at intervals, then removing waste outside a frame of the first transition release film tape G1, and removing waste outside the frame of the conductive double-sided adhesive tape S1 and four release film tapes outside the conductive double-sided adhesive tape S1 through a first waste discharge tape P1 to expose four silica gel protective film tapes formed by the first die cutting; simultaneously forming a second positioning mark line M202 corresponding to the first positioning mark line M102; the second die cutting is carried out, a visual positioning mark line M203 is formed on the release film material belt, and one end of the visual positioning mark line M203 is leveled with the position of the conductive double-sided adhesive contour line M201;
at this time, the composite material belt is sequentially from bottom to top: the method comprises the steps of sequentially attaching a release film material belt L1, a plurality of conductive double-sided adhesive blocks arranged at intervals and a first transition release film block covered on the conductive double-sided adhesive blocks on a support film material belt T1, five silica gel protective film material belts B1 and one silica gel protective film material belt B1 at the most edge; the insulating film material belt J1 and the second transition release film material belt G2 are compounded above the compound material belt, a third die cutting is carried out through a third circular cutter die cutting roller set M3, the second transition release film material belt G2 and the insulating film material belt J1 are cut through from the upper part of the third die cutting, profile lines M301 on two sides of an insulating film and window profile lines M302 which are arranged at intervals in the interior are cut out from the second transition release film material belt G2 and the insulating film material belt J1, and a third positioning mark line M303 corresponding to the first positioning mark line M102 is formed at the same time; the waste material of the second transition release film material belt G2 and the waste material of the insulating film material belt J1 except the contour lines M301 on the two sides of the insulating film are discharged through the second waste discharge adhesive tape P2 after the third die cutting, and the waste material of the second transition release film in the contour lines M302 of the window is discharged; after the third waste discharge adhesive tape P3 is compounded, extracting the waste insulating film material within the window outline M302 by an extracting knife M401 on a fourth circular knife die-cutting roller group M4, and discharging the waste insulating film material along with the third waste discharge adhesive tape P3; removing the first transition release film block on the conductive double-sided adhesive block at the edge through a fourth waste discharge adhesive tape P4;
at this time, the composite material belt is sequentially from bottom to top: the device comprises a supporting film material belt T1, five silica gel protective film material belts B1, a release film material belt L1, a plurality of conductive double-sided adhesive blocks arranged at intervals and an insulating film material belt J1 with windows formed on the other four silica gel protective film material belts B1, wherein the release film material belt L1, the conductive double-sided adhesive blocks and the insulating film material belts J1 are sequentially attached to one silica gel protective film material belt B1 at the most edge of the five silica gel protective film material belts; a conductive cloth belt D1 is compounded above the composite material belt, and one surface of the conductive cloth belt D1 with the hot melt adhesive faces upwards; then, carrying out a fifth die cutting by a fifth circular cutter die cutting roller set M5, cutting out contour lines M501 on two sides of the conductive cloth, cutting through a silica gel protective film material belt B1, and completely covering an insulating film material belt J1, a conductive double-sided adhesive block and a release film material belt L1 in a range between the contour lines M501 on two sides of the conductive cloth; then, stripping the backing film material belt T1 from the lower part, simultaneously attaching and stripping the silica gel protective film material belt waste and the release film material belt waste except the contour lines M501 on the two sides of the conductive cloth, wherein the material belt is sequentially a conductive cloth belt D1, an insulating film material belt J1 with a window, a conductive double-sided adhesive block adhered to the lower surface of the conductive cloth belt D1 in the same layer as the insulating film material belt J1, a silica gel protective film material belt B1 adhered to the lower surface of the insulating film material belt J1, and a release film material belt L1 adhered to the lower surface of the conductive double-sided adhesive block from top to bottom, and winding to form a wrapping semi-finished product material belt Z1;
step b: cutting the foam material belt into strip foam material belts to be wrapped, wherein the strip foam material belts are arranged at the upper part and the lower part of the wrapping semi-finished product material belt, the conductive cloth belts on the strip foam material belts are upwards, and sequentially pass through a wrapping jig, a thermoplastic shaping jig and a cooling shaping jig together, so that the strip foam material belts are wrapped by the conductive cloth of the wrapping semi-finished product material belt, the strip foam material belts are subjected to hot melting bonding by utilizing hot melt adhesive on the conductive cloth belts and the strip foam material belts, and then are subjected to cooling shaping, so that the wrapping is completed, finally, positioning cutting is carried out by a circular cutter cutting machine provided with a visual recognition camera, a release film is attached on a conductive double-sided adhesive layer of a window conductive foam assembly of the finished product, and a silica gel protective film is attached on an insulating film layer;
the total width of the wrapping semi-finished product material belt, namely the width of the conductive cloth belt is equivalent to the perimeter of the section of the foam material belt to be wrapped, and the foam is just completely wrapped.
