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

Abstract

The present invention discloses a method for synchronous cutting of multi-layer materials by a high-speed roller cutter slicing machine. The method includes the following steps: S1 Material feeding: feeding the multi-layer laminated materials to the cutting area of the slicing machine at a constant speed; S2 Dynamic cutting of the upper roller: the upper roller is elliptical, and die-cutting knife strips are arranged on its surface. During the rotation of the upper roller, the rotating shaft of the upper roller is driven to move up and down simultaneously through a synchronization mechanism, so that the die-cutting knife strips keep in contact with the multi-layer laminated materials for cutting; S3 Support and cooperation of the lower roller: the lower roller is cylindrical and rotates in the opposite direction to the upper roller to provide cutting support; S4 Completion of cutting: the multi-layer laminated materials are synchronously cut under the cooperation of the die-cutting knife strips of the upper roller and the lower roller, and the divided materials are output; through the dynamic design of the elliptical upper roller and the synchronous up and down movement mechanism, technical problems such as local pressure concentration, limited cutting area, interlayer misalignment and adhesion in the traditional cylindrical roller cutting mode are overcome.

Description

Technical Field

[0001] The present invention belongs to the technical field of material cutting equipment, and specifically relates to a method for synchronous cutting of multi-layer materials by a high-speed roller cutter slicing machine. Background Art

[0002] In existing roller cutting equipment, cylindrical rollers are generally used for material cutting. Due to their simple structure and low cost, cylindrical rollers are widely used in cutting scenarios such as films, composite materials, and multi-layer laminated materials. However, with the continuous improvement of the requirements for cutting accuracy and material diversity in industrial production, the traditional cylindrical roller cutting mode gradually exposes the following technical defects and application limitations:

[0003] 1. The cutting pressure is single and concentrated, which is likely to cause material damage:

[0004] 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 this instant). The cutting time is extremely short, and the cutting pressure acts concentratedly on a single position, resulting in local overload.

[0005] Non-adjustable pressure: During the cutting process, the cutting pressure cannot be dynamically adjusted. The pressure is concentrated and fixed, and cannot be flexibly controlled according to the characteristics of the material.

[0006] Residual internal stress: The residual internal stress of the material after cutting cannot be effectively released, which is likely to 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.

[0007] During the cutting process of multi-layer laminated materials, the material may be crushed and deformed due to excessive pressure, ultimately affecting the cutting accuracy and edge quality.

[0008] 2. During the cutting of multi-layer materials, interlayer misalignment or adhesion is likely to occur:

[0009] Concentrated pressure action: The pressure at the fixed cutting point acts directly in a single direction of the material, and it is difficult to be evenly distributed to each layer of the material, resulting in interlayer slip; when the pressure is too high, interlayer tearing will be caused, and when the pressure is insufficient, interlayer adhesion may occur after cutting.

[0010] Lack of dynamic adjustment ability: During the cutting process, the cutting force cannot be flexibly adjusted according to the thickness and structure of the material, and the interlayer interface is misaligned due to uneven pressure.

[0011] Static stress defect: When cutting with a cylindrical roller, dynamic mechanical action cannot be introduced, and there is a lack of force constraint between material layers. Especially during high-speed cutting, interlayer slip and misalignment are more likely to occur. Summary of the Invention

[0012] The object of the present invention is: The present invention aims to provide a method for synchronous cutting of multi-layer materials by a high-speed roller cutter slicing machine. Through the dynamic design of the elliptical upper roller and the synchronous up-and-down movement mechanism, it overcomes the technical problems such as local pressure concentration, limited cutting area, interlayer misalignment and adhesion in the traditional cylindrical roller cutting mode, and provides an innovative solution with high precision, high efficiency and suitable for the cutting requirements of complex materials.

