Die cutting method and die cutting system for double-faced adhesive tape workpiece and double-faced adhesive tape workpiece

Abstract

The invention relates to but is not limited to the technical field of die cutting. The embodiment of the invention provides a die cutting method and a die cutting system for a double-faced adhesive tape workpiece and the double-faced adhesive tape workpiece. The method comprises the following steps: sequentially stacking a first surface paper material belt, a double-sided adhesive tape material belt, a release film material belt and a backing film material belt to form a first combined material belt; when the first combined material belt moves to a first die cutting position, die cutting is conducted on the first combined material belt, the first combined material belt is cut off to a backing film material belt, the first surface paper material belt is recycled, the second surface paper material belt is attached again, and a second combined material belt is obtained; when the second combined material belt moves to a second die cutting position, die cutting is conducted on the second combined material belt, a release film material belt of the second combined material belt is cut off, a second face paper material belt is recycled, a third face paper material belt is attached, and a third combined material belt is obtained; and when the third combined material belt moves to a third die cutting position, die cutting is conducted on the third combined material belt, and the third combined material belt is cut off to the backing film material belt. According to the embodiment of the invention, the die cutting efficiency and the die cutting yield of the double-faced adhesive tape workpiece can be improved.

Description

Technical Field

[0001] This application relates to the field of die-cutting technology, and in particular to a die-cutting method, die-cutting system, and double-sided adhesive workpiece. Background Technology

[0002] Double-sided adhesive components are commonly used in smart terminal devices for bonding and sealing. Existing double-sided adhesive components typically consist of a release film and double-sided adhesive. During use, the operating area on the release film is clamped, the double-sided adhesive is applied to the object, pressure is applied, the release film is removed, and other components are then bonded to the double-sided adhesive on the release film side. For this type of double-sided adhesive component, the current die-cutting process usually involves a first cut to cut out the operating area of ​​the release film, and a second cut to cut the outer contour of the double-sided adhesive. This allows for die-cutting of a single component in two cuts. However, after the second cut, adhesive waste is formed on the outer contour side of the double-sided adhesive component in the feed direction. This waste can easily be carried away during waste removal from the outer frame, affecting the production yield and efficiency of double-sided adhesive components. Therefore, there is an urgent need for a method to improve the die-cutting efficiency and yield of double-sided adhesive components. Summary of the Invention

[0003] The main objective of this application is to provide a die-cutting method, a die-cutting system, and a double-sided adhesive workpiece, which aims to improve the die-cutting efficiency and yield of the double-sided adhesive workpiece.

[0004] In a first aspect, a die-cutting method for double-sided adhesive workpieces according to an embodiment of this application is provided, the method comprising: The double-sided adhesive workpiece includes a release film and double-sided adhesive. The release film is divided into an operating area and an adhesion protection area. The operating area is located at one end of the adhesion protection area. The adhesion protection area matches the outer contour of the double-sided adhesive. The double-sided adhesive is adhered to the adhesion protection area. The method includes: The first paper strip, double-sided adhesive strip, release film strip, and backing film strip are stacked from top to bottom to form the first combined strip; When the first combined strip moves to the first die-cutting position, the first combined strip is die-cut and cut to the bottom film strip, so that the outer contour of the adhesion protection area is die-cut out. The first paper strip of the first combined strip after die-cutting is recycled so that the waste between the adhesion protection areas of two adjacent double-sided adhesive workpieces is recycled. A second paper strip is attached to the double-sided adhesive strip after the first paper strip has been recycled, resulting in a second combined strip; When the second composite strip moves to the second die-cutting position, the second composite strip is die-cut and cut to the release film strip of the second composite strip, so that the double-sided adhesive strip is die-cut to form the double-sided adhesive; The second paper strip of the second combined strip after die-cutting is recycled so that the waste on the double-sided adhesive strip is recovered. After recycling the second paper strip, a third paper strip is attached to the double-sided adhesive strip to obtain a third combined strip. When the third composite strip moves to the third die-cutting position, the third composite strip is die-cut and cut to the bottom film strip so that the outer contour of the operating area is die-cut out.

