A die cutting apparatus for single layer conductive cloth

Abstract

The application provides a die cutting device for single-layer conductive cloth, and belongs to the technical field of die cutting of conductive cloth. The die cutting device for single-layer conductive cloth comprises a die cutting platform and a die cutting assembly arranged on the die cutting platform. The die cutting assembly comprises an upper die plate and a lower die plate. An installation plate is arranged on the upper die plate. A die cutting plate is arranged on the installation plate. A die cutting knife is arranged at the bottom of the die cutting plate. The die cutting device further comprises a guide limiting assembly arranged on the die cutting assembly. The guide limiting assembly clamps and isolates both sides of the conductive cloth. The die cutting area length is actively released during die cutting by cooperating with a tension compensation assembly. The conductive cloth is changed from a tension state to a low-tension and flat state. The stretching and deformation problem of the conductive cloth caused by the feeding tension in the prior art is significantly reduced. The size shrinkage caused by stress release after die cutting is reduced. The die cutting size stability is improved.

Description

Technical Field

[0001] This invention belongs to the field of conductive fabric die-cutting technology, specifically relating to a die-cutting device for single-layer conductive fabric. Background Technology

[0002] Single-layer conductive fabric is generally formed by coating a conductive metal layer onto the surface of a fiber substrate. It features high flexibility, thinness, easy bending, and stable conductivity. It plays an important role in the miniaturization and lightweight design of electronic products. Since single-layer conductive fabric usually needs to be processed into irregular shapes, ring structures, or tiny conductive areas, it needs to be precisely die-cut using die-cutting equipment to ensure the dimensional accuracy and edge quality of the conductive fabric products.

[0003] Chinese patent CN116653051B discloses a processing device for irregularly shaped conductive cloth, including a base plate. One side of the base plate is provided with a first wheel for releasing the conductive cloth, and the other side of the base plate is provided with a second wheel for winding the conductive cloth. Multiple through slots are opened on the base plate, and the shape of the through slots is the same as that of the irregularly shaped conductive cloth to be processed. A punching unit is provided above the through slots. The structural design of the irregularly shaped conductive cloth processing device of the present invention punches out the irregularly shaped conductive cloth in one go by punching. Compared with cutting the irregularly shaped conductive cloth along the edge line, this punching method can process irregularly shaped conductive cloth with more regular edges, so that the irregularly shaped conductive cloth can cover the electronic module that needs to shield the signal. As for the shape design of the through slots and punching blocks, they are the same as the shape of the irregularly shaped conductive cloth to be punched out, and the through slots and punching blocks are made according to production needs.

[0004] However, the above technical solution still has the following defects: the conductive cloth in the solution is still under tension during the die-cutting process, and the conductive cloth is limited only by pressing, which cannot release the residual tension in the die-cutting area. This causes the conductive cloth to be easily stretched and deformed during die-cutting, and shrinkage and local wrinkling after die-cutting, thereby affecting the die-cutting accuracy and dimensional stability of the conductive cloth. Summary of the Invention

[0005] The purpose of this invention is to provide a die-cutting device for single-layer conductive cloth, which aims to solve the problem that conductive cloth is prone to stretching deformation due to tension during the die-cutting process and shrinkage after die-cutting in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a die-cutting device for a single-layer conductive fabric, comprising: a die-cutting platform and a die-cutting assembly disposed on the die-cutting platform, the die-cutting assembly including an upper template and a lower template, a mounting plate disposed on the upper template, a die-cutting plate disposed on the mounting plate, and a die-cutting blade disposed at the bottom of the die-cutting plate, and further comprising: A guide and limiting assembly is provided on the die-cutting assembly. The guide and limiting assembly includes a first limiting frame and a second limiting frame provided on both sides of the lower template. A first pressure roller and a second pressure roller for pressing the conductive cloth are respectively provided on the first limiting frame and the second limiting frame. A tension compensation component is set on the guide limit component. The tension compensation component includes a compensation frame rotatably set on the second limit frame, a compensation roller rotatably set on the compensation frame, and the second limit frame slidably set on the lower template. The pressure flattening component is mounted on the die-cutting component. The pressure flattening component includes a pressure block that is slidably mounted on the bottom of the die-cutting plate. Two sets of flattening plates are slidably mounted on the bottom of the mounting plate. The bottom of the pressure block and the flattening plates are both lower than the cutting end of the die-cutting blade.

