A loop double-sided conductive adhesive and a die-cutting device thereof

Abstract

The utility model relates to the die cutting field, the utility model discloses a kind of ring double-sided conductive adhesive back and its die cutting device, die cutting device includes cutter die, cutter die includes template, first cutter, second cutter and third cutter are detachably equipped on template, second cutter includes multiple first blade and multiple second blade, first blade and second blade are staggered arrangement, second blade and first cutter one-to-one, gap is equipped between first blade and second blade, every first cutter includes first arc blade, second arc blade and two pieces L-shaped blade, L-shaped blade both ends are respectively arranged in second arc blade one end and first arc blade one end, L-shaped blade one end penetrates gap, L-shaped blade is equipped with first land face, first blade and second blade are equipped with second land face. The release film strip is cut out by second cutter and third cutter cooperation die, the ring double-sided conductive adhesive back product is cut out by first cutter, and the release film strip and product handover position can be cut off once.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting, and in particular to a ring-shaped double-sided conductive adhesive and its die-cutting device. Background Technology

[0002] Die-cutting machines, also known as die-cutting machines, cutting machines, or CNC punching machines, are mainly used for die-cutting various non-metallic materials, self-adhesive labels, EVA, double-sided tape, electronic components, mobile phone pads, etc. Die-cutting machines utilize metal molds, laser molds, wooden molds, etc., as cutting dies to cut multi-layered strips into specific shapes.

[0003] In die-cutting processes such as Figure 7 When producing the shown ring-shaped double-sided conductive adhesive tape, a frosted film 17 is adhered to the main body of the ring-shaped double-sided conductive adhesive tape as a protective layer. One end of the product is embedded in a release film strip and covered by a release film 19. Multiple ring-shaped double-sided conductive adhesive tapes are fixed by the release film strip. The height of the main body of the ring-shaped double-sided conductive adhesive tape is higher than that of the release film strip, resulting in a difference in the cutting edge height between the main body and the release film. The cutting edges at the junction of the release film strip and the ring-shaped double-sided conductive adhesive tape are not on the same horizontal plane. During the die-cutting process, there is a possibility of the tape not being cut completely and secondary die-cutting is required, reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a ring-shaped double-sided conductive adhesive and its die-cutting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a die-cutting device for a ring double-sided conductive adhesive backing, comprising a die, wherein the die comprises a template, and the template is detachably provided with a first cutter, a second cutter and a third cutter;

[0006] The second and third cutters are evenly spaced along the width of the template;

[0007] The first cutting blade array is disposed on the template, the second cutting blade is disposed between the first cutting blade and the third cutting blade, the end of the first cutting blade near the third cutting blade passes through the second cutting blade, and the height of the second cutting blade is less than the height of the first cutting blade;

[0008] The second cutter includes a plurality of first blades and a plurality of second blades, the first blades and second blades being alternately arranged, the plurality of second blades being arranged in a one-to-one correspondence with the plurality of first cutters, and a gap being provided between the first blades and the second blades;

[0009] Each of the first cutters includes a first arc-shaped blade, a second arc-shaped blade, and two L-shaped blades, with the two ends of the L-shaped blades respectively disposed at one end of the second arc-shaped blade and one end of the first arc-shaped blade;

[0010] The L-shaped blades are arranged in a one-to-one correspondence with the gaps. The L-shaped blades are connected to one end of the second arc-shaped blades and pass through the gaps. The L-shaped blades are connected to one end of the first arc-shaped blades and have a first cutting surface. The first blades and the second blades are both provided with a second cutting surface at the end near the third cutter. The first cutting surface and the second cutting surface are arranged sequentially along the direction near the third cutter.

[0011] Preferably, the first cutting surface and the second cutting surface are coplanar.

[0012] Preferably, the first blade includes a first cutting edge, a transition cutting edge, and a second cutting edge, which are connected sequentially along the direction close to the first cutting blade. The plane of the second cutting edge is located between the plane of the first cutting edge and the first arc-shaped blade, and one end of the L-shaped blade is in contact with the second cutting edge.

[0013] Preferably, the plane containing the second blade is coplanar with the plane containing the second cutting edge, and the height of the second blade is less than the height of the first blade.

[0014] Preferably, the outer diameter of the second arc-shaped blade is smaller than the inner diameter of the first arc-shaped blade.

[0015] Preferably, each of the first cutters further includes a circular blade, which is concentrically disposed inside the first arc-shaped blade. The outer diameter of the circular blade is smaller than the inner diameter of the first arc-shaped blade, and the outer diameter of the second arc-shaped blade is smaller than the inner diameter of the circular blade.

[0016] Preferably, the first blade, the second blade, and the third cutter are all long strip-shaped cutters extending along the length of the template.

