145 results about "Large format" patented technology

According to the switchable double-laser-head machining light path system and device, a three-dimensional galvanometer and a cutting head assembly are integrated into a machining head assembly, a light path switching mechanism is adopted, two dichroscopes are horizontally moved through a sliding table, selective light splitting is conducted on wavelength setting of the two dichroscopes, and therefore the machining precision of the two dichroscopes is improved. Rapid seamless switching and light path multiplexing between a three-dimensional galvanometer machining mode and a cutting head machining mode are achieved, it is ensured that the lens angle does not need to be adjusted again or light path alignment does not need to be conducted after light path switching, coaxial CCD monitoring is adopted, according to the wavelength setting characteristics of the two dichroscopes, the wavelength differentiation design is conducted on the first illumination light source and the second illumination light source, and therefore the machining efficiency is improved. According to the multi-axis moving platform, the same CCD camera is shared by two machining modes, high-precision real-time monitoring under the double machining modes is achieved, a closed-loop control basis is provided for the laser machining process, and meanwhile, the multi-axis moving platform is matched with the two rotary table assemblies, so that laser machining can be flexibly conducted on a curved-surface workpiece within a large-format range.

The invention relates to a large-breadth flexible damage sensing material and a preparation method thereof, belongs to the field of intelligent material preparation, and solves the problem that large-scale preparation of the large-breadth flexible damage sensing material is difficult in the prior art. The invention discloses a large-breadth flexible damage sensing material and a preparation method thereof. The large-breadth flexible damage sensing material comprises a flexible substrate layer, a conductive layer and a packaging layer, wherein the conductive layer is superposed on the flexible substrate layer; the packaging layer covers the conductive layer; the conductive layer is made of a laser-engraved polyimide film, a functional laser-induced graphene structure and an auxiliary separation structure which are etched by a laser engraving machine are arranged on the conductive layer, and the auxiliary separation structure comprises a film through hole and an edge cutting line; the large-breadth flexible damage sensing material provided by the invention is high in fineness, stable in performance and capable of meeting large-breadth sensing application, the preparation method of the large-breadth flexible damage sensing material is simple in step and high in preparation efficiency, and the large-breadth flexible damage sensing material which is stable in performance and high in fineness can be prepared in batches.

The utility model discloses a rotary projection imaging device, which comprises a transparent upper shell, a middle shell, a lower shell and a neck shell which are sequentially assembled and connected to form a closed shell, one end of the upper shell is provided with the neck shell, the neck shell and the upper shell are integrally formed, the middle shell and the lower shell are integrally formed, and the middle shell and the lower shell are integrally formed. One end of the upper shell is clamped and sealed with the middle shell, a fixed seat is mounted on the inner top surface of the upper shell, a rotating mechanism and an imaging mechanism are mounted on the fixed seat, the rotating mechanism is connected with a rotating bracket, a strip-shaped luminous body is arranged on the peripheral surface of the rotating bracket, and the strip-shaped luminous body is electrically connected with the imaging mechanism; the upper shell and the lower shell are both designed to be of a hollow hemisphere structure, and the middle shell is designed to be of a hollow cylinder structure. The closed shell has good stability and sealing performance, is beneficial to clamping assembly, does not occupy a large space, is beneficial to suspension in a narrow space, and can project and present a dynamic picture in front of viewers in a large format.

The invention belongs to the technical field of 3D printing additive manufacturing, and provides a large-breadth 3D printing local area double-camera grafting printing device and method.The large-breadth 3D printing local area double-camera grafting printing device comprises an image collecting device, a high-precision ceramic calibration plate, a to-be-grafted part clamp and a printing equipment upper computer; the double cameras are fixed on an equipment top plate through supports, the field of view of the large-field-of-view camera completely covers the whole breadth of the substrate, and the field of view of the small-field-of-view camera completely covers a local area to be grafted; the calibration plate is divided into two specifications of adaptive double cameras, the clamp can be used for detaching and fixing parts and leveling a grafting surface, and the upper computer is electrically connected with the double cameras and the printing equipment to receive positioning data and adjust a printing model; according to the method, the grafting precision is smaller than or equal to 0.1 mm, the total cost of the double cameras is reduced, the manual workload is reduced, the problems that according to an existing scheme, coverage and precision are contradictory, cost is high, and automation is low are solved, and the method is suitable for large-format 3D printing local grafting scenes.