[0005] Secondly, embodiments of this application provide a die-cutting system for a double-sided adhesive workpiece, the double-sided adhesive workpiece including a release film and double-sided adhesive, the release film being divided into an operating area and an adhesion protection area, the operating area being located at one end of the adhesion protection area, the adhesion protection area matching the outer contour of the double-sided adhesive, the double-sided adhesive being adhered to the adhesion protection area, and the die-cutting system comprising: The feeding assembly includes a raw material feeding component, a second paper feeding component, and a third paper feeding component; A first die-cutting assembly is provided with a first die for cutting the outer contour of the adhesive protection area; the first die-cutting assembly is located at a preset first die-cutting position. The second die-cutting assembly is provided with a second die for cutting the contour of the double-sided tape that overlaps with the operating area; the second die-cutting assembly is located at a preset second die-cutting position; The third die-cutting component is provided with a third die for die-cutting the outer contour of the operation area; the third die-cutting component is set at a preset third die-cutting position; A material collection assembly, which is used to collect the waste material after die-cutting by the first die-cutting assembly, the second die-cutting assembly, and the third die-cutting assembly; The first die-cutting assembly, the first die-cutting assembly, and the first die-cutting assembly are arranged sequentially along a preset material feeding direction. The raw material feeding component is used to convey the first face paper material strip, the double-sided adhesive material strip, the release film material strip, and the bottom support film material strip to form a first combined material strip before entering the first die-cutting assembly. The second face paper feeding component is used to output the second face paper material strip to the first combined material strip after the waste material is recycled from the first die-cutting assembly, so as to form a second combined material strip before entering the second die-cutting assembly. The third face paper feeding component is used to output the third face paper material strip to the second combined material strip after the waste material is recycled from the second die-cutting assembly, so as to form a third combined material strip before entering the third die-cutting assembly.

[0006] Thirdly, embodiments of this application provide a double-sided adhesive workpiece, which is manufactured by a die-cutting system for double-sided adhesive workpieces as described in any of the second aspects.

[0007] This application proposes a die-cutting method, a die-cutting system, and a double-sided adhesive workpiece. By first die-cutting the adhesion protection area of ​​the double-sided adhesive workpiece, even if adhesive waste is generated during the die-cutting process, when the first paper strip is recycled, only the outer contour of the adhesion protection area is die-cut into semi-finished double-sided adhesive and semi-finished release film, which are still connected to the main body of the double-sided adhesive strip and release film strip, respectively. Therefore, the semi-finished product will not be recycled. Furthermore, no adhesive waste is generated when the outer contour of the double-sided adhesive and the operating area are subsequently die-cut. Therefore, when the second and third paper strips are recycled, the die-cut double-sided adhesive workpiece will not be recycled along with the waste. Thus, compared with related technologies, the embodiments of this application can improve the die-cutting efficiency and die-cutting yield of double-sided adhesive workpieces. Attached Figure Description

[0008] Figure 1 This is an exploded view of the structure of the die-cut double-sided adhesive workpiece according to the die-cutting method provided in this application; Figure 2 This is a schematic diagram of the die-cutting cutter lines for double-sided adhesive tape workpieces in the prior art; Figure 3 This is a schematic flowchart of an embodiment of the die-cutting method for double-sided adhesive workpieces provided in this application; Figure 4a This is a schematic diagram of the die-cutting position and the structure of the first die in one embodiment of the die-cutting method for double-sided adhesive workpieces provided in this application; Figure 4b This is a schematic diagram of the die-cutting position and the structure of the second die in one embodiment of the die-cutting method for double-sided adhesive workpieces provided in this application; Figure 4c This is a schematic diagram of the die-cutting position and the structure of the third die in one embodiment of the die-cutting method for double-sided adhesive workpieces provided in this application; Figure 5 This is a schematic diagram of the die lines of a double-sided adhesive workpiece that has undergone three die-cutting in one embodiment of the die-cutting method for double-sided adhesive workpieces provided in this application; Figure 6 This is a schematic diagram of one embodiment of the die-cutting system for double-sided adhesive workpieces provided in this application.