[0007] Its effects are as follows: through the synergistic effect of guide limiting, tension compensation and downward flattening, low-tension die-cutting of conductive cloth is achieved, effectively reducing stretching deformation, shrinkage and sticking to the blade, and improving die-cutting accuracy and forming quality.

[0008] A further technical solution of the present invention is that the lower template is set on the die-cutting platform, the upper template is slidably set above the lower template, the die-cutting platform is provided with a driving device that can control the upper template to move up and down, the mounting plate is set on the side of the upper template close to the lower template, the die-cutting plate is set on the side of the mounting plate close to the lower template, and multiple sets of die-cutting blades are provided, each set of die-cutting blades being annular.

[0009] A further technical solution of the present invention is that the first limiting frame is disposed on the discharge side of the lower template, the first limiting frame is fixedly disposed on the lower template, a first limiting block is slidably disposed on the first limiting frame, the first limiting block is disposed above the conductive cloth, the first pressure roller is rotatably disposed on the side of the first limiting block close to the conductive cloth, and a first support roller that cooperates with the first pressure roller is rotatably disposed on the lower template, the first pressure roller is disposed directly above the first support roller.

[0010] A further technical solution of the present invention is that a first pressure plate is slidably arranged on the first limiting frame, the first pressure plate is arranged above the first limiting frame, a first elastic element is arranged on the first limiting block, the other end of the first elastic element is connected to the first pressure plate, a main limiting plate is arranged on the side of the upper template near the first limiting frame, a main stud is threadedly connected to the main limiting plate, and the main stud is arranged above the first pressure plate.

[0011] A further technical solution of the present invention is that the second limiting frame is disposed on the feeding side of the lower template, the second limiting frame is slidably disposed on the lower template, a second limiting block is slidably disposed on the second limiting frame, the structure and function of the second limiting block are the same as the first limiting block, the second pressure roller is rotatably disposed on the side of the second limiting block near the conductive cloth, and a second support roller that cooperates with the second pressure roller is rotatably disposed on the second limiting frame, the second support roller is disposed directly below the second pressure roller.

[0012] Its effect is that the second pressure roller and the second support roller pre-limit the conductive cloth on the feeding side, ensuring that the conductive cloth enters the die-cutting area smoothly and reducing the impact of feeding deviation on the die-cutting accuracy.

[0013] A further technical solution of the present invention is that a second pressure plate is slidably arranged on the second limiting frame, a second elastic element is arranged on the second limiting block, the other end of the second elastic element is connected to the second pressure plate, a secondary limiting plate is arranged on the side of the upper template near the second limiting frame, a secondary stud is threadedly connected to the secondary limiting plate, a sliding plate is arranged at the bottom of the secondary limiting plate, the secondary stud is rotatably arranged on the sliding plate, and the sliding plate is arranged above the second pressure plate.

[0014] A further technical solution of the present invention is that the compensation roller is disposed above the conductive cloth, a third elastic element is disposed on the compensation frame, the other end of the third elastic element is connected to the second limiting frame, a fourth elastic element is connected to one side of the second limiting frame, the other end of the fourth elastic element is connected to the lower template, an L-shaped push plate is disposed on the sub-limiting plate, an inclined surface is disposed on the side of the L-shaped push plate away from the sub-limiting plate, and a push block that cooperates with the inclined surface of one end of the L-shaped push plate is disposed on the side of the second limiting frame.

[0015] A further technical solution of the present invention is that the lower pressure block is disposed inside the die-cutting blade, a fifth elastic element is disposed on the lower pressure block, the other end of the fifth elastic element is connected to the die-cutting plate, the unfolding plate is symmetrically disposed on both sides of the die-cutting plate near the main limiting plate and the secondary limiting plate, sliding pillars are disposed on both sides of the unfolding plate, a sliding groove that cooperates with the sliding pillar is disposed on the inner side of the mounting plate, the sliding groove is inclined, a guide plate is slidably disposed on the inner side of the mounting plate, the top of the unfolding plate contacts and slides with the bottom of the guide plate, a sixth elastic element is disposed on the side of the guide plate away from the unfolding plate, the other end of the sixth elastic element is connected to the mounting plate, and the bottom end faces of the lower pressure block and the unfolding plate are both made of rubber.

[0016] Its effect is that the lower pressure block presses the inner area before the die-cutting blade, the unfolding plate slides obliquely to unfold the fabric, and continues to limit the position after die-cutting, effectively preventing wrinkles, warping and sticking to the blade, and improving edge quality.