[0013] The technical solution adopted by the present invention is as follows:

[0014] A method for synchronous cutting of multi-layer materials by a high-speed roller cutter slicing machine, the method comprising the following steps:

[0015] S1 Material conveying: Convey the multi-layer laminated material to the cutting area of the slicing machine at a constant speed;

[0016] S2 Dynamic cutting of the upper roller: The upper roller is elliptical, and die-cutting knife strips are arranged on its surface. During the rotation of the upper roller, the rotating shaft of the upper roller is driven to move up and down through a synchronous mechanism at the same time, so that the die-cutting knife strips keep in contact with the multi-layer laminated material for cutting;

[0017] S3 Support and cooperation of the lower roller: The lower roller is cylindrical and rotates in the opposite direction to the upper roller to provide cutting support;

[0018] S4 Cutting completion: The multi-layer laminated material is synchronously cut under the cooperation of the die-cutting knife strips of the upper roller and the lower roller, and the divided material is output.

[0019] Wherein, the ratio of the major axis length to the minor axis length 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 cutting.

[0020] Wherein, the cylindrical surface of the lower roller is covered with an elastic material, which cooperates with the die-cutting knife strips of the upper roller to form a buffering effect, ensuring cutting accuracy and extending the service life of the roller.

[0021] Wherein, the multi-layer material includes but is not limited to film materials, composite materials or multi-layer adhesive materials, and the thickness range is 0.1 mm to 10 mm.

[0022] Wherein, the lower roller is a lightweight roller that rotates passively.

[0023] Wherein, the arrangement form of the die-cutting knife strips can be designed as a straight line type, a curve type or a dot type distribution according to the cutting requirements to meet the requirements of different cutting patterns.

[0024] 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;

[0025] 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.

[0026] 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.

[0027] 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.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 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.

[0030] 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.

[0031] 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;

[0032] The present invention also extends the cutting time. The elliptical upper roller is combined with dynamic up-and-down movement. Compared with the traditional cylindrical roller where the cutting point is only at the vertical line of the rotating shaft for an instant, the cutting process of the present invention lasts for a certain distance and a certain period of time. Therefore, the cutting effect is more guaranteed.

[0033] During the dynamic cutting process, the cutting pressure gradually increases (from the minor axis to the major axis) to complete deep cutting, and then gradually decreases (from the major axis to the minor axis) to complete shallow cutting and stress release.

[0034] The continuous cutting contact time makes the pressure application more stable, avoiding material tearing or burr problems caused by instantaneous strong extrusion.

[0035] The continuous action of the cutting point makes the cutting process more stable, 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.

[0036] Continuous cutting reduces the influence of pressure fluctuation on cutting accuracy, and the cutting path forms a smooth trajectory on the material surface; the combination of dynamic alternating cutting point movement and continuous time avoids uneven cutting caused by insufficient cutting area coverage or too short time.

[0037] 2. The fixed pressure action of the traditional cylindrical roller easily causes interlayer slip or misalignment of multi-layer materials during the cutting process, affecting the interlayer separation effect; the pressure cannot be dynamically adjusted, and excessive local stress will cause tearing, and interlayer slip will cause adhesion.

[0038] During the dynamic cutting process of the present invention, the cutting position alternates between the feeding side (left side) and the discharging side (right side) within the rotation period of the upper roller. This alternating cutting mode makes the cutting position always change on both sides of the material. No matter which side it is on, a bending action will be applied to the multi-layer laminated material. Each layer is restricted by the bending force, preventing interlayer misalignment caused by single-direction force or over-concentrated pressure during the cutting process. The relative positions of the cut layers of materials will not shift or misalign, ensuring the integrity and accuracy of the cut materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic flow chart of the synchronous cutting method of the present invention;

[0040] Figure 2 is a schematic structural diagram of the present invention when the end point of the minor axis rotates to the vertical position;

[0041] Figure 3 is a schematic diagram of the present invention when the upper roller rotates to the chord between the minor axis and the major axis at the cutting start point;

[0042] Figure 4It is a schematic structural diagram when the long-axis end point of the present invention rotates to the vertical position;

[0043] Figure 5 It is a schematic diagram when the main cutting point of the present invention is located on the left side of the vertical line of the rotating shaft;

[0044] Figure 6 It is a schematic diagram when the main cutting point of the present invention moves to the right side of the vertical line of the rotating shaft.

