Material-saving production process for conductive double-sided adhesive components

Abstract

The present invention relates to a production process for a material-saving conductive double-sided adhesive assembly. The conductive double-sided adhesive assembly comprises a conductive fabric layer, with a first conductive double-sided adhesive layer and a second conductive double-sided adhesive layer respectively attached to the front and back sides of the conductive fabric layer. The first conductive double-sided adhesive layer and the second conductive double-sided adhesive layer are arranged in a staggered manner, that is, the conductive fabric layer also has a gap portion that is not covered with the conductive double-sided adhesive on both sides. The production process of the conductive double-sided adhesive assembly is carried out using a high-speed rotary die-cutting machine. The present invention precisely controls the die pitch and the material strip travel speed to asynchronously cut the conductive double-sided adhesive raw materials on the front and back sides into shapes of specified sizes, and simultaneously forms a contour line on one side, which is spaced and falls at specified positions on the conductive fabric strip. This optimizes the processing steps, reduces the number of required molds, and avoids the consumption of conductive double-sided adhesive material in the gap portion of the product, thereby reducing processing costs and effectively improving material utilization.

Description

Technical Field

[0001] The invention relates to the technical field of die-cut components for electronic products, in particular to a production process for a conductive double-sided adhesive component that saves materials. Background Art

[0002] Die-cut components are widely used in electronic products or equipment. Some electronic devices require the use of composite conductive components including conductive double-sided tape and conductive cloth to meet the needs of component bonding, conductivity, and electromagnetic shielding. Conductive double-sided tape is more expensive than other raw materials. When producing certain irregular double-sided tape components, it is necessary to save materials and reduce costs. The conventional solution is to cut the rolled double-sided tape raw material into rolls of smaller width, and then unroll it along the production tape direction for die-cutting. However, in this solution, the material in the gap between the contour edges of two adjacent products will become waste, resulting in a large waste of conductive double-sided tape material. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a production process for a conductive double-sided adhesive assembly that saves materials.

[0004] The technical solution adopted by the present invention is: a production process for a material-saving conductive double-sided adhesive assembly, characterized in that: the conductive double-sided adhesive assembly has a conductive fabric layer, and a first conductive double-sided adhesive layer and a second conductive double-sided adhesive layer are attached to the front and back sides of the conductive fabric layer respectively, and the first conductive double-sided adhesive layer and the second conductive double-sided adhesive layer are arranged in a staggered manner, that is, the conductive fabric layer has a gap portion on both sides that is not covered by the conductive double-sided adhesive, that is, in a direction perpendicular to the conductive fabric layer, the projections of the first conductive double-sided adhesive layer and the second conductive double-sided adhesive layer have no overlapping area; the first conductive double-sided adhesive layer The outer side and both ends of the top adhesive layer coincide with the contour lines of one side of the conductive fabric layer and the contour lines of the corners at both ends of the side. The outer side and both ends of the second conductive double-sided adhesive layer coincide with the contour lines of the other side of the conductive fabric layer and the contour lines of the corners at both ends of the side. The outer surface of the first conductive double-sided adhesive layer is laminated with a first product release film, and the first product release film completely covers the first conductive double-sided adhesive layer and has a protruding handle portion only at one end. The outer surface of the second conductive double-sided adhesive layer is laminated with a second product release film, and the second product release film completely covers the second conductive double-sided adhesive layer and the conductive fabric layer.