[0009] Figure label: Double-sided adhesive workpiece 100, release film 110, operating area 111, adhesion protection area 112, workpiece through hole 113, double-sided adhesive 120. First composite tape 210, second composite tape 220, third composite tape 230, first face paper tape 240, double-sided adhesive tape 250, release film tape 260, backing film tape 270, second face paper tape 280, third face paper tape 290 First die 310, first cutting line 311, second die 320, second cutting line 321, positioning pin 322, third die 330, third cutting line 340. Feeding assembly 400, raw material feeding component 410, second paper feeding component 420, third paper feeding component 430 First die-cutting assembly 510, first hardware mold 511, second die-cutting assembly 520, third die-cutting assembly 530, second hardware mold 513, positioning pin 514, nesting pillar 515, nesting hole 516, punching and blanking hole 517. The receiving assembly 600, the first receiving component 610, the second receiving component 620, and the third receiving component 630. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0011] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0012] The following is a description of the terms used in this application: Adhesive re-adhesion (also called residual adhesive re-adhesion or adhesive residue) is the phenomenon in which adhesive transfers from the surface of the object being bonded and re-adheres to other parts during processing or use, such as die-cutting, lamination, and label peeling.

[0013] In smart terminal devices, double-sided adhesive components 100 are typically used for component assembly to achieve bonding and sealing. Existing double-sided adhesive components 100 generally include a release film 110 and double-sided adhesive 120. The double-sided adhesive 120 adheres to the release film 110, with one end of the release film 110 protruding from the double-sided adhesive 120 to form an operating area 111. The contours of the remaining sides of the release film 110 match the outer contour of the double-sided adhesive 120, such as... Figure 1 As shown, Figure 1The shaded area of ​​the release film 110 matches the outer contour of the double-sided adhesive 120, and the area outside the shaded area of ​​the release film 110 is the operating area 111. In use, the double-sided adhesive 120 is applied to the object by clamping the operating area 111 on the release film 110, pressure is applied, the release film 110 is peeled off, and other components are then bonded to the double-sided adhesive 120 on the side of the release film 110. However, for this type of double-sided adhesive workpiece 100, existing die-cutting processes typically involve two die-cutting operations to complete the die-cutting of a single double-sided adhesive workpiece 100. For example, such as... Figure 2 As shown, the first die-cutting is performed along the outer contour of the operating area 111 of the release film 110. At this time, as... Figure 2 As shown, the shaded areas on both sides of the strip are the waste areas after die-cutting. The second cut is for die-cutting the outer contour of the double-sided tape 120. At this time, the diagonal shaded area between the two rows of double-sided tape workpieces 100 is the waste area. However, in this die-cutting process, when the second die 320 cuts, as... Figure 2 The dashed box indicates that the double-sided adhesive 120 may have adhesive residue at the die-cutting location, leading to adhesive re-adhesion. During waste removal from the outer frame, since the molded double-sided adhesive workpiece 100 is an independent piece adhering only to the base film via the release film 110, it is easily carried away by adhesive waste during waste removal, thus affecting the production yield and efficiency of the double-sided adhesive workpiece 100. Therefore, a method to improve the die-cutting efficiency and yield of the double-sided adhesive workpiece 100 is urgently needed. This paper proposes a die-cutting method, a die-cutting system, and a double-sided adhesive workpiece 100, aiming to improve the die-cutting efficiency and yield of the double-sided adhesive workpiece 100.

[0014] Understandably, referring to Figure 3 As shown, according to the die-cutting method for a double-sided adhesive workpiece 100 provided in this application embodiment, the double-sided adhesive workpiece 100 includes a release film 110 and double-sided adhesive 120. The release film 110 is divided into an operating area 111 and an adhesion protection area 112. The operating area 111 is located at one end of the adhesion protection area 112. The adhesion protection area 112 matches the outer contour of the double-sided adhesive 120. The double-sided adhesive 120 is adhered to the adhesion protection area 112. The method includes: Step S100: Stack the first paper strip 240, double-sided adhesive strip 250, release film strip 260 and bottom film strip 270 from top to bottom to form the first combined strip 210. Step S200: When the first combined material strip 210 moves to the first die-cutting position, the first combined material strip 210 is die-cut and cut to the bottom film material strip 270, so that the outer contour of the adhesion protection area 112 is die-cut out. Step S300: Recycle the first paper strip 240 of the die-cut first composite strip 210 so that the waste between the adhesion protection areas 112 of two adjacent double-sided adhesive workpieces 100 is recycled. Step S400: Attach the second paper strip 280 to the double-sided adhesive strip 250 after recycling the first paper strip 240 to obtain the second combined strip 220. Step S500: When the second combined strip 220 moves to the second die-cutting position, the second combined strip 220 is die-cut and cut to the release film strip 260 of the second combined strip 220 so that the double-sided adhesive strip 250 is die-cut to form double-sided adhesive 120. Step S600: Recycle the second paper strip 280 of the die-cut second composite strip 220 so that the waste on the double-sided adhesive strip 250 is recycled; Step S700: After recycling the second paper material strip 280, attach the third paper material strip 290 to the double-sided adhesive strip 250 to obtain the third combined material strip 230. Step S800: When the third combined material strip 230 moves to the third die-cutting position, the third combined material strip 230 is die-cut and cut to the bottom film material strip 270 so that the outer contour of the operation area 111 is die-cut out.