[0045] Markings in the figure: 1. Multi-layer laminated material; 2. Upper roller; 21. Die-cutting knife bar; 22. Rotating shaft; 3. Lower roller; 41. Spacing-adjusting wheel; 42. Driving rod; 43. Roller; 44. Spring; 5. Base; 6. Servo motor; 61. Chain; 62. Elastic telescopic rod; 63. Sprocket. Detailed implementation manners

[0046] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to 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.

[0047] See Figure 1 , the present invention relates to a method for synchronous cutting of multi-layer materials by a high-speed roller knife slicing machine, and the method includes the following steps:

[0048] S1 Material transportation: Transport the multi-layer laminated material 1 to the cutting area of the slicing machine at a constant speed;

[0049] Transportation speed: The constant speed range is 20 - 200 meters per minute, and the specific speed is adjusted according to the type and thickness of the material;

[0050] Transportation method: Use a conveyor belt with tension control, and the tension range is 50 - 500N to ensure that the multi-layer laminated material remains flat and does not slip during transportation;

[0051] Applicable materials: including but not limited to film materials, composite materials, multi-layer adhesive materials, foam layer materials, etc.;

[0052] Thickness range: 0.1 mm to 15 mm;

[0053] Width range: 300 mm to 3000 mm;

[0054] Material: plastics (such as polyethylene, polypropylene, etc.), metal films (such as aluminum foil), paper composite materials, rubber composite materials, etc.

[0055] Dynamic cutting of the upper roller 2: The upper roller 2 is elliptical, and die-cutting knife strips 21 are arranged on its surface. During the rotation of the upper roller 2, the rotation shaft 22 of the upper roller 2 is driven to move up and down through a synchronization mechanism at the same time, so that the die-cutting knife strips 21 keep in contact with the multi-layer laminated material 1 for cutting;

[0056] Elliptical design:

[0057] Ratio range of the major axis to the minor axis length: 1.05:1 to 1.2:1;

[0058] Diameter range of the upper roller: The minor axis diameter is 200 mm to 800 mm, and the major axis diameter is 210 mm to 960 mm;

[0059] Roller length range: 500 mm to 3500 mm (corresponding to the material width);

[0060] Material: The main body of the upper roller is made of high-strength alloy steel or wear-resistant ceramic material, and the surface is coated with an anti-sticking coating (such as polytetrafluoroethylene coating) to enhance durability and anti-adhesion.

[0061] Design of the die-cutting knife strips 21:

[0062] Arrangement form: According to the cutting requirements, the die-cutting knife strips can be designed in a straight line, curve or dot distribution;

[0063] Knife strip spacing: The adjustable range is 5 mm to 200 mm;

[0064] Material: The die-cutting knife strips are made of cemented carbide or ceramic blades, and the surface of the knife strips is hardened to improve wear resistance, and the hardness range is 60-70 HRC;

[0065] Knife strip height: 1 mm to 15 mm, and the specific height is selected according to the material thickness.

[0066] Rotating parameters of the upper roller:

[0067] Rotation speed range: 50-300 revolutions per minute, and the rotation speed is controlled by a servo motor to match the material conveying speed;

[0068] Synchronous control of the dynamic up and down movement:

[0069] Synchronization mechanism: During the rotation of the upper roller, the rotation shaft 22 is driven to move up and down through the linkage mechanism of the distance adjusting wheel and the driving rod (see the following text for details), ensuring that the die-cutting knife strips 21 always keep in contact with the multi-layer laminated material during cutting;

[0070] Synchronization accuracy: The synchronization error does not exceed ±0.1 mm to ensure the cutting quality.

[0071] S3 Lower roller 3 support and cooperation: The lower roller 3 is cylindrical and rotates in the opposite direction to the upper roller 2 to provide cutting support;

[0072] Structure of the lower roller:

[0073] Shape: Cylindrical;

[0074] Diameter range: 200 mm to 800 mm;

[0075] Material: Made of lightweight aluminum alloy or polyurethane material. The surface of the lower roller is covered with an elastic material (such as a silicone rubber layer with a thickness of 5 - 20 mm) to form a buffering effect and reduce cutting vibration and impact.

