32results about "Damping devices" patented technology

A sheet manufacturing apparatus 1 includes: a deposition unit 50 that forms a web W; a transport belt 621 that comes into contact with an upper surface of the web W to hold the web W and transports the web W in a transport direction; a suction unit 200 that is provided above the transport belt 621 and causes the web W to be attracted and attached to the transport belt 621 by suction; a humidification unit 265 that faces the transport belt 621 and adds moisture to the web W from below; and a sheet forming unit 70 that presses the web W to form the web W into a belt-shaped sheet P1. The suction unit 200 includes a first duct 210, a second duct 220 provided downstream of the first duct 210, and a third duct 230 provided downstream of the second duct 220. The humidification unit 265 has an outlet 265a for discharging humidified air. The second duct 220 faces the outlet 265a. A plurality of first suction holes 219a and 219b for sucking air are provided in a suction region 213 of the first duct 210. A plurality of second suction holes 229 for sucking air are provided in a suction region 223 of the second duct 220. Diameters of the second suction holes 229 are larger than diameters of the first suction holes 219a and 219b.

To provide a sheet manufacturing apparatus which reduces the frequency of maintenance work.SOLUTION: A depositing unit that forms a web W, a transport belt, a suction unit that is provided above the transport belt and causes the web to be adsorbed to the transport belt by air suction, a humidifying unit that is provided so as to face the transport belt and applies moisture from a lower side of the web, and a sheet forming unit that pressurizes the web and forms the web into a belt-shaped sheet, the humidifying unit includes a discharge port that discharges the humidified air, the second duct and the discharge port are disposed to face each other, a plurality of first sucking holes 219a and 219b that suck air are provided in the sucking region 213 of the first duct, a plurality of second sucking holes 229 that suck air are provided in the sucking region 223 of the second duct, and diameters of the second sucking holes 229 are larger than diameters of the first sucking holes 219a and 219b.SELECTED DRAWING: Figure 4

The utility model relates to the field of corrugated paper production, and discloses a spraying device for corrugated paper production, which comprises a bottom plate, a working table is arranged at the top of the bottom plate, a first conveying belt and a second conveying belt are arranged in an inner cavity of the working table, and the first conveying belt and the second conveying belt are arranged in the inner cavity of the working table through driving rollers. According to the spraying device for corrugated paper production, after a corrugated paper board is placed on the first conveying belt, the first conveying belt and the second conveying belt are driven by the driving mechanism to rightwards convey the corrugated paper board into the spraying bin, the first conveying belt and the second conveying belt are driven by the driving mechanism to convey the corrugated paper board into the spraying bin, and then the corrugated paper board is sprayed to the spraying bin. Meanwhile, a water pipe is connected into the water inlet pipe, water is guided into the two spraying pipes and sprayed out of the spraying heads, when the corrugated board passes through the position between the first conveying belt and the second conveying belt, spraying can be achieved on the two faces of the corrugated board, and the problem that an existing spraying device is difficult to stably install and spray the corrugated board is solved.

A method and device for regulating and / or controlling at least one dampening device having a valve, suitable for dampening a material web (8), in particular a paper material web, a cardboard material web or a fibrous material web, wherein the dampening device is capable of carrying out a cleaning cycle (12), and the valve is configured as a proportional valve, which pulses by a set target value (11) and, by timing control, causes deviations from the set target value (11) so that positive and / or negative deviations with respect to the target value occur.

Method for the automated optimization of a quality profile (1) of a paper, cardboard or fiber web (web) (2), comprising a quality measurement system (3), an actuator system (5) and a control system (8), wherein the following steps are performed: • wherein a maximum value is controlled for at least one actuator (6), wherein the effectiveness of the order is determined at the maximum value using the quality measurement system (3), • the actuator (6) is controlled stepwise to the minimum value, whereby the effectiveness of the order is determined for each step using the quality measurement system (3), • a characteristic curve (12) for the actuator (6) is calculated, which is used by means of the control system (8) to achieve the required quality profile (1) of the track (2). Furthermore, the invention relates to a profiling system.

The application provides a humidifying box of a paper humidifying device, which comprises an upper box body and a lower box body, the upper box body and the lower box body are hinged at one end and connected by a gas cylinder at the other end; after the upper box body and the lower box body are closed, a cavity is formed between the two box bodies, a paper feeding and discharging gap for feeding and discharging paper is left in the cavity, and the rest part is completely closed; a steam gap for spraying steam is arranged below the upper box body and above the lower box body.