[0015] By first die-cutting the adhesion protection area 112 of the double-sided adhesive workpiece 100, even if adhesive waste is generated when the double-sided adhesive 120 is die-cut, when the first paper strip 240 is recycled, since only the outer contour of the adhesion protection area 112 is die-cut out of the semi-finished double-sided adhesive 120 and the semi-finished release film 110 are still connected to the main body of the double-sided adhesive strip 250 and the release film strip 260 respectively, the semi-finished product will not be recycled. Furthermore, when the outer contour of the double-sided adhesive 120 and the operating area 111 is subsequently die-cut out, no adhesive waste is generated. Therefore, when the second paper strip 280 and the third paper strip 290 are recycled respectively, the die-cut double-sided adhesive workpiece 100 will not be recycled along with the waste. Therefore, the embodiments of this application can improve the die-cutting efficiency and die-cutting yield of the double-sided adhesive workpiece 100.

[0016] This application does not limit the structure used to form the first combined strip 210. In some embodiments, after the base film strip 270 is conveyed along a preset feeding direction, the release film strip 260, double-sided adhesive strip 250, and first face paper strip 240 are sequentially pressed together by multiple pressure rollers to form the first combined strip 210. Alternatively, the strips can be limited by a limiting component and then pressed together by pressure rollers in one step. This application does not limit the specific method used, and those skilled in the art can selectively configure the method according to actual needs.

[0017] This application does not limit the method used for die-cutting the first combined strip 210, the second combined strip 220, and the third combined strip 230. Those skilled in the art can selectively set the method according to the processing precision. For example, in some embodiments, a circular die-cutting tool is used, while in other embodiments, an engraving die is used for die-cutting.

[0018] The first paper strip 240 is not adhesive, the adhesive strip is adhesive on both sides, and the bottom film strip 270 is slightly adhesive on the side near the release film strip 260, so that the release film 110 can be adhered.

[0019] The outer contour of the adhesion protection area 112 is consistent with the outer contour of the double-sided adhesive 120. The outer contour of the adhesion protection area 112 refers to the contour of the part that overlaps with the molded double-sided adhesive workpiece 100.

[0020] This application embodiment does not limit the number of double-sided adhesive workpieces 100 that can be die-cut from the double-sided adhesive tape 250 and release film tape 260 in the width direction. The width direction is horizontal and perpendicular to the feeding direction.

[0021] In step S200, when cutting to the bottom film strip 270, both the double-sided adhesive strip 250 and the release film strip 260 will be die-cut to form the outer contour of the adhesion protection area 112. At this time, even if there is adhesive residue on the double-sided adhesive strip 250 during die-cutting, the semi-finished product die-cut from the double-sided adhesive strip 250 will not be carried away because it remains connected to the main body of the double-sided adhesive strip 250. Similarly, the semi-finished product die-cut from the release film strip 260 will also remain connected to the main body of the release film strip 260 and therefore will not be carried away. Meanwhile, during die-cutting in steps S500 and S800, no glue waste is generated. Thus, through the above steps S100 to S800, there is no waste discharge during the die-cutting process of the double-sided adhesive workpiece 100, which would lead to the double-sided adhesive workpiece 100 being recycled along with the material. The double-sided adhesive workpiece 100 formed on the bottom film strip 270 will not be reduced or shifted too much from its original position, resulting in a higher yield and efficiency of the double-sided adhesive workpiece 100.

[0022] In some embodiments, after step S800, the third paper strip 290 is recycled, and then a sticker is applied to the formed double-sided adhesive workpiece 100 to finally form the finished strip.