[0076] Operation mode:

[0077] Rotation mode: Passive rotation, driven by the reverse rotation of the upper roller;

[0078] Reverse rotation speed: Synchronous with the upper roller, with a rotational speed range of 50 - 300 revolutions per minute.

[0079] Support function:

[0080] Provide stable reverse support for the material and cooperate with the die-cutting blade strip of the upper roller to complete cutting;

[0081] The elastic covering layer can absorb the impact force during the cutting process and extend the service life of the die-cutting blade strip and the roller.

[0082] S4 Cutting completion: The multi-layer laminated material 1 is synchronously cut under the cooperation of the die-cutting blade strip 21 of the upper roller 2 and the lower roller 3, and the divided material is output.

[0083] The divided material after cutting is output through the discharging device. The specific parameters are:

[0084] Cutting accuracy: ±0.2 mm;

[0085] Cutting shape: The shape of the material after cutting depends on the arrangement form of the die-cutting blade strip (linear, curved or dot distribution);

[0086] Cutting speed: Synchronous with the material conveying speed and the rotational speed of the upper roller, with a maximum cutting frequency of 100 times per second.

[0087] S5 Control system and debugging:

[0088] Servo motor drive: The upper roller is driven by a servo motor with a power range of 1 kW to 5 kW, 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 - down movement of the upper roller.

[0089] Debugging and adjustment: Set cutting parameters (such as speed, pressure, cutter bar arrangement form, etc.) through the control panel, and adjust the up-and-down movement range of the upper roller and the cutter bar height according to the thickness and width of the material.

[0090] Through the dynamic cooperation of 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.

[0091] Specifically, the change in the bending degree of the chord drives the dynamic distribution of the cutting points:

[0092] 1. From the minor axis to the major axis (the chord bending increases):

[0093] 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 side and then back to the middle. During this process, the cutting point experiences a small cycle of middle-left-middle, completing the deep cutting.

[0094] 2. From the major axis to the minor axis (the chord bending decreases):

[0095] 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 being straight, and the contact area gradually moves from the middle to the right side and then back to the middle. During this process, the cutting point experiences a small cycle of middle-right-middle, completing the release of the internal stress of the cutting.

[0096] 3. Four small cycles of the dynamic cutting mode:

[0097] When the upper roller rotates one week, the cutting point sequentially experiences 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.

[0098] 4. Synchronous up-and-down movement to ensure the cutting contact force:

[0099] During the change in the bending degree of the chord, the dynamic up-and-down movement of the axis of the upper roller is driven by the synchronization mechanism to ensure that the cutting point always maintains sufficient contact and cutting force with the material while alternating between the middle, left, and right sides.

[0100] See Figures 2 to 4A 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;

[0101] 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.

[0102] 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.

[0103] 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.

[0104] Specifically, the pitch wheel is linked with the driving rod:

[0105] Diameter of the spacing wheel: 200 mm to 800 mm, which is completely consistent with the oval cross-section shape of the upper roller;

[0106] Driving rod material: High-strength alloy steel is used to ensure transmission accuracy and durability;

[0107] Roller material: The roller 43 is made of wear-resistant rubber or ceramic material, with a diameter ranging from 50 mm to 150 mm.

[0108] Servo motor and elastic chain:

[0109] Servo motor power: 1kW to 5kW, selected according to upper roller speed and cutting load;

[0110] Chain tension: Adjusted by pre-compressed elastic telescopic rod 62, tension range is 100-500N;

[0111] Chain material: High-strength alloy steel is adopted, and the surface is treated with nickel plating for corrosion prevention.

[0112] Spring tensioning mechanism:

[0113] Spring parameters: The tension range of the opposing diagonal tension spring is 50N to 200N, which is used to stabilize the up and down movement of the upper roller shaft.