The invention relates to the technical field of stereo projection, and provides a rotary liquid spraying 3D stereo projection method, device and system, and the device comprises a rotary liquid spraying module, a projection module and a control module. According to the specific working mode, the rotary liquid spraying module sprays a liquid level and sends a rotation position signal to the control module, so that the rotation angle corresponding to the current liquid level is determined, and the control module controls the projection module to project an image corresponding to the liquid level at the current rotation angle; within a short time of a rotation period, the projection module continuously switches and projects images corresponding to liquid levels at different rotation angles, which is a complete refresh of 3D stereo projection; by using the persistence of vision, through rapid rotation and projection of an image of a corresponding rotation angle, a 3D image can be viewed from any angle. The technical route is easy to implement, the 3D projection effect is good, and large-format 3D projection can be achieved through array arrangement.

The invention discloses a large-format marking method and system based on a laser galvanometer. The method comprises the steps that machining data are acquired; analyzing according to the processing data, and determining a continuous track in the processing data as a marking stack or a cutting stack; each marking stack and each cutting stack are respectively determined as a machining area, and each machining area is sequentially machined through a galvanometer system; in the machining process, the geometric error delta E of the adjacent machining areas is calculated based on the machining sequence, and the machining coordinates of all the machining areas are corrected through the geometric error delta E. The invention provides a dynamic optimization technology integrating error pre-compensation of forced splicing and intelligent splicing, and high precision, high efficiency and strong robustness of large-format laser processing are realized.

The application discloses a bending machine deformation detection mechanism and method, which comprises a deformation sensor and a control system; the bending machine comprises a lower side plate and a slider located directly above the lower side plate, and the height of the slider can be lowered; a deformation proportionality coefficient K is built in the control system; wherein the deformation proportionality coefficient K is the ratio of the elastic deformation A of the slider to the elastic deformation B of the lower side plate; the deformation sensor is arranged on the lower side plate or the slider and can be used for detecting the elastic deformation of the lower side plate or the slider. The application can realize real-time detection of bending deformation while saving cost. Especially when bending a large-format thick plate, the bending precision of the plate can be improved, and the waste of the plate can be reduced. Especially when the application is equipped with the function of an intelligent bending production line, closed-loop real-time intelligent automatic control can be realized. Further, the application can calculate and compensate the initial deviation of the upper and lower dies, so that the installation and debugging are more convenient.

The utility model relates to the technical field of optical devices, in particular to a shutter assembly and a slit type large-format scanning camera, the shutter assembly comprises a film box, a slit scanning mechanism and a linear driving mechanism, and a photosensitive component is arranged in the film box; the gap scanning mechanism comprises a bearing part and a rigid insertion sheet; the bearing part is in guide fit with the film box; the rigid insertion sheet is inserted into the film box, two ends of the rigid insertion sheet are fixed on the bearing component, and a gap is formed in the rigid insertion sheet; the linear driving mechanism comprises a supporting part, a driving part and a transmission part, and the driving part is arranged on the supporting part; the transmission part is arranged on the supporting part and is in transmission fit with the driving part, and the transmission part is connected with the bearing part. According to the utility model, the driving part and the transmission part in the linear driving mechanism are matched to realize the rapid and slow linear motion of the bearing part, so as to drive the rigid insertion sheet to stably scan the photosensitive part and ensure that the light is irradiated on the photosensitive part in an accurate slit form, and the high-quality and high-resolution imaging effect can be obtained.

The application belongs to the technical field of precision laser processing, and specifically discloses a laser micro-drilling and cutting device and method for a metal foil lead frame, which comprises a processing platform, a clamp, a three-axis motion system, a scanning galvanometer and an ultraviolet nanosecond pulse laser. The clamp applies a pre-tension to the metal foil through a screw rod mechanism and integrates a laser displacement sensor to monitor thermal deformation in real time. The three-axis motion system and the scanning galvanometer cooperate to realize three-dimensional accurate positioning, and a reflection system dynamically regulated by multiple mirrors is combined to ensure that the laser is vertically incident. The method comprises clamping and focusing, image processing and path planning, multi-directional scanning processing and post-processing. The application solves the problems of thermal deformation suppression and micron-level feature accuracy maintenance in large-format processing through optical-mechanical coupling multi-axis linkage control, has the advantages of high precision, environmental protection and high efficiency, and is suitable for the preparation of ultra-thin metal foil lead frames.