[0005] The production process of the conductive double-sided tape assembly is carried out using a high-speed rotary die-cutting machine and includes the following steps:

[0006] Step a: performing a first asynchronous die-cutting on the first product release film strip and the first conductive double-sided adhesive strip using a first asynchronous die-cutting roller group, cutting the contour lines of the first product release film and the first conductive double-sided adhesive tape on the side facing the interior of the product, and forming the first product release film semi-finished product and the first conductive double-sided adhesive semi-finished product on the strip at equal intervals, and simultaneously cutting the contour line of the handle end of the first product release film parallel to the direction of travel of the strip, and discharging the waste;

[0007] Step b, compounding the first product release film semi-finished product and the first conductive double-sided adhesive semi-finished product with the conductive fabric tape to form a first conductive double-sided adhesive assembly semi-finished product;

[0008] Step c: performing a second asynchronous die-cutting on the second conductive double-sided adhesive tape using a second asynchronous die-cutting roller group to form a second conductive double-sided adhesive semi-finished product on the tape at equal intervals, while simultaneously cutting out a contour line of the second conductive double-sided adhesive on the side facing the interior of the product and discharging the product as waste; then laminating the second conductive double-sided adhesive semi-finished product with the first conductive double-sided adhesive assembly semi-finished product, so that the second conductive double-sided adhesive semi-finished product and the first conductive double-sided adhesive assembly semi-finished product are distributed in an alternating and staggered manner on the front and back sides of the conductive fabric tape, thereby forming a second conductive double-sided adhesive assembly semi-finished product;

[0009] Step d, synchronously die-cutting the second conductive adhesive component semi-finished product by a third die-cutting roller group, punching out the outer contour line of the product, and discharging waste;

[0010] Step e: transfer and cut to obtain the finished product.

[0011] Furthermore, step a is specifically as follows: compounding the first conductive double-sided adhesive tape with the first product release film tape and the first transition bottom film tape in sequence, peeling off the first conductive double-sided adhesive tape from the top and then compounding the first transition release film tape, performing the first asynchronous die-cutting through the first asynchronous die-cutting roller group and removing the first transition bottom film tape, the first asynchronous die-cutting causes the first product release film tape and the first conductive double-sided adhesive tape to be cut into segments and arranged at equal intervals on the first bottom film tape, and forming the handle end contour line of the first product release film; then, the first transition release film tape and the transition release film waste on the first conductive double-sided adhesive block are removed through the first row of waste tapes. At this time, the main tapes are, from bottom to top, the first bottom film tape, the first release film block arranged at intervals on the first bottom film tape, and the first conductive double-sided adhesive block;

[0012] Step b specifically comprises: laminating a conductive fabric tape on the main material tape obtained in step a, wherein the main material tape comprises, from bottom to top, a first base film tape, first release film blocks arranged at intervals on the first base film tape, a first conductive double-sided adhesive block, and a conductive fabric tape covering the first conductive adhesive block;

[0013] Step c is specifically as follows: at the upper rear of the running direction of the main material tape, compound the second conductive double-sided adhesive tape and the second transition release film tape, peel off the self-contained film under the second conductive double-sided adhesive tape, feed in the opposite direction of the running of the main material tape, and at the same time feed the third transition release film tape from the bottom in the same direction, perform the second asynchronous die-cutting through the second asynchronous die-cutting roller group, and the second asynchronous die-cutting makes the second process release film tape and the second conductive double-sided adhesive tape be cut into segments and arranged at equal intervals on the third transition release film tape, and then the second transition release film tape and the second conductive double-sided adhesive tape are removed through the second waste tape. The waste of transition release film on the surface adhesive block is then flipped over by the first flipping roller so that it is compounded with the main material strip from step b, and the position where the second conductive double-sided adhesive block is compounded forms a staggered gap with the first conductive double-sided adhesive block, and the gap distance is the width of the gap. At this time, the main material strip is, from bottom to top, the following: the first base film strip, the first release film blocks arranged at intervals on the first base film strip, the first conductive double-sided adhesive block, the conductive fabric strip covering the first conductive adhesive block, the second conductive double-sided adhesive block arranged at intervals on the conductive fabric strip, and the third transition release film strip covering the second conductive double-sided adhesive block;