[0114] Spring material: High-elasticity alloy steel is adopted, and the service life exceeds 1 million cycles.

[0115] Equipment operating parameters:

[0116] Applicable material width: 300 mm to 3000 mm;

[0117] Maximum operating speed: 200 m / min;

[0118] Operating environment:

[0119] Temperature range: 0°C to 50°C;

[0120] Humidity range: ≤80%RH.

[0121] The present invention is a high-speed roller cutter slicing machine. Through the dynamic cutting of the elliptical upper roller and the supporting cooperation of the cylindrical lower roller, the dynamic balance of pressure and the dynamic alternation of cutting positions are achieved in the high-speed synchronous cutting of multi-layer materials, thereby optimizing the cutting accuracy, reducing material damage, and prolonging the service life of the equipment.

[0122] 1. Dynamic pressure change mechanism of the elliptical upper roller:

[0123] The upper roller is designed in an ellipse, and the ratio range of the major axis length to the minor axis length is 1.05:1 to 1.2:1. During the rotation process, when the surface of the upper roller moves from the minor axis end to the major axis end, the bending degree of the chord gradually increases, and the cutting pressure gradually increases; conversely, when moving from the major axis end to the minor axis end, the bending degree of the chord gradually decreases, and the cutting pressure is gradually released.

[0124] The dynamic change of the cutting pressure forms a cycle process of "pressure increase - pressure release - pressure increase - pressure release", effectively dispersing the impact on the material during the cutting process and avoiding damage to the material caused by excessive local pressure.

[0125] 2. Alternating distribution of dynamic cutting positions:

[0126] The cutting positions alternate between the feeding side (from the short axis to the long axis) and the discharging side (from the long axis to the short axis). As the upper roller rotates, the alternate cutting occurs twice per revolution. Due to the distribution of the dynamic cutting positions, no matter which side the cutting position is on, the multi-layer laminated material will be subjected to a certain bending effect, thereby constraining the layers and avoiding layer misalignment or slippage.

[0127] 3. The synchronization mechanism realizes the up-and-down movement of the rotating shaft:

[0128] Through the pitch adjustment wheel that rotates synchronously with the upper roller, the rotating shaft of the upper roller is driven to move up and down during the cutting process. The elliptical surface of the pitch adjustment wheel pushes and pulls the rotating shaft through the driving rod to achieve the dynamic contact between the die-cutting blade strip and the multi-layer material, ensuring the accuracy of the cutting depth.

[0129] The precision control of the synchronization mechanism enables the die-cutting blade strip to adapt to the change in material thickness, ensuring the stability and accuracy of cutting.

[0130] 3. The support and buffering functions of the lower roller:

[0131] The lower roller is designed as a cylinder, and its surface is covered with an elastic material. It provides support in cooperation with the upper roller through reverse rotation. The elastic material absorbs the impact force and vibration generated during the cutting process, reduces the wear between the die-cutting blade strip and the roller, and extends the service life of the equipment.

[0132] The high-speed roller cutter slicing machine of the present invention can be applied to the die-cutting processing of most multi-layer laminated materials. Representative cases are as follows:

[0133] Case 1: Cutting plastic film material (polyethylene film)

[0134] The customer needs to perform high-speed cutting on a polyethylene (PE) film coil for packaging production. The material is a single-layer film with a thickness of 0.5 mm and a width of 1000 mm.

[0135] Process:

[0136] Material preparation and transportation:

[0137] Film properties: Single-layer polyethylene film, with good flexibility and smooth surface.

[0138] Transportation parameters: The transportation speed is set at 100 m / min; the conveyor belt tension is adjusted to 100 N to ensure that the film remains flat during transportation. The film is sent to the cutting area through the conveyor belt with tension control.

[0139] Dynamic cutting of the upper roller:

[0140] Dimensions of the upper roller: The diameter of the short axis is 300 mm, the diameter of the long axis is 330 mm; the length of the roller is 1200 mm (slightly longer than the material width).

[0141] Die-cutting blade strip:

[0142] Arrangement form: linear; the distance between blade strips is 100 mm, realizing the division of the film into 10 strips of uniform width; the height of the blade strip is 1 mm.

