An automatic leveling and collecting device for ultra-thin sheet die cutting

Abstract

The application discloses an automatic leveling and collecting device for die cutting of ultrathin sheet material, which comprises a rack, a die cutting device, a leveling mechanism, a stacking mechanism and a packing mechanism. The die cutting device cuts the belt material into single dies; the leveling mechanism receives the dies and levels them before output; the stacking mechanism receives the leveled dies, stacks a predetermined number of the dies and then outputs; and the packing mechanism receives the stacked dies and packs them before output. The application realizes the integrated operation of online leveling, automatic quantitative stacking and direct packing of the ultrathin sheet material after die cutting through the sequentially integrated leveling, stacking and packing procedures, effectively solves the problems of easy curling, irregular stacking and low packing efficiency of the ultrathin sheet material after die cutting, and has the advantages of high automation degree, good stacking quality and close process connection, and is suitable for the post-processing of the ultrathin sheet material such as film, foil and insulating sheet.

Description

Technical Field

[0001] This invention relates to the field of die-cutting and material collection technology, specifically to an automatic leveling and material collection device for die-cutting ultra-thin sheets. Background Technology

[0002] In the die-cutting process of ultra-thin sheets (such as plastic films, metal foils, insulating sheets, graphite sheets, optical films, etc. with a thickness of 0.01mm to 0.5mm), after being die-cut into individual pre-defined shapes by roller die-cutting machines or flatbed die-cutting machines, they usually need to be collected, stacked, and packaged.

[0003] In existing technologies, the following technical problems are commonly found in the material collection devices after die-cutting of ultra-thin sheets: First, die-cut sheets are prone to deformation and curling, affecting stacking neatness. During the die-cutting process, the shear stress generated by the cutter on the sheet edges and the release of residual stress within the material can cause the die-cut edges to lift or the entire sheet to curl. This is especially true for ultra-thin sheets with a thickness of less than 0.1mm, which have extremely low rigidity. If they are not leveled promptly after die-cutting, the curling phenomenon is particularly severe. Traditional receiving devices simply use conveyor belts or slides to feed the die-cut sheets into the material box, lacking effective leveling methods. This results in uneven sheet edges during subsequent stacking, and even problems such as jamming and tilted stacking.

[0004] Secondly, the stacking and packaging processes are separated, resulting in low automation. In existing equipment, die-cut sheets are often first collected into stacks manually or by semi-automatic devices, and then transferred to separate packaging equipment for sealing. This separate operation not only occupies additional manpower and space, but also makes the sheets prone to scattering or developing new creases during the transfer process due to handling and shaking, seriously affecting the quality of the finished product. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide an automatic leveling and collecting device for die-cutting ultra-thin sheets, which can perform online leveling, automatic quantitative stacking and direct packaging of die-cut ultra-thin sheets.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic leveling and collecting device for die-cutting ultra-thin sheets, comprising a frame and a die-cutting device mounted on the frame, the die-cutting device being used to die-cut the strip material into individual die sheets of a predetermined length, characterized in that it further comprises: A leveling mechanism, mounted on the frame, is used to receive the die sheet conveyed from the die-cutting device and level the die sheet before outputting it. A stacking mechanism, located at the output end of the leveling mechanism, is used to receive the leveled mold pieces and stack a predetermined number of mold pieces together before outputting them; and The packaging mechanism is located at the discharge end of the stacking mechanism and is used to receive the stacked mold pieces and package them for output.

[0007] Furthermore, the leveling mechanism includes a front leveling component for leveling the front side of the die sheet. The front leveling component includes a first receiving plate, a first pressure roller, and a first rotary power source. The first receiving plate extends along the conveying direction of the die-cutting device and gradually tilts downward. The first pressure roller is laterally and rotatably disposed above the first receiving plate, and the axial direction of the first pressure roller is perpendicular to the conveying direction of the first receiving plate. A gap for the die sheet to pass through is formed between the lower edge of the first pressure roller and the first receiving plate. The first rotary power source is drively connected to the first pressure roller and is used to drive the first pressure roller to rotate and roll and level the die sheet on the first receiving plate.