[0017] A further technical solution of the present invention is that the upper surface of the lower template is provided with multiple sets of adsorption holes, and the adsorption holes are connected to an external negative pressure source.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention clamps and isolates the conductive cloth on both sides through the guide limiting component, and actively releases the length of the die-cutting area during die-cutting with the tension compensation component, so that the conductive cloth changes from a tensile state to a low tension state and remains straight. This significantly reduces the problem of conductive cloth stretching deformation caused by feeding tension in the prior art, and reduces the dimensional shrinkage caused by stress release after die-cutting, thereby improving the stability of die-cutting dimensions.

[0019] 2. This invention uses a pressure-flattening component to pre-press and limit the conductive cloth and laterally flatten it, and uses negative pressure adsorption to stabilize and fix the die-cutting area. This keeps the conductive cloth flat and with low displacement before die-cutting, and continues to limit it after die-cutting to prevent it from being carried away by the cutter. This effectively reduces sticking to the cutter, wrinkling and edge fuzz, and improves the forming quality and processing consistency of irregularly shaped conductive cloth. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention; Figure 2 This is a partial structural diagram of a specific embodiment of the present invention; Figure 3 This is a partial structural cross-sectional view of a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first limiting frame in a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the second limiting frame in a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the installation structure of the second limiting frame and the compensation frame in a specific embodiment of the present invention; Figure 7 for Figure 3 Enlarged structural diagram at point A; Figure 8 This is a schematic diagram of the internal structure of the mounting plate and the die-cutting plate in a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the mounting plate and the die-cutting plate in a specific embodiment of the present invention; Figure 10 This is a schematic diagram of the installation structure of the flat plate and sliding column in a specific embodiment of the present invention.

[0021] In the diagram: 1. Die-cutting platform; 2. Die-cutting assembly; 21. Lower template; 211. Adsorption hole; 22. Upper template; 221. Mounting plate; 23. Die-cutting plate; 231. Die-cutting blade; 3. Guide and limiting assembly; 31. First limiting frame; 311. First limiting block; 312. First pressure roller; 313. First support roller; 314. First pressure plate; 315. First elastic element; 32. Second limiting frame; 321. Second limiting block; 322. Second pressure roller; 323. Second support roller; 324. Second pressure plate; 325, second elastic element; 33, main limiting plate; 331, main stud; 34, secondary limiting plate; 341, secondary stud; 342, sliding plate; 4, tension compensation assembly; 41, compensation frame; 411, third elastic element; 42, compensation roller; 43, fourth elastic element; 44, L-shaped push plate; 45, push block; 5, downward pressing and flattening assembly; 51, downward pressing block; 52, fifth elastic element; 53, flattening plate; 531, sliding column; 532, sliding groove; 54, guide plate; 541, sixth elastic element. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-10 The present invention provides the following technical solution: a die-cutting device for a single layer of conductive cloth, comprising a die-cutting platform 1, a die-cutting assembly 2, a guide and limiting assembly 3, a tension compensation assembly 4, and a pressing and flattening assembly 5.

[0024] A die-cutting platform 1 is placed horizontally on the ground. A single layer of conductive fabric to be die-cut is laid on the platform. A die-cutting assembly 2 is mounted on the platform and can die-cut the conductive fabric into a specified shape. A guide and limiting assembly 3 is mounted on the die-cutting assembly 2. When the die-cutting assembly 2 starts working, the guide and limiting assembly 3 clamps and limits both sides of the die-cutting area of ​​the conductive fabric, ensuring that the conductive fabric in the die-cutting area is isolated from other areas while being guided. A tension compensation assembly 4 is mounted on the guide and limiting assembly 3. After the guide and limiting assembly 3 clamps and limits the conductive fabric, the tension compensation assembly 4 compensates for the length and adjusts the tension of the conductive fabric in the die-cutting area, changing the conductive fabric from a taut state to a low-tension state and maintaining a straight state, reducing tensile deformation during die-cutting and shrinkage after die-cutting. The pressure flattening component 5 is installed on the die-cutting component 2. Before the die-cutting component 2 cuts the conductive cloth, the pressure flattening component 5 can press down and flatten the conductive cloth to reduce wrinkles and wave deformation of the conductive cloth. After the die-cutting is completed, the pressure flattening component 5 continues to press down and flatten the conductive cloth to reduce the situation of the conductive cloth adhering to the die-cutting component 2.

