High speed die cutter without indentation die cutting

Abstract

The application discloses a high-speed die-cutting machine without pressure marks, and relates to the technical field of die-cutting machines.The high-speed die-cuting machine without pressure marks comprises a rack, a bearing mechanism arranged on the rack and a first driving assembly for driving the bearing mechanism to move, a die-cutting mechanism arranged on the rack through a support frame and a second driving assembly for driving the die-cuting mechanism to move, a buffer assembly arranged on the support frame, a support assembly arranged on the rack, a first displacement detection assembly arranged on the die-cutting mechanism, a second displacement detection assembly arranged on the rack, and a controller electrically connected with each assembly.The bearing mechanism is suitable for products of different specifications through an adjustable baffle, the first driving assembly adopts screw transmission and cooperates with slide rails to guide and ensure stable movement, the die-cuting mechanism adopts a replaceable upper die plate to improve flexibility, the buffer assembly cooperates with the support assembly to avoid the generation of pressure marks, and the detection assembly and the controller form a closed-loop control to realize accurate positioning and cooperative operation.The application solves the problems of obvious pressure marks and low positioning accuracy, and has the beneficial effects of no pressure marks, high precision and high-speed stable operation.

Description

Technical Field

[0001] This application relates to the field of die-cutting machine technology, and in particular to a high-speed die-cutting machine with non-marking die-cutting. Background Technology

[0002] Die-cutting machines are devices that use die-cutting blades, steel blades, metal molds, steel wires, etc., to cut raw materials into specific shapes. They are widely used in the processing and production of various flexible materials. With the rapid development of the packaging industry and the trend of miniaturization and precision in electronic products, the market has placed increasingly higher demands on the processing accuracy, surface quality, and production efficiency of die-cut products.

[0003] Existing die-cutting machines generally have the following problems during high-speed die-cutting: First, the impact force is large when the die-cutting mechanism comes into contact with the carrier mechanism, which can easily form indentations on the product surface. Especially for thin materials or materials with easily damaged surfaces, indentation defects can directly lead to product scrap and reduce the production qualification rate. Second, the positioning accuracy of the carrier mechanism is insufficient during the forward and backward movement. It is prone to shaking or displacement during high-speed operation, resulting in die-cutting position deviation and affecting the product dimensional accuracy. Utility Model Content

[0004] This invention addresses the aforementioned problems in the existing technology by providing a high-speed die-cutting machine with no indentation.

[0005] The objective of this utility model is mainly achieved through the following solution: A high-speed die-cutting machine with non-marking die-cutting includes a frame, the upper surface of which is provided with a support mechanism that can move back and forth, a first drive assembly on the frame, the support mechanism being connected to the first drive assembly, and the first drive assembly being able to drive the support mechanism to move back and forth; a die-cutting mechanism that can move up and down is provided on the frame via a support frame, and a second drive assembly is mounted on the support frame, the second drive assembly being able to drive the die-cutting mechanism to move up and down; A buffer assembly is provided on the support frame below the die-cutting mechanism, and a support assembly for supporting the load-bearing mechanism is provided on the frame below the die-cutting mechanism. The die-cutting mechanism is equipped with a first displacement detection component for detecting the position of the die-cutting mechanism, and the frame is provided with a second displacement detection component for detecting the position of the bearing mechanism. It also includes a controller, which is electrically connected to the first drive component, the second drive component, the first displacement detection component, and the second displacement detection component.

[0006] Preferably, the bearing mechanism includes a support plate, a first baffle is installed on the rear side of the upper surface of the support plate, and second baffles are symmetrically arranged on the left and right sides of the upper surface of the support plate. Limiting grooves are formed on the lower part of the opposite side of the two second baffles. The two limiting grooves are used to place the product to be processed, and the spacing between the two second baffles can be adjusted.

[0007] Preferably, the first drive assembly includes a first drive motor, the output end of the first drive motor is fixedly connected to a threaded screw, a threaded sleeve is fixedly connected to the bottom center of the support plate, the threaded screw passes through the front and rear side walls of the threaded sleeve, and the threaded sleeve and the threaded screw are threadedly connected, and the front end of the threaded screw is rotatably connected to a bearing seat on the frame. The upper surface of the frame is provided with longitudinal limiting slide rails on both the left and right sides, and the lower surface of the support plate is provided with longitudinal limiting slide plates on both the left and right sides. The lower surface of the limiting slide plate is provided with a limiting groove that matches the upper part of the limiting slide rail along its length direction. The limiting slide plate is slidably connected to the limiting slide rail through the limiting groove.