The application provides a laser etching device and method for large-format and large-size samples, and aims to solve the technical problem that the laser processing mode of linkage of the fast axis and the slow axis of the existing galvanometer causes the non-uniform processing speed of different pattern segments due to the speed difference of the fast axis and the slow axis, and forms the splicing trace with inconsistent response speed when facing complex filled patterns. The laser etching method for large-format and large-size samples provided by the application is realized by the laser etching device for large-format and large-size samples composed of a laser scanning part, a sample movement part, a bracket and a controller, and the method of combining "trajectory decomposition + multi-layer filling" is adopted to realize the laser etching processing without splicing traces, thereby avoiding the splicing trace problem caused by the inconsistent speed response of the traditional linkage system of the fast axis and the slow axis, and ensuring the reliability and consistency of the large-area etching processing.

The application discloses a large-format cross-scale adhesive film defect detection method and device. The method comprises the following steps: rough focusing of a camera and capturing an adhesive film image, rough scanning of the adhesive film image and extraction of information of printed graphics in the adhesive film image by using an image difference method, input of an output differential image into an anchor frame algorithm, input of output fine scanning target region coordinates into a genetic algorithm, combination of motor S-curve planning characteristics to output an optimized fine scanning path; driving a motion platform to complete path execution by using a double-shaft linkage control combined with the fine scanning path, focusing of the camera during path execution, collection of high-resolution images of defect regions and registration, image stitching and fusion of the registered images by using an optimal seam line algorithm combined with an improved Laplacian pyramid fusion method, and defect detection on the complete adhesive film image after fusion. The application has high stitching accuracy, fast processing efficiency, and can effectively retain more detailed information.

The utility model discloses a connecting mechanism for a large-format scanner, which comprises a scanner upper frame body, a scanner upper frame bottom plate, a fixed connecting assembly and a movable connecting assembly, and the scanner upper frame body and the scanner upper frame bottom plate are made of different materials. And the scanner upper frame bottom plate is movably connected with the scanner upper frame body through a group of fixed connecting assemblies and a plurality of groups of movable connecting assemblies. By means of the mode, according to the connecting mechanism for the large-format scanner, the fixed connecting assembly and the movable connecting assembly are matched with each other, so that when products are transported, stored and used under different temperature conditions, the products are convenient to transport, store and use, and the working efficiency is improved. The problem of deformation of product parts caused by internal stress due to different length changes of different materials during thermal expansion and cold contraction can be reduced or avoided, the product quality and the functional effectiveness and stability are greatly improved while the stability of the overall structure of the product is guaranteed, disassembly and assembly are convenient, and the working efficiency is improved.

The utility model provides a large-format glass laser cutting machine, which relates to the technical field of glass cutting and comprises a frame body, a cutting moving mechanism and a laser component are arranged on the frame body, and the laser component comprises a laser cutting head. The cutting moving mechanism comprises an X-axis linear motor movement module, the X-axis linear motor movement module is connected with a Z-axis servo motor movement module in a sliding mode, the laser cutting head is connected to the Z-axis servo motor movement module, and the two ends of the X-axis linear motor movement module are connected with Y-axis linear motor movement modules in a sliding mode. The laser cutting device has the advantages that the laser cutting head is driven by the cutting moving mechanism to be adjusted in the X-axis direction, the Y-axis direction and the Z-axis direction, the adjusting flexibility is high, the laser cutting head can cut various positions, the distances between the belt conveying assemblies are the same, and when large-breadth glass is conveyed, the conveying efficiency is greatly improved. The multiple belt conveying assemblies can support the glass from multiple points, the weight of the glass is evenly shared, and the flatness of the glass in the conveying process is guaranteed.