[0008] Furthermore, the leveling mechanism also includes a 180° flipping mechanism and a reverse leveling component; the 180° flipping mechanism is used to receive the mold piece output from the discharge end of the first receiving plate, and flip the mold piece 180° before outputting it to the reverse leveling component; the reverse leveling component is used to level the reverse side of the flipped mold piece.

[0009] Furthermore, the 180° flipping mechanism includes a bracket and a flipping baffle; the flipping baffle is disposed in front of the discharge end of the first receiving plate through the bracket, and a flipping channel for the mold piece to pass through is formed between the flipping baffle and the discharge end of the first receiving plate; after the mold piece is output from the discharge end of the first receiving plate, it is flipped 180° by the flipping baffle and falls onto the reverse leveling assembly during the process of passing through the flipping channel.

[0010] Furthermore, the flip-up baffle is an arc-shaped plate, and the opening of the flip-up baffle faces the first receiving plate.

[0011] Furthermore, the reverse flattening assembly includes a second receiving plate, a second pressure roller, and a second rotary power source; the second receiving plate extends along the conveying direction of the die-cutting device and gradually tilts downward; the second pressure roller is laterally and rotatably disposed above the second receiving plate, and the axial direction of the second pressure roller is perpendicular to the conveying direction of the second receiving plate; a gap for the die sheet to pass through is formed between the lower edge of the second pressure roller and the second receiving plate; the second rotary power source is drively connected to the second pressure roller and is used to drive the second pressure roller to rotate, thereby rolling and flattening the die sheet on the second receiving plate.

[0012] Furthermore, the stacking mechanism includes a receiving plate, a clamping member, and a first linear motion drive source; the receiving plate is horizontally arranged and capable of reciprocating in the horizontal direction, and the first linear motion drive source is connected to the receiving plate for driving the receiving plate to reciprocate horizontally; the clamping member is arranged on the receiving plate, and when the receiving plate moves horizontally to directly below the second receiving plate, the clamping member is used to clamp the end of the mold piece output from the discharge end of the second receiving plate, pull the mold piece away from the second receiving plate and place it on the receiving plate, and then release the mold piece.

[0013] Furthermore, the clamping component includes a lower fixed clamping plate, an upper movable clamping plate, an elastic element, a permanent magnetic element, an electromagnet, a first trigger block, and a second trigger block; the lower fixed clamping plate is fixed to the receiving plate and located on the side away from the second receiving plate, and the permanent magnetic element is embedded in the upper movable clamping plate; the upper movable clamping plate is located directly above the lower fixed clamping plate and is parallel to the lower fixed clamping plate, the upper movable clamping plate can move up and down, and the elastic element is supported between the lower fixed clamping plate and the upper movable clamping plate; The electromagnet is embedded in the lower fixed clamping plate. When the electromagnet is energized, it generates a magnetism opposite to that of the permanent magnetic component. The switch of the electromagnet is a pressure-triggered switch and is located on the lower fixed clamping plate. The first trigger block is fixed to the discharge end of the second receiving plate. When the lower fixed clamping plate moves to the second receiving plate to a predetermined position, the switch of the electromagnet abuts against the first trigger block, energizing the electromagnet. The magnetic force generated between the electromagnet and the permanent magnetic component overcomes the elastic force of the elastic component, thereby clamping the mold piece between the upper movable clamping plate and the lower fixed clamping plate. The second trigger block is fixed on the frame. When the lower fixed clamping plate moves backward to a predetermined position, the switch of the electromagnet contacts the second trigger block, de-energizing the electromagnet. The upper movable clamping plate resets and releases the mold piece under the elastic force of the elastic component.

