1321 results about "Paper cut" patented technology

The invention belongs to the technical field of computers, particularly relates to an AIGC paper-cut generation system and method based on culture gene multi-modal constraints, and solves the dual problems of'culture distortion 'and'physically unachievable' of a traditional AIGC generation result through mathematical fusion (such as a mixed integer programming model) of semantic, topology and process three-level constraints. The improved ControlNet architecture realizes directional fusion of culture gene coding vectors through a culture attention mechanism, and dynamically adjusts feature weights in a generation process, so that the generation precision of pattern details is improved to a submillimeter level; based on the combination of an interactive correction tool and an inverse diffusion inversion algorithm, the modification of a local pattern by a user can be quickly fed back to a system, and a'creativity-generation-optimization 'closed loop is realized.

The invention relates to the technical field of medical instruments, in particular to a nicking instrument based on a paper-cut structure, which comprises a destressing sleeve and a catheter seat, and further comprises a pushing section, a metal tube and a hollow head, the right end of the destressing sleeve is connected with the catheter seat, the pushing section is mounted at the left end of the destressing sleeve, and the other end of the pushing section is connected with the metal tube; the pushing section and the metal tube are coaxially connected, a PTA balloon penetrates through the catheter base, the stress relieving sleeve and the pushing section and enters the metal tube after penetrating through the pushing section, the PTA balloon is embedded in the metal tube, the tail end of the metal tube is connected with a bullet-shaped hollow head, when the PTA balloon is full, the surface of the cut metal tube begins to expand, and when the surface of the cut metal tube is expanded, the surface of the cut metal tube is expanded. When the surface of the metal tube expands to a certain degree, the expansion process of the metal tube cannot be continued due to the limitation of the included angle of the rhombus, at the moment, the continuous expansion force of the PTA balloon enables the node of the cutting section to drive the connecting rod to overturn together, and the overturned connecting rod can apply circumferential force to the narrow part of the blood vessel.

The invention relates to the technical field of flexible piezoelectric sensors, and discloses a wide-working-condition multi-dimensional force representation flexible film piezoelectric sensor and a signal analysis method, after a pvdf piezoelectric film is cut in a paper-cut mode, regionalized electrode coating and covering are carried out, and multi-channel signal output is achieved. Therefore, characterization of multi-dimensional force can be realized on one film sensor, and meanwhile, the tension and conformal capability of the sensor are enhanced through the paper-cut design, so that the attachment requirement of a complex surface is met. A multi-layer composite structure is combined and comprises a flexible polymer protection layer and a flexible connection layer, and high sensitivity, excellent tensile property and mechanical durability are achieved through hot pressing and local ultrasonic welding. The sensing capability is enhanced, and the defect of poor tensile property of a traditional PVDF piezoelectric sensor is overcome. The preparation method is simple in process, low in cost and suitable for large-scale industrial production. In addition, the invention provides a deep learning analysis method for multi-channel signals, and classification and nonlinear fitting can be realized.

The invention relates to a flexible two-dimensional strain and pressure composite sensor and a preparation method and application of the flexible two-dimensional strain and pressure composite sensor. The two-dimensional sensing unit comprises a first flexible substrate, and a first sensing layer, an isolation layer, a second sensing layer and a first packaging layer which are sequentially stacked on the first flexible substrate, the first sensing layer and the second sensing layer are arranged in a staggered manner, and the two-dimensional sensing unit comprises a first part and a second part; the elastic modulus of the first part is greater than that of the second part, and the elastic modulus difference is greater than or equal to 160MPa; the pressure sensing unit is arranged on the two-dimensional sensing unit, the third part corresponds to the first part, and the fourth part is of a paper-cut structure. The flexible two-dimensional strain and pressure composite sensor can monitor the strain in the two-dimensional direction in the plane and the pressure in the vertical direction of the plane at the same time, the sub-sensors work independently and do not interfere with one another, the sensitivity is high, and the monitoring accuracy is high.