The present invention relates to the field of laser cutting technology, specifically to a large-format laser bevel cutting device and a method for using the device, comprising a fixed bottom box, a first stabilizing plate and a stabilizing frame fixedly mounted on the top of the fixed bottom box, a second stabilizing plate movably mounted on the top of the fixed bottom box, and a fixing mechanism movably mounted on the side surfaces corresponding to each other of the first and second stabilizing plates. The large-format laser bevel cutting device and method for using the device are configured with a fixing mechanism, and the output shaft of the micro-drive motor drives the connecting rod and the first gear to rotate, and the first gear engages with the second gear to drive the second gear and the internal threaded fixed cylinder to rotate. At the same time, due to the limiting effect of the clamping plate and the limiting protrusion, the threaded push rod is shortened toward the middle portion inside the internal threaded fixed cylinder, so that the clamping plate and the fixing block are gradually brought closer to the outside of the pipe body, and the pipe body is quickly fixed.

The present invention discloses a large-format marking method and system based on a laser galvanometer. The method comprises: acquiring processing data; analyzing the processing data and determining continuous trajectories in the processing data as marking stacks or cutting stacks; defining each marking stack and each cutting stack as a processing area, and sequentially processing each processing area using a galvanometer system; during the processing process, calculating the geometric error ΔE between adjacent processing areas based on the processing sequence, and correcting the processing coordinates of each processing area based on the geometric error ΔE. The present invention provides a dynamic optimization technology that integrates error pre-compensation for forced splicing with intelligent splicing, achieving high precision, high efficiency, and strong robustness in large-format laser processing.

The invention relates to a large-breadth flexible damage sensing material and a preparation method thereof, belongs to the field of intelligent material preparation, and solves the problem that large-scale preparation of the large-breadth flexible damage sensing material is difficult in the prior art. The invention discloses a large-breadth flexible damage sensing material and a preparation method thereof. The large-breadth flexible damage sensing material comprises a flexible substrate layer, a conductive layer and a packaging layer, wherein the conductive layer is superposed on the flexible substrate layer; the packaging layer covers the conductive layer; the conductive layer is made of a laser-engraved polyimide film, a functional laser-induced graphene structure and an auxiliary separation structure which are etched by a laser engraving machine are arranged on the conductive layer, and the auxiliary separation structure comprises a film through hole and an edge cutting line; the large-breadth flexible damage sensing material provided by the invention is high in fineness, stable in performance and capable of meeting large-breadth sensing application, the preparation method of the large-breadth flexible damage sensing material is simple in step and high in preparation efficiency, and the large-breadth flexible damage sensing material which is stable in performance and high in fineness can be prepared in batches.

1. The name of the design product: large-format laser cutting machine protective cover (H4.0). 2. The use of the design product: used in the process of laser cutting protection, to avoid laser damage to the human body, while protecting the internal structure of the cutting machine. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

An overflow recess for assisting in manufacturing a wick and a wick manufacturing method, relating to the technical field of wick manufacturing. The overflow recess comprises a second recess body, a liquid inlet pipe (2-2) and a frame body (1); the liquid inlet pipe (2-2) communicates the outside of the second recess body with the overflow recess; two surfaces of the frame body (1) that are not adjacent to each other are hermetically connected to two surfaces of the second recess body that are not adjacent to each other; gaps are provided between the other two surfaces of the frame body (1) and the other two surfaces of the second recess body; the gaps are used for accommodating a workpiece (2) to be processed when the manufacturing of a wick is assisted; an overflow port is provided on the frame body (1); during manufacturing, by means of coupling between the high-speed movement of a laser galvanometer and the movement of the workpiece (2) and coupling between continuous liquid and air processing, a large-format recess structure can be manufactured, and the recess size is easy to adjust. The design of the overflow recess allows for an one-step wick manufacturing process, and achieves high-surface-quality, highly flexible and efficient processing of a large-aspect-ratio primary recess structure on an ultra-thin metal surface, thereby improving the processing efficiency of multi-stage recess structures.

Devices, materials, and compositions of diverting material, and related methods and systems for making same and using same to divert a fluid in an underground formation such as a wellbore. The diverter devices, material, and compositions may be manufactured by various methods, including 3-D printing using a variety of polymers.