[0143] Operating parameters: the rotational speed of the upper roller is set to 200 revolutions per minute, synchronized with the material conveying speed; the vertical movement amplitude of the rotating shaft is 2 mm to ensure appropriate cutting depth.

[0144] Support and cooperation of the lower roller:

[0145] Dimensions of the lower roller: cylindrical diameter 350 mm, length 1200 mm;

[0146] Elastic surface layer: a silicone rubber covering layer with a thickness of 10 mm to absorb cutting vibration; hardness is 60 Shore hardness.

[0147] Operating mode: passive reverse rotation, rotational speed synchronized with the upper roller.

[0148] Cutting completion: After the film is cut, it is conveyed out through the discharge conveyor belt;

[0149] Cutting result: cutting accuracy ±0.1 mm; the width of the divided film is 100 mm, and the edges are smooth without burrs.

[0150] Case 2: Cutting aluminum foil composite material

[0151] Precision cutting is required for a composite material of aluminum foil with a thickness of 1.5 mm and polypropylene (PP) for food packaging production. The width of the material is 800 mm.

[0152] Process:

[0153] Material preparation and conveying:

[0154] Properties of the composite material: aluminum foil thickness 1 mm, polypropylene thickness 0.5 mm;

[0155] Conveying parameters:

[0156] The conveying speed is set to 80 m / min; the conveyor belt tension is adjusted to 150 N to ensure the flatness of the composite material without wrinkles.

[0157] Dynamic cutting of the upper roller:

[0158] Dimensions of the upper roller: short axis diameter 400 mm, long axis diameter 440 mm; roller length 1000 mm.

[0159] Die-cutting blade strip:

[0160] Arrangement form: linear; the distance between knife bars is 200 mm, cutting into 4 strips of equal width materials; the height of the knife bar is 2 mm, adapted to the total thickness of the composite material.

[0161] Operating parameters:

[0162] The rotational speed of the upper roller is 150 revolutions per minute; the vertical movement range of the rotating shaft is 3 mm.

[0163] Support and cooperation of the lower roller:

[0164] Dimensions of the lower roller: cylindrical diameter 450 mm, length 1000 mm;

[0165] Elastic surface layer: thickness is 20 mm, hardness is 50 Shore hardness;

[0166] Operating mode: passive reverse rotation, synchronized with the upper roller.

[0167] Cutting completed:

[0168] Cutting result: cutting accuracy ±0.2 mm; the cutting of the aluminum foil and PP layer is neat, and the cutting surface is flat without deformation.

[0169] Case 3: Cutting multi-layer bonded materials

[0170] The customer needs to cut a bonded material composed of 5 layers of composites, with each layer having a thickness of 2 mm, a total thickness of 10 mm, and a width of 1500 mm.

[0171] Process:

[0172] Material preparation and transportation:

[0173] Material properties: multi-layer composite structure, relatively large thickness, and poor flexibility;

[0174] Transportation parameters: the transportation speed is set to 50 m / min; the conveyor belt tension is adjusted to 300 N to ensure the stability of the laminated material.

[0175] Dynamic cutting of the upper roller:

[0176] Dimensions of the upper roller: short axis diameter 600 mm, long axis diameter 660 mm; roller length 1800 mm.

[0177] Die-cutting knife bar:

[0178] Arrangement form: curved, forming a wave cutting effect; the height of the knife bar is 10 mm, adapted to the material thickness.

[0179] Operating parameters:

[0180] The rotational speed of the upper roller is 100 revolutions per minute; the vertical movement range of the rotating shaft is 10 mm.

[0181] Lower roller support and fit:

[0182] Lower roller dimensions: cylindrical diameter 700 mm, length 1800 mm;

[0183] Elastic surface layer: thickness 30 mm, hardness 45 Shore hardness;

[0184] Operating mode: passive reverse rotation.

[0185] Cutting completed:

[0186] Cutting result: cutting accuracy ±0.3 mm; 5-layer structure is cut evenly, and the separation between layers is clear.