[0025] like Figures 1-3 and Figures 7-9 As shown, the die-cutting assembly 2 includes a lower template 21 mounted on a die-cutting platform 1. The conductive material to be die-cut is arranged on the upper surface of the lower template 21. An upper template 22 is slidably mounted above the lower template 21 and can move up and down to approach or move away from the lower template 21. A driving device (not shown in the figure) is installed inside the die-cutting platform 1. The output end of the driving device is connected to the upper template 22, and the driving device can control the up and down movement of the upper template 22. A mounting plate 221 is provided on the side of the upper template 22 near the lower template 21. The mounting plate 221 is detachably mounted on the upper template 22. A die-cutting plate 23 is provided on the side of the mounting plate 221 near the lower template 21 and is detachably mounted on the mounting plate 221. A die-cutting blade 231 is provided on the side of the die-cutting plate 23 near the lower template 21. Multiple sets of die-cutting blades 231 are provided, and each set of die-cutting blades 231 is annular, enabling it to cut out the required shape of conductive fabric.

[0026] At the start of operation, the conductive cloth is first passed through the die-cutting area between the upper template 22 and the lower template 21 and placed on the lower template 21. Then, the drive device is activated, controlling the upper template 22 to move downwards and approach the lower template 21. The die-cutting blade 231 at the bottom of the die-cutting plate 23 contacts the conductive cloth and die-cuts it. Since one side of the conductive cloth adheres to the base film, and the base film is located on the side of the conductive cloth closer to the lower template 21, when the die-cutting blade 231 die-cuts the conductive cloth, it can cut the conductive cloth into a fixed shape without damaging the base film. At the same time, the die-cut conductive cloth can continue to move with the base film, realizing continuous die-cutting of the conductive cloth.

[0027] like Figures 2-5 As shown, the guide and limiting assembly 3 includes a first limiting frame 31 and a second limiting frame 32 disposed on both sides of the lower template 21. The second limiting frame 32 is disposed on the feeding side of the lower template 21, and the first limiting frame 31 is disposed on the discharge side of the lower template 21. The conductive cloth enters the die-cutting area from the side of the second limiting frame 32 and exits from the side of the first limiting frame 31 after die-cutting. The first limiting frame 31 is fixedly disposed on the lower template 21, and a first limiting block 311 is slidably disposed on the first limiting frame 31. The first limiting block 311 is disposed above the conductive cloth and can move up and down to approach or move away from the conductive cloth. A first pressure roller 312 is rotatably disposed on the side of the first limiting block 311 that is close to the conductive cloth, and the first pressure roller 312 can contact the conductive cloth. A first support roller 313 that cooperates with the first pressure roller 312 is rotatably disposed on the lower template 21. The first pressure roller 312 is disposed directly above the first support roller 313, and the first support roller 313 is disposed below the conductive cloth.

[0028] A first pressure plate 314 is slidably mounted on the first limiting frame 31 and is positioned above the first limiting frame 31. A first elastic element 315 is mounted on the first limiting block 311, with the other end of the first elastic element 315 connected to the first pressure plate 314. In the initial state, under the action of the first elastic element 315 and the first pressure plate 314, the first limiting block 311 can be pressed downwards, and the first pressure roller 312 can press the conductive cloth onto the first support roller 313. In this embodiment, the first elastic element 315 is set as a spring. A main limiting plate 33 is mounted on the upper template 22 near the first limiting frame 31. A main stud 331 is threaded onto the main limiting plate 33 and is positioned above the first pressure plate 314. Rotating the main stud 331 can control its up-and-down movement along the main limiting plate 33. When the main stud 331 moves downwards, its bottom can contact the upper surface of the first pressure plate 314.

[0029] In the initial state, the bottom of the main stud 331 can contact the upper surface of the first pressure plate 314 and pre-compress the first elastic element 315. The first pressure plate 314 presses down on the first limiting block 311 through the first elastic element 315, so that the first pressure roller 312 presses the conductive cloth tightly onto the first support roller 313, thereby guiding and limiting the conductive cloth. When the upper template 22 moves down for die cutting, the main stud 331 moves down synchronously with the upper template 22. The main stud 331 pushes the first pressure plate 314 down further to increase the holding force of the first pressure roller 312 on the conductive cloth, enhance the limiting stability of the conductive cloth during the die cutting process, and prevent the conductive cloth from being displaced or retracted due to tension, thereby improving the dimensional stability of the conductive cloth during die cutting.