The utility model relates to the field of photovoltaic cell panel testing, and discloses a large-breadth assembly PL testing system which comprises a profile frame, two ends of the profile frame are fixedly connected with first linear guide rails, and the top ends of the first linear guide rails are connected with metal plate supporting vertical plates in a front-back sliding mode. A first linear guide rail is fixedly connected to the top end of the metal plate supporting vertical plate, a rectangular groove is formed in the middle of the second linear guide rail, a ruler is fixedly connected to the front end of the second linear guide rail, and the first linear guide rail, the metal plate supporting vertical plate, the second linear guide rail, a Y-axis crank handle and an X-axis lead screw are arranged; the positions of the optical fiber coupling laser and the CCD infrared camera can be adjusted, the operation is simple, and the movable range is not less than 1000 * 1000 mm.

The present invention discloses a high-speed motion control method applied to a phase modulation workbench of an LCOS system, which includes dividing a large-format processing pattern into several pattern blocks, generating two-dimensional physical coordinates and pattern block numbers corresponding to each pattern block, and sorting the two-dimensional physical coordinate set in the position file in ascending order row by row or column by column; the motion controller uploads the data row by row or column by column to the memory of the motion controller in sequence, and uploads the sub-bitmaps corresponding to the pattern block numbers to the memory of the LCOS board row by row or column by column; the workbench scanning axis triggers a timing pulse signal by position, and simultaneously sends it to the LCOS and the pulsed light source to form a fast pulse scanning exposure. The present invention utilizes the characteristics of high pulse laser energy, short pulse width, and high repetition frequency, and realizes single-frame polarization pattern recording based on multiple pulses. For the precise control of the motion of the workbench, it has achieved the advantages of large exposure area, high efficiency, and good reliability.

The application provides a large-format PCB panel accurate positioning method with repeated elements, which comprises nine-point calibration, initialization of industrial camera parameters, combination of pyramid downsampling and Hough circle detection for coarse positioning of Mark points and sub-pixel level accurate positioning of the algorithm for circle detection by using a caliper for positioning of two Mark points of the upper left and the lower right, conversion of the coordinates of the point set in the DXF coordinate system into pulse coordinates, conversion into pixel coordinates of the pixel coordinates of the component coordinate point set by combining the shot position information, and removal of repeated component coordinate information on the left and right adjacent FOVs through a KNN algorithm, so that high-accuracy, high-precision and strong-adaptive rapid positioning detection is realized, and each component on different PCB products can be accurately positioned and detected quickly and accurately, and the efficiency of electronic component defect detection in the PCB panel is greatly improved.

This application provides a multi-grayscale mask continuous molding method, comprising: slicing a 3D model into equal-thickness slices, then dividing them according to a projection device splicing mode; eliminating seams at the splicing points using an edge energy homogenization method; exposing the segmented unit mask images onto the resin surface in a combined splicing projection manner according to the curing sequence; controlling the ultraviolet light during the projection process using an optimal grayscale modulation formula during the curing process of each slice to complete single-layer curing. For resin slurries with good fluidity, the multi-grayscale mask continuous molding scheme of this application can complete the continuous molding of large-format 3D models with high quality, resulting in good surface quality and high molding accuracy. For ceramic slurries with poor fluidity, compared with the traditional CLIP-prepared 3D models, the model size is increased while maintaining the advantages of high molding accuracy and fast printing speed of CLIP, indicating that this scheme has high practical application value.

This invention discloses a scanning 3D printing method, relating to the field of 3D printer technology, comprising: converting a sliced ​​image into a vector image, and then rasterizing it into a finer bitmap image according to a specified precision; achieving a smaller grid precision by tilting the DMD; exposing sliced ​​images with a vertical dimension far exceeding the DMD's width by scrolling image flipping; obtaining the energy conversion rate curve of the laser corresponding to each exposure lens through laser energy calibration, and ensuring that the light output power of each lens remains consistent based on this curve; adjusting the angle magnification of the exposure lenses to ensure that the angle and magnification of the lenses to be stitched meet the precision requirements; observing the stitching status by projecting a pre-designed stitching image, and fine-tuning the lens position if the requirements are not met; this invention can perform large-format 3D printing, improve printing precision and the smoothness of the printed object's edges, and solve printing defects caused by distortion and uneven light field of large-format projection lenses.

