Multi-layer material synchronous cutting method of high-speed roller cutter type slicing machine

Abstract

The invention discloses a multi-layer material synchronous cutting method of a high-speed roller cutter type slicing machine. The method comprises the following steps that S1, materials are conveyed, wherein multiple layers of laminated materials are conveyed to a cutting area of the slicing machine at a constant speed; s2, dynamic cutting through an upper roller, specifically, the upper roller is oval, a die cutting knife strip is arranged on the surface of the upper roller, a rotating shaft of the upper roller is driven to move up and down through a synchronizing mechanism in the rotating process of the upper roller, and the die cutting knife strip keeps making contact with the multi-layer laminated material for cutting; s3, lower roller supporting matching is conducted, specifically, the lower roller is cylindrical and keeps rotating in the reverse direction with the upper roller, and cutting supporting is provided; s4, cutting is completed, specifically, the multiple layers of laminated materials are synchronously cut under the synergistic effect of the die-cutting knife strips of the upper roller and the lower roller, and the cut materials are output; through the dynamic design of the oval upper roller and the synchronous up-down moving mechanism, the technical problems of local pressure concentration, cutting area limitation, interlayer dislocation, adhesion and the like in a traditional cylindrical roller cutting mode are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of material cutting equipment, in particular to a method for synchronously cutting multi-layer materials with a high-speed roller-knife slicer. Background Art

[0002] In existing roller cutting equipment, cylindrical rollers are commonly used for material cutting. Cylindrical rollers are widely used in cutting scenarios such as thin films, composite materials, and multi-layer laminated materials due to their simple structure and low cost. However, as industrial production continues to increase its requirements for cutting accuracy and material diversity, the traditional cylindrical roller cutting mode has gradually exposed the following technical defects and application limitations: 1. The cutting pressure is single and concentrated, which can easily cause material damage: Fixed cutting point: During the rotation of the cylindrical roller, the cutting point is always fixed on the vertical line of the rotating shaft (the cutting point only contacts the material at that moment). The cutting time is extremely short, and the cutting pressure is concentrated on a single position, resulting in local overload.

[0003] The pressure cannot be adjusted: The cutting pressure cannot be adjusted dynamically during the cutting process. The pressure is concentrated and fixed, and cannot be flexibly controlled according to the characteristics of the material.

[0004] Residual internal stress: The residual internal stress of the material after cutting cannot be effectively released, which can easily cause problems such as warping and springback. Especially for flexible materials or multi-layer laminated materials, it is difficult to maintain a stable shape after cutting.

[0005] During the cutting process of multi-layered materials, excessive pressure may cause the materials to be crushed or deformed, ultimately affecting the cutting accuracy and edge quality.

[0006] 2. Cutting of multi-layer materials is prone to inter-layer dislocation or adhesion: Concentrated pressure: The pressure at a fixed cutting point acts directly on the material in a single direction, which is difficult to be evenly distributed to each layer of the material, resulting in interlayer slippage; excessive pressure will cause interlayer tearing, and insufficient pressure may cause interlayer adhesion after cutting.

[0007] Lack of dynamic adjustment capability: During the cutting process, the cutting force cannot be flexibly adjusted according to the thickness and structure of the material, and the interface between layers is misaligned due to uneven pressure.

[0008] Static force defects: Dynamic mechanical effects cannot be introduced during cylindrical roller cutting, and there is a lack of force constraints between material layers, which makes interlayer slippage and dislocation more likely to occur, especially during high-speed cutting. Summary of the invention

[0009] The purpose of the present invention is to provide a method for synchronous cutting of multi-layer materials by a high-speed roller-knife slicer. Through the dynamic design of the elliptical upper roller and the synchronous up and down movement mechanism, the present invention overcomes the technical problems of local pressure concentration, cutting area limitation, interlayer misalignment and adhesion in the traditional cylindrical roller cutting mode, and provides an innovative solution with high precision, high efficiency and adaptability to the cutting needs of complex materials.