[0030] like Figures 2-3 and Figures 5-6As shown, the second limiting frame 32 is slidably mounted on the lower template 21. A second limiting block 321 is slidably mounted on the second limiting frame 32. The structure and function of the second limiting block 321 are the same as those of the first limiting block 311, so they will not be described again. A second pressure roller 322 is rotatably mounted on the side of the second limiting block 321 near the conductive cloth, and the second pressure roller 322 can contact the conductive cloth. A second support roller 323 that cooperates with the second pressure roller 322 is rotatably mounted on the second limiting frame 32. The second support roller 323 is located directly below the second pressure roller 322 and below the conductive cloth.

[0031] A second pressure plate 324 is slidably mounted on the second limiting frame 32, and a second elastic element 325 is mounted on the second limiting block 321. The other end of the second elastic element 325 is connected to the second pressure plate 324. In this embodiment, the second elastic element 325 is configured as a spring. The working principle of the second pressure plate 324 and the second elastic element 325 is the same as that of the first pressure plate 314 and the first elastic element 315, so it will not be described again. A secondary limiting plate 34 is mounted on the side of the upper template 22 near the second limiting frame 32. A secondary stud 341 is threaded onto the secondary limiting plate 34, and a sliding plate 342 is mounted at the bottom of the secondary limiting plate 34. The secondary stud 341 is fixedly and rotatably mounted on the sliding plate 342. The sliding plate 342 is positioned above the second pressure plate 324. Rotating the secondary stud 341 can control the sliding plate 342 to move up and down along the secondary limiting plate 34. When the sliding plate 342 moves down along the secondary limiting plate 34, the bottom of the sliding plate 342 can contact the upper surface of the second pressure plate 324.

[0032] After the secondary stud 341 rotates, it drives the slide plate 342 to move downward. The slide plate 342 presses down on the second pressure plate 324, and the second elastic element 325 pushes the second limiting block 321 downward, so that the second pressure roller 322 presses the conductive cloth tightly onto the second support roller 323, thereby guiding and pre-limiting the conductive cloth. During die cutting, the upper template 22 moves down and drives the secondary limiting plate 34 to move down synchronously, so that the slide plate 342 further presses the second pressure plate 324, thereby increasing the holding force of the second pressure roller 322 on the conductive cloth.

[0033] During operation, the conductive cloth enters the die-cutting area from the side of the second limiting frame 32 and exits from the side of the first limiting frame 31. In the initial state, the first elastic element 315 and the second elastic element 325 respectively push the first limiting block 311 and the second limiting block 321 downward, so that the first pressure roller 312 and the second pressure roller 322 press the conductive cloth tightly onto the first support roller 313 and the second support roller 323, realizing the guidance and pre-limiting of the conductive cloth. During die-cutting, the upper template 22 moves downward, and the main stud 331 and the slide plate 342 further press the first pressure plate 314 and the second pressure plate 324 to increase the holding force of the first pressure roller 312 and the second pressure roller 322 on the conductive cloth, thereby enhancing the limiting stability of the conductive cloth during the die-cutting process and reducing the problems of displacement, shrinkage and dimensional deviation caused by tension.

[0034] like Figure 3 and Figures 5-6 As shown, the tension compensation assembly 4 includes a compensation frame 41 rotatably mounted on the second limiting frame 32. A compensation roller 42 is rotatably mounted on one end of the compensation frame 41, and the compensation roller 42 is positioned above the conductive cloth. A third elastic element 411 is mounted on the compensation frame 41, and the other end of the third elastic element 411 is connected to the second limiting frame 32. In the initial state, under the action of the third elastic element 411, the compensation frame 41 can be rotated, causing the compensation roller 42 to press tightly against the upper surface of the conductive cloth. In this embodiment, the third elastic element 411 is a torsion spring. A fourth elastic element 43 is connected to one side of the second limiting frame 32, and the other end of the fourth elastic element 43 is connected to the lower template 21. In the initial state, under the action of the fourth elastic element 43, the second limiting frame 32 can be moved away from the die-cutting area. In this embodiment, the fourth elastic element 43 is a spring.