[0014] Step d is specifically as follows: the main material strip after step c is synchronously die-cut by the third die-cutting roller group, and the synchronous die-cutting punches out the outer contour of the conductive cloth layer and the outer contour line of the first conductive double-sided adhesive layer and the second conductive double-sided adhesive layer that match the outer contour of the conductive cloth layer, and die-cuts out the outer contour line of the first product release film and its handle part. The outer contour line of the handle part intersects with the handle part end contour line formed in step a to form the handle part, and the die-cutting depth of the third die-cutting roller group at the handle part does not cut through the first product release film, only cuts off the first conductive double-sided adhesive block, and the die-cutting depth of the remaining parts just cuts through the first product release film; then, the waste outside the frame of the third transition release film strip and the waste outside the frame of the second conductive double-sided adhesive block other than the contour line of the conductive cloth layer are excluded. The waste outside the conductive fabric tape frame is removed, and the waste outside the conductive fabric tape frame is removed. The third transition release film waste located within the outline of the conductive fabric layer is removed through the third row of waste tape. The fourth row of waste tape and the second product release film tape are then compounded from the top. The fourth row of waste tape does not touch the area within the conductive fabric layer, but only touches the first conductive double-sided adhesive tape waste, the first product release film waste, and the first bottom film tape outside the conductive fabric layer. The first bottom film tape, the waste outside the first conductive double-sided adhesive tape frame, the waste outside the first product release film frame, and the fourth row of waste tape are then removed from the bottom. At this point, the tapes are, from top to bottom, the following order: the second product release film tape, the second conductive double-sided adhesive layer, the conductive fabric layer, the first conductive double-sided adhesive layer, and the first product release film. That is, the product is transferred to the second product release film tape.

[0015] Step e is specifically as follows: the shipping protection film strip and the second bottom film strip are compounded in sequence from the bottom, cut by the fourth die-cutting roller group, the second product release film strip and the shipping protection film strip are cut from the position between adjacent products, and then the second bottom film strip is peeled off, and the material is collected to obtain the finished product. The finished product includes the shipping protection film, the first product release film, the first conductive double-sided adhesive layer, the conductive cloth layer, the second conductive double-sided adhesive layer, and the second product release film from bottom to top.

[0016] Furthermore, in step a, the number of the first conductive double-sided adhesive tapes is at least two, which are laminated in parallel with the first product release film tape. Correspondingly, the knife roller of the first asynchronous die-cutting roller group has a first straight blade line and at least two handle end contour blades for cutting the at least two first conductive double-sided adhesive tapes.

[0017] In step c, the number of the second conductive double-sided adhesive tapes is consistent with the number of the first conductive double-sided adhesive tapes, and the knife roller of the second asynchronous die-cutting roller group has a second straight blade for cutting the second conductive double-sided adhesive tapes; the knife roller of the third die-cutting roller group has a closed contour line blade corresponding to the number of the first conductive double-sided adhesive tapes and the shape corresponding to the contour line of the conductive cloth, and is also provided with an outer contour line blade of the handle part corresponding to the outer contour line of the handle part of the first product release film, and the blade height of the closed contour line blade at the part corresponding to the handle part of the first product release film is lower than that at other parts, that is, the blade corresponding to the handle part does not cut the first product release film.

[0018] The quantity of the waste tape in the fourth row in step d is consistent with the quantity of the first conductive double-sided adhesive tape.

[0019] In step e, the knife roller of the fourth die-cutting roller group is provided with a third straight blade for cutting.

[0020] The present invention adopts the above-mentioned process, and by precisely controlling the mold step distance and the material strip travel speed, the conductive double-sided adhesive raw materials on the front and back sides are asynchronously cut into shapes of specified sizes, and at the same time, the contour line on one side is formed and placed at intervals at specified positions on the conductive fabric strip. This optimizes the processing steps, reduces the number of required molds, and avoids the consumption of conductive double-sided adhesive materials in the gap part of the product, thereby reducing processing costs and effectively improving material utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 、 Figure 2 It is a schematic structural diagram of the conductive double-sided adhesive assembly of the present invention;

[0022] Figure 3 It is a flow chart of the process of the present invention;

[0023] Figure 4-1 、 Figure 4-2 、 Figure 4-3 、 Figure 4-4Schematic diagrams of the blade deployment and die-cutting effects of the first asynchronous die-cutting roller group, the second asynchronous die-cutting roller group, the third die-cutting roller group, and the fourth die-cutting roller group used in the process of the present invention;

[0024] Figure 4-5 yes Figure 4-1 to Figure 4-4 Schematic diagram after superimposing the die-cutting effect.