[0008] Preferably, the second displacement detection component is a photoelectric switch, which is mounted on the frame below the die-cutting mechanism. A baffle plate that works in conjunction with the photoelectric switch is installed on the lower surface of the support plate. When the photoelectric switch can detect the baffle plate, the bearing mechanism is located directly below the die-cutting mechanism.

[0009] Preferably, the support frame includes a top plate and guide rods installed at the four top corners, with the bottom of the guide rods fixedly connected to the upper surface of the frame; The die-cutting mechanism includes a movable plate, on the lower surface of which two longitudinally arranged third baffles are installed. Each of the two third baffles has an installation groove on the upper part of its opposite side. A replaceable upper template is installed between the two installation grooves. A die-cutting blade is installed on the lower surface of the upper template. The second drive assembly is mounted on the top plate, and the telescopic end of the second drive assembly passes through the top plate and is fixedly connected to the upper surface of the movable plate.

[0010] Preferably, the buffer assembly includes a buffer spring, which is sleeved on the outer wall of the guide rod and located between the lower surface of the moving plate and the upper surface of the frame.

[0011] Preferably, the first displacement detection component uses a displacement sensor with its detection head facing the upper surface of the frame.

[0012] Preferably, the support assembly includes two first support blocks symmetrically mounted on the upper surface of the frame, and a second support block mounted on the upper surface of the frame is provided between the two first support blocks. The upper surfaces of the first support blocks and the second support block are flush with the lower surface of the bearing mechanism.

[0013] In summary, compared with the prior art, the present invention has the following beneficial technical effects: (1) By setting a buffer component on the support frame, this utility model can effectively buffer the impact force when the die-cutting mechanism goes down, and reduce the pressure when the die-cutting knife comes into contact with the product; at the same time, in conjunction with the support component on the frame, it provides stable support for the bearing mechanism, avoids deformation of the bearing mechanism during the die-cutting process, and the double protection effectively avoids the product surface from being indented, significantly improving the product surface quality and pass rate. (2) In this utility model, the first drive component adopts the transmission method of threaded screw and threaded sleeve, and is coordinated with the guide structure of limit slide rail and limit slide plate to ensure the straightness and stability of the forward and backward movement of the bearing mechanism; the second displacement detection component realizes the precise positioning of the die-cutting position of the bearing mechanism through the cooperation of photoelectric switch and baffle; the first displacement detection component uses displacement sensor to monitor the displacement of the die-cutting mechanism in real time to realize the precise control of the die-cutting depth; the components work together to greatly improve the overall positioning accuracy of the equipment; (3) The spacing between the second baffles of the bearing mechanism in this utility model is adjustable, which can adapt to products with different width specifications; the upper template of the die-cutting mechanism adopts a replaceable design, and with the first displacement detection component, it can accurately control the die-cutting depth, meet the processing tasks of different materials and different die-cutting requirements, and expand the scope of application of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0015] Reference numerals: 1-Frame; 2-Second drive assembly; 3-First displacement detection assembly; 4-Support plate; 5-First baffle; 6-Second baffle; 7-Limiting groove; 8-First drive motor; 9-Threaded screw; 10-Threaded sleeve; 11-Bearing seat; 12-Limiting slide rail; 13-Limiting slide plate; 14-Limiting slide groove; 15-Photoelectric switch; 16-Baffle plate; 17-Top plate; 18-Guide rod; 19-Moving plate; 20-Third baffle; 21-Mounting groove; 22-Upper template; 23-Die-cutting blade; 24-Buffer spring; 25-First support block; 26-Second support block. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0017] like Figure 1-4 As shown, this utility model discloses a technical solution: a high-speed die-cutting machine with no indentation, including a frame 1. The upper surface of the frame 1 is provided with a support mechanism that can move back and forth for placing and conveying the product to be processed. The frame 1 is provided with a first drive component, and the support mechanism is connected to the first drive component. The first drive component can drive the support mechanism to move back and forth stably along the upper surface of the frame 1 to achieve accurate conveying of the product to be processed.

[0018] The frame 1 is equipped with a die-cutting mechanism that can move up and down via a support frame, which is used to perform die-cutting on the product to be processed; a second drive component 2 is installed on the support frame, which can drive the die-cutting mechanism to move up and down along the support frame, thereby achieving precise control of the die-cutting action.

[0019] To prevent excessive impact force from causing indentations on the product when the die-cutting mechanism descends, a buffer component is provided on the support frame below the die-cutting mechanism to buffer the impact force when the die-cutting mechanism descends; a support component is provided on the frame 1 below the die-cutting mechanism to support the carrying mechanism, thereby improving the stability of the carrying mechanism during the die-cutting process and further preventing indentations.

