86 results about "Paper quality" patented technology

The invention discloses a dynamic intelligent test paper composition method, system and device based on multiple question types and multiple difficulty gradients, and relates to the technical field of online education, and the method comprises the steps: cleaning and removing duplications of questions in a question bank, constructing question portraits containing multi-dimensional information, and calibrating difficulty; receiving test paper configuration to generate hard constraints, dividing a multi-difficulty gradient layer, and setting target difficulty and continuity constraints; the candidate set is screened according to question types and gradient layers, and initial test papers are generated in a layered and segmented mode; the constraint conflicts are repaired through iteration replacement exchange, and finalization is optimized under the multi-objective criterion; and finally, dynamically updating capability parameters based on answer data, adjusting subsequent target difficulty, and outputting test paper and verification indexes. The follow-up test paper composition strategy can be adjusted in real time according to the answer condition of the examinee, the quality of the question bank is guaranteed, it is ensured that the test paper meets hard constraints, the difficulty is smoothly increased, the test paper quality and the evaluation effect are improved, the adaptability and accuracy of personalized testing are enhanced, and the method is suitable for various personalized testing scenes.

The invention relates to the technical field of industrial process soft measurement and quality control, and discloses a paper quality prediction method based on multivariate statistical latent variable fusion and space-time transformation, which comprises the following steps: acquiring space-time sequence data of a multi-source sensor in a papermaking process, constructing a space-time diagram structure reflecting a topological relation of equipment, and preprocessing. Then, multi-view latent variables are extracted through non-negative matrix factorization, independent component analysis and robust principal component analysis, attention fusion is conducted on the latent variables through an LV fusion module, and fusion latent variables are obtained; and inputting the fusion latent variable and original node data into a multi-scale convolution auto-encoder to obtain spatial feature embedding, and inputting the spatial feature embedding and the fusion latent variable into a space-time Transform module together to realize joint modeling of space correlation and time dependence. And finally, outputting a paper quality predicted value through a linear regression module. The method can achieve the accurate prediction of the paper quality under a high-dimensional and multi-noise working condition, and is suitable for online monitoring and modeling updating.

This utility model discloses a paper surface water absorption tester, relating to the papermaking industry. The paper surface water absorption tester includes a base plate, with two support plates symmetrically fixedly connected to one side of the base plate. A water supply mechanism for paper water absorption is provided between the two support plates. It also includes: a placement boss on the base plate, the placement boss being integrally formed with the base plate; and two sets of mounting seats symmetrically fixedly connected to the base plate and located on both sides of the placement boss. This utility model, through stable motor drive, ensures constant pressure intensity. Throughout the testing process, the pressure deviation of the pressure roller on the paper is minimal, ensuring consistent testing conditions each time, effectively avoiding human interference, making the test results more reliable and repeatable, and enabling the test data to more accurately reflect the true surface water absorption of the paper, providing strong data support for paper quality assessment and process improvement.

The invention discloses a papermaking felt containing a monofilament elastomer and a preparation method thereof, and aims to provide a papermaking felt with excellent elastic recovery performance, high strength and long service life. According to the papermaking felt, through a special preparation technology, TPU monofilaments serve as warp and weft to be made into grids, a fiber base net serves as a middle framework layer, a multi-layer fiber net structure is reinforced through a needling technology, and the papermaking felt with certain tightness and compactness is formed. Compared with the prior art, the prepared papermaking felt not only has good dehydration capacity, but also can be kept stable on a high-speed papermaking machine, the production cost is reduced, and the paper quality is improved. The papermaking felt is suitable for a high-speed vacuum cylinder papermaking machine and can meet the requirement of the modern papermaking industry for high-performance papermaking felt.