[0025] Figure 5 、 Figure 6 Schematic diagrams of waste areas using the traditional process and the process of the present invention respectively. DETAILED DESCRIPTION

[0026] The present invention relates to a production process for a conductive double-sided adhesive assembly that saves materials. Figure 1 、 Figure 2 As shown, the conductive double-sided adhesive assembly comprises a conductive fabric layer 1, with a first conductive double-sided adhesive layer 2 and a second conductive double-sided adhesive layer 3 attached to the front and back sides of the conductive fabric layer 1, respectively. The first conductive double-sided adhesive layer 2 and the second conductive double-sided adhesive layer 3 are arranged in a staggered manner, that is, the conductive fabric layer 1 also has a gap portion 11 on both sides of which are not covered with conductive double-sided adhesive; that is, in a direction perpendicular to the conductive fabric layer 1, the projections of the first conductive double-sided adhesive layer 2 and the second conductive double-sided adhesive layer 3 have no overlapping area; the outer side and the contour lines of the first conductive double-sided adhesive layer 2 at both ends coincide with the contour lines of one side of the conductive fabric layer 1 and the corners of the two ends of the side; the second conductive double-sided adhesive layer 3 The outer side and the contours of both ends coincide with the contours of the other side of the conductive fabric layer 1 and the corners of that side. The outer surface of the first conductive double-sided adhesive layer 2 is laminated with a first product release film 4, which completely covers the first conductive double-sided adhesive layer 2 and features a protruding handle 41 at one end, extending along the length of the first conductive double-sided adhesive layer 2. The outer surface of the second conductive double-sided adhesive layer 3 is laminated with a second product release film 5, which completely covers the second conductive double-sided adhesive layer 2 and the conductive fabric layer 1. The handle 41 and the wide second product release film 5 facilitate removal during use. The second product release film 5 also protects the conductive fabric layer 1. The other side of the conductive fabric layer 1 can also be protected with a shipping protective film.

[0027] Combine Figure 3 、 Figure 4-1 to Figure 4-4 As shown, the production process of the conductive double-sided adhesive assembly is carried out using a high-speed rotary die-cutting machine, which includes the following steps:

[0028] Step a, compound the two first conductive double-sided adhesive tapes J1 with the first product release film tape L1 and the first transition bottom film tape T1 in sequence, peel off the first conductive double-sided adhesive tape self-contained film J11 from the top and then compound the first transition release film tape G1, perform the first asynchronous die-cutting through the first asynchronous die-cutting roller group M1 and remove the first transition bottom film tape T1, the knife roller of the first asynchronous die-cutting roller group M1 has a first straight blade line R101 and two handle end contour blades R102 for cutting the two first conductive double-sided adhesive tapes J1; the first asynchronous die-cutting causes the first product release film tape L1 and the first conductive double-sided adhesive tape J1 to be cut into segments and arranged at equal intervals on the first bottom film tape T2, the first product release film tape and The contour line of one side of the first conductive double-sided adhesive tape after being cut is used as the inner contour line M101 of the first conductive double-sided adhesive layer and the first release film layer, and the contour line M102 of the handle end of the first product release film 4 is formed; then the first transition release film tape G1 and the transition release film waste on the first conductive double-sided adhesive block are removed through the first row of waste adhesive tapes P1. At this time, the main material tapes are, from bottom to top, the first base film tape T2, the first release film blocks arranged at intervals on the first base film tape T2, and the first conductive double-sided adhesive blocks; the distance between adjacent first release film blocks and first conductive double-sided adhesive blocks is controlled according to the width of the gap 11 and the width of the second conductive double-sided adhesive layer 3, so that the second conductive double-sided adhesive layer 3 can be staggered and the gap 11 can be formed;