[0010] The technical solution adopted by the present invention is as follows: A method for synchronously cutting multi-layer materials using a high-speed roller-knife slicer, the method comprising the following steps: S1 Material conveying: conveying multi-layered materials to the cutting area of ​​the slicer at a constant speed; S2 Dynamic cutting of upper roller: The upper roller is oval in shape, and a die-cutting blade is arranged on its surface. During the rotation of the upper roller, the rotating shaft of the upper roller is driven up and down by a synchronous mechanism, so that the die-cutting blade keeps in contact with the multi-layer laminated material for cutting; S3 Lower roller support: The lower roller is cylindrical and rotates in the opposite direction to the upper roller to provide cutting support; S4 Cutting completed: The multi-layered materials are synchronously cut under the coordinated action of the die-cutting blade of the upper roller and the lower roller, and the separated materials are output.

[0011] The length ratio of the major axis to the minor axis of the upper roller is 1.05:1 to 1.2:1, which is used to optimize the cutting pressure distribution and reduce the impact and damage to the material during the cutting process.

[0012] The cylindrical surface of the lower roller is covered with elastic material, which cooperates with the die-cutting blade of the upper roller to form a buffering effect, thereby ensuring cutting accuracy and extending the service life of the roller.

[0013] The multi-layer material includes but is not limited to a film material, a composite material or a multi-layer adhesive material, and its thickness ranges from 0.1 mm to 10 mm.

[0014] Wherein, the lower roller is a lightweight roller that rotates passively.

[0015] The arrangement of the die-cutting blades can be designed to be linear, curved or dotted according to cutting requirements to meet the needs of different cutting patterns.

[0016] A high-speed roller-knife slicer, characterized in that it comprises an upper roller and a lower roller; the upper roller is oval, and a die-cutting blade is arranged on its surface. During the rotation of the upper roller, the rotating shaft of the upper roller is driven up and down by a synchronous mechanism, so that the die-cutting blade keeps contact with the multi-layer laminated material for cutting; the lower roller is cylindrical and keeps rotating in the opposite direction to the upper roller to provide cutting support; The synchronization mechanism includes a spacing wheel with the same radial cross-sectional size, shape and rotation speed as the upper roller and the opposite rotation direction; the spacing wheel and the upper roller are centrally symmetrical at any time; the rotating shaft of the spacing wheel and the rotating shaft of the upper roller are located on the same vertical line; the upper end of a driving rod that is limited to only slide vertically up and down is rotatably connected to the rotating shaft of the upper roller, and a roller is rotatably arranged at the lower end; the roller rests downward on the elliptical surface of the spacing wheel; during the rotation of the spacing wheel, the upper roller is driven to move up and down synchronously through the driving rod.

[0017] Wherein, a bearing is sleeved outside the rotating shaft of the upper roller, and the outer surface of the bearing is tensionedly connected to the base fixing the lower roller through a supporting and obliquely stretched spring.

[0018] The rotating shaft of the upper roller is driven to rotate by a servo motor through a toothed chain transmission; the chain between the servo motor and the upper roller is stretched by a pre-compressed elastic telescopic rod, so that the chain is in a diamond shape to ensure that the chain remains tensioned during the up and down movement of the upper roller; two identical sprockets are rotatably arranged at both ends of the elastic telescopic rod, and the output shaft of the servo motor, the rotating shaft of the upper roller and the sprocket are respectively matched with the chain.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The traditional cylindrical roller cutting mode has problems such as fixed cutting point, single cutting pressure, and limited cutting area, which makes it difficult to meet the complex needs of multi-layer materials. The present invention has significant technical advantages over traditional cylindrical rollers in terms of cutting effect, precision, efficiency, and equipment reliability through the innovative design of the elliptical upper roller combined with the synchronous up and down movement of the axis.

[0020] 1. The cutting pressure of traditional cylindrical rollers is always concentrated at a fixed point, which can easily cause local overload and material deformation. The pressure cannot be adjusted during the cutting process, resulting in residual internal stress in the material after cutting, causing warping or rebound.