The utility model relates to paper quality die cutting technical field discloses a kind of paper display stand die cutting machine, including shell, the top wall middle part front side of shell is fixedly connected with second rack, the top wall middle part of shell is provided with second motor, the output of second motor is fixedly connected with second gear, second gear and second rack are engaged connection, the inner wall of second gear is fixedly connected with screw rod, the other end of screw rod is fixedly connected with ball bearing, the outer wall of ball bearing is fixedly connected with sliding block, sliding block is set in the front and back side of screw rod, second motor is fixedly connected in the inner wall of sliding block, the outer wall of screw rod is connected with pressure block with screw thread connection.The utility model in the screw rod and pressure block are screw thread connection relationship, pressure block moves along fixed rod and is guided, by the up-down movement of second gear, the waste edge is pressed by pressure block, and the left and right movement of screw rod makes the paper waste edge on shell remove.

The utility model relates to the technical field of paper sizing, and discloses a cooling device for a paper sizing roller, which comprises a bottom plate and two side plates which are arranged at the top of the bottom plate and are bilaterally symmetrical, a sizing roller and a paper pressing roller are arranged between the two side plates, an air cooling mechanism and a water cooling mechanism are arranged outside the sizing roller, and the water cooling mechanism is arranged outside the sizing roller. The air cooling mechanism comprises a sliding plate arranged at the top between the two side plates in a sliding mode and a lead screw piece for driving the sliding plate to slide left and right, a fan and two electric push rods are installed on the sliding plate, an air frame is installed between the output ends of the two electric push rods, and a plurality of air cylinders for blowing air to the sizing roller are arranged on the inner side of the air frame at equal intervals. And an air pipe connected with the air duct is mounted at an air outlet of the fan. The rubber roller cooling device has the advantages and effects that the rubber roller can be quickly cooled, and the paper quality is improved.

The utility model discloses an archive file scanning auxiliary device, and relates to the technical field of file scanning. The device comprises a base, the base comprises a supporting table, a rear supporting frame and a supporting plate, the rear supporting frame is fixedly installed on the rear side of the supporting table, the supporting plate is fixedly installed at the top of the supporting table, a liftable workbench is installed at the top of the supporting table, and a moving mechanism is fixedly installed at the top of the rear supporting frame. According to the utility model, the moving mechanism drives the two groups of bulldozing pieces attached to the middle part of the paper file to move and drives the bulldozing pieces to move to the edge of the paper file, so that when the bulldozing pieces move to the edge, the turned edge of the paper file is pressed and bulldozed by the bulldozing pieces, and the two groups of bulldozing pieces are driven by the moving mechanism to move reversely; the pressing belts on the two sets of rotating rollers are driven to be unfolded, the pressing belts are pressed by the pressing rollers to be attached to the edge of the paper archive till the rotating rollers are separated from the paper archive, and one side of the paper archive is pressed through the pressing belts.

The utility model discloses a rapid drying and shaping device for household paper, which comprises a working box, a plurality of groups of shaping compression rollers are rotatably arranged in the working box, a conveying roller is arranged in the working box and is positioned on one side of the shaping compression rollers, and a conveying rolling shaft is arranged in the working box and is positioned on one side, far away from the shaping compression rollers, of the conveying roller; the side face of the working box is provided with a drying assembly used for conducting preliminary drying on the paper output by the shaping pressing roller. The drying assembly comprises an upper baking lamp, a lower baking lamp, a clamping module and a moving module, paper is preliminarily shaped through the shaping compression roller, the paper is moved to the position between two sets of upper clamping plates and lower clamping plates under the action of the conveying roller, and the paper is driven to the position between the upper baking lamp and the lower baking lamp through the moving module to be preliminarily dried; and the moving assembly drives the paper to move to the position above the conveying rolling shaft, the paper is dried again through the upper baking lamp and the conveying rolling shaft, and therefore the paper is rapidly dried and shaped at the same time, and the paper quality is prevented from being affected by wrinkles of the paper.