[0029] Step b: Laminating a conductive fabric tape D1 on the main material tape obtained in step a. At this time, the main material tape comprises, from bottom to top, a first base film tape T2, first release film blocks arranged at intervals on the first base film tape T2, a first conductive double-sided adhesive block, and a conductive fabric tape D1 covering the first conductive adhesive block;

[0030] Step c, at the upper rear of the main material belt running direction, compound the second conductive double-sided adhesive tape J2 and the second transition release film tape G2, peel off the second conductive double-sided adhesive tape self-contained film J21 below, feed in the opposite direction of the main material belt running, and at the same time feed the third transition release film tape G3 from the bottom in the same direction, and perform the second asynchronous die-cutting through the second asynchronous die-cutting roller group M2. The number of the second conductive double-sided adhesive tape J2 is the same as the number of the first conductive double-sided adhesive tape, that is, there are also two, and the knife roller of the second asynchronous die-cutting roller group M2 has a second straight line blade R201 for cutting the second conductive double-sided adhesive tape J2; the second asynchronous die-cutting causes the second process release film tape G2 and the second conductive double-sided adhesive tape J2 to be cut into segments and arranged at equal intervals to the third On the transition release film strip G3, the second transition release film strip G2 and the transition release film waste on the second conductive double-sided adhesive block are removed through the second row of waste adhesive tape P2, and then the strip is flipped by the first flip roller Z1 to be compounded with the main strip from step b, and the position where the second conductive double-sided adhesive block is compounded forms a staggered gap with the first conductive double-sided adhesive block, and the gap distance is the width of the gap. At this time, the main strip is from bottom to top: the first base film strip T2, the first release film blocks arranged at intervals on the first base film strip T2, the first conductive double-sided adhesive blocks, the conductive fabric strip D1 covering the first conductive adhesive blocks, the second conductive double-sided adhesive blocks arranged at intervals on the conductive fabric strip D1, and the third transition release film strip G3 covering the second conductive double-sided adhesive block;

[0031] Step d, the main material strip after step c is synchronously die-cut by the third die-cutting roller group M3, the knife roller of the third die-cutting roller group M3 has a closed contour line blade R301 corresponding to the number of the first conductive double-sided adhesive tape and the shape corresponding to the contour line of the conductive cloth, and is also provided with a handle portion outer contour line blade R302 corresponding to the outer contour line of the handle portion of the first product release film, and the closed contour line blade R301 is provided with a blade R303 (i.e. Figure 4-3The blade height (at the position of the middle green line) is lower than that of other parts, that is, the blade R303 corresponding to the handle part does not die-cut the first product release film, so as to maintain the handle part during the first asynchronous die-cutting, and the first conductive double-sided adhesive block outside the blade at this part is excluded as waste; the synchronous die-cutting punches out the conductive cloth layer contour line M301 and the outer contour line of the first conductive double-sided adhesive layer and the outer contour line of the second conductive double-sided adhesive layer that are consistent with the outer contour of the conductive cloth layer, and die-cuts the first product release film and the outer contour line M302 of the handle part thereof, and the outer contour line M302 of the handle part intersects with the handle part end contour line M101 formed in step a to form the handle part, and the die-cutting depth of the third die-cutting roller group M3 at the handle part does not cut through the first product release film, but only cuts the first conductive double-sided adhesive block, and the die-cutting depth of the remaining parts just cuts through the first product release film; then the third transition release film material strip frame other than the conductive cloth layer contour line M301 is excluded. The waste outside the second conductive double-sided tape frame, and the waste outside the conductive fabric tape frame are removed, and the third transition release film waste located within the conductive fabric layer outline M301 frame is removed through the third row of waste tape P3, and then the fourth row of waste tape P4 and the second product release film tape L2 are compounded from the top. The number of the fourth row of waste tape P4 is also 2, and the fourth row of waste tape P4 does not contact the area within the conductive fabric layer 1, but only contacts the first conductive double-sided tape outside the conductive fabric layer 1. The adhesive waste, the first product release film waste, and the first support film strip T2 are removed from the bottom. The first support film strip T2, the first conductive double-sided adhesive waste outside the frame, the first product release film waste outside the frame, and the fourth row of waste tape P4 are then removed. The material strips from top to bottom are: the second product release film strip L2, the second conductive double-sided adhesive layer 3, the conductive fabric layer 1, the first conductive double-sided adhesive layer 2, and the first product release film 4. The product is then transferred to the second product release film strip L2.

