103 results about "Full width" patented technology

The invention discloses a deep learning-based machining surface plastic deformation measurement method and system, and belongs to the technical field of metal cutting machining. According to the method, a parallel encoder-decoder structure is adopted, and spatial and temporal features and spatial features of a deformed image pair are fully extracted through multi-layer multi-scale convolution contraction and expansion and are used for predicting a deformation field. A double-attention mechanism module is introduced, position and channel characteristics are combined more effectively, efficient and high-precision measurement of a material deformation field is achieved, and a traditional digital image correlation method can be effectively replaced. According to the method, a Boolean model is used for generating an initial speckle capable of approaching a real environment, a simulated deformation image pair is obtained through image distortion, and the availability of a virtual data set is evaluated by using an autocorrelation full width at half maximum, a system error, a random error and an average gray scale gradient; a large number of high-quality data sets for deep learning training are efficiently provided, so that the model is free from limitation of a real data set, and the generalization of the model is improved.

The invention discloses an LIBS (Laser-induced Breakdown Spectroscopy) peak searching method, system and device for adaptive window width symmetric zero area transformation, and belongs to the technical field of laser-induced breakdown spectroscopy element analysis. According to the method, firstly, a spectrum base is deducted through an SNIP method, Savitzky-Golay filtering preprocessing is carried out, then data segments are segmented, the window width is dynamically adjusted by combining the peak resolution, the full width at half peak and the horizontal distance at the maximum slope value, the resolution is improved by using a narrow window in an adjacent peak region, the noise reduction effect is enhanced by using a wide window in a noise or single peak region, and finally symmetric zero area transformation is substituted to complete peak searching. Experiments show that the peak searching accuracy rate of the method reaches 97.4%, the false drop rate is 1.75%, the error compared with an NIST database is smaller than or equal to 0.071 nm, the noise robustness is superior to that of a traditional method, adjacent peaks can be accurately recognized, noise interference can be restrained, and the method is suitable for high-precision LIBS element analysis.

The utility model relates to a rail type bin flattening device which comprises first rails and second rails which are arranged in parallel, a bottom frame and a first driving part are arranged between the first rails on the two sides, a scraping plate seat and a second driving part are arranged on the bottom frame, the second rails are located above the first rails, and bottom layer sliding blocks are arranged on the first rails in a sliding mode. Third rails are fixed to the bottom layer sliding blocks, surface layer sliding blocks are arranged in the third rails in a sliding mode, the bottom frame is installed between the surface layer sliding blocks on the two sides, third driving parts are arranged on the third rails, side edge sliding blocks are arranged on the second rails in a sliding mode, two sets of side edge sliding blocks are arranged on each second rail, and each side edge sliding block comprises a clamping part. And the clamping part is fixed with the third rail. When the height of the grain surface changes, the height of the bottom frame stretching across the full width range of the granary is adjusted, and compared with only lifting of the scraper, the overturning moment borne by the bottom frame is smaller. And the second track can share part of stress of the underframe, so that the stability and the safety coefficient of the utility model are further improved.

The invention provides lighting system for illuminating a target surface in an agricultural environment for a flock of birds, wherein the lighting system comprises a plurality of lighting devices spaced apart on an elongated axis, wherein each lighting device comprises: a connector for electrically connecting the lighting device to a power line; a housing comprising a light exit window; at least one solid-state light source arranged within the housing, wherein the at least one solid-state light source is configured to emit light source light; wherein each lighting device is configured to shape the light source light into a light beam, and configured to emit the light beam along a main optical axis via the light exit window onto the target surface; wherein adjacent lighting devices of the plurality of lighting devices are spaced apart with a spacing (S); and wherein the light exit windows of the adjacent lighting devices are arranged at a distance (H) from the target surface; wherein each respective light beam of the adjacent lighting devices has an angular light distribution with a Full Width Half Maximum (FWHM); whereinFWHM<F*2*tan-1(S2⁢H);wherein FWHM is said Full Width Half Maximum (FWHM); wherein S is said spacing (S); wherein H is said distance (H); and wherein F is a factor in the range between 0.1 and 1.