[0014] Furthermore, the packaging mechanism includes a conveyor belt, receiving boxes, a baffle, and a second linear motion drive source; the receiving plate has a material leakage hole, the size of which is larger than the size of the mold piece; the baffle is slidably disposed below the material leakage hole and can move laterally against the lower surface of the receiving plate; the second linear motion drive source is connected to the baffle for intermittently driving the baffle to move laterally, so that the material leakage hole is in an open or closed state; the conveyor belt is disposed below the receiving plate; there are multiple receiving boxes, which are arranged sequentially along the conveying direction of the conveyor belt and fixed on the conveyor belt for receiving the stacked mold pieces that fall from the material leakage hole.

[0015] Furthermore, the die-cutting device is a roller die-cutting machine or a flat die-cutting machine, used to die-cut ultra-thin sheets into pre-defined shapes.

[0016] The beneficial effects of this invention are: The above-mentioned automatic leveling and collecting device for die-cutting ultra-thin sheets has at least the following advantages: 1. This invention integrates a leveling mechanism, a stacking mechanism, and a packaging mechanism sequentially on a frame, combining three originally separate processes into a continuous automated workflow. The single die-cut pieces output by the die-cutting device are sequentially leveled, stacked, and packaged to directly form finished packages ready for warehousing or transport. The entire process requires no manual intervention, significantly shortening the production cycle and reducing labor intensity, making it particularly suitable for high-volume continuous production scenarios.

[0017] 2. The leveling mechanism is positioned before the stacking mechanism to ensure that each sheet is physically corrected to a flat and smooth state before entering the stacking station. Compared to traditional methods that directly stack curled sheets and then flatten them, this invention eliminates the impact of sheet curling on stacking neatness from the source. Flat sheets can naturally align during stacking, with layers adhering tightly together, avoiding common defects such as edge lifting, tilting, or jamming.

[0018] 3. After the stacking mechanism completes the stacking according to the preset quantity (such as 50 or 100 sheets per stack), the packaging mechanism directly receives the stack of sheets and seals them, without the need for manual or robotic transfer. This design completely eliminates problems such as shaking, creases, scattering, or electrostatic adsorption that may occur during the transfer of sheets, and is especially suitable for ultra-thin precision sheets such as optical films and graphite heat sinks that have extremely high requirements for surface quality.

[0019] 4. The leveling mechanism, stacking mechanism, and packaging mechanism are arranged sequentially along the conveying direction on the frame. Each module is relatively independent yet can work collaboratively. This device can directly connect to the output end of existing die-cutting equipment without requiring large-scale modifications to the original die-cutting machine. Furthermore, by adjusting the preset quantity of the stacking mechanism and the parameters of the packaging mechanism, it can flexibly adapt to the needs of receiving ultra-thin sheets of different specifications and materials. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of an automatic leveling and receiving device for die-cutting ultra-thin sheets according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the interior of the outer shell of the automatic leveling and collecting device for die-cutting ultra-thin sheets. Figure 3 for Figure 1 A schematic diagram at point A in the middle; Figure 4 for Figure 1 A schematic diagram at point B in the middle; Figure 5 for Figure 1 A cross-sectional view of the clamping component in the automatic leveling and receiving device for die-cutting ultra-thin sheets shown. Figure label: 100. Frame; 200. Die-cutting device; 300. Leveling mechanism; 310. Front leveling assembly; 311. First receiving plate; 312. First pressure roller; 313. First rotational power source; 320. 180° flipping mechanism; 321. Support; 322. Flipping baffle; 330. Back leveling assembly; 331. Second receiving plate; 332. Second pressure roller; 333. Second rotational power source; 400. Stacking Mechanism; 410, receiving plate; 420, clamping component; 421, lower fixed clamping plate; 422, upper movable clamping plate; 423, elastic component; 424, permanent magnetic component; 425, electromagnet; 426, first trigger block; 427, second trigger block; 430, first linear motion drive source; 500, packaging mechanism; 510, conveyor belt; 520, receiving box; 530, baffle; 540, second linear motion drive source. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Please see Figures 1 to 5 The present invention provides an automatic leveling and receiving device for die-cutting ultra-thin sheets, including a frame 100, a die-cutting device 200, a leveling mechanism 300, a stacking mechanism 400 and a packaging mechanism 500.