[0032] In step e, the shipping protection film strip B1 and the second bottom film strip T3 are compounded in sequence from the bottom, and cut by the fourth die-cutting roller group M4. The knife roller of the fourth die-cutting roller group M4 is provided with a third straight blade R401 for cutting. The second product release film strip L2 and the shipping protection film strip B1 are cut from the position between adjacent products, and then the second bottom film strip T3 is peeled off. The material is collected to obtain the finished product. The finished product includes, from bottom to top, the shipping protection film, the first product release film 4, the first conductive double-sided adhesive layer 2, the conductive cloth layer 1, the second conductive double-sided adhesive layer 3, and the second product release film 5.

[0033] like Figure 5 、 Figure 6As shown, taking the production of the above-mentioned conductive double-sided adhesive components of the same specification and the same quantity as an example, the conductive double-sided adhesive tape is divided into four relatively large width wide tapes of the same specification by the process of the present invention, while the traditional process needs to be divided into five narrow tapes of two specifications and smaller widths. Therefore, the process of the present invention is reduced and the difficulty of alignment is reduced, while the traditional process segmentation and alignment processes are more complicated and tedious; the hatched part in the figure is the conductive double-sided adhesive waste generated. The conductive double-sided adhesive material required by the process of the present invention is actually saved by about 30%-50% compared with the conductive double-sided adhesive material required by the traditional die-cutting waste discharge process.

[0034] In summary, the present invention adopts the above-mentioned process, and by precisely controlling the mold pitch and the material strip travel speed, the conductive double-sided adhesive raw materials on the front and back sides are asynchronously cut into shapes of specified sizes, and at the same time, the contour line on one side is formed and placed at intervals at the specified positions of the conductive fabric strip. This optimizes the processing steps, reduces the number of required molds, and avoids the consumption of conductive double-sided adhesive materials in the gap part of the product, thereby reducing processing costs and effectively improving material utilization.

[0035] The above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, but the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and essence of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A production process for a material-saving conductive double-sided adhesive assembly, characterized by: The conductive double-sided adhesive assembly comprises a conductive fabric layer, with a first conductive double-sided adhesive layer and a second conductive double-sided adhesive layer attached to the front and back surfaces of the conductive fabric layer, respectively. The first conductive double-sided adhesive layer and the second conductive double-sided adhesive layer are arranged in a staggered manner, i.e., the conductive fabric layer has a gap portion on both sides that is not covered by the conductive double-sided adhesive. The outer side and the contour lines of the first conductive double-sided adhesive layer coincide with the contour lines of one side of the conductive fabric layer and the contour lines of the corners at both ends of the side. The outer side and the contour lines of the second conductive double-sided adhesive layer coincide with the contour lines of the other side of the conductive fabric layer and the contour lines of the corners at both ends of the side. The outer surface of the first conductive double-sided adhesive layer is laminated with a first product release film, which completely covers the first conductive double-sided adhesive layer and has a protruding handle portion only at one end. The outer surface of the second conductive double-sided adhesive layer is laminated with a second product release film, which completely covers the second conductive double-sided adhesive layer and the conductive fabric layer. The production process of the conductive double-sided tape assembly is carried out using a high-speed rotary die-cutting machine and includes the following steps: Step a: performing a first asynchronous die-cutting on the first product release film strip and the first conductive double-sided adhesive strip using a first asynchronous die-cutting roller group, cutting the contour lines of the first product release film and the first conductive double-sided adhesive tape on the side facing the interior of the product, and forming the first product release film semi-finished product and the first conductive double-sided adhesive semi-finished product on the strip at equal intervals, and simultaneously cutting the contour line of the handle end of the first product release film parallel to the direction of travel of the strip, and discharging the waste; Step b, compounding the first product release film semi-finished product and the first conductive double-sided adhesive semi-finished product with the conductive fabric tape to form a first conductive double-sided adhesive assembly semi-finished product; Step c: performing a second asynchronous die-cutting on the second conductive double-sided adhesive tape using a second asynchronous die-cutting roller group to form a second conductive double-sided adhesive semi-finished product on the tape at equal intervals, while simultaneously cutting out a contour line of the second conductive double-sided adhesive on the side facing the interior of the product and discharging the product as waste; then laminating the second conductive double-sided adhesive semi-finished product with the first conductive double-sided adhesive assembly semi-finished product, so that the second conductive double-sided adhesive semi-finished product and the first conductive double-sided adhesive assembly semi-finished product are distributed in an alternating and staggered manner on the front and back sides of the conductive fabric tape, thereby forming a second conductive double-sided adhesive assembly semi-finished product; Step d, synchronously die-cutting the second conductive adhesive component semi-finished product by a third die-cutting roller group, punching out the outer contour line of the product, and discharging waste; Step e: transfer and cut to obtain the finished product.