[0023] For example, refer to Figures 4a-4c The die-cutting method described in the embodiments of this application is as follows: Figure 4a As shown in Figure (1), the first die 310 performs die cutting towards the first combined material strip 210 and partially cuts to the bottom film strip 270. The first cutting line 311 of the first die 310 (that is, the shape of the cutting edge of the first die 310) is as shown in the left figure of Figure (2) in 4a. Then, we can obtain Figure 5The waste area, defined by the oblique shaded region between the two rows of double-sided adhesive workpieces 100, is formed by the two adjacent first cutting lines 311. At this time, both the double-sided adhesive tape 250 and the release film tape 260 are die-cut to form the outer contour of the adhesion protection area 112. Next... Figure 4b As shown in Figure (1), the second die 320 performs die cutting towards the second combined material strip 220, cutting halfway to the release film strip 260. When the second cutting line 321 of the second die 320 (i.e., the shape of the cutting edge of the second die 320) is as shown in Figure (1), the second die 320 cuts halfway to the release film strip 260. Figure 4b As shown in Figure (2), we can obtain Figure 5 In the waste area formed by the second cutting line 321 and both sides of the strip, the double-sided adhesive strip 250 is die-cut into double-sided adhesive 120, and then... Figure 4c As shown in Figure (1), the third die 330 is die-cutting towards the third combined material strip 230, half-cutting to the bottom film strip 270. When the third cut line 340 of the third die 330 (that is, the shape of the blade peak of the third die 330) is as shown in Figure (1), the third die 330 is die-cutting towards the third combined material strip 230, half-cutting to the bottom film strip 270. Figure 4c As shown in the left figure of Figure 4 (2), the waste area shown by the straight dashed line formed by the third cutting line 340 and the two sides of the strip is obtained. At this time, the release film strip 260 is die-cut to form the outer contour of the operating area 111 and the workpiece through hole 113. At this time, the waste area shown by the dashed line is obtained as shown in Figure 4 (2). Figure 1 The double-sided adhesive workpiece 100 is shown.

[0024] It is understandable that, as shown in FIG4, in the material feeding direction of the base film, the waste area between two adjacent adhesive protection areas 112 after the first combined material strip 210 is die-cut partially overlaps with the waste area between two adjacent adhesive protection areas 112 after the second combined material strip 220 is die-cut.

[0025] By partially overlapping the waste areas between the adhesive protection areas 112, the integrity of the outer contour after die-cutting can be further ensured.

[0026] For example, such as Figure 5 As shown, the diagonal solid line and the dashed straight line represent the area where the waste area between two adjacent adhesive protection areas 112 after the first combined strip 210 is die-cut partially overlaps with the waste area between two adjacent adhesive protection areas 112 after the second combined strip 220 is die-cut.

[0027] Understandably, after the first composite strip 210 is die-cut, it obtains the outer contour of at least two rows of adhesive protection areas 112 arranged horizontally along the feeding direction of the backing film, and after the second composite strip 220 is die-cut, it obtains at least two rows of double-sided adhesive 120 arranged horizontally along the feeding direction.

[0028] By setting up multiple rows of double-sided adhesive workpieces (100) for die-cutting at once, die-cutting efficiency can be further improved. For example, such as... Figure 5As shown, each strip of material is die-cut into two rows of double-sided adhesive workpieces 100.

[0029] Understandably, referring to Figure 6 As shown, a die-cutting system for a double-sided adhesive workpiece 100 according to an embodiment of this application is provided. The double-sided adhesive workpiece 100 includes a release film 110 and double-sided adhesive 120. The release film 110 is divided into an operating area 111 and an adhesion protection area 112. The operating area 111 is located at one end of the adhesion protection area 112. The adhesion protection area 112 matches the outer contour of the double-sided adhesive 120. The double-sided adhesive 120 is adhered to the adhesion protection area 112. The die-cutting system includes: The feeding assembly 400 includes a raw material feeding component 410, a second paper feeding component 420, and a third paper feeding component 430. The first die-cutting assembly 510 has a first die 310 with the outer contour of the die-cutting adhesion protection area 112 on it; the first die-cutting assembly 510 is set at a preset first die-cutting position. The second die-cutting assembly 520 is provided with a second die 320 whose outline overlaps with the operating area 111; the second die-cutting assembly 520 is set at a preset second die-cutting position; The third die-cutting assembly 530 has a third die 330 with the outer contour of the die-cutting operation area 111 on it; the third die-cutting assembly 530 is set at a preset third die-cutting position. The material receiving component 600 is used to collect the waste material after die-cutting by the first die-cutting component 510, the second die-cutting component 520 and the third die-cutting component 530. The first die-cutting assembly 510, the first die-cutting assembly 510 and the first die-cutting assembly 510 are arranged sequentially along a preset material feeding direction. The raw material feeding component 410 is used to convey the first face paper material belt 240, the double-sided adhesive material belt 250, the release film material belt 260 and the bottom support film material belt 270 to form a first combined material belt 210 before entering the first die-cutting assembly 510. The second face paper feeding component 420 is used to output the second face paper material belt 280 to the first combined material belt 210 after the waste material is recycled and output from the first die-cutting assembly 510 to form a second combined material belt 220 before entering the second die-cutting assembly 520. The third face paper feeding component 430 is used to output the third face paper material belt 290 to the second combined material belt 220 after the waste material is recycled and output from the second die-cutting assembly 520 to form a third combined material belt 230 before entering the third die-cutting assembly 530.