[0187] Case 4: Cutting rubber composite material

[0188] The customer requests to cut a 3-layer laminated rubber composite material with a total thickness of 8 mm and a width of 1200 mm.

[0189] Process:

[0190] Material preparation and transportation:

[0191] Transportation speed: 60 m / min;

[0192] Tension control: 200 N.

[0193] Dynamic cutting of the upper roller:

[0194] Upper roller diameter: short axis diameter 500 mm, long axis diameter 550 mm;

[0195] Height of the die-cutting knife strip: 8 mm.

[0196] Cutting completed:

[0197] Cutting accuracy ±0.2 mm; no cracks at the edges.

[0198] Case 5: Cutting paper composite material

[0199] Used for cutting a 3-layer paper composite material with a total thickness of 4 mm.

[0200] Process:

[0201] Speed: 150 m / min;

[0202] Roller: short axis 500 mm, long axis 550 mm.

[0203] Result:

[0204] Cutting accuracy ±0.1 mm; smooth surface, neat cutting shape.

[0205] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A synchronous cutting method for multi-layer materials by a high-speed roller cutter slicing machine, characterized in that, The method includes the following steps: S1 Material transportation: The multi-layer laminated material (1) is transported 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, and a die-cutting knife strip (21) is provided on its surface. During the rotation of the upper roller (2), the rotating shaft (22) of the upper roller (2) is driven to move up and down simultaneously through a synchronization mechanism, so that the die-cutting knife strip (21) keeps in contact with the multi-layer laminated material (1) for cutting; S3 Support and cooperation of the lower roller (3): The lower roller (3) is cylindrical and rotates in the opposite direction to the upper roller (2) to provide cutting support; S4 Completion of cutting: The multi-layer laminated material (1) is synchronously cut under the cooperation of the die-cutting knife strip (21) of the upper roller (2) and the lower roller (3), and the divided material is output.

2. The synchronous cutting method according to claim 1, wherein: The ratio of the major axis length to the minor axis length 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 cutting.

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

4. The synchronous cutting method according to claim 1, wherein: The multi-layer material includes, but is not limited to, film materials, composite materials or multi-layer adhesive materials, and its thickness 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, wherein: The arrangement form of the die-cutting knife strip (21) can be designed as a straight line type, a curve type or a dot distribution according to the cutting requirements to meet the needs of different cutting patterns.

7. A high-speed roller cutter slicing machine, characterized in that: It includes an upper roller (2) and a lower roller (3); the upper roller (2) is elliptical, and a die-cutting knife strip (21) is provided on its surface. During the rotation of the upper roller (2), the rotating shaft (22) of the upper roller (2) is driven to move up and down simultaneously through a synchronization mechanism, so that the die-cutting knife strip (21) keeps in contact with the multi-layer laminated material (1) for cutting; the lower roller (3) is cylindrical and rotates in the opposite direction to the upper roller (2) to provide cutting support; The synchronization mechanism includes an adjustment wheel (41) that has the same radial cross-sectional size, shape and rotation speed as the upper roller (2) and rotates in the opposite direction; the adjustment wheel (41) is centrosymmetric with the upper roller (2) at any time; the rotating shaft of the adjustment wheel (41) and the rotating shaft of the upper roller (2) are located on the same vertical line; the upper end of a driving rod (42) that is limited to slide vertically up and down is rotatably connected to the rotating shaft of the upper roller (2), and a roller (43) is rotatably provided at the lower end; the roller (43) abuts downward against the elliptical surface of the adjustment wheel (41); during the rotation of the adjustment wheel (41), the upper roller (2) is driven to move up and down synchronously through the driving rod (42).

8. The high-speed roller cutter slicing machine according to claim 7, wherein: A bearing is also sleeved outside the rotating shaft of the upper roller (2), and the outer surface of the bearing is tensionally connected to the base (5) for fixing the lower roller (3) through a spring (44) that is supported and obliquely pulled.

9. The high-speed roller cutter slicing machine 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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