[0017] Preferably, the die-cutting device further includes several elastic pads, which are embedded in the template. The circular blade, the second blade, and the end of the second blade near the template are all provided with a folding plate, which is sandwiched between the elastic pads and the template. The L-shaped blade is sandwiched between two adjacent elastic pads.

[0018] Preferably, the template has a first slot, a second slot and a third slot. One end of the first cutter is disposed inside the first slot, one end of the second cutter is disposed inside the second slot, and one end of the third cutter is disposed inside the third slot. The first slot includes a first groove and a second groove. One end of the first arc-shaped blade, two L-shaped blades and the second arc-shaped blade are all disposed in the first groove, and one end of the circular blade is disposed in the second groove.

[0019] This utility model also provides a ring-shaped double-sided conductive adhesive, which is die-cut by the die-cutting device described above. The ring-shaped double-sided conductive adhesive includes a matte film, a conductive adhesive layer, a release film, a silicone protective film, and an OPP protective film stacked in sequence. The conductive adhesive layer is evenly spaced on the release film. The matte film and the conductive adhesive layer are arranged in a one-to-one correspondence and are both in the shape of a chamfer. A through hole is opened in the middle of the matte film, and the through hole extends downward to the OPP protective film.

[0020] The beneficial effects of this invention are as follows: The release film strip is die-cut using the cooperation of the second and third cutting blades, and the ring-shaped double-sided conductive adhesive product is die-cut using the first cutting blade. The second cutting edge overlaps with one end of the L-shaped blade, preventing deformation of the second cutting edge and the L-shaped blade during die-cutting, which would affect the die-cutting effect. The first and second cutting edges work together to cut the junction between the release film strip and the ring-shaped double-sided conductive adhesive product, allowing for a one-time cut at this junction. Attached Figure Description

[0021] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of a die-cutting device provided in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle;

[0024] Figure 3 This is a schematic diagram of the structure of the first cutter provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the second cutter provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the third cutter provided in an embodiment of the present invention;

[0027] Figure 6 This is a structural schematic diagram of a ring-shaped double-sided conductive adhesive product provided in an embodiment of the present invention;

[0028] Figure 7 This is a front view of a ring-shaped double-sided conductive adhesive product provided in an embodiment of the present invention;

[0029] In the diagram, the markings are as follows: 1: Template; 2: First cutter; 3: Second cutter; 4: Third cutter; 5: First curved blade; 6: L-shaped blade; 7: Second curved blade; 8: Circular blade; 9: First blade; 10: Second blade; 11: First cutting edge; 12: Transition blade; 13: Second cutting edge; 14: First cutting surface; 15: Second cutting surface; 16: Elastic pad; 17: Fog film; 18: Conductive adhesive layer; 19: Release film; 20: Silicone protective film; 21: OPP protective film. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0031] It should be noted that, in this utility model, unless otherwise stated, when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present simultaneously. "Inner" and "outer" refer to the inner and outer contours of a specific part. "Far" and "near" refer to the distance from or near to a certain component.

[0032] like Figures 1-5 As shown in the figure, an embodiment of the present invention provides a die-cutting device for a ring double-sided conductive adhesive backing, including a die, the die including a template 1, and a first cutter 2, a second cutter 3 and a third cutter 4 detachably provided on the template 1;

[0033] The second cutter 3 and the third cutter 4 are both evenly spaced along the width direction of the template 1;

[0034] The first cutter 2 array is disposed on the template 1, the second cutter 3 is disposed between the first cutter 2 and the third cutter 4, the end of the first cutter 2 near the third cutter 4 passes through the second cutter 3, and the height of the second cutter 3 is less than the height of the first cutter 2;

[0035] The second cutter 3 includes a plurality of first blades 9 and a plurality of second blades 10, the first blades 9 and the second blades 10 are arranged alternately, the plurality of second blades 10 are arranged in a one-to-one correspondence with the plurality of first cutters 2, and a gap is provided between the first blades 9 and the second blades 10;

[0036] Each of the first cutters 2 includes a first arc-shaped blade 5, a second arc-shaped blade 7, and two L-shaped blades 6, with the two ends of the L-shaped blades 6 respectively disposed at one end of the second arc-shaped blade 7 and one end of the first arc-shaped blade 5;

[0037] The L-shaped blade 6 is configured to correspond one-to-one with the gap. The L-shaped blade 6 is connected to one end of the second arc-shaped blade 7 and passes through the gap. The L-shaped blade 6 is connected to one end of the first arc-shaped blade 5 and has a first cutting surface 14. The first blade 9 and the second blade 10 are both provided with a second cutting surface 15 near the end of the third cutter 4. The first cutting surface 14 and the second cutting surface 15 are arranged sequentially along the direction near the third cutter 4.