[0021] The cutting point of the present invention moves alternately in four small cycles of center-left-center-right-center-left-center-right-center, covering the width direction of the material and achieving multiple coverage cutting of the full width. The dynamic cutting area effectively disperses the cutting force, avoiding the crushing and tearing of the material caused by the concentrated pressure of the traditional cylindrical roller; The present invention also prolongs the cutting time. The elliptical upper roller is combined with dynamic up and down movement. Compared with the traditional cylindrical roller, the cutting point is only a moment on the vertical line of the rotating shaft. The cutting process of the present invention lasts for a certain distance and a period of time, so the cutting effect is more guaranteed.

[0022] During the dynamic cutting process, the cutting pressure gradually increases (from short axis to long axis) to complete deep cutting, and then gradually decreases (from long axis to short axis) to complete shallow cutting and stress release; The continuous cutting contact time enables more stable pressure application, avoiding material tearing or burr problems caused by instantaneous strong squeezing.

[0023] The continuous action of the cutting point makes the cutting process more stable, which is especially suitable for cutting multi-layer laminated materials and can fully cut through each layer of the material; the full coverage of the cutting path and the extended cutting time ensure the integrity of the cutting.

[0024] Continuous cutting reduces the impact of pressure fluctuations on cutting accuracy, and the cutting path forms a smooth trajectory on the material surface; the dynamic alternating cutting point movement and duration are combined to avoid uneven cutting due to insufficient coverage of the cutting area or too short a time.

[0025] 2. The fixed pressure of traditional cylindrical rollers can easily cause interlayer slippage or dislocation of multilayer materials during the cutting process, affecting the interlayer separation effect; the pressure cannot be adjusted dynamically, excessive local stress can cause tearing, and interlayer slippage can cause adhesion.

[0026] In the dynamic cutting process of the present invention, the cutting position occurs alternately on the feeding side (left side) and the discharging side (right side) during the rotation cycle of the upper roller. This alternating cutting mode makes the cutting position always change on both sides of the material, and no matter which side it is on, a bending effect will be applied to the multi-layer laminated material. Each layer is constrained by the bending force to prevent the inter-layer misalignment caused by the force in a single direction or excessive pressure concentration during the cutting process. The relative position of each layer of material after cutting will not be offset or misaligned, ensuring the integrity and accuracy of the material after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the process of the synchronous cutting method of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention when the end point of the short axis is rotated to a vertical position; Figure 3 It is a schematic diagram of the upper roller of the present invention when it rotates to a point where the cutting start point is located at a chord between the minor axis and the major axis; Figure 4 It is a schematic diagram of the structure of the present invention when the end point of the long axis is rotated to a vertical position; Figure 5 This is a schematic diagram of the present invention when the main cutting point is located on the left side of the vertical line of the rotating shaft; Figure 6 This is a schematic diagram of the present invention when the main cutting point moves to the right side of the vertical line of the rotating shaft.

[0028] Markings in the figure: 1. Multi-layer laminated material; 2. Upper roller; 21. Die-cutting blade; 22. Rotating shaft; 3. Lower roller; 41. Adjustable distance wheel; 42. Driving rod; 43. Roller; 44. Spring; 5. Base; 6. Servo motor; 61. Chain; 62. Elastic telescopic rod; 63. Sprocket. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] See also Figure 1 The present invention relates to a method for synchronously cutting multi-layer materials using a high-speed roller-knife slicer, the method comprising the following steps: S1 Material conveying: conveying the multi-layered material 1 to the cutting area of ​​the slicer at a constant speed; Conveying speed: Constant speed range is 20-200 m / min, the specific speed is adjusted according to the type and thickness of the material; Conveying method: Use a conveyor belt with tension control, with a tension range of 50-500N to ensure that the multi-layer laminated materials remain flat and do not slip during the conveying process; Applicable materials: including but not limited to film materials, composite materials, multi-layer adhesive materials, foam layer materials, etc.; Thickness range: 0.1mm to 15mm; Width range: 300 mm to 3000 mm; Materials: Plastics (such as polyethylene, polypropylene, etc.), metal films (such as aluminum foil), paper composite materials, rubber composite materials, etc.