[0024] Specifically, the die-cutting device 200 is mounted on the frame 100. The die-cutting device 200 is used to die-cut strips (such as ultra-thin plastic sheets, metal foil sheets, paper sheets, etc.) into individual die pieces of predetermined length according to preset dimensions and shapes. In this embodiment, the die-cutting device 200 is a roller die-cutting machine or a flatbed die-cutting machine commonly used in the prior art. Roller die-cutting machines are suitable for continuous, high-speed die-cutting; flatbed die-cutting machines are suitable for large-size or complex-shaped die-cutting. This die-cutting device 200 is specifically designed for die-cutting ultra-thin sheets (such as films, metal foils, insulating sheets, graphite sheets, optical films, etc. with a thickness range of 0.01mm to 0.5mm) into individual die pieces of predetermined geometric shapes.

[0025] To address the issues of easy curling, uneven stacking, and low packaging efficiency of die-cut sheets, this device also integrates a leveling mechanism 300, a stacking mechanism 400, and a packaging mechanism 500 on the frame 100.

[0026] A leveling mechanism 300 is mounted on the frame 100 and located at the output end of the die-cutting device 200. It receives the die sheets conveyed from the die-cutting device 200 and physically corrects the stress deformation caused by die-cutting, leveling any curled or warped die sheets before outputting them in a relaxed state. A stacking mechanism 400 is precisely positioned at the output end of the leveling mechanism 300. It receives the leveled die sheets and neatly stacks them together according to a preset quantity (e.g., 50 sheets per stack, 100 sheets per stack) before outputting them. A packaging mechanism 500 is located at the discharge end of the stacking mechanism 400. It receives the stacked die sheet groups and automatically packages them (e.g., plastic sealing, wrapping, or placing them in a box) before outputting the finished product.

[0027] This device automatically transforms scattered and curled individual die-cut sheets into flat, stacked finished packages that can be immediately stored or transported through a linear process of "leveling, stacking, and packaging." The entire process requires no manual intervention, significantly improving production efficiency and avoiding stacking misalignment or material jamming caused by sheet curling. The three modules of leveling, stacking, and packaging are sequentially connected in space and action, forming a complete and automated material receiving production line.

[0028] In this embodiment, the leveling mechanism 300 includes a front leveling component 310. Specifically, the front leveling component 310 includes a first receiving plate 311, a first pressure roller 312, and a first rotary power source 313. The first receiving plate 311 extends along the conveying direction of the die-cutting device 200 and gradually tilts downwards. This tilting design allows the die sheet to slide forward naturally with the aid of gravity after leaving the die-cutting device 200, reducing additional thrust. The first pressure roller 312 is laterally and rotatably disposed above the first receiving plate 311, with its axis perpendicular to the conveying direction of the first receiving plate 311. An extremely narrow and uniform gap is formed between the lower edge of the first pressure roller 312 and the upper surface of the first receiving plate 311, the gap being slightly less than or equal to the thickness of the die sheet. The first rotary power source 313 (such as a geared motor) is drively connected to the first pressure roller 312 and is used to drive the first pressure roller 312 to rotate continuously.

[0029] In use, after the die sheet is output from the die-cutting device 200, it first falls onto the inclined first receiving plate 311 and moves forward under the force of gravity and the thrust of the subsequent sheet. When its front end enters the gap between the first pressure roller 312 and the first receiving plate 311, the rotating first pressure roller 312 applies a forward frictional force and a downward pressure to the die sheet. This rolling action flattens the fiber stress or plastic deformation generated inside the die sheet due to die-cutting, making the front area of ​​the die sheet flat and smooth.