The invention discloses a linear sensor closed-loop-based deviation rectification system, and relates to the technical field of closed-loop deviation rectification, the linear sensor closed-loop-based deviation rectification system comprises a deviation rectification system, and the deviation rectification system comprises a distributed sensor array, a dynamic cooperative controller, an actuator group, a double-closed-loop control module and a real-time data fusion module which are arranged in the width direction of a deviation-rectified material; the specific system is as follows: the distributed sensor array forms an overlapped detection area through V-shaped staggered layout, and the system has the advantages that through the V-shaped staggered layout of the distributed sensor array, the full width direction of a material is covered, the blind area problem of traditional single-point detection is thoroughly solved, and full-area non-blind-area detection is realized; and in combination with + / -0.01 mm high-precision acquisition of the magnetostrictive sensor and an LMS adaptive filtering algorithm, the comprehensiveness and reliability of offset data are remarkably improved, and accurate input is provided for subsequent control.

The invention discloses a method for measuring the thickness based on laser profile scanning of a 3D wheel of a conveying belt, particularly relates to the field of laser scanning thickness measurement, and is used for solving the problems that shutdown is needed and the measurement range is limited in existing conveying belt thickness detection. According to the method, three-dimensional point cloud data of the upper surface and three-dimensional point cloud data of the lower surface are collected at the same time, initial segmentation of the upper surface and the lower surface is completed through double criteria based on curvature and normal, a dynamic stability threshold value is constructed in combination with the running speed and transverse swing of the conveying belt, and a stable surface point set is formed through screening; then, a thin-plate spline algorithm of dynamic tensor weight is adopted to respectively fit continuous upper surface and lower surface reference curved surface models; and finally, the sampling points on the upper surface are projected to the lower surface along the normal direction and the Euclidean distance is calculated, so that the real thickness distribution of the conveying belt in the full width and full length range is obtained. Non-stop, non-contact and high-coverage online thickness measurement is realized, and the operation safety and maintenance management efficiency of the conveyor belt are improved.

Apparatuses and methods as described herein can be used to grow a Ga2O3 based single crystal using an Edge-defined film fed growth (EFG) method. The single gallium oxide crystal sheet can have a principle plane is offcut from a (100) crystallographic orientation. In one embodiment, the offcut is between 2 and 20 degrees. The single crystal can have a full width half mass of less than 50arcsec.

The invention discloses an automatic detection system for floating roof sealing of a storage tank, and relates to the technical field of sealing detection, and is technically characterized in that the automatic detection system comprises a connecting frame mounted at the top of the storage tank, a lifting mechanism is arranged on the connecting frame, and a horizontal displacement mechanism is arranged below the lifting mechanism; a detection mechanism for detecting the sealing performance is arranged on the movable part of the horizontal displacement mechanism, and the detection mechanism is in signal connection with a wireless transmission module; the sealing detection mechanism comprises a laser distance measuring sensor, an infrared thermal imager and a gas concentration sensor, a certain detection distance is kept between the laser distance measuring sensor and the edge of the floating roof of the storage tank by adjusting the lifting mechanism, and the field angle of the infrared thermal imager covers the full width of a sealing belt of the floating roof of the storage tank; the top sealing performance can be automatically detected, and the efficiency and the reliability are improved.

A display includes a plurality of blue, green, and red light emitting elements having respective blue, green, and red emission spectra including respective blue, green, and red emission peaks at respective blue, green, and red peak wavelengths with respective blue, green, and red full width at half maxima (FWHMs). The display includes a display panel and an optically collimating film. For a substantially collimated incident light and for each of mutually orthogonal polarization states, an optical transmittance of the optically collimating film includes substantially distinct blue, green, and red transmission bands having respective blue, green, and red FWHMs that overlap at least 30% of the respective blue, green, and red FWHMs at a first incident angle of less than about 10 degrees and overlap less than 15% of the respective blue, green, and red FWHMs at a second incident angle of greater than about 30 degrees.

The invention provides a light generating system (1000) configured to generate in a first operational mode of the light generating system (1000) system light (1001), wherein: the system light (1001) in the first operational mode has a spectral power distribution with at least 85% of the spectral power in three emission bands (111,121,131) comprising (i) a first emission band (111) having a centroid wavelength of 445 nm + / −25 nm and having a full width half maximum of at maximum 25 nm, (ii) a second emission band (121) having a centroid wavelength of 541 nm + / −25 nm and having a full width half maximum of at maximum 150 nm, and (iii) a third emission band (131) having a centroid wavelength of 614 nm + / −25 nm and having a full width half maximum of at maximum 25 nm; in the first operational mode the light generating system (1000) is configured to control the spectral power distribution of the system light (1001) in dependence of a radiant flux of the system light (1001) while maintaining a correlated color temperature of the system light (1001) within + / −10% of a predetermined correlated color temperature value; and in the first operational mode the light generating system (1000) is configured to shift a color point (1010) of the system light (1001) towards a lower Duv with decreasing radiant flux of the system light (1001) or to shift the color point (1010) of the system light (1001) towards a higher Duv with increasing the radiant flux of the system light (1001).