The invention discloses a Chinese character calligraphy training system, which comprises a learning resource center for providing calligraphy learning resources and selecting video, image-text or animation courses for learning by a user according to own learning stages and requirements through a dynamic course library; the environment optimization module identifies and corrects the influence of paper quality, ink color and external light on the calligraphy work through an intelligent correction technology; the feedback and guidance module analyzes the calligraphy work of the user, introduces multi-dimensional evaluation indexes including writing speed, stroke coherence, structural layout rationality, font style consistency and overall attractiveness, evaluates the calligraphy level of the user according to the multi-dimensional evaluation indexes by using a random forest, points out problems and provides improvement suggestions; and the personalized learning module captures writing styles and habits of the user by using deep learning, constructs a calligraphy portrait of the user, and customizes a learning plan for the user according to the calligraphy level of the user, the calligraphy portrait of the user and requirements.

The wall-mounted high-speed scanner comprises a high-speed scanner base, the upper surface of the high-speed scanner base is fixedly connected with a mounting block, the upper surface of the mounting block is fixedly connected with a first telescopic rod, one end, far away from the mounting block, of the first telescopic rod is fixedly connected with a supporting block, and the upper surface of the supporting block is provided with a sliding groove. And a sliding block is slidably connected to the interior of the sliding groove, and a connecting rod is fixedly connected to the side surface of the sliding block. According to the structure, the second telescopic rod, the pressing plate, the fixing plate, the spring, the mounting frame, the guide column, the rolling shaft and the handle are matched, so that paper is limited on the upper surface of the high-speed photographic apparatus base, the rolling shaft can generate displacement under the action of the sleeve and the guide column and can rotate at the same time, wrinkles of the paper are flattened in the rotating process, and the paper quality is improved. And after the paper is flattened, the paper is matched with the pressing plate to limit the two ends of the paper, so that the paper is convenient to scan.

The present application relates to a kind of segmented conveying and segmented heating type double-sided machine, it includes front hot plate conveying part and rear conveying part, air-permeable heating transition section is provided between the front hot plate conveying part and rear conveying part, air-permeable heating transition section is provided with air-permeable heating channel, the upper side and / or lower side of air-permeable heating channel is provided with heat source, the upper side of air-permeable heating channel is provided with the cylinder of preventing scratch face paper printing layer, the cylinder is provided with multiple, and the cylinder is formed with air gap between cylinder and cylinder.The present application is conveyed by section, each conveying section can have different functions, for example: front part carries out fast double-sided heating, improves the adhesion speed of face paper and pit paper, then to air-permeable heating transition section, it can heat, continue to strengthen the adhesion of face paper and pit paper, while, again, air-permeable, accelerates drying, so that the adhesion paste of face paper and pit paper dry solid stable, and, avoid too much moisture in paper quality and influence paperboard quality, realize paperboard quality and production efficiency both.

The utility model relates to the field of paper handles, in particular to an automatic laminating machine for paper handles, which is characterized in that a discharging mechanism at least comprises a first discharging roller and a second discharging roller; the guide mechanism comprises a first guide set, a second guide set and a guide runner so as to guide and convey raw materials on the first discharging roller and the second discharging roller correspondingly. The attaching mechanism comprises a dispensing device arranged at the end, close to the guiding mechanism, of the guiding flow channel and a pressing assembly arranged on the side, away from the guiding mechanism, of the guiding flow channel. The pressing assembly comprises a first pressing wheel arranged above the guide flow channel and a second pressing wheel with the upper end penetrating through the guide flow channel, and the paper carrying handle is conveyed between the first pressing wheel and the second pressing wheel. The whole machine is compact in structure, the processes of raw material distribution, dispensing, attaching, pressure maintaining and the like are operated in a full-automatic connection mode, and multiple operators are not needed; meanwhile, the transfer process of the materials is reduced, the production loss of the materials is reduced, the occupied area of the equipment is reduced on the whole, and the production cost is reduced.