2. The production process of the material-saving conductive double-sided adhesive assembly according to claim 1, characterized in that: Step a is specifically as follows: compound the first conductive double-sided adhesive tape with the first product release film tape and the first transition support film tape in sequence, peel off the first conductive double-sided adhesive tape's own film from the top and then compound it with the first transition release film tape, perform the first asynchronous die-cutting through the first asynchronous die-cutting roller group and remove the first transition support film tape, the first asynchronous die-cutting causes the first product release film tape and the first conductive double-sided adhesive tape to be cut into segments and arranged at equal intervals on the first support film tape, and form the handle end contour line of the first product release film; then remove the first transition release film tape and the transition release film waste on the first conductive double-sided adhesive block through the first row of waste tape. At this time, the main tapes are, from bottom to top, the first support film tape, the first release film block arranged at intervals on the first support film tape, and the first conductive double-sided adhesive block.

3. The production process of the material-saving conductive double-sided adhesive assembly according to claim 2, characterized in that: Step b is specifically as follows: a conductive fabric tape is compounded on the main material tape obtained in step a. At this time, the main material tape is composed of, from bottom to top, a first base film tape, a first release film block arranged at intervals on the first base film tape, a first conductive double-sided tape block, and a conductive fabric tape covering the first conductive tape block.

4. The production process of the material-saving conductive double-sided adhesive assembly according to claim 3, characterized in that: Step c is as follows: at the upper rear of the main material belt running direction, the second conductive double-sided adhesive tape is compounded with the second transition release film tape, the self-contained film under the second conductive double-sided adhesive tape is peeled off, and the material is fed in the opposite direction of the main material belt running, and at the same time, the third transition release film tape is fed from the bottom in the same direction, and the second asynchronous die-cutting roller group is used for the second asynchronous die-cutting. The second asynchronous die-cutting cuts the second process release film tape and the second conductive double-sided adhesive tape into segments and arranges them at equal intervals on the third transition release film tape, and then removes the second transition release film tape and the second conductive double-sided adhesive tape through the second waste tape. The waste of transition release film on the surface adhesive block is then flipped over by the first flip roller to be compounded with the main material strip from step b, and the position where the second conductive double-sided adhesive block is compounded forms a staggered interval with the first conductive double-sided adhesive block. The interval distance is the width of the gap. At this time, the main material strip is from bottom to top: the first base film strip, the first release film block arranged at intervals on the first base film strip, the first conductive double-sided adhesive block, the conductive cloth strip covering the first conductive adhesive block, the second conductive double-sided adhesive block arranged at intervals on the conductive cloth strip, and the third transition release film strip covering the second conductive double-sided adhesive block.