[0030] Therefore, by first die-cutting the adhesion protection area 112 of the double-sided adhesive workpiece 100 with the first die 310, even if adhesive waste is generated when the double-sided adhesive 120 is die-cut, when the first paper strip 240 is recycled by the receiving component 600, since only the outer contour of the adhesion protection area 112 is die-cut out of the semi-finished double-sided adhesive 120 and the semi-finished release film 110 are still connected to the main body of the double-sided adhesive strip 250 and the release film strip 260 respectively, the semi-finished product will not be recycled. Furthermore, when the double-sided adhesive 120 and the outer contour of the operating area 111 are die-cut out by the second die 320 and the third die 330 respectively, no adhesive waste will be generated. Therefore, when the second paper strip 280 and the third paper strip 290 are recycled respectively, the die-cut double-sided adhesive workpiece 100 will not be recycled along with the waste. Therefore, the embodiments of this application can improve the die-cutting efficiency and die-cutting yield of the double-sided adhesive workpiece 100.

[0031] The raw material feeding unit 410 includes at least a first face paper feeding unit, a backing film feeding unit, and a product feeding unit. The first face paper feeding unit is used to feed the first face paper strip 240 along a predetermined feeding direction. The backing film feeding unit is used to feed the backing film strip 270 along the feeding direction. The product feeding unit is used to feed the product strip with double-sided adhesive 120 adhered to the release film 110 along the feeding direction. In other embodiments, the raw material feeding unit 410 includes a first face paper feeding unit, a backing film feeding unit, a double-sided adhesive feeding unit, and a backing film feeding unit. The double-sided adhesive feeding unit is used to feed the double-sided adhesive strip 250 along the feeding direction, and the backing film feeding unit is used to feed the release film strip 260 along the feeding direction. The double-sided adhesive strip 250 output by the double-sided adhesive feeding unit may or may not have a built-in release film 110. This application does not limit this, and those skilled in the art can selectively configure it according to actual needs. Each feeding component in the feeding assembly 400 can be set with rollers. By setting a drive recovery at one end of the third die-cutting assembly 530, the material strip can be continuously die-cut.

[0032] This application does not limit what other components are provided in the feeding assembly 400 and the first die-cutting assembly 510. In some embodiments, positioning rollers and pressing rollers may also be provided.

[0033] This application embodiment does not limit the specific structure of the receiving component 600, and those skilled in the art can selectively configure it according to actual conditions. The waste after die-cutting includes the non-double-sided adhesive tape 250 and release film tape 260 portions of the die-cut product, which are removed by the face paper. The receiving component 600 includes a first receiving element 610, a second receiving element 620, and a third receiving element 630 to respectively recover the first face paper tape 240 after the first die-cutting, the waste from the double-sided adhesive tape 250 and release film tape 260, the waste from the second die-cutting of the double-sided adhesive tape 250, and the waste from the third die-cutting of the double-sided adhesive tape 250 and release film tape 260.

[0034] Understandably, both the first die 310 and the third die 330 are etching dies.

[0035] For example, the blade shape of the first die 310 is as follows: Figure 4a The left figure in (2) shows the shape of the blade of the third die 330 as follows. Figure 4c The third cut line 340 is shown in the left figure of (2).

[0036] Understandably, the first die-cutting assembly 510 also includes a first metal mold 511, which is detachably connected to the first cutting die 310; the third die-cutting assembly 530 also includes a second metal mold 513, which is detachably connected to the third cutting die 330.