[0031] S2 Dynamic cutting of upper roller 2: the upper roller 2 is oval in shape, and a die-cutting blade 21 is arranged on its surface. During the rotation of the upper roller 2, the rotating shaft 22 of the upper roller 2 is driven up and down by a synchronous mechanism, so that the die-cutting blade 21 keeps in contact with the multi-layer laminated material 1 for cutting; Oval Design: The ratio of major axis to minor axis length ranges from 1.05:1 to 1.2:1; Upper roller diameter range: short axis diameter is 200 mm to 800 mm, long axis diameter is 210 mm to 960 mm; Roller length range: 500 mm to 3500 mm (corresponding to material width); Material: The upper roller body is made of high-strength alloy steel or wear-resistant ceramic material, and the surface is coated with an anti-stick coating (such as polytetrafluoroethylene coating) to enhance durability and anti-stick properties.

[0032] Die cutting blade 21 design: Arrangement: According to the cutting requirements, the die-cutting blades can be designed as straight lines, curves or dot distribution; Blade spacing: adjustable from 5 mm to 200 mm; Material: The die-cutting blade is made of carbide or ceramic blades. The surface of the blade is hardened to improve wear resistance. The hardness range is 60-70HRC. Blade height: 1 mm to 15 mm, the specific height is selected according to the material thickness.

[0033] Upper roller rotation parameters: Speed ​​range: 50-300 rpm, controlled by servo motor to match material conveying speed; Synchronous control of dynamic up and down motion: Synchronous mechanism: When the upper roller rotates, the rotating shaft 22 is driven to move up and down through the linkage mechanism of the spacing wheel and the driving rod (see below for details), ensuring that the die-cutting blade 21 always keeps in contact with the multi-layer laminated material during cutting; Synchronous accuracy: The synchronization error does not exceed ±0.1 mm to ensure the cutting quality.

[0034] S3 Lower roller 3 support cooperation: The lower roller 3 is cylindrical and rotates in the opposite direction to the upper roller 2 to provide cutting support; Lower roller structure: Shape: Cylindrical; Diameter range: 200 mm to 800 mm; Material: Made of lightweight aluminum alloy or polyurethane, the lower roller surface is covered with elastic material (such as silicone rubber layer, thickness 5-20 mm) to form a buffering effect and reduce cutting vibration and impact.

[0035] How to run: Rotation mode: Passive rotation, driven by the reverse rotation of the upper roller; Reverse rotation speed: Synchronous with the upper roller, the speed range is 50-300 rpm.

[0036] Supporting function: Provide stable reverse support for the material and cooperate with the upper roller die-cutting blade to complete the cutting; The elastic cover absorbs the impact during cutting, extending the life of the die cutter and roller.

[0037] S4 Cutting is completed: the multi-layer laminated material 1 is synchronously cut under the coordinated action of the die-cutting blade 21 of the upper roller 2 and the lower roller 3, and the cut materials are output.

[0038] The cut and separated materials are output through the discharging device, and the specific parameters are as follows: Cutting accuracy: ±0.2 mm; Cutting shape: The shape of the cut material depends on the arrangement of the die-cutting blade strips (linear, curved or dot distribution); Cutting speed: Synchronized with the material conveying speed and the rotation speed of the upper roller, and the maximum cutting frequency is 100 times per second.

[0039] S5 control system and debugging: Servo motor drive: The upper roller is driven by a servo motor, and the power range is from 1 kW to 5 kW, which is selected according to the material type and cutting speed; the motor control system is linked with the synchronization mechanism to ensure the precise synchronization of the rotation and up-and-down movement of the upper roller.

[0040] Debugging and adjustment: Set the cutting parameters (such as speed, pressure, blade strip arrangement form, etc.) through the control panel, and adjust the up-and-down movement amplitude of the upper roller and the blade strip height according to the material thickness and width.

[0041] Through the dynamic cooperation between the elliptical upper roller and the cylindrical lower roller, the present invention realizes the dynamic adjustment of the cutting pressure and the alternating distribution of the cutting positions. Combined with the precise control of the synchronization mechanism, the multi-layer material cutting is more stable and efficient. The mechanism of gradually increasing and releasing the cutting pressure effectively protects the material, with high cutting accuracy, clear layer separation, reliable equipment operation, and is suitable for the high-speed cutting requirements of various industrial scenarios.