The utility model is suitable for the technical field of paper cutting machines, and provides an automatic paper cutting machine which is provided with a disc, a stepping motor and three pushing pieces, when multi-face cutting is carried out on paper, the stepping motor drives the disc to rotate, conversion of paper cutting faces can be automatically achieved, and when the three pushing pieces are driven to push towards the paper direction, the paper cutting faces can be automatically switched. The pushing pieces on the two sides of the paper can guarantee that the paper is stacked in order, the pushing piece on the side away from the cutting mechanism can push the paper to approach the cutting mechanism, paper cutting is achieved, the whole cutting process does not need manual assistance, the labor intensity of workers is reduced, and meanwhile the paper cutting efficiency is improved.

The invention relates to the technical field of motor manufacturing equipment. The invention discloses a slot insulation paper cutting device which comprises a base, a slot insulation paper laser cutting module, a smoke purifier, a paper feeding and pushing module and a tension paper feeding module are integrated on the base, the slot insulation paper laser cutting module is arranged on the downstream of the tension paper feeding module, and the smoke purifier is arranged above the slot insulation paper laser cutting module; the tension paper feeding module is used for providing stable conveying of slot insulation paper; the groove insulation paper laser cutting module is used for carrying out laser cutting and printing processing on groove insulation paper; the paper feeding and pushing module is used for pushing the groove insulation paper from the tension paper feeding module to the groove insulation paper laser cutting module; the smoke purifier is used for collecting smoke generated in the cutting process. The method has the beneficial effects that 1, high-precision laser cutting and dynamic compensation are achieved, specifically, a special laser cutting module for slot insulation paper is adopted, the cutting focal length of a laser head is adjusted through a hand-cranking wheel, a cutting path is preset according to the slot type unfolding shape of the skewed slot stator, the cutting path is dynamically adjusted, the technology that cutting printing is not cut through is supported, the burr problem of cutting of a traditional cutter is avoided, and the production efficiency is improved; in combination with the tension control of a servo motor paper feeding servo motor and a tension paper feeding module, the cutting precision is ensured to be + / -0.05 mm; 2, an environment-friendly smoke purification system is adopted, a smoke purifier is integrated at the top of equipment, harmful smoke generated in the laser cutting process is collected in real time, the workshop environment is improved, and the environment-friendly requirement is met;

The utility model discloses a paper shearing machine for paper product printing, which belongs to the technical field of paper product cutting and comprises a mounting bottom plate, supporting legs, a connecting vertical plate, a top frame, a mounting cross beam and a cutting component. A downward pressing air cylinder extends and retracts to enable a moving plate to move up and down so that a double-edge pointed-end tool can penetrate through paper, the moving plate can be prevented from rotating through a sliding limiting rod, a driving motor rotates to drive an adjusting screw to rotate, and therefore a sliding block can transversely move in a sliding groove; according to the paper cutting device, the double-edge pointed-end cutter can transversely move to cut paper, so that no notch is formed in the cutting position, the pressing plate can press the paper before cutting, and the double-edge pointed-end cutter can fix the paper before being inserted into the paper through the elastic force of the sliding rod; and cutting position deviation caused by the fact that the paper is not fixed when the double-edge pointed-end cutter penetrates through the paper is avoided.

The invention discloses a multi-slot synchronous paper inserting device for a new energy flat wire motor. According to the technical scheme, the multi-slot synchronous paper inserting device is characterized by comprising a positioning rotating mechanism; the paper unwinding mechanism is used for unwinding the paper roll; the pre-folding mechanism is used for carrying out indentation on the insulation paper unwound by the paper unwinding mechanism at the position where the insulation paper needs to be folded; the forming mechanism is used for carrying out folding forming on the pre-folded insulation paper; the paper cutting mechanism is used for cutting off the insulating paper formed by the forming mechanism and the unformed insulating paper; the paper inserting mechanism is used for pushing the formed insulation paper on the forming mechanism to be upwards inserted into the stator of the positioning rotating mechanism; through the arrangement of the forming mechanism and the paper inserting mechanism, insulation paper can be automatically folded, formed and inserted into a stator, manual paper inserting is not needed, manpower is saved, and the paper inserting efficiency and quality are improved.