Systems and methods for remediating streak in glass ribbons formed from glass forming processes are disclosed. The systems include a laser that produces a stationary laser beam having a wavelength of from about 1 μm to about 12 μm and a beam width less than or equal to a full width half maximum of a change in the thickness of the glass ribbon over a streak width at a streak location and optical components to condition and direct the laser beam at the streak location. The methods include forming the glass ribbon, identifying a streak in the glass ribbon, and directing the laser beam at the streak location. The laser beam heats the glass ribbon at the location of the streak, which reduces a viscosity of the glass ribbon to cause glass thinning that reduces the severity of the streak.

The invention provides a light generating system (1000) comprising a light generating device (100), a first luminescent material (210), a second luminescent material (220), and a third luminescent material (230), wherein: (A) the light generating device (100) is configured to generate device light (101) having a peak wavelength selected from the range of 435-475 nm; wherein the light generating device (100) comprises a solid state light source; (B) the first luminescent material (210) is configured to convert part of the device light (101) into first luminescent material light (211) having a color point with u′ values selected from the range of 0.08-0.17 and v′ values selected from the range of 0.5-0.57; (C) the second luminescent material (220) is configured to convert part of the device light (101) into second luminescent material light (221) having a color point with u′ values selected from the range of 0.32-0.4 and v′ values selected from the range of 0.52-0.58; (D) the third luminescent material (230) is configured to convert part of the device light (101) into third luminescent material light (231); wherein the third luminescent material has a centroid wavelength (λ3c) selected from the range of 620-650 nm and a full width half maximum of 60 nm or smaller; (E) the light generating system (1000) is configured to generate system light (1001) having a (system light) spectral power distribution comprising device light (101), first luminescent material light (211), second luminescent material light (221), and third luminescent material light (231); wherein the (system light) spectral power distribution has a first spectral power (E1p) at a first peak maximum (λ1p) of the first device light (101) and a second spectral power (Em) at a minimum between the first peak maximum (λ1p) of the first device light (101) and a second peak maximum (λ2p) of the first luminescent material light (211); and (F) the light generating device (100) and the luminescent materials (210,220,230, . . . ) are selected such that 1.0≤E1p / Em≤6.0.

The proofing device for garment processing comprises a machine tool, auxiliary rails are arranged on the two sides of the machine tool respectively, and a plurality of first air holes are formed in the machine tool; the flow guide roller is mounted at one end of the machine tool; the clamping mechanism comprises a movable clamping piece, a fixed clamping piece and a first driving piece, the movable clamping piece is connected to the auxiliary track in a sliding mode and is driven by the first driving piece, and the fixed clamping piece is arranged at the tail end of the machine tool; and the cutting mechanism comprises a cutting end and a second driving part. The sample making device for garment processing has the beneficial effects that the problems that in the prior art, a sample making device for garment processing is single in cloth pressing mode, and when light, thin, soft or easy-to-slip fabric such as silk, polyester and anti-static cloth, the risk that the cloth is locally bulged, the edge is warped or micro-displacement occurs in the cutting process still exists are solved; the full-breadth uniform fitting is difficult to realize, and the high-precision proofing stability is influenced.

The invention discloses a magnetic particle imaging method based on multi-harmonic energy-full width at half maximum combined weighting, which comprises the following steps: acquiring point spread functions of a plurality of harmonic waves with different frequencies of magnetic nanoparticles, and constructing a corresponding system matrix; measuring a reference sample which does not contain the magnetic nanoparticles, and obtaining a plurality of noise matrixes corresponding to harmonic waves with different frequencies; measuring the sample to be measured, and obtaining magnetization response voltage vectors of a plurality of harmonic waves with different frequencies; respectively calculating an energy two-norm of a system matrix, an energy two-norm of a noise matrix and a full width at half maximum of a point spread function of the system matrix and the noise matrix; splicing the magnetization response voltage signals of each harmonic system matrix to form a total system matrix and a total measurement signal vector; calculating a weight factor of each harmonic wave and forming a weight matrix; and constructing a solution equation of the particle concentration distribution of the sample to be detected, and carrying out iterative solution on the solution equation to obtain a particle concentration distribution image of the sample to be detected. According to the invention, efficient utilization of multi-harmonic information is realized.