[0042] Specifically, the change in the bending degree of the chord drives the dynamic distribution of the cutting points: 1. From the minor axis to the major axis (the chord bends more): See Figure 5 , when the upper roller rotates from the minor axis end to the major axis end, the chord of the elliptical cross-section gradually bends, and the contact area gradually moves from the middle to the left and then back to the middle. During this process, the cutting points experience a small cycle of middle-left-middle to complete the deep cutting.

[0043] 2. From the major axis to the minor axis (the chord bends less): See Figure 6 , when the upper roller rotates back from the major axis end to the minor axis end, the chord of the elliptical cross-section gradually returns to straight, and the contact area gradually moves from the middle to the right and then back to the middle. During this process, the cutting points experience a small cycle of middle-right-middle to complete the release of the internal stress of the cutting.

[0044] 3. Four small cycles of the dynamic cutting mode: When the upper roller rotates one week, the cutting points sequentially experience four small cycles: middle-left-middle-right-middle-left-middle-right-middle, and each small cycle corresponds to the bending change of the chord and the gradual adjustment of the pressure.

[0045] 4. Synchronous up and down movement to ensure cutting contact force: During the process of changing the bending degree of the chord, the synchronous mechanism drives the axis of the upper roller to move up and down dynamically, ensuring that the cutting point always maintains sufficient contact and cutting force with the material while changing alternately between the middle, left and right sides.

[0046] See also Figures 2 to 4 A high-speed roller-knife slicer comprises an upper roller 2 and a lower roller 3; the upper roller 2 is oval, and a die-cutting blade 21 is arranged on its surface. During the rotation of the upper roller 2, a rotating shaft 22 of the upper roller 2 is driven up and down by a synchronous mechanism, so that the die-cutting blade 21 keeps in contact with the multi-layer laminated material 1 for cutting; the lower roller 3 is cylindrical and keeps rotating in the opposite direction to the upper roller 2 to provide cutting support; The synchronization mechanism includes a spacing wheel 41 with the same radial cross-sectional size, shape and rotation speed as the upper roller 2 and with an opposite rotation direction; the spacing wheel 41 and the upper roller 2 are centrally symmetrical at any time; the rotating shaft of the spacing wheel 41 and the rotating shaft of the upper roller 2 are located on the same vertical line; a driving rod 42 which is limited to only slide vertically up and down is rotatably connected to the rotating shaft of the upper roller 2 at its upper end, and a roller 43 is rotatably provided at its lower end; the roller 43 presses downward against the elliptical surface of the spacing wheel 41; during the rotation of the spacing wheel 41, the upper roller 2 is driven to move up and down synchronously through the driving rod 42.

[0047] Furthermore, a bearing is sleeved outside the rotating shaft of the upper roller 2, and the outer surface of the bearing is tensionedly connected to the base 5 fixing the lower roller 3 through a spring 44 that supports and pulls diagonally.

[0048] Furthermore, the rotating shaft of the upper roller 2 is driven to rotate by a servo motor 6 through a toothed chain transmission; the chain 61 between the servo motor 6 and the upper roller 2 is stretched by a pre-compressed elastic telescopic rod 62, so that the chain 61 is in a diamond shape to ensure that the chain 61 remains tensioned during the up and down movement of the upper roller 2; two identical sprockets 63 are rotatably arranged at both ends of the elastic telescopic rod 62, and the output shaft of the servo motor 6, the rotating shaft of the upper roller 2 and the sprocket 63 are respectively matched with the chain 61.

[0049] Specifically, the pitch wheel is linked with the drive rod: Diameter of the spacing wheel: 200 mm to 800 mm, which is completely consistent with the oval cross-section shape of the upper roller; Driving rod material: High-strength alloy steel is used to ensure transmission accuracy and durability; Roller material: The roller 43 is made of wear-resistant rubber or ceramic material, with a diameter ranging from 50 mm to 150 mm.

[0050] Servo motor and elastic chain: Servo motor power: 1kW to 5kW, selected according to upper roller speed and cutting load; Chain tension: Adjusted by pre-compressed elastic telescopic rod 62, tension range is 100-500N; Chain material: High-strength alloy steel, surface nickel-plated for anti-corrosion treatment.