[0020] To achieve precise positioning and coordinated control of the various components of the equipment, a first displacement detection component 3 is installed on the die-cutting mechanism to detect the position of the die-cutting mechanism and monitor the vertical displacement of the die-cutting mechanism in real time; a second displacement detection component is provided on the frame 1 to detect the position of the bearing mechanism and monitor the front and rear positions of the bearing mechanism in real time.

[0021] The device also includes a controller, which is electrically connected to the first drive component, the second drive component 2, the first displacement detection component 3, and the second displacement detection component. The controller receives detection signals from each detection component and controls the operation of the first drive component and the second drive component 2 according to a preset program, so as to realize the coordinated work of each component of the device.

[0022] Specifically, the supporting mechanism includes a support plate 4, which is made of aluminum alloy, lightweight and high-strength, serving as the foundation for the product to be processed. A first baffle 5 is bolted to the rear side of the upper surface of the support plate 4 to limit the rear end of the product to be processed. Two symmetrical second baffles 6 are bolted to the left and right sides of the upper surface of the support plate 4 to limit the left and right sides of the product to be processed. Limiting grooves 7 are formed on the lower part of the opposite side of the two second baffles 6, and the space between the two limiting grooves 7 is used to place the product to be processed, improving the stability of the product placement. The spacing between the two second baffles 6 can be adjusted to accommodate products of different widths and specifications, expanding the applicability of the equipment. Specifically, the support plate 4 has horizontally arranged adjustment elongated holes with scale lines on the edge. The adjustment elongated holes are detachably connected to the fixing holes of the second baffles 6 by bolts.

[0023] Specifically, the first drive assembly includes a first drive motor 8, which serves as the power source for the movement of the load-bearing mechanism. The first drive motor 8 is a servo motor, which is fixed to the rear end of the frame 1 via a motor mount. The output end of the first drive motor 8 is fixedly connected to a threaded screw 9 via a coupling. A threaded sleeve 10 is fixedly connected to the bottom center of the support plate 4 via bolts. The threaded screw 9 passes through the front and rear side walls of the threaded sleeve 10, and the threaded sleeve 10 and the threaded screw 9 are threadedly connected. The forward and backward movement of the load-bearing mechanism is achieved through threaded transmission, resulting in high transmission accuracy. The front end of the threaded screw 9 is rotatably connected to a bearing seat 11 on the frame 1, which improves the stability of the threaded screw 9 during operation.

[0024] To prevent the load-bearing mechanism from shifting during movement, the upper surface of the frame 1 is longitudinally fixed with limit rails 12 on both the left and right sides by bolts. The limit rails 12 have a T-shaped cross-section. The lower surface of the support plate 4 is longitudinally installed with limit slide plates 13 on both the left and right sides by bolts. The lower surface of the limit slide plates 13 has a T-shaped limit groove 14 that matches the upper part of the limit rails 12 along its length. The limit slide plates 13 are slidably connected to the limit rails 12 through the limit grooves 14, providing guidance for the movement of the load-bearing mechanism and ensuring its stable movement along a straight line.

[0025] Specifically, the second displacement detection component uses a photoelectric switch 15, which has high detection accuracy and fast response speed. Specifically, a diffuse reflection type photoelectric switch can be used with a response time ≤1ms. The photoelectric switch 15 is mounted on the frame 1 via a bracket and is located below the die-cutting mechanism. A baffle 16, which works with the photoelectric switch 15, is bolted to the corresponding position on the lower surface of the support plate 4. The baffle 16 is made of stainless steel. When the photoelectric switch 15 can detect the baffle 16, the bearing mechanism is located directly below the die-cutting mechanism. After receiving the signal from the photoelectric switch 15, the controller controls the first drive component to stop running, thereby achieving precise positioning of the bearing mechanism.

[0026] Specifically, the support frame includes a top plate 17 and guide rods 18 installed at the four corners of the top. The top of the guide rods 18 is bolted to the top plate 17, and the bottom of the guide rods 18 is fixedly connected to the upper surface of the frame 1 by bolts, forming a stable support structure to guide the up and down movement of the die-cutting mechanism.

[0027] The die-cutting mechanism includes a movable plate 19, which serves as the mounting base for the die-cutting assembly. Two longitudinally arranged third baffles 20 are bolted to the lower surface of the movable plate 19. Each of the two third baffles 20 has an mounting groove 21 on the upper part of its opposite side. A replaceable upper template 22 is bolted between the two mounting grooves 21, which facilitates the replacement of the upper template 22 according to different die-cutting requirements and improves the flexibility of the equipment. A die-cutting blade 23 is mounted on the lower surface of the upper template 22 to perform specific die-cutting actions.