[0030] Considering that residual stress may still exist on the other side of the template after single-sided leveling, this leveling mechanism 300 also includes a 180° flipping mechanism 320 and a reverse leveling component 330.

[0031] A 180° flipping mechanism 320 is located at the output end of the front leveling assembly 310. It is used to receive the mold piece output from the discharge end of the first receiving plate 311 and flip the spatial orientation of the mold piece by 180° (i.e., upside down) during the conveying process. Then, the flipped mold piece is output to the reverse leveling assembly 330. The structure of the reverse leveling assembly 330 is similar to that of the front leveling assembly 310, but its target is the new upper surface of the mold piece after flipping (i.e., the original reverse side).

[0032] This method achieves symmetrical elimination of stress on both sides of the die sheet, and is especially suitable for ultra-thin sheets with asymmetrical stress from printing, coating or die-cutting on both sides.

[0033] Specifically, the 180° flipping mechanism 320 includes a bracket 321 and a flipping baffle 322. The flipping baffle 322 is fixedly installed in front of the discharge end of the first receiving plate 311 by the bracket 321, and the inner surface of the flipping baffle 322 maintains a specific distance from the discharge end of the first receiving plate 311, thereby forming a flipping channel for the mold to pass through.

[0034] Preferably, the flipping baffle 322 can be designed as an arc-shaped plate, with the opening of the arc-shaped plate facing the first receiving plate 311. When the mold piece is output at high speed from the discharge end of the first receiving plate 311, its front end first enters the flipping channel and impacts the inner wall of the arc-shaped flipping baffle 322. Due to the geometric guiding effect of the arc-shaped plate, the mold piece will not stop or wrinkle, but will smoothly change its direction of movement along the arc surface, changing from the original horizontal forward movement to a backward and upward or downward arc-shaped movement. This process is similar to a roller coaster track. After the mold piece slides 180° on the arc surface, its head and tail directions are reversed, and the upper and lower surfaces are completely inverted. Finally, under the action of gravity, it falls from the end of the arc surface onto the reverse leveling component 330 below.

[0035] In this embodiment, the reverse leveling assembly 330 includes a second receiving plate 331, a second pressure roller 332, and a second rotary power source 333. Its connection and arrangement are basically the same as those of the front leveling assembly 310: the second receiving plate 331 extends along the conveying direction and gradually tilts downward; the second pressure roller 332 is laterally and rotatably disposed above the second receiving plate 331, with its axis perpendicular to the conveying direction; a gap is formed between the lower edge of the second pressure roller 332 and the second receiving plate 331 for the mold to pass through; and the second rotary power source 333 drives the second pressure roller 332 to rotate.

[0036] After being flipped 180°, the mold piece lands on the second receiving plate 331 with its original reverse side facing up. The second pressure roller 332 rotates at the same linear speed as the first pressure roller 312, rolling the reverse side of the mold piece. By adjusting the gap between the second pressure roller 332 and the second receiving plate 331, as well as the rotational speed of the second rotary power source 333, the pressure and speed of the reverse side leveling can be independently controlled. The leveling parameters for the front and back sides can be set differently to adapt to the optimal leveling process requirements of mold pieces of different materials and thicknesses.

[0037] In this embodiment, the stacking mechanism 400 includes a receiving plate 410, a clamping member 420, and a first linear motion drive source 430. The receiving plate 410 is horizontally positioned and can reciprocate horizontally under external force (i.e., move back and forth). The first linear motion drive source 430 (such as a cylinder, linear module, or electric push rod) is connected to the receiving plate 410 for driving the receiving plate 410 to achieve precise reciprocating motion. The clamping member 420 is fixedly mounted on the receiving plate 410 and moves together with the receiving plate 410.