[0035] An L-shaped push plate 44 is provided on the secondary limiting plate 34. The side of the L-shaped push plate 44 away from the secondary limiting plate 34 has an inclined surface. The side of the second limiting frame 32 is provided with a push block 45 that cooperates with the inclined surface of one end of the L-shaped push plate 44. Initially, the L-shaped push plate 44 and the push block 45 are not in contact. After the secondary limiting plate 34 moves downward a certain distance, the inclined surface at the end of the L-shaped push plate 44 begins to contact the push block 45, and pushes the second limiting frame 32 to move towards the side closer to the die-cutting area through the push block 45, that is, along the conductive cloth conveying direction. At this time, the fourth elastic element 43 is stretched by force.

[0036] In the initial state, the third elastic element 411 pushes the compensation frame 41 to rotate, causing the compensation roller 42 to press against the upper surface of the conductive cloth. At this time, under the action of the fourth elastic element 43, the second limiting frame 32 moves away from the die-cutting area. The third elastic element 411 itself has a small elastic force, and the pressing force it applies to the compensation roller 42 is less than the traction tension experienced by the conductive cloth when it is fed. Therefore, when the conductive cloth moves, it can drive the compensation roller 42 to rotate synchronously without significantly hindering the movement of the conductive cloth. During die-cutting, the upper template 22 moves down and drives the secondary limiting plate 34 to move down synchronously. First, the pressing force of the first pressure roller 312 and the second pressure roller 322 on the conductive cloth is increased, pressing it against the first support roller 313 and the second support roller 323, so that the conductive cloth is stably fixed in the die-cutting area and prevents it from moving. Subsequently, the inclined surface at the end of the L-shaped push plate 44 contacts the push block 45 and pushes the second limiting frame 32 to move closer to the die-cutting area, thereby releasing the length of the conductive cloth in the die-cutting area to reduce the tension of the conductive cloth during die-cutting and reduce displacement, shrinkage, and dimensional deviation caused by the stretching of the conductive cloth. After the tension of the conductive cloth is reduced, the compensation frame 41 rotates under the action of the third elastic element 411, so that the compensation roller 42 continuously presses the conductive cloth with a low tension to compensate for the length of the conductive cloth, keeping the conductive cloth straight under low tension, thereby improving the die-cutting accuracy.

[0037] like Figures 7-10As shown, the pressing and flattening assembly 5 includes a pressing block 51 slidably disposed at the bottom of the die-cutting plate 23. The pressing block 51 is disposed inside the die-cutting blade 231. A fifth elastic element 52 is disposed on the pressing block 51. The other end of the fifth elastic element 52 is connected to the die-cutting plate 23. In the initial state, under the action of the fifth elastic element 52, the bottom end face of the pressing block 51 is lower than the cutting end of the die-cutting blade 231, so that the bottom end face of the pressing block 51 is closer to the conductive cloth than the die-cutting blade 231. In this embodiment, the fifth elastic element 52 is set as a spring. Two sets of spreading plates 53 are slidably arranged at the bottom of the mounting plate 221. The spreading plates 53 are symmetrically arranged on both sides of the die-cutting plate 23 near the main limiting plate 33 and the secondary limiting plate 34. Sliding columns 531 are arranged on both sides of the spreading plates 53. Sliding grooves 532 that cooperate with the sliding columns 531 are arranged on the inner side of the mounting plate 221. The sliding grooves 532 are inclined. When the spreading plates 53 move away from the die-cutting plate 23, the spreading plates 53 can gradually move into the mounting plate 221 under the action of the sliding grooves 532. A guide plate 54 is slidably disposed on the inner side of the mounting plate 221. The top of the spreading plate 53 contacts and slides with the bottom of the guide plate 54. A sixth elastic element 541 is disposed on the side of the guide plate 54 away from the spreading plate 53. The other end of the sixth elastic element 541 is connected to the mounting plate 221. In the initial state, under the action of the sixth elastic element 541, the bottom end face of the spreading plate 53 is lower than the end of the die-cutting blade 231 used for die-cutting. In this embodiment, the sixth elastic element 541 is set as a spring, and both the lower pressure block 51 and the bottom end face of the spreading plate 53 are made of rubber to avoid damaging the surface of the conductive cloth when they come into contact with it.