[0037] The embodiments of this application do not limit the structure on the first hardware mold 511. By detachably connecting the first hardware mold 511 and the first cutting die 310, and detachably connecting the second hardware mold 513 and the third cutting die 330, the lifespan of the first die-cutting assembly 510 and the second die-cutting assembly 520 can be extended, and the die-cutting cost can be reduced.

[0038] For example, the first hardware mold 511 is as follows Figure 4a As shown in the right figure of (2), the second hardware mold 513 is as follows Figure 4c The right figure of (2) is shown.

[0039] This application does not restrict how the first die 310 and the first hardware die 511 are detachably connected, such as through nuts, clips, etc. Similarly, the second hardware die 513 and the third die 330 can be configured with reference to the connection method between the first die 310 and the first hardware die 511.

[0040] Understandably, the second die-cutting component 520 is an engraving mold, and the second cutting mold 320 is the cutting edge in the engraving mold.

[0041] Since the second die-cutting component 520 involves only the die-cutting of one side profile of the double-sided tape 120, the production of the die-cutting component can be simplified by setting the second die-cutting component 520 as an engraving mold.

[0042] Understandably, the first hardware mold 511 and the second hardware mold 513 are both provided with detachable positioning pins 514 and nesting posts 515, the first cutting mold 310 and the second cutting mold 320 are provided with nesting holes 516 that match the nesting posts 515, and the base of the engraving mold is provided with positioning posts 322.

[0043] For example, such as Figure 4a As shown in the right figure of (2), Figure 4a (2) is an exploded view of the first hardware mold 511 and the first cutting mold 310 of the first die-cutting assembly 510; positioning pins 514 are provided on two opposite sides of the first hardware mold 511, and nesting posts 515 are provided between the positioning pins 514. The first hardware mold 511 is detachably connected to the nesting holes 516 on the first cutting mold 310 through the nesting posts 515. The positioning pins 514 are used to limit the bottom film strip 270. Similarly, as Figure 4c As shown in the right figure of (2), Figure 4c (2) is an exploded view of the second metal mold 513 and the third cutting die 330 of the third die-cutting component 530; the second metal mold 513 is provided with positioning pins 514 on two opposite sides, and a nesting post 515 is provided between the positioning pins 514. The second metal mold 513 is detachably connected to the second cutting die 320 through its own nesting post 515. The second metal mold 513 is also provided with a punching and blanking hole 517, which is used to punch the strip to form a workpiece through hole 113. Figure 4c As shown in the right figure of (2), each pair of punching and blanking holes 517 corresponds to a double-sided adhesive workpiece 100. When the third die-cutting part is being die-cut, the product is punched through the punching and blanking holes 517 on the left side of the first hardware mold 511, while the outer contour of the operation area 111 is being die-cut through the third die 330 on the right side of the first hardware mold 511.

[0044] The service life can be extended by setting a detachable positioning pin 514, and the service life can be extended by setting a nested column 515, so that the hardware mold and the corresponding cutting mold can be matched and fixed.

[0045] Both the positioning pin 514 and the positioning post 322 are used to position the material strip.

[0046] Understandably, the first die 310, the second die 320, and the third die 330 are all single-edged blades.

[0047] A single-edged knife is a knife that is straight on the inside and angled on the outside.

[0048] It is understood that the double-sided adhesive workpiece 100 provided according to the embodiments of this application is manufactured by the die-cutting system of the double-sided adhesive workpiece 100 described above.

[0049] For example, refer to Figure 2 The method shown combines Figure 5 The system shown can obtain Figure 1 The double-sided adhesive workpiece 100 is shown.

[0050] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0051] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0052] The terms “comprising” and “having”, and any variations thereof, in the specification and accompanying drawings of this application are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0053] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0054] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0055] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0056] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A method of die cutting a double-sided tape workpiece, the method comprising: The double-sided adhesive workpiece includes a release film and double-sided adhesive. The release film is divided into an operating area and an adhesion protection area. The operating area is located at one end of the adhesion protection area. The adhesion protection area matches the outer contour of the double-sided adhesive. The double-sided adhesive is adhered to the adhesion protection area. The method includes: The first paper strip, double-sided adhesive strip, release film strip, and backing film strip are stacked from top to bottom to form the first combined strip; When the first combined strip moves to the first die-cutting position, the first combined strip is die-cut and cut to the bottom film strip, so that the outer contour of the adhesion protection area is die-cut out. The first paper strip of the first combined strip after die-cutting is recycled so that the waste between the adhesion protection areas of two adjacent double-sided adhesive workpieces is recycled. A second paper strip is attached to the double-sided adhesive strip after the first paper strip has been recycled, resulting in a second combined strip; When the second composite strip moves to the second die-cutting position, the second composite strip is die-cut and cut to the release film strip of the second composite strip, so that the double-sided adhesive strip is die-cut to form the double-sided adhesive; The second paper strip of the second combined strip after die-cutting is recycled so that the waste on the double-sided adhesive strip is recovered. After recycling the second paper strip, a third paper strip is attached to the double-sided adhesive strip to obtain a third combined strip. When the third composite strip moves to the third die-cutting position, the third composite strip is die-cut and cut to the bottom film strip so that the outer contour of the operating area is die-cut out.