A display includes a plurality of blue, green, and red light emitting elements having respective blue, green, and red emission spectra including respective blue, green, and red emission peaks at respective blue, green, and red peak wavelengths with respective blue, green, and red full width at half maxima (FWHMs). The display includes a display panel and an optically collimating film. For a substantially collimated incident light and for each of mutually orthogonal polarization states, an optical transmittance of the optically collimating film includes substantially distinct blue, green, and red transmission bands having respective blue, green, and red FWHMs that overlap at least 30% of the respective blue, green, and red FWHMs at a first incident angle of less than about 10 degrees and overlap less than 15% of the respective blue, green, and red FWHMs at a second incident angle of greater than about 30 degrees.

1. The name of this design product: Power Supply (Full Width 2U). 2. Purpose of this design product: This design product is used in the field of electronic instruments. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 3D drawing. 5. Designate Design 1 as the base design.

The invention provides a disinfection lighting device configured to provide device light along a main optical axis, said disinfection lighting device comprising: a first solid-state light source configured to emit white light: a second solid-state light source configured to emit violet light having a dominant peak wavelength in a wavelength range from 380 to 420 nm: a collimator configured to collimate said white light along the main optical axis into a white light beam having a first spatial light distribution having a first Full Width Half Maximum (FWHM1): a batwing optic configured to shape said violet light along the main optical axis into a batwing shaped light distribution, wherein the batwing shaped light distribution has a maximum intensity at an angle (α) with respect to said main optical axis: wherein said angle (α) of a maximum intensity of the batwing shaped light distribution is outside said first Full Width Half Maximum (FWHM1) of the first spatial light distribution of the white light beam.

The application discloses a kind of based on machine vision's breathable film micropore defect on-line detection equipment and method, it is related to the field of breathable film defect detection.The present application realizes the synchronous on-line detection to the top surface and bottom surface of breathable film by the top surface detection head and visual recognition device of upper and lower cooperation, avoids the defect omission caused by one-sided detection;With the sliding mechanism and follow-up identification mechanism arranged at the top of support, the detection unit can move flexibly in multiple positions in horizontal and vertical directions, so as to cover the full width and multiple detection areas of breathable film, significantly improve the comprehensiveness and accuracy of detection, at the same time, the supporting mechanism is adjusted by electric push rod to drive multiple sets of swing pieces to controllably support and moderately extrude the breathable film, so that the film material maintains a stable posture in the detection area and highlights the micropore defect features, which is beneficial to machine vision imaging and identification judgment, and the overall structure realizes the online detection effect of stable guidance, adjustable detection position and various identification methods.

The utility model provides an anti-creep deep groove ball bearing, and belongs to the technical field of bearings. Comprising an outer ring, an inner ring, balls arranged between the outer ring and the inner ring, a widening assembly and a notch, the widening assembly is arranged on the side edges of the outer ring and the inner ring, the widening assembly is composed of a first widening ring and a second widening ring which are located on the side faces of the outer ring and the inner ring, and the first widening ring penetrates through the outer ring and the inner ring and is connected with the second widening ring; anti-creep notches are formed in the outer ring, the first widening ring and the second widening ring; the broadening assemblies are additionally arranged on the side edges of the outer ring and the inner ring, so that the bearing can be widened, and the situation that the deep groove ball bearing cannot be matched due to the size specification is effectively avoided. And meanwhile, an arc-shaped notch is designed at the full-width part of the outer diameter part of the outer ring, so that the outer ring is prevented from being in contact with a bearing seat, traveling waves of the outer ring below a bearing area due to the load of a rolling body are effectively blocked, and the creeping phenomenon is prevented.

The invention pertains to the field of nanotechnology. The invention provides highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe1-xTex core and ZnS and / or ZnSe shell layers. The nanostructures comprising a ZnSe1-xTex core and ZnS and / or ZnSe shell layers display a low full width at half-maximum and a high quantum yield. The invention also provides methods of producing the nanostructures.

Disclosed are devices that include a contact for electrical connection with a source / drain. The contact occupies a full width of a contact well other than areas occupied by sidewall spacers. As a result, high resistivity (due to the presence of liners and nucleation layers within the contact well in conventional devices) is reduced or eliminated.