The utility model provides a filter paper structure with good chromatography performance, which relates to the field of detection reagent consumables, and comprises a filter paper mechanism, the filter paper mechanism comprises strip-shaped filter paper, a filtrate line prefabricating groove and a paper anti-falling block, and an anti-inclination mechanism is arranged on the outer wall of the filter paper mechanism. The anti-inclination mechanism comprises a paper stabilizing shell, a hollow groove, a paper L-shaped supporting plate and a paper extending plate, a stabilizing assembly is arranged at the top of the anti-inclination mechanism, and the stabilizing assembly comprises a single-sided adhesive, an isolating membrane and an extending sheet. The bottom of the paper stabilizing shell is in contact with the top of the test tube, the strip-shaped filter paper is supported by the paper L-shaped supporting plate, the top of the test tube is plugged by the plug, then the paper extension plate and the paper L-shaped supporting plate are stabilized, and the strip-shaped filter paper is supported by the paper L-shaped supporting plate, so that additional supporting points are prevented from being provided for the strip-shaped filter paper; the strip-shaped filter paper cannot incline and bend after being placed, so that the chromatography performance is improved.

The utility model belongs to the field of printing, and particularly relates to a printing atomizing and humidifying device which comprises a rack, a positioning frame and two fixing shells are fixedly installed on the top of the rack, inner cavities of the two fixing shells are rotationally connected with reciprocating lead screws, and one ends of the two reciprocating lead screws penetrate to the outer sides of the fixing shells and are fixedly connected with synchronous wheels. By arranging the atomizing and humidifying mechanism, the output end of a second motor drives a guide rod to rotate, two atomizing nozzles can transversely move in a reciprocating mode, printing paper in an inner cavity of a positioning frame can be evenly sprayed and humidified, the output end of a first motor drives a reciprocating lead screw to rotate, and the position of the atomizing and humidifying mechanism can be adjusted at a constant speed; and therefore, the humidifying efficiency of the paper in the inner cavity of the positioning frame is improved, and the problems that most of existing atomizing and humidifying devices are fixed in angle, dead angles easily exist when the paper is atomized and humidified before printing is implemented, individual paper is not uniformly atomized and humidified, and the quality of the printed paper is reduced are solved.

This invention discloses a calendering roller unit and a paper calender, relating to the field of paper calendering technology. It includes a guide roller with a humidity detection matrix at its bottom and a humidity regulating roller at its top. The humidity regulating roller also has a humidity calibration matrix at its top. The humidity detection matrix and humidity calibration matrix divide the paper into several measurement units. The humidity detection matrix is ​​used to obtain the initial humidity data of the measurement units, and the humidity calibration matrix is ​​used to obtain the measured humidity data of the measurement units. A control module is mounted on the humidity regulating roller to control the humidity regulation data. This ensures that the humidity of the measurement units on the paper is highly consistent when they enter the calendering operation between the upper and lower calendering rollers, resulting in high-quality and highly consistent paper after calendering.

The utility model provides a toilet paper powder falling rate tester and a powder throwing mechanism thereof, and belongs to the technical field of paper quality detection. The powder throwing device comprises a powder throwing driving mechanism, a plurality of clamping blocks are arranged at the movable end of the powder throwing driving mechanism, the number of the clamping blocks is larger than or equal to 2, a clamping area is formed among the clamping blocks, and at least one clamping block is connected with a clamping block driving assembly capable of driving the clamping block to move so as to shrink or enlarge the clamping area. And a clamped part of the paper fixer is clamped in the clamping area. The clamping force of the clamping blocks on the clamped part can be dynamically adjusted, it can be guaranteed that the clamped part is stably fixed, the clamped part is prevented from loosening or sliding in the swing test process, and the detection precision is guaranteed; the clamped part is uniformly stressed, torsion or deviation caused by single-side pressure application is avoided, and the edge of the clamped part can be prevented from being damaged due to stress concentration due to uniform clamping force distribution of the clamping blocks.