[0028] The second drive assembly 2 is fixedly installed on the top plate 17 by bolts. Its telescopic end passes through the top plate 17 and is connected to the center of the upper surface of the moving plate 19 by bolts, providing power for the up and down movement of the die-cutting mechanism. Preferably, the second drive assembly 2 adopts a servo electric cylinder, which has the advantages of precise and controllable stroke and stable operation.

[0029] Specifically, the buffer assembly includes a buffer spring 24, which is sleeved on the outer wall of the guide rod 18 and located between the lower surface of the moving plate 19 and the upper surface of the frame 1. When the die-cutting mechanism moves downward, the moving plate 19 compresses the buffer spring 24. The elastic force generated by the buffer spring 24 can effectively offset part of the impact force and prevent the die-cutting blade 23 from having excessive pressure and causing indentations when it comes into contact with the product.

[0030] Specifically, the first displacement detection component 3 uses a displacement sensor, specifically a laser displacement sensor, with a detection accuracy of 0.01mm. Its detection head faces the upper surface of the frame 1, which can accurately detect the downward distance of the moving plate 19, thereby controlling the cutting depth of the die-cutting blade 23 to adapt to the die-cutting requirements of materials of different thicknesses, while avoiding excessive cutting that could cause indentations or material damage.

[0031] Specifically, the support assembly includes two first support blocks 25 symmetrically mounted on the upper surface of the frame 1, and a second support block 26 mounted on the upper surface of the frame 1 between the two first support blocks 25. Both the first support blocks 25 and the second support block 26 are made of rubber and are fixed to the upper surface of the frame 1 by bolts. The upper surface is flush with the lower surface of the support plate 4. When the support plate 4 moves to the die-cutting position, the support blocks are in close contact with the support plate 4, providing stable support for the support plate 4 and preventing the support plate 4 from deforming due to force during the die-cutting process, which could cause indentations on the product.

[0032] The controller is a PLC controller, installed in the control box on the side of the frame 1. It is electrically connected to the first drive motor 8, servo cylinder, laser displacement sensor and photoelectric switch 15 through wires, and is equipped with a touch screen for parameter setting and operation status monitoring.

[0033] The working process for this application is as follows: 1. Parameter settings: Input parameters such as the width of the product to be processed, die-cutting size, die-cutting speed and die-cutting depth to the controller via the touch screen. The controller presets the running speed and stroke of the first drive motor 8, and the extension and retraction amount and speed of the servo electric cylinder according to the parameters.

[0034] 2. Product loading: Based on the width of the product to be processed, loosen the locking bolts of the second baffle 6, adjust the distance between the two second baffles 6 to match the width of the product, and then place the product into the limiting grooves 7 of the two second baffles 6, with the rear end fitting against the first baffle 5 to complete the loading.

[0035] 3. Positioning of the bearing mechanism: When the equipment is started, the controller controls the first drive motor 8 to start, which drives the threaded screw 9 to rotate. The threaded sleeve 10 drives the support plate 4 to move backward along the limit slide rail 12. When the support plate 4 moves to the die-cutting position, the baffle 16 blocks the photoelectric switch 15. The photoelectric switch 15 sends a signal to the controller, and the controller controls the first drive motor 8 to stop running. The bearing mechanism completes the positioning.

[0036] 4. Die-cutting process: The controller starts the servo cylinder, which drives the moving plate 19 to move downward along the guide rod 18, and the die-cutting blade 23 gradually approaches the product. During the movement, the first displacement detection component 3 detects the displacement of the moving plate 19 in real time and transmits the data to the controller. When the die-cutting blade 23 contacts the product and reaches the preset die-cutting depth, the controller controls the servo cylinder to stop descending and maintain the die-cutting state for 0.5s to ensure thorough die-cutting. During this process, the buffer spring 24 is compressed by the moving plate 19, which effectively buffers the downward impact force. At the same time, the support component provides stable support for the support plate 4, and no indentations are generated on the surface of the PET film.

[0037] 5. Reset and unloading: After die-cutting is completed, the controller controls the servo cylinder to drive the moving plate 19 to reset upwards, and at the same time controls the first drive motor 8 to start in reverse, driving the support plate 4 to move forward to the initial position; the operator removes the die-cut product and completes one die-cutting cycle.