An optical system includes a display, at least one lens, and at least one of a partial reflector and a reflective polarizer. The optical system forms a virtual image of an image emitted by the display for viewing by an eye. The emitted image includes a plurality of cones of image light. Each cone of image light propagates from a different corresponding location on the emitted image and includes a central light ray propagating along a central axis, such that in each of orthogonal first and second planes that include the central axis, an intensity distribution of the cone of image light as a function of angle relative to the central axis includes a substantially flat peak having a full width of at least 15 degrees across which the peak changes by less than about 20%, and a corresponding fullwidth at half maximum that is less than about 60 degrees.

The invention provides an ultra-wide tuning range narrow-band optical filter utilizing FP cavity high-order harmonics and a design method of the ultra-wide tuning range narrow-band optical filter. The optical filter comprises an input reflecting layer, a composite cavity layer and an output reflecting layer which are stacked in sequence, the composite cavity layer comprises a metal layer and two single-side cavity layers which are arranged on the two sides of the metal layer and are equal in thickness; by adjusting the thickness of the single-side cavity layer, the filtering center wavelength is adjusted; the larger the thickness of the single-side cavity layer is, the larger the filtering center wavelength is. The metal layer is introduced into the middle of the FP cavity of the optical filter, so that a first-order harmonic peak is effectively inhibited, second-order harmonic waves are reserved, and a sideband at a short wave position is reduced, so that the full width of half peak of filtering is reduced, and meanwhile, the working range of the FP optical filter is widened to the range of 550nm-850nm by utilizing high-order resonance. The optical filter is simple in structure process, easy to implement and simple in structure, and the central wavelength of the optical filter can be adjusted only by adjusting the thickness of the silicon dioxide cavity layers adjacent to the two sides of the metal layer.

A coated cutting tool includes a substrate with a coating including a (Ti,Al)N layer having an overall composition (TixAl1-x)N, 0.34≤x≤0.65. The (Ti,Al)N layer contains columnar (Ti,Al)N grains with an average grain size of from 10 to 100 nm. The (Ti,Al)N layer also includes lattice planes of a cubic crystal structure. The (Ti,Al)N layer shows a pattern in electron diffraction analysis, wherein there is a diffraction signal existing, which is shown as a peak (P) in an averaged radial intensity distribution profile having its maximum within a scattering vector range of from 3.2 to 4.0 nm−1, the full width half maximum (FWHM) of the peak (P) being from 0.8 to 2.0 nm−1.

A method for manufacturing an electrode assembly according to the present invention comprises: a step (a) of transferring an electrode, in which a plurality of electrodes and a plurality of separators are alternately stacked, to a first position; a step (b) of forming an adhesive layer on both side portions of the separators, which are provided in the electrode assembly disposed at the first position, in a full width direction; a step of (c) of allowing the pair of pressing blocks provided at a second position to move in a direction corresponding to each other, wherein an interval between the pair of pressing blocks is less than a length of each of the separators in a full width direction and is greater than a length of each of the electrodes in a full width direction; a step (d) of allowing both the side portions of the separator to be bent upward while being in contact with the pressing blocks when the electrode assembly disposed at the first position descends to be inserted between the pair of pressing blocks provided at the second position; and a step (e) of allowing both the bent side portions of the separator to be adhered each other by an adhesive layer while overlapping each other when the pair of pressing blocks moves toward the electrode assembly.

To provide a film stretching device that can suppress unevenness in the thickness of a stretched film.SOLUTION: A film stretching device 1 according to one aspect of the present invention heats and stretches a film F composed of a thermoplastic resin while transporting it. The film stretching device 1 comprises a pair of driving rolls 11, 12 that drive the film F, a pair of tension rolls 31, 32 which stretch the film between the pair of driving rolls 11, 12, and a pair of rod- or band-shaped infrared heaters 41, 42 disposed one on each side of the film F, facing each other across the full width of the film F between the pair of tension rolls 31, 32. There is no heat source other than the infrared heaters 41, 42 between the pair of driving rolls 11, 12.SELECTED DRAWING: Figure 1