The invention discloses a self-adhesive label production quality monitoring method and system based on image analysis, and relates to the technical field of label quality monitoring, and the method comprises the steps: obtaining a self-adhesive label; performing image analysis according to the plane material layer monitoring image of the plane material layer, and determining a label plane material quality coefficient; comprehensively detecting the adhesion performance of the adhesive layer to obtain a label adhesion quality coefficient; performing bilateral characteristic detection integration on the backing paper layer according to a backing paper bilateral characteristic detection weight to obtain a label backing paper quality coefficient; setting a label quality expectation condition based on the self-adhesive label; and carrying out expectation coincidence judgment, and outputting a self-adhesive label quality detection result. The technical problems that in the prior art, non-setting adhesive production quality monitoring is lack of accuracy and comprehensiveness, and the quality control efficiency is low are solved, and the technical effects that the non-setting adhesive label production quality monitoring accuracy and comprehensiveness are improved, and the quality control efficiency is improved are achieved.

The utility model discloses a carton processing waste paper smashing and recycling device which comprises a recycling reaction shell, a material guide plate is arranged on one side of the top of the recycling reaction shell, and an upper cover plate is connected to the top of the recycling reaction shell in an attached mode. The device operates by starting a motor, the motor drives an output gear to rotate, the output gear drives a first transmission gear and a second transmission gear to synchronously rotate while rotating, and a gear set transmits power to a mixing plate, so that efficient transmission of the power is realized; paper pulp in the recovery reaction shell is stirred so as to achieve the purpose of sufficient mixing, chemical auxiliaries are added into the recovery reaction shell so that a sizing agent, a reinforcing agent, filler and the like can be sufficiently combined with fibers, the fibers are separated through high-speed stirring, meanwhile, impurities such as printing ink and adhesives are removed, the uniformity and stability of the paper pulp can be remarkably improved, and the production efficiency is improved. The recycling effect of the paper pulp formed by the crushed waste paper box is effectively improved, and the paper forming quality and the production efficiency are improved.

The utility model discloses a convenient-to-use paper splitting machine, including main part, distance adjustment mechanism, feed mechanism and running mechanism, distance adjustment mechanism includes adjustment base, cutting equipment, adjustment motor, lead screw and roller, feed mechanism includes feed motor, reloading frame, rotating rod, bearing rod and quick connection subassembly, and the running mechanism includes the quick connection subassembly. The quick connecting assembly comprises a quick connecting plate, a spring and a fixing frame, the running mechanism comprises a driving motor, a running roller, a matching roller, an air cylinder, a driving roller and a driven roller, under the mutual cooperation of the mechanisms, the cutting size of paper can be adjusted according to different project requirements, the flexibility of the machine is improved, and the application range of the machine is widened; and a new roll can be quickly replaced after the paper roll is used up, so that the downtime of the machine is greatly reduced, the production efficiency is improved, the quality of cut paper is ensured, and material waste and secondary work caused by paper damage are avoided.

The invention provides a paper product, modified light calcium carbonate and a preparation method thereof. The preparation method of the modified light calcium carbonate comprises the following steps: carrying out surface charge modification treatment on light calcium carbonate; carrying out micro-polymerization treatment on the light calcium carbonate subjected to surface charge modification treatment; and carrying out pre-flocculation treatment on the light calcium carbonate subjected to micro-polymerization treatment. According to the preparation method of the modified light calcium carbonate provided by the embodiment of the invention, the light calcium carbonate is firstly subjected to surface modification (charge adjustment), then subjected to micro-polymerization (specific surface area adjustment) and finally subjected to pre-flocculation (overall form optimization), the modified PCC filler can be added into paper pulp for papermaking, and under the condition that the addition amount of the PCC filler is increased, the specific surface area of the PCC filler is increased, and the overall form of the PCC filler is optimized. The water filtering performance of the pulp is ensured, the retention characteristic is not deteriorated, and considerable paper physical property strength, surface strength and sizing performance are maintained. And on the premise of ensuring the running performance of the paper machine, the paper making raw material cost is reduced while the same paper quality is achieved.