[0038] The release film 19 strip is die-cut using the second cutter 3 and the third cutter 4, while the ring-shaped double-sided conductive adhesive product is die-cut using the first cutter 2. The second blade 13 overlaps with one end of the L-shaped blade 6 to prevent deformation of the second blade 13 and the L-shaped blade 6 during die-cutting, thus avoiding any impact on the die-cutting effect. The first cutting surface 14 and the second cutting surface 15 work together to cut the junction between the release film 19 strip and the ring-shaped double-sided conductive adhesive product, allowing for a one-time cut at this junction.

[0039] The first cutting edge 14 and the second cutting edge 15 are coplanar. It can cut the junction of the release film 19 strip and the double-sided conductive adhesive product in one go, and quickly cut the junction of the release film 19 and the fog film 17.

[0040] The first blade 9 includes a first cutting edge 11, a transition cutting edge 12, and a second cutting edge 13. The first cutting edge 11, the transition cutting edge 12, and the second cutting edge 13 are connected sequentially along the direction close to the first cutting blade 2. The plane of the second cutting edge 13 is located between the plane of the first cutting edge 11 and the first arc-shaped blade 5. One end of the L-shaped blade 6 is in contact with the second cutting edge 13. The contour of the release film 19 material tape near the end of the double-sided conductive adhesive product is die-cut using the first cutting edge 11, the transition cutting edge 12, and the second cutting edge 13.

[0041] The plane containing the second blade 10 is coplanar with the plane containing the second cutting edge 13, and the height of the second blade 10 is less than the height of the first blade 9. This results in different thicknesses at the two ends of the double-sided conductive adhesive ring formed by die cutting.

[0042] The outer diameter of the second arc-shaped blade 7 is smaller than the inner diameter of the first arc-shaped blade 5. The smaller end of the ring-shaped double-sided conductive adhesive is formed by die-cutting with the second arc-shaped blade 7, and the main body of the ring-shaped double-sided conductive adhesive is formed by die-cutting with the first arc-shaped blade 5.

[0043] Each of the first cutting blades 2 further includes a circular blade 8, which is concentrically disposed inside the first arc-shaped blade 5. The outer diameter of the circular blade 8 is smaller than the inner diameter of the first arc-shaped blade 5, and the outer diameter of the second arc-shaped blade 7 is smaller than the inner diameter of the circular blade 8. The circular blade 8 will die-cut to form a through hole penetrating the fog film 17, the conductive adhesive layer 18, the release film 19, the silicone protective film 20, and the OPP protective film 21, cutting out the main body shape of the double-sided conductive adhesive ring.

[0044] The first blade 11, the second blade 13, and the third cutter 4 are all long strip-shaped cutters extending along the length of the template 1. The release film 19 strip is die-cut using the first blade 11, the second blade 13, and the third cutter 4. The second blade 10 and the second blade 13 will form multiple protrusions on the release film 19 strip, and the double-sided conductive adhesive product will be mated with the protrusions.

[0045] The die-cutting device also includes several elastic pads 16, which are embedded in the template 1. Each of the circular blade 8, the second blade 13, and the second blade 10 has a folding plate at one end near the template 1. The folding plate is sandwiched between the elastic pads 16 and the template 1. The L-shaped blade 6 is sandwiched between two adjacent elastic pads 16. The L-shaped blade is held and fixed by the elastic pads 16 on the folding plates of the second blade 13 and the second blade 10. Since the first arc-shaped blade 5, the two L-shaped blades 6, and the second arc-shaped blade 7 are integrally formed and connected, the first arc-shaped blade 5, the second arc-shaped blade 7, and the two L-shaped blades 6 are held and fixed to the template 1 by the two elastic pads 16.

[0046] The template 1 has a first slot, a second slot, and a third slot. One end of the first cutter 2 is disposed inside the first slot, one end of the second cutter 3 is disposed inside the second slot, and one end of the third cutter 4 is disposed inside the third slot. The first slot includes a first groove and a second groove. One end of the first arc-shaped blade 5, the two L-shaped blades 6, and the second arc-shaped blade are all disposed in the first groove, and one end of the circular blade 8 is disposed in the second groove. The second groove is annular. The first arc-shaped blade 5, the two L-shaped blades 6, and the second arc-shaped blade are positioned through the first groove; the circular blade 8 is positioned through the second groove; the second cutter 3 is positioned through the second slot; and the third cutter 4 is positioned through the third slot, ensuring the accuracy of the first cutter 2, the second cutter 3, and the third cutter 4 during die-cutting.