[0051] Spring tensioning mechanism: Spring parameters: The tension range of the bracing spring is 50N to 200N, which is used to stabilize the up and down movement of the upper roller shaft; Spring material: High elastic alloy steel, service life exceeds 1 million cycles.

[0052] Equipment operating parameters: Applicable material width: 300 mm to 3000 mm; Maximum operating speed: 200 m / min; Operating Environment: Temperature range: 0℃ to 50℃; Humidity range: ≤80%RH.

[0053] The present invention is a high-speed roller-knife slicer, which realizes dynamic balance of pressure and dynamic alternation of cutting positions in high-speed synchronous cutting of multi-layer materials through the dynamic cutting of an elliptical upper roller and the supporting cooperation of a cylindrical lower roller, thereby optimizing cutting accuracy, reducing material damage, and extending the service life of the equipment.

[0054] 1. Dynamic pressure change mechanism of the elliptical upper roller: The upper roller is designed in an elliptical shape, and the ratio of its major axis to minor axis length ranges from 1.05:1 to 1.2:1. During the rotation process, when the upper roller surface moves from the minor axis end to the major axis end, the curvature of the chord gradually increases, and the cutting pressure gradually increases; conversely, when it moves from the major axis end to the minor axis end, the curvature of the chord gradually decreases, and the cutting pressure is gradually released.

[0055] The dynamic change of cutting pressure forms a cycle of "pressure increase - pressure release - pressure increase - pressure release", which effectively disperses the impact on the material during the cutting process and avoids damage to the material caused by excessive local pressure.

[0056] 2. Alternating distribution of dynamic cutting positions: The cutting position is alternated on the feed side (short axis to long axis) and the discharge side (long axis to short axis), and the upper roller rotates, cutting alternately twice a week. Due to the distribution of dynamic cutting positions, no matter which side the cutting position is located, the multi-layer laminated material will be subjected to a certain bending effect, thereby constraining the layers and avoiding misalignment or slippage between the layers.

[0057] 3. Synchronous mechanism realizes the up and down movement of the rotating shaft: The spacing wheel rotates synchronously with the upper roller to drive the shaft of the upper roller to move up and down during the cutting process. The elliptical surface of the spacing wheel pushes and pulls the shaft through the drive rod, achieving dynamic contact between the die-cutting blade and the multi-layer material, ensuring the accuracy of the cutting depth.

[0058] The precision control of the synchronization mechanism enables the die-cutting blade to adapt to changes in material thickness, ensuring cutting stability and accuracy.

[0059] 3. Support and buffering function of the lower roller: The lower roller is cylindrical in design and covered with elastic material. It provides support by counter-rotating with the upper roller. The elastic material absorbs the impact and vibration generated during the cutting process, reduces the wear between the die-cutting blade and the roller, and prolongs the service life of the equipment.

[0060] The high-speed roller-knife slicer of the present invention can be applied to the die-cutting processing of most multi-layer laminated materials, and the representative cases are as follows: Case 1: Cutting plastic film material (polyethylene film) The customer needed to cut polyethylene (PE) film rolls at high speed for packaging production. The material was a single-layer film with a thickness of 0.5 mm and a width of 1000 mm.

[0061] process: Material preparation and delivery: Film properties: Polyethylene single-layer film with good flexibility and smooth surface.

[0062] Conveying parameters: The conveying speed is set to 100 m / min; the conveyor belt tension is adjusted to 100 N to ensure that the film remains flat during transportation. The film is delivered to the cutting area via a tension-controlled conveyor belt.

[0063] Upper roller dynamic cutting: Upper roller dimensions: short axis diameter 300 mm, long axis diameter 330 mm; roller length 1200 mm (slightly longer than the material width).

[0064] Die cutting blade: Arrangement: Straight; the distance between blades is 100 mm, which can divide the film into 10 strips with uniform width; the height of blade is 1 mm.

[0065] Operating parameters: The upper roller speed is set to 200 rpm, synchronized with the material conveying speed; the shaft moves up and down by 2 mm to ensure the appropriate cutting depth.