[0038] 6. Continuous processing: Repeat the above feeding, positioning, die-cutting, and resetting unloading processes to achieve continuous high-speed die-cutting of products. The die-cutting speed of the equipment can reach 300 times / minute, and the product qualification rate is ≥99.5%.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-speed die-cutting machine with non-marking die-cutting, comprising a frame (1), characterized in that: The upper surface of the frame (1) is provided with a support mechanism that can move back and forth. The frame (1) is provided with a first drive component. The support mechanism is connected to the first drive component. The first drive component can drive the support mechanism to move back and forth. The frame (1) is provided with a die-cutting mechanism that can move up and down through a support frame. The support frame is equipped with a second drive component (2). The second drive component (2) can drive the die-cutting mechanism to move up and down. A buffer assembly is provided on the support frame below the die-cutting mechanism, and a support assembly for supporting the bearing mechanism is provided on the frame (1) below the die-cutting mechanism; The die-cutting mechanism is equipped with a first displacement detection component (3) for detecting the position of the die-cutting mechanism, and the frame (1) is provided with a second displacement detection component for detecting the position of the bearing mechanism; It also includes a controller, which is electrically connected to the first drive component, the second drive component (2), the first displacement detection component (3), and the second displacement detection component.

2. The high-speed die-cutting machine with non-marking die-cutting according to claim 1, characterized in that: The bearing mechanism includes a support plate (4), a first baffle (5) is installed on the rear side of the upper surface of the support plate (4), and second baffles (6) are symmetrically arranged on the left and right sides of the upper surface of the support plate (4). Limiting grooves (7) are opened on the lower part of the opposite side of the two second baffles (6). The two limiting grooves (7) are used to place the product to be processed, and the two second baffles (6) can adjust the spacing.

3. The high-speed die-cutting machine with no indentation as described in claim 2, characterized in that: The first drive assembly includes a first drive motor (8), the output end of the first drive motor (8) is fixedly connected to a threaded screw (9), a threaded sleeve (10) is fixedly connected to the bottom center of the support plate (4), the threaded screw (9) passes through the front and rear side walls of the threaded sleeve (10), and the threaded sleeve (10) and the threaded screw (9) are threadedly connected, and the front end of the threaded screw (9) is rotatably connected to the bearing seat (11) on the frame (1); The upper surface of the frame (1) is provided with longitudinally extending limiting slide rails (12) on both the left and right sides. The lower surface of the support plate (4) is provided with longitudinally extending limiting slide plates (13) on both the left and right sides. The lower surface of the limiting slide plate (13) is provided with a limiting groove (14) that matches the upper part of the limiting slide rail (12) along its length direction. The limiting slide plate (13) is slidably connected to the limiting slide rail (12) through the limiting groove (14).

4. The high-speed die-cutting machine with no indentation as described in claim 3, characterized in that: The second displacement detection component uses a photoelectric switch (15). The photoelectric switch (15) is installed on the frame (1) below the die-cutting mechanism. The lower surface of the support plate (4) is equipped with a baffle (16) that works with the photoelectric switch (15). When the photoelectric switch (15) can detect the baffle (16), the bearing mechanism is located directly below the die-cutting mechanism.

5. The high-speed die-cutting machine with no indentation as described in claim 1, characterized in that: The support frame includes a top plate (17) and guide rods (18) installed at the four corners of the top. The bottom of the guide rods (18) is fixedly connected to the upper surface of the frame (1). The die-cutting mechanism includes a movable plate (19), and two longitudinally arranged third baffles (20) are installed on the lower surface of the movable plate (19). The upper part of the opposite side of the two third baffles (20) is provided with a mounting groove (21). A replaceable upper template (22) is installed between the two mounting grooves (21). A die-cutting knife (23) is installed on the lower surface of the upper template (22). The second drive assembly (2) is mounted on the top plate (17), and the telescopic end of the second drive assembly (2) passes through the top plate (17) and is fixedly connected to the upper surface of the movable plate (19).

6. The high-speed die-cutting machine for non-marking die-cutting according to claim 5, characterized in that: The buffer assembly includes a buffer spring (24), which is sleeved on the outer side wall of the guide rod (18) and is located between the lower surface of the moving plate (19) and the upper surface of the frame (1).

7. The high-speed die-cutting machine with no indentation as described in claim 6, characterized in that: The first displacement detection component (3) uses a displacement sensor with its detection head facing the upper surface of the frame (1).

8. The high-speed die-cutting machine for non-marking die-cutting according to claim 1, characterized in that: The support assembly includes two first support blocks (25) symmetrically installed on the upper surface of the frame (1), and a second support block (26) installed on the upper surface of the frame (1) is provided between the two first support blocks (25). The upper surfaces of the first support blocks (25) and the second support block (26) are flush with the lower surface of the bearing mechanism.

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