The invention discloses a short-range large-breadth square uniform beam laser spot acquisition method and device, and the method comprises the steps: carrying out the uniform beam shaping of a laser beam through a uniform beam assembly, obtaining a laser spot with the uniform light field distribution, and expanding the laser spot with the uniform light field distribution into a two-dimensional large-breadth square uniform light spot through the combination of a focusing lens and an XY two-dimensional beam expander. The two-dimensional large-breadth square uniform light spots are used for direct irradiation to realize close-range heating drying and material modification, or multiple groups of two-dimensional large-breadth square uniform light spots can be further spliced to obtain irradiation heating light spots with larger breadth.

Systems, methods, and apparatus for attaching additive manufactured components. The systems, methods, and apparatus include large format additive manufacturing (LFAM) component having a LFAM interior surface. The first FDM component may be coupled a large format additive manufacturing (LFAM) component having a LFAM interior surface. The first exterior surface may have a first textured shape that is complementary to the LFAM textured shape. The systems, methods, and apparatus include a second fused deposition modeling (FDM) component having a second exterior surface. The second FDM component may be coupled to the first FDM component.

The present disclosure relates to a method for manufacturing a panel (1), in particular a wallboard, ceiling, furniture or floor panel, by a synchronous embossing process, comprising the steps of: providing a carrier (10); providing decorative paper (20) with a decorative pattern (21); providing a pressing device with an embossing structure; wherein, in the production of a decorative paper having a decorative pattern and / or a pressing device having an embossed structure, a dimensional change of the decorative paper and / or the pressing device during the production of the sheet material is taken into account.

The invention discloses a material supporting device and an exposure machine, the material supporting device comprises a supporting mechanism, the supporting mechanism comprises a material supporting base and a material supporting slide block, the material supporting base is recessed inwards from the top surface of the material supporting base to form a containing groove, the containing groove comprises an inlet and outlet located at the top, the material supporting slide block is movably connected with the material supporting base, and the material supporting slide block is movably connected with the material supporting base; the door is suitable for moving to a first position for closing the entrance and exit or a second position for avoiding the entrance and exit; the material supporting wheel is movably accommodated in the accommodating groove; the driving structure is suitable for driving the material supporting sliding block to move to a first position or a second position and driving the material supporting wheel to ascend and descend in the vertical direction; when the material supporting sliding block is located at the first position, the material supporting wheel is contained in the containing groove. And when the material supporting sliding block is located at the second position, the material supporting wheel can stretch out of the inlet and outlet in the vertical direction. By adopting the structure, the exposure machine can be conveniently suitable for large-breadth roll materials, the working efficiency is improved, and the cost is saved.

The present invention relates to an ultra-large-format ultraviolet laser telecentric lens, which includes a lens barrel and lenses installed in the lens barrel. The lenses are arranged in sequence from the object side to the image side along the optical axis as a first biconcave lens, a second meniscus lens, a third meniscus lens, a fourth biconvex lens, and a fifth plano-convex lens. The focal length f1 of the first biconcave lens and the total focal length f of the telecentric lens satisfy the relational expression: -1.8 < f1 / f < -2.0; the focal length f2 of the second meniscus lens and the total focal length f of the telecentric lens satisfy the relational expression: -2.0 < f2 / f < -3.0; the focal length f3 of the third meniscus lens and the total focal length f of the telecentric lens satisfy the relational expression: +1.6 < f3 / f < +2.2; the focal length f4 of the fourth biconvex lens and the total focal length f of the telecentric lens satisfy the relational expression: +3.1 < f4 / f < +3.3; the focal length f5 of the fifth plano-convex lens and the total focal length f of the telecentric lens satisfy the relational expression: +2.5 < f5 / f < +2.7. The present invention has a wavelength of 355 nm and a total focal length of 300 mm, and this telecentric lens can achieve the focusing of a laser beam perpendicular to the working surface.