The utility model relates to the technical field of paper cutting machines, and discloses a paper cutting machine with a paper toppling prevention function, which comprises a processing table, the surface of the processing table is fixedly connected with a paper cutting machine body, the top of the processing table is fixedly connected with an air cylinder through a bolt, and one end of the air cylinder is fixedly connected with a cutting frame. The side wall of an inner cavity of the cutting frame is slidably connected with the surface of the machining table, a one-way threaded rod and a sliding rod are arranged in two sets of sliding grooves correspondingly, a fixing piece is arranged on one side of a sliding block, and a braking piece is arranged on the side, away from the sliding block, of the fixing piece. Through cooperative use of the braking piece, the fixing piece and other related assemblies, the whole structure is simple, operation and use are easy and convenient, paper of different sizes can be aligned to be rapidly supported and fixed, and the paper is stably conveyed to the cutting area position to complete cutting machining of the paper; and correspondingly, the cutting machining precision and efficiency of the aligned paper can be effectively improved.

The utility model relates to a glass spacing paper laying system, which comprises a paper laying mechanism, a paper cutting mechanism and a paper feeding mechanism, the paper laying mechanism comprises a paper laying base, an unwinding assembly, a paper cutting assembly and a paper feeding assembly, the unwinding assembly, the paper cutting assembly and the paper feeding assembly are all arranged on the paper laying base, and the paper feeding assembly is positioned between the paper cutting assembly and the unwinding assembly; the paper feeding assembly is matched with the unwinding assembly to synchronously unwind and discharge paper; the paper cutting assembly is used for cutting glass spacing paper; a mesa assembly; the clamping jaw assembly is used for clamping the end of the glass spacing paper from the paper laying mechanism, the traction mechanism is used for driving the clamping jaw assembly to move front and back in the traction direction so as to pull the glass spacing paper to cover the table top, and the unwinding assembly, the paper feeding assembly and the traction mechanism act synchronously in the traction process; and the paper pressing mechanism is used for fixing the glass spacing paper in the paper cutting process and passing through the glass spacing paper in the traction process. The glass spacing paper laying system is high in paper laying efficiency and small in occupied space.

The invention discloses a porous metamaterial energy absorption device based on a paper folding and cutting forming process, which is prepared by adopting the paper folding and cutting forming process and comprises tetrakaidecahedron units which are arranged in a staggered manner, each tetrakaidecahedron unit comprises two square surfaces, four upper regular hexagonal surfaces and four lower regular hexagonal surfaces, wherein the two square surfaces are oppositely arranged up and down; the four upper regular hexagonal surfaces share the same edge with the upper square surfaces and are obliquely arranged downwards; the four lower regular hexagonal surfaces share the same edge with the lower square surfaces and are obliquely arranged upwards; and the four square hollow surfaces are formed after the upper regular hexagonal surfaces and the lower regular hexagonal surfaces are in butt joint. By utilizing the characteristic of flexible design of a paper folding and cutting technology, the preparation of converting a three-dimensional structure into a two-dimensional plane structure is more beneficial to precision control, the cost is greatly reduced, and meanwhile, the precision control is improved; by analyzing a deformation mechanism and deducing a function relational expression between structural energy absorption efficiency and structural parameters, structural optimization design with a controllable energy absorption effect is achieved, and the porous metamaterial energy absorption device meeting different requirements is obtained.