This invention relates to the field of electronic digital data processing technology, specifically to an intelligent adjustment method for air dryers based on optical detection. The method includes: drying various test papers using an air dryer; firstly, calculating the stability index of vibration amplitude and the transmittance difference index for each region of each paper; then, calculating the humidity uniformity index for each paper based on the stability index of vibration amplitude and the transmittance difference index for each region of each paper; determining whether the humidity uniformity index meets a set range; if it does, determining that the corresponding paper has uniform humidity; calculating the difference index between each paper in the humidity uniformity group and the standard paper; and taking the drying temperature of the paper with the smallest difference index as the optimal drying temperature and the drying direction of that paper as the optimal drying direction. This method is particularly suitable for a specific function, specifically intelligent adjustment of an air dryer. This invention ensures paper quality while improving drying efficiency.

The utility model discloses a decorative paper quality detection device which comprises a base and a test plate, a test assembly is arranged above the test plate and used for detecting the adhesive force of decorative paper, fixing assemblies are arranged on the two sides of the test plate and used for fixing the decorative paper, and the test plate is provided with a plurality of clamping assemblies. According to the utility model, the two sides of the decorative paper are placed on the supporting table, and the movable openings rotate in the movable bolts, so that the fixing strips on the two sides are folded, that is, the pressing strips are pressed on the two sides of the decorative paper, and the pressing strips are pushed by the springs, so that the decorative paper can be folded. And after installation is completed, the first magnetic block and the second magnetic block are connected with each other, so that the fixing strip is fixed, that is, fixing can be carried out only by placing the decorative paper and then pressing the fixing strip, operation is more convenient, and time consumption is reduced.

The utility model provides a full-automatic whiteness instrument and a spectrum regulation and control mechanism thereof, and belongs to the technical field of paper quality detection. The device comprises a front switching plate and a rear switching plate which are arranged between a light source generator and an integrating sphere, an ultraviolet cut-off filtering module is arranged on the front switching plate, a light hole is further formed in the ultraviolet cut-off filtering module, a blue light filter and a green light filter are arranged on the rear switching plate, the front switching plate and the rear switching plate are connected with a switching mechanism, and the switching mechanism is connected with a light source generator. And the front switching plate and the rear switching plate are respectively driven by the switching mechanism to move so as to change the spectrum entering the integrating sphere light source. The switching mechanism adopts an independent driving strategy, the driving precision is high, and a front switching plate and a rear switching plate can be quickly driven to move to a target position so as to flexibly and quickly switch different measurement modes; the parallel stacking layout of the front switching board and the rear switching board is allowed, the space can be effectively saved, the overall structure is more compact, and the optical path integration problem of compact equipment is solved.

The utility model discloses a multifunctional teaching aid. The multifunctional teaching aid comprises a base; the limiting cover shell is movably arranged on the base, and a containing groove used for containing a blackboard eraser is formed in the limiting cover shell; the cleaning box body is movably arranged on the base; the blackboard eraser is movably arranged on the placing groove, and the blackboard eraser comprises a sponge and an extrusion structure which is arranged on the sponge and can extrude the sponge; the chalk storage box is arranged on one side of the base and used for containing chalks, and a chalk taking mechanism capable of sending the chalks out of the chalk storage box is further arranged in the chalk storage box. Through cooperative arrangement of the limiting cover shell and the cleaning box body, after the blackboard eraser is placed in the cleaning cavity to be cleaned and water is squeezed through the squeezing structure, the blackboard eraser is placed on the containing groove to be automatically aired, the water flowing out of the blackboard eraser can also automatically drip into the cleaning box body, the situation that sewage flies around is avoided, and the blackboard eraser is clean and tidy; meanwhile, the chalk storage box is arranged to replace an original paper box body, chalk storage is more convenient, and practicability and convenience are achieved.