[0038] In the initial state, under the action of the fifth elastic element 52 and the sixth elastic element 541, the bottom end faces of the pressing block 51 and the spreading plate 53 are both lower than the cutting end of the die-cutting blade 231, allowing them to contact the conductive cloth surface before the die-cutting blade 231, thus forming a pre-contact state. When the upper template 22 drives the die-cutting plate 23 to move downward, the pressing block 51 first contacts the conductive cloth, pre-pressing and limiting the conductive cloth in the inner area of ​​the die-cutting blade 231, and elastically contacts the conductive cloth under the elastic buffering action of the fifth elastic element 52 to reduce local wrinkling or warping. At the same time, the spreading plates 53 located on both sides of the die-cutting blade 231 slide horizontally under the guidance of the inclined slide groove 532 during the downward pressing process, gradually sliding horizontally away from the die-cutting blade 231, and applying a lateral flattening force to the conductive cloth under the action of the sixth elastic element 541, so that the conductive cloth completes local flattening and tension release before die-cutting. During the flattening process, the flattening plate 53 remains in contact with the conductive cloth throughout its movement, and the guide plate 54 limits and guides the flattening plate 53, causing it to move back and forth along a set trajectory, thereby ensuring that the flattening action is stable and reliable.

[0039] The die-cutting blade 231 then continues its downward movement to complete the cutting action. At this point, the conductive cloth is already pre-compressed and flattened, which helps improve the stability of the die-cutting dimensions and reduce burrs and deformation. After die-cutting is completed, the die-cutting plate 23 moves upward and resets. The die-cutting blade 231 first moves upward and disengages from the conductive cloth. At this time, the lower pressure block 51 and the flat plate 53 remain in contact with the conductive cloth to prevent the conductive cloth from adhering to the die-cutting blade 231 at the cut position. Subsequently, the lower pressure block 51 and the flat plate 53 reset to their initial low position under the action of the fifth elastic element 52 and the sixth elastic element 541, and disengage from the conductive cloth, completing one work cycle.

[0040] like Figure 3 and Figure 7 As shown, the upper surface of the lower template 21 is provided with multiple sets of adsorption holes 211. The adsorption holes 211 are connected to an external negative pressure source, forming a negative pressure adsorption area during the die-cutting process, which is used to stably adsorb and position the bottom film under the conductive cloth. During operation, when the conductive cloth enters the die-cutting area with the feeding mechanism and completes step positioning, the negative pressure system is activated. A uniform negative pressure is formed on the upper surface of the lower template 21 through the adsorption holes 211, so that the bottom film is tightly attached to the surface of the lower template 21, thereby limiting the slippage and lifting of the conductive cloth and the bottom film during the die-cutting process. During die-cutting, the conductive cloth remains stable under the combined action of the upper limiting component and the lower negative pressure adsorption, so that the die-cutting area is in a controlled state of low displacement and high adhesion, thereby improving the die-cutting dimensional accuracy.

Claims

1. A die-cutting apparatus for a single-layer conductive cloth, comprising: The die-cutting platform (1) and the die-cutting assembly (2) disposed on the die-cutting platform (1) are characterized in that the die-cutting assembly (2) includes an upper template (22) and a lower template (21), a mounting plate (221) is disposed on the upper template (22), a die-cutting plate (23) is disposed on the mounting plate (221), and a die-cutting blade (231) is disposed at the bottom of the die-cutting plate (23), and further includes: The guide limiting component (3) is set on the die-cutting component (2). The guide limiting component (3) includes a first limiting frame (31) and a second limiting frame (32) set on both sides of the lower template (21). The first limiting frame (31) and the second limiting frame (32) are respectively provided with a first pressure roller (312) and a second pressure roller (322) for pressing the conductive cloth. The upper template (22) is provided with a secondary limiting plate (34) on the side near the second limiting frame (32). Tension compensation component (4) is set on guide limit component (3). Tension compensation component (4) includes compensation frame (41) rotatably set on second limit frame (32). Compensation roller (42) is rotatably set on compensation frame (41). Second limit frame (32) is slidably set on lower template (21). Compensation roller (42) is set above conductive cloth. Third elastic element (411) is set on compensation frame (41). The other end of third elastic element (411) is connected to second limit frame (32). Fourth elastic element (43) is connected to one side of second limit frame (32). The other end of fourth elastic element (43) is connected to lower template (21). L-shaped push plate (44) is set on sub-limit plate (34). Inclined surface is set on the side of L-shaped push plate (44) away from sub-limit plate (34). Push block (45) that cooperates with the inclined surface of one end of L-shaped push plate (44) is set on the side of second limit frame (32). The pressure flattening component (5) is set on the die-cutting component (2). The pressure flattening component (5) includes a pressure block (51) that is slidably set at the bottom of the die-cutting plate (23). Two sets of flattening plates (53) are slidably set at the bottom of the mounting plate (221). The bottom of the pressure block (51) and the flattening plate (53) are both lower than the cutting end of the die-cutting blade (231).