The utility model provides a corrugated paper cutting device for corrugated paper box production, including: a base and a fixed frame, the upper surface of the base is fixedly connected to a positioning plate and a fixed frame respectively, and a through hole is symmetrically provided on the surface of the fixed plate, a main buffer rod is slidably connected in the through hole through a spring, and one end of the main buffer rod is fixedly connected to the buffer plate, the surface of the buffer plate is symmetrically connected to a limit block, the upper surface of the fixed frame is fixedly connected to a hydraulic cylinder, the telescopic rod of the hydraulic cylinder is fixedly connected to a mounting plate, a mounting groove is provided in the middle of the lower surface of the mounting plate, and a cutting knife is fixedly connected in the mounting groove through a fastening bolt, and guide grooves are symmetrically provided on both sides of the upper surface of the mounting plate. The utility model enables the cutting device to quickly cut corrugated paper through the cooperation of the fixed frame, the hydraulic cylinder, the mounting plate, the cutting knife, the auxiliary buffer rod and the pressing plate, and also can prevent the debris generated during the corrugated paper cutting process from interfering with the cutting of the cutting knife.

The invention relates to a stretchable electrode and a preparation method and application thereof.The stretchable electrode comprises a first flexible nanofiber layer, a liquid metal layer and a second flexible nanofiber layer, the liquid metal layer and the second flexible nanofiber layer are sequentially stacked on the surface of the first flexible nanofiber layer, the stretchable electrode is of a paper-cut structure, adhesive soft gel is arranged at nodes of the paper-cut structure, and the liquid metal layer and the second flexible nanofiber layer are sequentially stacked on the surface of the first flexible nanofiber layer. And the adhesive soft gel is embedded in the surface of the second flexible nanofiber layer. The stretchable electrode has excellent stretchability, flexibility and adhesion, can be firmly attached to the surfaces of objects in various irregular shapes in a conformal mode and move along with the objects, the conductive stability of the stretchable electrode is guaranteed, meanwhile, the preparation method is simple, and the manufacturing cost is low.

The gift box structure convenient to fold comprises a gift box body, a paper cutting assembly is arranged on the outer side of the gift box body, the paper cutting assembly is connected between a bottom plate and a base, the bottom plate is rotationally connected with one end of the base, the bottom plate makes contact with an outer supporting platform in a horizontal separation mode, and the base is fixed to the bottom end of the gift box body. The paper-cut assembly comprises a first paper-cut, a third paper-cut and a second paper-cut which are arranged in sequence, the second paper-cut is arranged close to the gift box body, and the first paper-cut and the third paper-cut are arranged on the outer side of the second paper-cut; and the bottom ends of the first paper-cut, the third paper-cut and the second paper-cut are movably connected to the bottom plate. According to the gift box structure convenient to fold, the appearance pattern of the gift box is dynamically designed, the sales volume of products can be increased, and the artistic diversity and commercial value of the gift box are increased.

The invention discloses a Chinese traditional paper-cut art classification method based on multi-dimensional feature clustering analysis, and relates to the field of intangible cultural heritage digital protection. Paper-cut morphological features and calculation technique features are obtained through image processing, and expert scoring system quantification semantic features are constructed; k-prototypes clustering is improved by using a genetic algorithm, and a weight group is optimized and combined to design a hybrid distance metric function; constructing a form-content-value three-dimensional mutual construction model which comprises a form layer of technique complexity grading, a content layer of a cultural symbol association graph and a value layer of a design rule base; a feature database dynamic update interface is developed, a GAN (Generative Adversarial Network) is integrated to realize cultural and creative design, an online cultural semantic analysis engine is constructed, paper-cut multivariate feature quantitative analysis is realized, non-perpetual digital protection and cultural and creative innovation are promoted, and the method can be expanded to other fields.

The invention relates to a preparation method of an interskeletal fitting type stretchable knee pressure testing gasket, and belongs to the field of biomechanical measurement. According to the knee pressure testing gasket, the unique paper-cut conformal design is adopted, and the shape and the notch are specially designed, so that the gasket can be flexibly stretched during installation and perfectly fit the bone contour of a patient. By means of the design, the measurement precision and reliability are greatly improved, and guarantee is provided for the success rate of an operation. The method for designing the knee pressure measuring gasket in the operation through the paper-cut (Kirgami) conformal technology is an innovative method, and the fitness and flexibility of the gasket can be improved. According to the paper-cut technology, a structure capable of being unfolded and bent is formed through precise cutting in materials, and therefore the materials can better adapt to complex shapes. And finally, preparing the interosseous fitting type stretchable knee pressure testing gasket by combining paper-cut design with femtosecond laser-induced carbonization processing.