5. The production process of the material-saving conductive double-sided adhesive assembly according to claim 4, characterized in that: Step d is specifically as follows: the main material strip after step c is synchronously die-cut by the third die-cutting roller group. The synchronous die-cutting punches out the outer contour of the conductive cloth layer and the outer contour line of the first conductive double-sided adhesive layer and the outer contour line of the second conductive double-sided adhesive layer that match the outer contour of the conductive cloth layer, and die-cuts out the outer contour line of the first product release film and its handle. The outer contour line of the handle intersects with the handle end contour line formed in step a to form the handle. The die-cutting depth of the third die-cutting roller group at the handle does not cut through the first product release film, only cutting off the first conductive double-sided adhesive block, and the die-cutting depth of the remaining parts just cuts through the first product release film; then, the waste outside the frame of the third transition release film strip and the second conductive double-sided adhesive block other than the conductive cloth layer contour line are removed. The waste outside the frame and the waste outside the frame of the conductive fabric tape are removed, and the third transition release film waste located within the outline frame of the conductive fabric layer is removed through the third row of waste tape, and then the fourth row of waste tape and the second product release film tape are compounded from the top. The fourth row of waste tape does not touch the area within the conductive fabric layer, but only touches the first conductive double-sided adhesive tape waste and the first product release film waste and the first bottom film tape outside the conductive fabric layer. Then the first bottom film tape, the first conductive double-sided adhesive tape waste outside the frame, the first product release film waste outside the frame and the fourth row of waste tape are removed from the bottom; at this time, the tapes are from top to bottom in the following order: the second product release film tape, the second conductive double-sided adhesive layer, the conductive fabric layer, the first conductive double-sided adhesive layer, and the first product release film; that is, the product is transferred to the second product release film tape.

6. The production process of the material-saving conductive double-sided adhesive assembly according to claim 5, characterized in that: Step e is specifically as follows: compound the shipping protective film strip and the second bottom film strip in sequence from the bottom, cut them by the fourth die-cutting roller group, cut the second product release film strip and the shipping protective film strip from the position between adjacent products, and then peel off the second bottom film strip, collect the materials to obtain the finished product, which includes the shipping protective film, the first product release film, the first conductive double-sided adhesive layer, the conductive cloth layer, the second conductive double-sided adhesive layer, and the second product release film from bottom to top.

7. The production process of the material-saving conductive double-sided adhesive assembly according to claim 6, characterized in that: In step a, the number of the first conductive double-sided adhesive tapes is more than two, which are compounded in parallel with the first product release film tape. Correspondingly, the knife roller of the first asynchronous die-cutting roller group has a first straight blade line for cutting the more than two first conductive double-sided adhesive tapes and more than two handle end contour line blades.

8. The production process for a material-saving conductive double-sided adhesive assembly according to claim 6, characterized in that: In step c, the number of second conductive double-sided adhesive tapes is consistent with the number of first conductive double-sided adhesive tapes, and the knife roller of the second asynchronous die-cutting roller group has a second straight blade for cutting the second conductive double-sided adhesive tapes; in step d, the knife roller of the third die-cutting roller group has a closed contour line blade corresponding to the number of first conductive double-sided adhesive tapes and the shape corresponding to the contour line of the conductive cloth, and is also provided with an outer contour line blade of the handle part corresponding to the outer contour line of the handle part of the first product release film, and the blade height of the closed contour line blade at the part corresponding to the handle part of the first product release film is lower than that at other parts, that is, the blade corresponding to the handle part does not cut the first product release film.

9. The process for producing a material-saving conductive double-sided adhesive tape assembly according to claim 6, wherein the amount of waste adhesive tape in the fourth row in step d is consistent with the amount of the first conductive double-sided adhesive tape.

10. The production process for a material-saving conductive double-sided adhesive assembly according to claim 6, wherein the knife roller of the fourth die-cutting roller group in step e is provided with a third straight blade for cutting.

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