[0038] When the reverse leveling assembly 330 outputs a mold piece, the receiving plate 410 first moves horizontally under the drive of the first linear motion drive source 430 to directly below the second receiving plate 331. At this time, the front end of the mold piece output from the discharge end of the second receiving plate 331 is exactly located within the working area of ​​the clamping member 420. The clamping member 420 quickly moves to clamp the end of the mold piece. Subsequently, the first linear motion drive source 430 reverses its direction, causing the receiving plate 410 and the clamping member 420 to move backward, thereby completely pulling the mold piece out of the second receiving plate 331 and laying it flat on the upper surface of the receiving plate 410. The clamping member 420 then releases the mold piece, completing the stacking of one mold piece at a time. By repeating the above process, a predetermined number of mold pieces can be stacked one by one on the receiving plate 410.

[0039] The clamping component 420 includes a lower fixed clamping plate 421, an upper movable clamping plate 422, an elastic component 423, a permanent magnetic component 424, an electromagnet 425, a first trigger block 426, and a second trigger block 427.

[0040] The lower fixed clamping plate 421 is fixed on the receiving plate 410 and is located on the side away from the second receiving plate 331. The permanent magnetic element 424 is embedded in the upper movable clamping plate 422. The upper movable clamping plate 422 is located directly above the lower fixed clamping plate 421 and is parallel to the lower fixed clamping plate 421. The upper movable clamping plate 422 can move up and down. The elastic element 423 is supported between the lower fixed clamping plate 421 and the upper movable clamping plate 422. An electromagnet 425 is embedded in the lower fixed clamping plate 421. When energized, the electromagnet 425 generates a magnetism opposite to that of the permanent magnetic component 424. The switch of the electromagnet 425 is a pressure-triggered switch, which is mounted on the lower fixed clamping plate 421. A first trigger block 426 is fixed to the discharge end of the second receiving plate 331. When the lower fixed clamping plate 421 moves to the predetermined position towards the second receiving plate 331, the switch of the electromagnet 425 abuts against the first trigger block 426, energizing the electromagnet 425. The magnetic force generated between the electromagnet 425 and the permanent magnetic component 424 overcomes the elastic force of the elastic component 423, thereby clamping the mold piece between the upper movable clamping plate 422 and the lower fixed clamping plate 421. The second trigger block 427 is fixed on the frame 100. When the lower fixed clamping plate 421 moves backward to the predetermined position, the switch of the electromagnet 425 contacts the second trigger block 427, causing the electromagnet 425 to be de-energized. The upper movable clamping plate 422 resets and releases the mold piece under the elastic force of the elastic component 423.

[0041] Mechanism of action: Approach and Clamping: As the receiving plate 410 carrying the clamping member 420 moves towards the second receiving plate 331, the lower fixed clamping plate 421 gradually approaches the first trigger block 426. When it reaches the predetermined position (i.e., the front end of the mold piece has entered between the upper and lower clamping plates), the pressure switch on the lower fixed clamping plate 421 abuts against the first trigger block 426 and is triggered, and the electromagnet 425 is instantly energized. The electromagnet 425 generates a magnetism opposite to that of the permanent magnetic member 424, and the two attract each other. The generated magnetic force overcomes the elastic force of the elastic member 423, pulling the upper movable clamping plate 422 downward, thereby clamping the end of the mold piece together with the lower fixed clamping plate 421.

[0042] Traction and Release: The receiving plate 410 moves backward (away from the second receiving plate 331), and the clamping member 420 moves backward together with the mold piece. When the lower fixed clamping plate 421 moves to the position of the second trigger block 427, its pressure switch contacts the second trigger block 427, and the electromagnet 425 is instantly de-energized. After the magnetic force disappears, the elastic force of the elastic member 423 pushes the upper movable clamping plate 422 upward, the clamping member 420 opens, and the mold piece is released, and the mold piece falls flat on the receiving plate 410.