[0066] Lower roller support cooperation: Lower roller dimensions: cylindrical diameter 350 mm, length 1200 mm; Flexible surface: Silicone rubber cover with a thickness of 10 mm to absorb cutting shock; hardness of 60 Shore A.

[0067] Operation mode: Passive reverse rotation, the speed is synchronized with the upper roller.

[0068] Cutting completed: After the film is cut, it is conveyed out through the discharging conveyor belt; Cutting results: cutting accuracy ±0.1 mm; the width of the film after cutting is 100 mm, and the edges are smooth and burr-free.

[0069] Case 2: Cutting aluminum foil composite materials Aluminum foil and polypropylene (PP) composite materials with a thickness of 1.5 mm need to be precisely cut for food packaging production. The material width is 800 mm.

[0070] process: Material preparation and delivery: Composite material properties: Aluminum foil thickness 1 mm, polypropylene thickness 0.5 mm; Delivery parameters: The conveying speed is set to 80 m / min; the conveyor belt tension is adjusted to 150 N to ensure that the composite material is flat and wrinkle-free.

[0071] Upper roller dynamic cutting: Upper roller dimensions: short axis diameter 400 mm, long axis diameter 440 mm; roller length 1000 mm.

[0072] Die cutting blade: Arrangement: Straight; blade spacing is 200 mm, cutting into 4 strips of equal width; blade height is 2 mm, adapted to the total thickness of the composite material.

[0073] Run parameters: The upper roller rotates at a speed of 150 rpm; the shaft moves up and down by 3 mm.

[0074] Lower roller support cooperation: Lower roller dimensions: cylindrical diameter 450 mm, length 1000 mm; Elastic surface: thickness 20 mm, hardness 50 Shore hardness; Mode of operation: Passive reverse rotation, synchronous with the upper roller.

[0075] Cutting completed: Cutting result: cutting accuracy ±0.2mm; the aluminum foil and PP layer are cut neatly, and the cutting surface is flat without deformation.

[0076] Case 3: Cutting multiple layers of adhesive material The customer needs to cut a 5-layer composite bonding material, each layer is 2 mm thick, the total thickness is 10 mm, and the width is 1500 mm.

[0077] process: Material preparation and delivery: Material properties: Multi-layer composite structure, thick and poor flexibility; Conveying parameters: The conveying speed is set to 50 m / min; the conveyor belt tension is adjusted to 300 N to ensure the stability of the laminated material.

[0078] Dynamic cutting of upper roller: Upper roller dimensions: short axis diameter 600 mm, long axis diameter 660 mm; roller length 1800 mm.

[0079] Die cutting blade: Arrangement: Curved, creating a wave cutting effect; blade height 10 mm, adapted to material thickness.

[0080] Run parameters: The upper roller rotates at a speed of 100 rpm; the shaft moves up and down by 10 mm.

[0081] Lower roller support cooperation: Lower roller dimensions: cylindrical diameter 700 mm, length 1800 mm; Elastic surface: thickness 30 mm, hardness 45 Shore hardness; Mode of operation: Passive counter-rotation.

[0082] Cutting completed: Cutting results: Cutting accuracy ±0.3 mm; 5-layer structure is cut evenly and the layers are clearly separated.

[0083] Case 4: Cutting rubber composites The customer required cutting of 3 layers of laminated rubber composite material with a total thickness of 8 mm and a width of 1200 mm.

[0084] process: Material preparation and delivery: Conveying speed: 60 m / min; Tension control: 200N.

[0085] Dynamic cutting of upper roller: Upper roller diameter: short axis diameter 500 mm, long axis diameter 550 mm; Die cutting blade height: 8 mm.

[0086] Cutting completed: Cutting accuracy ±0.2mm; no cracks on the edge.

[0087] Case 5: Cutting paper composite materials For cutting 3 layers of paper composite material, total thickness 4 mm.

[0088] process: Speed: 150 m / min; Roller: short axis 500 mm, long axis 550 mm.