In the above production process, in the step a, four first straight line dividing line cutting edges R101 corresponding to the first straight line dividing line M101 and three first positioning mark line cutting edges R102 corresponding to the first positioning mark line M102 are respectively a 1# positioning mark line cutting edge, a 2# positioning mark line cutting edge and a 3# positioning mark line cutting edge;
the cutter roller of the second circular cutter die-cutting roller group M2 is provided with a conductive double-sided adhesive contour line cutting edge R201 corresponding to the conductive double-sided adhesive contour line M201 and a second positioning mark line cutting edge R202 corresponding to the second positioning mark line M202, and the position of the second positioning mark line cutting edge R202 corresponds to the position of the No. 1 positioning mark line cutting edge; and is also provided with
The knife roller of the second circular knife die-cutting roller group M2 is also provided with a visual positioning marking line cutting edge R303 corresponding to the visual positioning marking line M203;
the knife rolls of the third circular knife die-cutting roller group M3 are provided with an insulating film two-side contour line cutting edge R301 and a window contour line cutting edge R302 which respectively correspond to the insulating film two-side contour line M301 and the window contour line M302, and a third positioning mark line cutting edge R303 which corresponds to the third positioning mark line M303, and the position of the third positioning mark line cutting edge R303 corresponds to the position of the No. 2 positioning mark line cutting edge;
the knife roller of the fourth circular knife die-cutting roller group M4 is provided with an extracting knife M401 which corresponds to the position of the window contour line M302 and has a smaller size than the window contour line; the knife roller of the fourth circular knife die-cutting roller group M4 is also provided with a fourth positioning mark line cutting edge R402, the position of which corresponds to the position of the third positioning mark line cutting edge R303, and the position of the fourth positioning mark line cutting edge R402 corresponds to the position of the No. 2 positioning mark line cutting edge;
the knife roller of the fifth circular knife die-cutting roller group M5 is provided with two conductive cloth side contour line cutting edges R501 corresponding to the contour lines M501 on the two sides of the conductive cloth and a fifth positioning mark line cutting edge R502 corresponding to the 3# positioning mark line cutting edge.
In the process step b, the wrapping jig, the thermoplastic shaping jig and the cooling shaping jig can be finished by adopting the wrapping jig, the thermoplastic shaping assembly, the cold-setting assembly and the like disclosed in the general cold-hot forming wrapping equipment of Chinese patent publication No. CN218777140U filed by the inventor; or by adopting a hot-melt wrapping jig disclosed in a hot-melt wrapping jig of Chinese patent publication No. CN218227946U of the inventor, and the like, and therefore, the description is not repeated here.
In the production process step b, in the wrapped and shaped material belt, the release film material belt is exposed upwards, and the circular cutter splitting machine provided with the visual identification camera performs first cutter positioning splitting through identifying the visual positioning marking line on the release film material belt, and then automatic positioning splitting is performed according to the set length.
The thickness of the blade of the circular cutter splitting machine is less than or equal to 0.5 times of dimensional tolerance, and the thickness of the blade is preferably less than or equal to 0.2mm so as to meet the splitting precision requirement.
The insulating film of the conductive foam component is provided with the window so that the conductive cloth in the specific shape area is exposed to meet the use requirement; the high-speed rotary die cutting process and the automatic wrapping and forming process are adopted to realize high-efficiency production, a circular cutter splitting machine with a visual positioning system is matched to perform accurate positioning and fixed-length splitting, no clearance is provided for cutting, waste is almost avoided, the raw material utilization rate is improved, the cost is saved, the material positioning in the using process is not needed, the processing process is simplified, the same long-strip foam semi-finished product only needs to be visually positioned by a first cutter, the subsequent equidistant splitting is performed, and the product precision is improved.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.
Claims (2)
1. The utility model provides a take window conductive foam subassembly which characterized in that: the conductive foam assembly comprises foam at an inner layer, a conductive cloth layer wrapped at the periphery of the foam, and an insulating film layer partially wrapped at the periphery of the conductive cloth layer, wherein a layer of conductive double-sided adhesive layer is locally attached to one surface of the conductive cloth layer without an insulating film, and at least one window for exposing the conductive cloth layer is formed in the insulating film layer.
2. The windowed conductive foam assembly of claim 1, wherein: the number of windows of each conductive foam component is 2, and the conductive foam component is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320863952.0U CN219567850U (en) | 2023-04-17 | 2023-04-17 | Conductive foam component with window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320863952.0U CN219567850U (en) | 2023-04-17 | 2023-04-17 | Conductive foam component with window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219567850U true CN219567850U (en) | 2023-08-22 |
Family
ID=87654957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320863952.0U Active CN219567850U (en) | 2023-04-17 | 2023-04-17 | Conductive foam component with window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219567850U (en) |
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2023
- 2023-04-17 CN CN202320863952.0U patent/CN219567850U/en active Active
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