The invention discloses a paper-cut image generation method and system based on Stable Diffusion, a medium and equipment. The system comprises a data acquisition module, a cutting and marking module, a model training module, a model deployment module, a screen module and an adjustment module which are in communication connection. The method comprises the steps of obtaining a paper-cut image data set; cutting and marking each picture in the paper-cut pattern data set in sequence; training a text and graph generation network model by using the cut and marked paper-cut picture data set to obtain a trained paper-cut image generation network model; the trained paper-cut image generation network model is deployed to ConfyUI workflow, and the ConfyUI workflow is utilized to generate the target paper-cut image according to the text description, so that the paper-cut design efficiency can be improved, the design threshold is reduced, and the inheritance and innovative development of non-abandoned paper-cut art are promoted.

The utility model provides a paper cutter with a single cutter structure, which comprises a paper cutter shell, a controller component, a paper feeding component and a paper cutting mechanism are arranged in the paper cutter shell, a paper inlet and a paper outlet are arranged on the paper cutter shell, and the paper cutting mechanism comprises a paper pressing component, a paper support component and a cutter component. The paper pressing assembly is arranged above the cutter assembly and the paper supporting assembly, a paper cutter is arranged on the cutter assembly, a puncturing part is arranged on the paper cutter, and puncturing teeth are arranged on the puncturing part. The paper cutting machine has the beneficial effects that the problems that in the prior art, a paper cutting machine adopts a double-cutter paper cutting mode, the use cost is high, the matching precision is high, and the service life is short can be solved, by using the product structure, the paper pressing assembly is matched with the paper supporting assembly to fix paper, then the paper is stabbed and broken through the paper cutter, the paper is cut through dynamic and static combination, and the paper cutting efficiency is improved. And the paper cutter is only in contact with the paper, so that the service life of the paper cutter is effectively prolonged, the production cost is reduced, the use experience of a user is improved, and the competitiveness of an enterprise is favorably improved.

Embodiments of the present application disclose an integrated paper and adhesive tape cutting device, including a housing, where the housing includes a paper cutting housing and a paper separating housing; a component for pulling out paper from a paper roll inside a paper separating component for cutting is arranged below the paper cutting housing; and a cutting device is arranged on an outer wall of the housing to cut an adhesive tape.

The invention discloses a pattern generation and development integration method for paper-cut cultural and creative products, which comprises the following steps of: performing input acquisition and semantic prompt generation, and constructing a semantic vector by using an NLP (Network Length Polymorphism) and a paper-cut style template; generating a paper-cut style pattern based on the transformed model; extracting a contour and optimizing a structure through algorithms such as edge detection and binarization, and outputting a vector format; matching a text and creation product template, and recommending materials and colors; a user is supported to feed back local modification; the method can solve the problems that traditional paper-cut creation is low in efficiency, difficult to industrialize and the like, and has the technical advantages that creation efficiency and style diversity are improved, non-abandoned paper-cut cultural creation industrialization adaptability is enhanced, cultural inheritance and innovation are promoted, and the method is suitable for digital development and industrial conversion of paper-cut cultural creation products.

The utility model relates to the technical field of paper cutting knives, in particular to a paper cutting knife with a blade capable of being replaced quickly, when a push button assembly moves to an unlocking position, the push button assembly jacks up a blade frame to an avoiding position to enable the blade to be separated from the blade frame, and at the moment, the blade can be taken out; when the push button assembly leaves the unlocking position, the blade frame is reset; when the push button assembly drives the blade frame to move to the end far away from the unlocking position, the blade cover assembly pushes the other blade to automatically complement the position and be connected with the blade frame in a clamped mode. In order to solve the problem of low blade replacement efficiency, the utility model provides the paper cutter capable of quickly replacing the blade, the paper cutter has a blade storage function, the blade can be replaced without other extra tools, the blade replacement efficiency can be improved, and the safety in the blade replacement process can be ensured.