The invention discloses a method for improving the flatness of sheepskin surface paper of a paper tube, which comprises an unwinding frame, a gluing device and a tensioning guide rod assembly arranged at the feeding end of the gluing device, an infiltration water tank is arranged between the unwinding frame and the tensioning guide rod assembly, and a leveling assembly is arranged between the tensioning guide rod assembly and a glue tank. A water control assembly is arranged at the discharging end of the infiltrating water tank, sheepskin surface paper on the unwinding frame is infiltrated through the infiltrating water tank, the humidity is controlled through the water control assembly, dust on the surface is scraped off, then the sheepskin surface paper is pulled to the tensioning guide rod assembly, and finally the sheepskin surface paper is flattened through the tension and flattening assembly and then enters the gluing roller to be subjected to single-face gluing. Compared with the prior art, the surface paper has the advantages that the tensile strength and the surface tidiness of the surface paper can be improved, the sheepskin surface paper dust is cleaned, meanwhile, the breakage condition is avoided, the surface smoothness of a formed paper tube is remarkably improved, and the surface paper plays a key role in high-speed winding forming and unwinding processing of superfine chemical fiber spinning cakes below 0.55 dtex.

A method is specified, for rewetting a web (4) made from paper, wherein the web (4) is guided through a plant (2), wherein the plant (2) comprises a processing unit (10), by way of which the web (4) is processed, wherein, downstream of the processing unit (10), the plant (2) comprises a drying unit (12), for drying the web (4), wherein, downstream of the drying unit (12), the plant (2) comprises a plurality of wetting units (18, 20), by means of which the web (4) is rewetted in multiple stages using a wetting agent, by pre-wetting of the web (4) taking place by way of a first one of the wetting units (18), and post-wetting of the web (4) taking place after a minimum dwell time (T) by way of a second one of the wetting units (20), wherein the minimum dwell time (T) is selected in such a way that the web (4) has an increased absorption speed for the wetting agent in the second wetting unit (20) on account of the pre-wetting. Furthermore, a plant (2) is specified, for processing a web (4) made from paper.

The utility model relates to the technical field of paper product processing, in particular to a paper product humidifying device for paper product processing, which comprises a humidifying frame, a bottom plate is arranged below the humidifying frame, a printing group and a guide side plate are arranged on the bottom plate, paper raw materials are arranged in the printing group in a penetrating manner, a steam box is arranged on the humidifying frame, and an electric heating wire and an air pump are arranged on the steam box. The air pump is provided with a three-way pipe and an exhaust pipe, the three-way pipe is connected with an air conveying pipe, the air conveying pipe is connected with a telescopic pipe, the telescopic pipe is provided with a wet spraying cover, the wet spraying cover is provided with a wet spraying opening, the wet spraying cover is provided with a pull ring, the guide side plate is provided with a guide motor, the guide motor is provided with a guide roller, and the guide roller is provided with a material blocking disc. According to the paper raw material wet spraying device, effective, comprehensive and symmetrical steam spraying humidification can be conducted on the surface of a paper raw material, the later printing quality of the paper raw material is guaranteed, the humidified paper product material paper raw material is stably guided into a printing set, and the effective humidification distance between a wet spraying cover and the paper raw material is guaranteed.

This utility model discloses a rewetting device for a cured filter paper production line, comprising: a frame; three sets of rollers for supporting the cured filter paper rotatably installed within the frame; a rewetting mechanism for rewetting the filter paper, located on the frame and between the first two sets of rollers in the filter paper conveying direction, the rewetting mechanism including a cover that sprays steam from the bottom of the filter paper to rewet it; and a detection mechanism for detecting the moisture content of the filter paper, located on the frame and between the last two sets of rollers in the filter paper conveying direction, the detection mechanism including an online NIR moisture analyzer that performs non-contact moisture detection on the filter paper from above. By using steam rewetting instead of ultrasonic spraying, the steam particles are small and uniform, allowing for rapid penetration into the cured filter paper, overcoming the problems of large atomized particles and poor penetration, ensuring uniform filter paper humidity, and providing a good performance foundation for subsequent winding and other processes.