[0089] result: Cutting accuracy ±0.1mm; smooth surface and neat cutting shape.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for synchronously cutting multi-layer materials using a high-speed roller-knife slicer, characterized in that: The method comprises the following steps: S1 Material conveying: conveying the multi-layered material (1) to the cutting area of ​​the slicer at a constant speed; S2 Dynamic cutting of the upper roller (2): The upper roller (2) is elliptical in shape, and a die-cutting blade (21) is provided on its surface. During the rotation of the upper roller (2), a rotating shaft (22) of the upper roller (2) is driven up and down by a synchronous mechanism, so that the die-cutting blade (21) keeps in contact with the multi-layer laminated material (1) for cutting; S3 Lower roller (3) support: The lower roller (3) is cylindrical and rotates in the opposite direction to the upper roller (2) to provide cutting support; S4 Cutting is completed: The multi-layered laminated material (1) is synchronously cut under the coordinated action of the die-cutting blade (21) of the upper roller (2) and the lower roller (3), and the cut materials are output.

2. The synchronous cutting method according to claim 1, characterized in that: The length ratio of the major axis to the minor axis of the upper roller (2) is 1.05:1 to 1.2:1, which is used to optimize the cutting pressure distribution and reduce the impact and damage to the material during the cutting process.

3. The synchronous cutting method according to claim 1, characterized in that: The cylindrical surface of the lower roller (3) is covered with elastic material, and cooperates with the die-cutting blade (21) of the upper roller (2) to form a buffering effect, thereby ensuring cutting accuracy and extending the service life of the roller.

4. The synchronous cutting method according to claim 1, characterized in that: The multi-layer material includes but is not limited to a film material, a composite material or a multi-layer adhesive material, and the thickness thereof ranges from 0.1 mm to 10 mm.

5. The synchronous cutting method according to claim 1, characterized in that: The lower roller (3) is a lightweight roller that rotates passively.

6. The synchronous cutting method according to claim 1, characterized in that: The arrangement of the die-cutting blades (21) can be designed to be linear, curved or dotted according to cutting requirements, so as to meet the requirements of different cutting patterns.

7. A high-speed roller-knife slicer, characterized in that: The invention comprises an upper roller (2) and a lower roller (3); the upper roller (2) is elliptical in shape, and a die-cutting blade (21) is arranged on its surface. When the upper roller (2) rotates, a rotating shaft (22) of the upper roller (2) is driven to move up and down by a synchronous mechanism, so that the die-cutting blade (21) keeps contact with the multi-layer laminated material (1) for cutting; the lower roller (3) is cylindrical in shape and keeps rotating in the opposite direction to the upper roller (2) to provide cutting support; The synchronization mechanism comprises a spacing wheel (41) having the same radial cross-sectional size, shape and rotation speed as the upper roller (2) and a rotation direction opposite to that of the upper roller (2); the spacing wheel (41) and the upper roller (2) are centrally symmetrical at any time; the rotation axis of the spacing wheel (41) and the rotation axis of the upper roller (2) are located on the same vertical line; a driving rod (42) which is limited to be able to slide vertically up and down is rotatably connected to the rotation axis of the upper roller (2) at its upper end, and a roller (43) is rotatably arranged at its lower end; the roller (43) is pressed downward against the elliptical surface of the spacing wheel (41); and during the rotation of the spacing wheel (41), the driving rod (42) drives the upper roller (2) to move up and down synchronously.

8. The high-speed roller-knife slicer according to claim 7, characterized in that: A bearing is sleeved outside the rotating shaft of the upper roller (2), and the outer surface of the bearing is tensionedly connected to a base (5) for fixing the lower roller (3) via a supporting and obliquely tensioned spring (44).

9. The high-speed roller-knife slicer according to claim 7, characterized in that: The rotating shaft of the upper roller (2) is driven to rotate by a servo motor (6) through a toothed chain transmission; the chain (61) between the servo motor (6) and the upper roller (2) is stretched by a pre-compressed elastic telescopic rod (62), so that the chain (61) is in a rhombus shape, so as to ensure that the chain (61) remains taut during the upward and downward movement of the upper roller (2); two identical sprockets (63) are rotatably provided at both ends of the elastic telescopic rod (62), and the output rotating shaft of the servo motor (6), the rotating shaft of the upper roller (2) and the sprocket (63) are respectively matched with the chain (61).

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