The utility model discloses a paper breaking structure and a bubble pressing machine comprising the same, the paper breaking structure comprises a conveying and clamping device, an upper bubble pressing roller, a lower bubble pressing roller, a first driving device and a second driving device, the conveying and clamping device can clamp paper materials and convey the paper materials in the downstream direction; the upper bubble pressing roller and the lower bubble pressing roller can be used for carrying out impressing forming on paper materials and conveying the paper materials in the downstream direction, and the upper bubble pressing roller is located in the downstream direction of the conveying and clamping device. According to the paper breaking structure and the bubble pressing machine, a cutter does not need to be adopted for paper breaking operation of paper, harm of the cutter to people does not need to be considered in the installation, maintenance and adjustment process, the safety coefficient is greatly improved, in addition, the conveying clamping device can be driven by one driving component, and the paper breaking operation is convenient. The upper bubble pressing roller and the lower bubble pressing roller can be driven by the other driving component, and compared with an existing paper pad machine for producing the wrinkled V-shaped buffer paper, no extra power source is added.

The present invention is a rolled paper cutting device and method which safely and easily cuts a variable length sheet of paper from rolled paper, including an adjustable holder for controlling the rolled paper, and a paper cutting blade embedded within a safety slot, the safety slot protecting a user from a blade related injury.

The utility model discloses automatic Swiss roll cutting and paper inserting equipment, and relates to the technical field of cake production equipment. The conveying belt is mounted on the main frame; the cutting plate is erected on the main frame and is provided with a cutting hole; the mounting plate is erected on the main frame; the first motor is mounted on the mounting plate, the rotating shaft is provided with a fluctuating wheel, the outer side of the fluctuating wheel is rotatably connected with a fluctuating rod, the fluctuating rod is rotatably connected with a sliding plate, and the sliding plate is vertically and slidably connected with the mounting plate; the ultrasonic motor is mounted on the sliding plate, and a cutter is mounted at the bottom end; the paper bracket is erected on the main frame and is used for placing roll paper; the two conveying rollers are rotationally erected on the cutting plate, abut against each other and are driven by a second motor. And the paper cutter is rotationally connected to the cutting plate and is driven by a telescopic cylinder. The paper inserting device has the effect of improving the paper inserting efficiency and the accuracy of the paper inserting position after the Swiss roll is cut.

A paper cutting device characterized in that it comprises at least one paper cutting unit, the paper cutting unit comprising: a paper cutter housing (6), a paper lifting element (50) connected to the paper cutter housing (6), wherein a first end of the paper lifting element (50) is capable of engaging under the paper to be cut, a slot (8, 8a, 8b) arranged between the paper lifting element (50) and the paper cutter housing (6), and a cutting blade (4, 4a, 4b) arranged within the slot (8, 8a, 8b) and near a second end of the paper lifting element (50), wherein the cutting blade (4, 4a, 4b) is configured to cut the paper entering through the slot (8, 8a, 8b).

The present invention belongs to the technical field of paper-cutting teaching tools, and specifically discloses a paper-cutting teaching device and method, including a paper-cutting table, a paper-cutting platform is fixedly provided on the upper side of the paper-cutting table, a platform groove is provided on the inner side of the paper-cutting platform, a display is fixedly installed on the rear side of the paper-cutting platform, a slide rail frame is fixedly installed on the upper end of the paper-cutting platform near the rear side, a device shooting bracket is slidably provided on the slide rail frame, a paper scrap suction component is fixedly provided on one end of the paper-cutting platform, a cleaning component is provided on one side of the paper scrap suction component near the inner side of the platform groove, a driving component is provided on the lower side of the platform groove, a storage drawer is provided on the lower end of the paper-cutting platform away from the driving component, and a control switch is provided on the front end of the paper-cutting platform near the position of the paper scrap suction component. The present invention, through the overall coordinated use, pulls out the shielding cloth to block, and prevents some paper scraps from flying around due to airflow during the process of sucking paper scraps.