2. The die-cutting device for a single-layer conductive cloth according to claim 1, characterized in that: The lower template (21) is set on the die-cutting platform (1), and the upper template (22) is slidably set above the lower template (21). The die-cutting platform (1) is equipped with a drive device that can control the upper template (22) to move up and down. The mounting plate (221) is set on the side of the upper template (22) close to the lower template (21), and the die-cutting plate (23) is set on the side of the mounting plate (221) close to the lower template (21). There are multiple sets of die-cutting blades (231), and each set of die-cutting blades (231) is in the shape of a ring.

3. The die-cutting device for a single-layer conductive cloth according to claim 1, characterized in that: The first limiting frame (31) is set on the discharge side of the lower template (21). The first limiting frame (31) is fixedly set on the lower template (21). A first limiting block (311) is slidably set on the first limiting frame (31). The first limiting block (311) is set above the conductive cloth. The first pressure roller (312) is rotatably set on the side of the first limiting block (311) close to the conductive cloth. A first support roller (313) that cooperates with the first pressure roller (312) is rotatably set on the lower template (21). The first pressure roller (312) is set directly above the first support roller (313).

4. The die-cutting device for a single-layer conductive cloth according to claim 3, characterized in that: A first pressure plate (314) is slidably disposed on the first limiting frame (31), the first pressure plate (314) is disposed above the first limiting frame (31), a first elastic element (315) is disposed on the first limiting block (311), the other end of the first elastic element (315) is connected to the first pressure plate (314), a main limiting plate (33) is disposed on the side of the upper template (22) near the first limiting frame (31), a main stud (331) is threadedly connected to the main limiting plate (33), and the main stud (331) is disposed above the first pressure plate (314).

5. A die-cutting device for a single-layer conductive cloth according to claim 4, characterized in that: The second limiting frame (32) is set on the feeding side of the lower template (21). The second limiting frame (32) is slidably set on the lower template (21). A second limiting block (321) is slidably set on the second limiting frame (32). The structure and function of the second limiting block (321) are the same as those of the first limiting block (311). The second pressure roller (322) is rotatably set on the side of the second limiting block (321) close to the conductive cloth. A second support roller (323) that cooperates with the second pressure roller (322) is rotatably set on the second limiting frame (32). The second support roller (323) is set directly below the second pressure roller (322).

6. A die-cutting device for a single-layer conductive cloth according to claim 5, characterized in that: The second limiting frame (32) is slidably provided with a second pressure plate (324), and the second limiting block (321) is provided with a second elastic element (325). The other end of the second elastic element (325) is connected to the second pressure plate (324). The sub-limiting plate (34) is threadedly connected with a sub-stud (341). The bottom of the sub-limiting plate (34) is provided with a sliding plate (342). The sub-stud (341) is fixedly and rotatably mounted on the sliding plate (342). The sliding plate (342) is located above the second pressure plate (324).

7. A die-cutting device for a single-layer conductive cloth according to claim 2, characterized in that: The lower pressure block (51) is located inside the die-cutting blade (231). A fifth elastic element (52) is provided on the lower pressure block (51). The other end of the fifth elastic element (52) is connected to the die-cutting plate (23). The unfolding plate (53) is symmetrically arranged on both sides of the die-cutting plate (23) near the main limiting plate (33) and the secondary limiting plate (34). Sliding columns (531) are provided on both sides of the unfolding plate (53). A sliding column (531) is provided on the inner side of the mounting plate (221) to cooperate with the sliding column (531). The groove (532) and slide (532) are inclined. A guide plate (54) is slidably provided on the inner side of the mounting plate (221). The top of the unfolding plate (53) contacts and slides with the bottom of the guide plate (54). A sixth elastic element (541) is provided on the side of the guide plate (54) away from the unfolding plate (53). The other end of the sixth elastic element (541) is connected to the mounting plate (221). The bottom end face of the lower pressure block (51) and the unfolding plate (53) are both made of rubber.

8. A die-cutting device for a single-layer conductive cloth according to claim 1, characterized in that: The upper surface of the lower template (21) is provided with multiple sets of adsorption holes (211), which are connected to an external negative pressure source.

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