2. The method of die cutting a double-sided tape workpiece of claim 1, wherein, In the material feeding direction of the base film, the waste area between two adjacent adhesive protection areas after the first composite strip is die-cut partially overlaps with the waste area between two adjacent adhesive protection areas after the second composite strip is die-cut.

3. The method of die cutting a double-sided tape workpiece of claim 1, wherein, After the first composite strip is die-cut, it yields at least two rows of the outer contour of the adhesive protection area arranged horizontally along the feeding direction of the base film. After the second composite strip is die-cut, it yields at least two rows of the double-sided adhesive arranged horizontally along the feeding direction.

4. A die cutting system of double sided tape workpieces, characterized by, The double-sided adhesive workpiece includes a release film and double-sided adhesive. The release film is divided into an operating area and an adhesion protection area. The operating area is located at one end of the adhesion protection area. The adhesion protection area matches the outer contour of the double-sided adhesive. The double-sided adhesive is adhered to the adhesion protection area. The die-cutting system includes: The feeding assembly includes a raw material feeding component, a second paper feeding component, and a third paper feeding component; A first die-cutting assembly is provided with a first die for cutting the outer contour of the adhesive protection area; the first die-cutting assembly is located at a preset first die-cutting position. The second die-cutting assembly is provided with a second die for cutting the contour of the double-sided tape that overlaps with the operating area; the second die-cutting assembly is located at a preset second die-cutting position; The third die-cutting component is provided with a third die for die-cutting the outer contour of the operation area; the third die-cutting component is set at a preset third die-cutting position; A material collection assembly, which is used to collect the waste material after die-cutting by the first die-cutting assembly, the second die-cutting assembly, and the third die-cutting assembly; The first die-cutting assembly, the first die-cutting assembly, and the first die-cutting assembly are arranged sequentially along a preset material feeding direction. The raw material feeding component is used to convey the first face paper material strip, the double-sided adhesive material strip, the release film material strip, and the bottom support film material strip to form a first combined material strip before entering the first die-cutting assembly. The second face paper feeding component is used to output the second face paper material strip to the first combined material strip after the waste material is recycled from the first die-cutting assembly, so as to form a second combined material strip before entering the second die-cutting assembly. The third face paper feeding component is used to output the third face paper material strip to the second combined material strip after the waste material is recycled from the second die-cutting assembly, so as to form a third combined material strip before entering the third die-cutting assembly.

5. The die cutting system of double-sided tape workpieces of claim 4, wherein, Both the first die and the third die are etching dies.

6. The die-cutting system for double-sided adhesive workpieces according to claim 5, characterized in that, The first die-cutting assembly further includes a first metal mold, which is detachably connected to the first cutting die; the third die-cutting assembly further includes a second metal mold, which is detachably connected to the third cutting die.

7. The die-cutting system for double-sided adhesive workpieces according to claim 6, characterized in that, The second die-cutting component is an engraving mold, and the second cutting die is the blade in the engraving mold.

8. The die-cutting system for double-sided adhesive workpieces according to claim 7, characterized in that, Both the first and second hardware molds are provided with detachable positioning pins and nesting posts. The first and second cutting molds are provided with nesting holes that match the nesting posts. The base of the engraving mold is provided with positioning posts.

9. The die-cutting system for double-sided adhesive workpieces according to claim 4, characterized in that, The first die, the second die, and the third die are all single-edged blades.

10. A double-sided adhesive workpiece, characterized in that, The double-sided adhesive workpiece is produced by a die-cutting system for double-sided adhesive workpieces as described in any one of claims 4 to 9.

Images