[0047] like Figures 6-7As shown in the figure, this embodiment provides a ring-shaped double-sided conductive adhesive, which is die-cut by the die-cutting device of the above embodiment. The ring-shaped double-sided conductive adhesive includes a fog film 17, a conductive adhesive layer 18, a release film 19, a silicone protective film 20, and an OPP protective film 21 stacked in sequence. The conductive adhesive layer 18 is evenly spaced on the release film 19. The fog film 17 and the conductive adhesive layer 18 are arranged in a one-to-one correspondence and are both in the shape of a cleft or right corner. A through hole is opened in the middle of the fog film 17, and the through hole extends downward to the OPP protective film 21.

[0048] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these should all be considered to be within the scope of this specification.

Claims

1. A die-cutting device for a ring-shaped double-sided conductive adhesive backing, characterized in that: The die includes a die template, on which a first cutting blade, a second cutting blade, and a third cutting blade are detachably provided; The second and third cutters are evenly spaced along the width of the template; The first cutting blade array is disposed on the template, the second cutting blade is disposed between the first cutting blade and the third cutting blade, the end of the first cutting blade near the third cutting blade passes through the second cutting blade, and the height of the second cutting blade is less than the height of the first cutting blade; The second cutter includes a plurality of first blades and a plurality of second blades, the first blades and second blades being alternately arranged, the plurality of second blades being arranged in a one-to-one correspondence with the plurality of first cutters, and a gap being provided between the first blades and the second blades; Each of the first cutters includes a first arc-shaped blade, a second arc-shaped blade, and two L-shaped blades, with the two ends of the L-shaped blades respectively disposed at one end of the second arc-shaped blade and one end of the first arc-shaped blade; The L-shaped blades are arranged in a one-to-one correspondence with the gaps. The L-shaped blades are connected to one end of the second arc-shaped blades and pass through the gaps. The L-shaped blades are connected to one end of the first arc-shaped blades and have a first cutting surface. The first blades and the second blades are both provided with a second cutting surface at the end near the third cutter. The first cutting surface and the second cutting surface are arranged sequentially along the direction near the third cutter.

2. The die-cutting device according to claim 1, characterized in that: The first cutting edge and the second cutting edge are coplanar.

3. The die-cutting apparatus according to claim 1, characterized in that: The first blade includes a first cutting edge, a transition cutting edge, and a second cutting edge. The first cutting edge, the transition cutting edge, and the second cutting edge are connected sequentially along the direction close to the first cutting blade. The plane where the second cutting edge is located is disposed between the plane where the first cutting edge is located and the first arc-shaped blade. One end of the L-shaped blade is in contact with the second cutting edge.

4. The die-cutting apparatus according to claim 3, characterized in that: The plane containing the second blade is coplanar with the plane containing the second cutting edge, and the height of the second blade is less than the height of the first blade.

5. The die-cutting apparatus according to claim 1, characterized in that: The outer diameter of the second arc-shaped blade is smaller than the inner diameter of the first arc-shaped blade.

6. The die-cutting apparatus according to claim 3, characterized in that: Each of the first cutters further includes a circular blade, which is concentrically disposed inside the first arc-shaped blade. The outer diameter of the circular blade is smaller than the inner diameter of the first arc-shaped blade, and the outer diameter of the second arc-shaped blade is smaller than the inner diameter of the circular blade.

7. The die-cutting apparatus according to claim 3, characterized in that: The first blade, the second blade, and the third cutter are all long strip-shaped cutters that extend along the length of the template.

8. The die-cutting apparatus according to claim 6, characterized in that: The die-cutting device also includes several elastic pads, which are embedded in the template. The circular blade, the second blade, and the end of the second blade near the template are all provided with a folding plate, which is sandwiched between the elastic pads and the template. The L-shaped blade is sandwiched between two adjacent elastic pads.

9. The die-cutting apparatus according to claim 6, characterized in that: The template has a first slot, a second slot and a third slot. One end of the first cutter is located inside the first slot, one end of the second cutter is located inside the second slot, and one end of the third cutter is located inside the third slot. The first slot includes a first groove and a second groove. One end of the first arc-shaped blade, two L-shaped blades and the second arc-shaped blade are all located in the first groove, and one end of the circular blade is located in the second groove.

10. A ring-shaped double-sided conductive adhesive, characterized in that: The ring double-sided conductive adhesive is die-cut by any one of the die-cutting devices as described in any one of claims 1 to 9. The ring double-sided conductive adhesive includes a fog film, a conductive adhesive layer, a release film, a silicone protective film and an OPP protective film stacked in sequence. The conductive adhesive layer is evenly spaced on the release film. The fog film and the conductive adhesive layer are arranged in a one-to-one correspondence and are both in the shape of a circle or segment. A through hole is opened in the middle of the fog film and the through hole extends downward to the OPP protective film.

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