The utility model discloses a paper quality packing gift box printing equipment, including the bottom plate, the upper surface of bottom plate is provided with the conversion subassembly, the bottom of conversion subassembly is provided with a plurality of printing dies, conversion subassembly can drive any one printing die and remove to the work position, the upper surface slidingly connected with the clamping part of being used for positioning the gift box body of bottom plate, the clamping part drives the gift box body and removes to the work position to the printing die printing, the lower surface fixedly connected with the supporting leg of bottom plate. The utility model discloses a printing die is set up to the one side printing of gift box body, is set up conversion subassembly and drives a plurality of printing dies to rotate, so that one of printing dies is in the work position, through the clamping part of being slidably, can drive the gift box body and remove to the work position and the printing die corresponds, can adjust the position of gift box body simultaneously to facilitate printing in the different position of gift box body side, thereby make this paper quality packing gift box printing equipment satisfy the printing demand of packing gift box, have higher applicability.

The invention discloses a packaging paper hardness detection device and method, and relates to the technical field of packaging paper hardness detection.The device comprises a detection table, a set of supporting legs are installed on the bottom face of the detection table, and a clamping mechanism is arranged on the upper surface of the detection table. Through the high-precision clamping mechanism, stable fixation of paper is achieved, uniform stress in the detection process is ensured, the detection accuracy is improved, nondestructive detection and multi-parameter measurement are achieved through ultrasonic non-contact detection and optimized measurement parameter adjustment, the detection precision is improved, and the detection efficiency is improved. The intelligent control module is used for self-adaptive parameter adjustment according to limited information, manual operation errors are reduced, predictive detection of packaging paper with unknown characteristics is achieved based on big data analysis and a pre-established model, powerful support is provided for packaging paper quality control and product research and development, and the whole device is reasonable in structural design, suitable for various types of paper and high in practicability. And wide applicability and stability are ensured.

The utility model relates to the technical field of battery piece printing, in particular to a table top paper storage device of a solar battery piece printing machine. According to the scheme, the design of the box body can effectively protect the internal paper roll main body, prevent dust, stains and other external factors from influencing the paper quality, and prolong the service life of the paper. The box body, the rotating shaft, the paper roll body and the pressing wheel are integrated together to form a compact whole, space is effectively saved, and installation and use are convenient. The paper can be pushed by simply rotating the pressing wheel, complicated operation steps are not needed, and the working efficiency is greatly improved.

The utility model relates to the technical field of paper drying equipment, in particular to a paper drying device. Comprising a machine box and an air supply pipe, four temperature control areas are sequentially arranged in the machine box, the temperature control areas are arranged at intervals and form a backflow channel for airflow to pass through, surrounding walls are arranged outside the four temperature control areas, backflow layers are formed between the surrounding walls and the temperature control areas and communicated with the backflow channel, and the air supply pipe is communicated with the air supply pipe. Conveying rollers are symmetrically arranged on the two sides of the middle of the temperature control area, and air supply pipes are symmetrically arranged on the upper portion and the lower portion in the temperature control area respectively; the inside of the case is divided into a plurality of temperature areas, and a drying mode that the temperature rises step by step is adopted, so that the paper quality is improved, and the production efficiency is ensured.

This utility model discloses a dryer for raw paper production, including a device body containing a drying cabinet and a controller. The drying cabinet has a door at its front end and two mounting frames are installed inside. The door has a finger groove, and the mounting frames have a sliding groove and a locking groove. A slider is slidably installed in the sliding groove, and one end of the slider is connected to a placement frame. An installation plate is installed in the locking groove, and the installation plate has a screw hole. A lower pressure plate is connected below the threaded rod, and a knob is connected above the threaded rod. A drying lamp is installed inside the drying cabinet, which can dry both sides of the raw paper, quickly remove moisture from the paper, shorten the drying time, thereby speeding up the production pace, improving overall production efficiency, ensuring paper quality, and preventing the raw paper from moving or deforming during the drying process, ensuring the safety and stability of the raw paper during drying.