The invention provides a light generating system (1000) comprising a first light generating device (110), a luminescent material (200), a diffuser assembly (700), optical elements (500), and a light exit (1090), wherein; (A) the first light generating device (110) is configured to generate first device light (111); (B) the optical elements (500) comprise a first redirection optical element (1510) configured in a light-receiving relationship with the first light generating device (110); wherein the first redirection optical element (1510) is configured to (i) direct the first device light (111) in an optical path to the diffuser assembly (700), and to (ii) direct at least part of diffused device light (711) in an optical path to the luminescent material (200) (C) the diffuser assembly (700) comprises (a) a diffuser (710), wherein the diffuser (710) comprises a polarization maintaining diffuser, wherein the diffuser (710) is configured in the reflective mode; wherein the diffuser (710) is configured to diffuse at least part of the first device light (111) received by the diffuser (710) into diffused device light (711), wherein the diffused device light (711) has a full width half maximum of at least 5°; and (b) a quarter waveplate (720); wherein the light generating system (1000) is configured such that first device light (111) reaching the quarter waveplate (720) comprises linearly polarized light; wherein the quarter waveplate (720) is configured to convert linear polarized light received by the quarter waveplate (720) into elliptical polarized light and to convert elliptical polarized light received by the quarter waveplate (720) into linear polarized light; wherein the diffuser assembly (700) is configured to provide the diffused device light (711) in an optical path to the luminescent material (200) via the first redirection optical element (1510); (D) the luminescent material (200) is configured to convert at least part of the diffused device light (711) received by the luminescent material (200) into luminescent material light (201); (E) the optical elements (500) are configured to direct at least part of the luminescent material light (201) in an optical path to the light exit (1090); and (F) the light generating system (1000) is configured to generate in an operational mode of the light generating system (1000) system light (1001) comprising at least part of the luminescent material light (201).

The invention relates to an improved stretcher air supplement device which comprises a code disc. The number of the coded discs is two, the coded discs are disc-shaped, the peripheries of the coded discs are provided with buckles, through-hole-shaped ventilation holes are densely distributed in the coded discs, and the centers of the coded discs are provided with mounting holes; the end face of one end of the code disc is attached to an opening of the air supplementing pipe. The filter screen is disc-shaped, the size of the filter screen is matched with that of the code disc, and a connecting hole is formed in the center of the filter screen; the filter screen is clamped between the code discs; the support is inverted-V-shaped, the top of the support is provided with an annular connecting block, and the lower end of the support is fixed on the base; the two brackets are respectively close to the two ends of the code disc; the rotating shaft is cylindrical and penetrates through the mounting hole and the connecting hole, and the two ends of the rotating shaft are mounted on the connecting blocks in a penetrating manner; the chain wheel is arranged along the periphery of the code disc; the chain is sleeved on the chain wheel; the motor is arranged on the base, and a gear is arranged on an output shaft of the motor; and the gear is meshed with the chain. According to the invention, the filter screen can run in a full range, and the shutdown frequency is reduced.

The utility model relates to the technical field of web printing presses, and discloses an adjustable material supporting device for a web printing press, which comprises a base, a plurality of connecting blocks are slidably connected to the front side and the rear side of the inner wall of the base, and adjusting rollers are rotatably connected to the opposite ends of the connecting blocks. A connecting frame is fixedly connected to the opposite end, corresponding to the lower side of the adjusting roller, of the connecting block on the left side, a sliding frame is connected to the inner wall of the connecting frame through a lifting assembly and used for adjusting the distance between the adjusting rollers on the two sides, and a first motor is connected to the bottom end of the sliding frame through a movable assembly. According to the utility model, through the liftable design, the heights of the adjusting rollers on the two sides can be adjusted at the same time, so that adjustment can be carried out according to tension required by materials, uniform tension of paper in the full width is ensured, blurring, double images or colors of printed patterns are avoided, meanwhile, uniform distribution of tension is beneficial to keeping the paper stable in the conveying process, and the production efficiency is improved. The overprinting precision of multi-color printing is improved, pattern alignment is ensured, and the product quality is improved.

The utility model relates to the technical field of elevators, in particular to an elevator with an anti-following scanning function, which comprises an elevator car, grooves are arranged on the inner walls of two sides of the elevator car, side doors are slidably connected in the grooves, a display screen is fixedly connected on the inner wall of the elevator car, and a screw is rotatably connected in the elevator car. And the movable plate is arranged in the elevator car in a sliding mode, the screw rod is in threaded connection with the movable plate, and the lower end of the movable plate is fixedly connected with a camera, an infrared sensor and a laser scanner head. The output end of the motor drives the screw rod to rotate through the coupler, the movable plate transversely slides through threaded fit between the movable plate and the screw rod, meanwhile, the movable plate drives the camera, the infrared sensor and the laser scanner head to transversely move, and the interior of the elevator car can be comprehensively monitored; the sensors can cover the full width of the elevator car, and it is ensured that each corner is effectively monitored.