The utility model relates to an adjustable printed matter processing paper cutting device which comprises a base, the top of the base is fixedly connected with a supporting seat, the front face of the supporting seat is provided with a cutting groove, and the top of the supporting seat is symmetrically and fixedly connected with air cylinders. The paper cutting device comprises two air cylinders, the output ends of the two air cylinders extend into a cutting groove and are fixedly connected with a connecting plate, the bottoms of the supporting columns are fixedly connected with a pressing plate, and a fixing rod is fixedly connected between every two adjacent supporting columns. According to the paper cutting device, the pressing plates can press and compact paper on the two sides of the cutting knife firstly, the phenomenon that the paper swells due to uneven stress is avoided, small-amplitude deviation of the paper is avoided, the cutting accuracy is ensured, the structure is simple, practicability is high, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.

The invention discloses a paper cutting device and food packaging structure production equipment. The paper cutting device comprises a rack, a receiving mechanism, a cutting mechanism and a conveying mechanism. The material receiving mechanism is movably arranged on the machine frame in the first direction and comprises a plurality of material receiving mold positions arranged in an array mode, and the material receiving mold positions are used for receiving sheet-shaped paper materials. The cutting mechanism is arranged on the machine frame and used for cutting the strip-shaped paper materials into sheet-shaped paper materials matched with the material receiving die positions. The conveying mechanism is arranged on the rack and comprises a plurality of conveying units distributed in the second direction, the second direction is perpendicular to the first direction, in the first direction, each conveying unit is arranged opposite to the corresponding row of material receiving die positions, and the conveying units are used for conveying sheet-shaped paper materials to the corresponding material receiving die positions. According to the feeding device, automatic feeding can be achieved, the production efficiency of products is improved, potential safety hazards of production are reduced, the position accuracy after sheet-shaped paper materials are fed can be improved, the production yield of the products is improved, and the appearance of the products is improved.

The invention discloses an adjustable and controllable paper cutting and folding electromagnetic wave absorbing structure. The wave absorbing structure comprises an upper-layer impedance type fractal paper cutting structure, an impedance type paper folding structure, a lower-layer impedance type fractal paper cutting structure and a reflecting back plate which are sequentially connected from top to bottom. The upper layer impedance type fractal paper-cut structure and the lower layer impedance type fractal paper-cut structure are the same; the upper-layer impedance type fractal paper-cut structure comprises an upper-layer fractal paper-cut structure and a first impedance layer attached to the top surface of the upper-layer fractal paper-cut structure; the bottom surface of the lower-layer fractal paper-cut structure is connected with the top surface of the reflecting back plate; the impedance type paper folding structures are periodically arranged in the transverse direction and the longitudinal direction, and each impedance type paper folding structure comprises a paper folding structure and a second impedance layer attached to the inner side wall face of the paper folding structure; the paper folding structure is driven to be unfolded or folded through antisymmetric cooperative movement of the upper-layer impedance type fractal paper-cut structure and the lower-layer impedance type fractal paper-cut structure. According to the electromagnetic wave-absorbing structure, flexible curved surface conformal, three-dimensional negative Poisson's ratio deformation and bistable effects can be realized, and the electromagnetic wave-absorbing frequency band is expanded.

A label printer with a paper-cutting mechanism includes a force-applying assembly operatively coupled to a paper-cutting assembly. The force-applying assembly receives an applied force and drives the paper-cutting assembly to move. The paper-cutting assembly includes a blade assembly and a paper-pressing assembly operatively coupled together, and an elastic member disposed between the blade assembly and the paper-pressing assembly. The blade assembly is supported by the force-applying assembly, while the paper-pressing assembly moves vertically relative to the blade assembly. The front-back and left-right movements of the paper-pressing assembly are restricted by the blade assembly. The paper-pressing assembly includes a paper-pressing plate and a first positioning pin, with one end of the elastic member connected to the first positioning pin. The blade assembly includes a blade and a blade holder with a second positioning pin. The other end of the elastic member is connected to the second positioning pin.