[0043] In this embodiment, the packaging mechanism 500 includes a conveyor belt 510, a receiving box 520, a baffle 530, and a second linear motion drive source 540. The receiving plate 410 has a material leakage hole with a size larger than the outer dimensions of a single mold sheet. The baffle 530 is slidably disposed below the material leakage hole and closely abuts the lower surface of the receiving plate 410, and can slide laterally to cover or open the material leakage hole. The second linear motion drive source 540 is drively connected to the baffle 530 and is used to intermittently drive the baffle 530 to move laterally. The conveyor belt 510 is horizontally positioned below the receiving plate 410. Multiple receiving boxes 520 are arranged sequentially along the conveying direction of the conveyor belt 510 and fixedly installed on the conveyor belt 510.

[0044] Stacking stage: During the process of stacking mechanism 400 placing mold pieces one by one onto receiving plate 410, baffle 530 always closes the material leakage hole to ensure that the mold pieces are stacked on the upper surface of receiving plate 410 and do not fall off.

[0045] Material unloading and packaging: When the number of mold pieces on the receiving plate 410 reaches the preset stacking quantity (e.g., 50 pieces), the second linear motion drive source 540 drives the baffle 530 to move laterally, causing the material discharge hole to open instantly. The entire stack of mold pieces falls neatly from the material discharge hole under the action of gravity, directly into a receiving box 520 directly below. Subsequently, the baffle 530 immediately resets and closes the material discharge hole, and the stacking of the next stack of mold pieces begins.

[0046] Conveying and discharging: The receiving box 520 containing the stack of mold pieces is conveyed forward by the conveyor belt 510 in a stepping manner, moving the empty receiving box 520 to below the discharge hole, while moving the receiving box 520 that has been filled with material to the discharge end for manual or robotic arm to pick up.

[0047] This packaging structure utilizes the receiving plate 410 itself as an integrated design of a stacking platform and a discharge gate. Through the intermittent movement of the baffle 530, it achieves a "stack and pack simultaneously" assembly line operation. The receiving box 520 moves cyclically with the conveyor belt 510, ensuring the continuity of material receiving and avoiding the scattering or damage that may be caused by secondary handling of stacked sheets.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An automatic leveling and collecting device for die-cutting ultra-thin sheets, comprising a frame and a die-cutting device mounted on the frame, the die-cutting device being used to die-cut a strip of material into individual die sheets of a predetermined length, characterized in that, Also includes: A leveling mechanism, mounted on the frame, is used to receive the die sheet conveyed from the die-cutting device and level the die sheet before outputting it. A stacking mechanism is provided at the output end of the leveling mechanism to receive the leveled mold pieces and stack a predetermined number of mold pieces together before outputting them. and The packaging mechanism is located at the discharge end of the stacking mechanism and is used to receive the stacked mold pieces and package them for output.

2. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 1, characterized in that, The leveling mechanism includes a front leveling component for leveling the front side of the die sheet. The front leveling component includes a first receiving plate, a first pressure roller, and a first rotary power source. The first receiving plate extends along the conveying direction of the die-cutting device and gradually tilts downward. The first pressure roller is laterally and rotatably disposed above the first receiving plate, and the axial direction of the first pressure roller is perpendicular to the conveying direction of the first receiving plate. A gap is formed between the lower edge of the first pressure roller and the first receiving plate for the die sheet to pass through. The first rotary power source is drivenly connected to the first pressure roller and is used to drive the first pressure roller to rotate and roll and level the die sheet on the first receiving plate.

3. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 2, characterized in that, The leveling mechanism further includes a 180° flipping mechanism and a reverse leveling component; the 180° flipping mechanism is used to receive the mold piece output from the discharge end of the first receiving plate, and flips the mold piece 180° before outputting it to the reverse leveling component; the reverse leveling component is used to level the reverse side of the flipped mold piece.

4. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 3, characterized in that, The 180° flipping mechanism includes a bracket and a flipping baffle; the flipping baffle is set in front of the discharge end of the first receiving plate through the bracket, and a flipping channel is formed between the flipping baffle and the discharge end of the first receiving plate for the mold piece to pass through; after the mold piece is output from the discharge end of the first receiving plate, it is flipped 180° by the flipping baffle and falls onto the reverse leveling component during the process of passing through the flipping channel.

5. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 4, characterized in that, The flip-up baffle is an arc-shaped plate, and the opening of the flip-up baffle faces the first receiving plate.

6. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 3, characterized in that, The reverse flattening assembly includes a second receiving plate, a second pressure roller, and a second rotary power source. The second receiving plate extends along the conveying direction of the die-cutting device and gradually tilts downward. The second pressure roller is laterally and rotatably disposed above the second receiving plate, and the axial direction of the second pressure roller is perpendicular to the conveying direction of the second receiving plate. A gap is formed between the lower edge of the second pressure roller and the second receiving plate for the die sheet to pass through. The second rotary power source is drivenly connected to the second pressure roller to drive the second pressure roller to rotate, thereby rolling and flattening the die sheet on the second receiving plate.

7. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 6, characterized in that, The stacking mechanism includes a receiving plate, a clamping member, and a first linear motion drive source. The receiving plate is horizontally positioned and capable of reciprocating in the horizontal direction. The first linear motion drive source is connected to the receiving plate and is used to drive the receiving plate to reciprocate horizontally. The clamping member is positioned on the receiving plate. When the receiving plate moves horizontally to directly below the second receiving plate, the clamping member clamps the end of the mold piece output from the discharge end of the second receiving plate, pulls the mold piece away from the second receiving plate and places it on the receiving plate, and then releases the mold piece.

8. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 7, characterized in that, The clamping component includes a lower fixed clamping plate, an upper movable clamping plate, an elastic element, a permanent magnetic element, an electromagnet, a first trigger block, and a second trigger block. The lower fixed clamping plate is fixed to the receiving plate and located on the side away from the second receiving plate. The permanent magnetic element is embedded in the upper movable clamping plate. The upper movable clamping plate is located directly above the lower fixed clamping plate and is parallel to the lower fixed clamping plate. The upper movable clamping plate can move up and down, and the elastic element is supported between the lower fixed clamping plate and the upper movable clamping plate. The electromagnet is embedded in the lower fixed clamping plate. When the electromagnet is energized, it generates a magnetism opposite to that of the permanent magnetic component. The switch of the electromagnet is a pressure-triggered switch and is located on the lower fixed clamping plate. The first trigger block is fixed to the discharge end of the second receiving plate. When the lower fixed clamping plate moves to the second receiving plate to a predetermined position, the switch of the electromagnet abuts against the first trigger block, energizing the electromagnet. The magnetic force generated between the electromagnet and the permanent magnetic component overcomes the elastic force of the elastic component, thereby clamping the mold piece between the upper movable clamping plate and the lower fixed clamping plate. The second trigger block is fixed on the frame. When the lower fixed clamping plate moves backward to a predetermined position, the switch of the electromagnet contacts the second trigger block, de-energizing the electromagnet. The upper movable clamping plate resets and releases the mold piece under the elastic force of the elastic component.

9. The automatic leveling and collecting device for ultra-thin sheet die-cutting according to claim 8, characterized in that, The packaging mechanism includes a conveyor belt, receiving boxes, a baffle, and a second linear motion drive source. The receiving plate has a material leakage hole, the size of which is larger than the size of the mold piece. The baffle is slidably positioned below the material leakage hole and can move laterally against the lower surface of the receiving plate. The second linear motion drive source is connected to the baffle and is used to intermittently drive the baffle to move laterally, so that the material leakage hole is in an open or closed state. The conveyor belt is positioned below the receiving plate. Multiple receiving boxes are arranged sequentially along the conveyor belt's conveying direction and fixed to the conveyor belt, used to receive the stacked mold pieces falling from the material leakage hole.

10. The automatic leveling and collecting device for die-cutting ultra-thin sheets according to any one of claims 1 to 9, characterized in that, The die-cutting device is a roller die-cutting machine or a flat die-cutting machine, used to die-cut ultra-thin sheets into pre-defined shapes.

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