The utility model relates to the technical field of paper machines, and discloses a spraying device for producing biological antibacterial single-layer paper, which is characterized in that the front side and the rear side of the right end of the inner wall of a water tank are fixedly connected with rotating columns, the outer walls of the two rotating columns are rotatably connected with a placing net, and the rear side of the inner wall of the water tank is fixedly connected with a water pump; the output end of the water pump communicates with a water pipe, fixing frames are fixedly connected to the front end and the rear end of the right side of the outer wall of the water tank correspondingly, a plurality of water storage blocks are fixedly connected to the tops of the two fixing frames correspondingly, the water storage blocks communicate with the water pipe, and atomizing nozzles are fixedly connected to the adjacent sides of the water storage blocks correspondingly. According to the utility model, paper pulp can be effectively soaked through the placing net in the water tank, and the water pump on the rear side of the inner wall of the water tank is communicated with the water pipe, so that continuous and stable water source supply of the atomizing nozzle is ensured, and the requirement on paper pulp humidity regulation in the production process of biological antibacterial single-layer paper is met.

A kind of paper pulp molding automated production system, including molding machine body, conveying system, feeding mechanism, drying system, humidification system and hot-pressing system;The molding machine body is close to the input end of the conveying system, the feeding mechanism is located between conveying system and molding machine body, and the feeding mechanism is used to grab paper tray on molding machine body to the conveying part of conveying system;The drying system, the humidity acquisition device, the humidification system and the hot-pressing system are sequentially arranged on conveying system from the feed end to the discharge end of the conveying system.The overall structure is simple, and through the automatic conveying, drying, humidification, hot-pressing system, and image recognition and sorting device, each link is automatically processed to improve production efficiency.

A process for the production or treatment of a fibrous web, in particular a paper or cardboard web, includes the following steps: a. drying of the fibrous web in a dryer section; b. subsequent cooling of at least one first side of the fibrous web by way of convection cooling, whereby the fibrous web has a temperature of 65° C. or less on at least the first side after cooling, in particular 50° C. and less; c. apply steam to at least the first side of the fibrous web, in particular the temperature on the first side after steam application is at least 70° C., optionally more than 80° C. or 90° C.; and d. treatment of the fibrous web in at least one calendering nip.

The invention provides a paperboard regional humidification method, and belongs to the technical field of corrugated paper product.The method comprises the steps that initial humidity distribution of a paperboard is obtained through near infrared spectrum full-breadth scanning, a dual-granularity partition matrix is established, humidity distribution characteristics are analyzed through a humidity optimization prediction model, and optimal ultrasonic frequency and power parameters are predicted; according to the target humidity requirement, a humidity change matrix is calculated to determine humidification area distribution, firstly, a gradient humidification mode is adopted to preprocess a coarse humidification area to provide sufficient surface moisture reserve, and then an ultrasonic-assisted fine humidification technology is utilized to promote moisture to deeply permeate into a core paper layer. Finally, uniform humidity distribution of the paperboard from the surface layer to the core layer is achieved, and the technical problem that moisture can only permeate into the surface of the paperboard and is difficult to permeate into the core paper layer uniformly, so that the humidity difference inside and outside the paperboard is obvious is solved.

According to the paper wetting roller, a roller surface is made of rubber, needle holes which are uniformly and densely distributed are integrally formed in the roller surface, the hole opening diameter of each needle hole is 0.3-1.5 mm, the hole bottom diameter of each needle hole is 0.1-1.0 mm, the depth of each needle hole is 0.1-1.0 mm, and the center distance between each needle hole and the nearest adjacent needle hole is 0.4-1.2 mm. Compared with an existing paper wetting roller, the paper wetting roller can more evenly coat the liquid medium on the surface of paper in a rolling mode. The knurling mechanism provided by the utility model adopts the paper wetting roller, so that the moisture of the toilet paper can be properly increased.

The invention relates to a movable wetting device and wetting method for an insulating cardboard, the movable wetting device comprises a walking support and a spraying cantilever, the walking support is provided with a cantilever adjusting mechanism capable of moving and adjusting, and the cantilever adjusting mechanism is provided with a lifting sliding seat capable of adjusting the height; a spraying cantilever perpendicular to the length direction of the walking support is arranged on the lifting sliding base. The spraying cantilever is provided with a spraying assembly, the spraying assembly comprises a plurality of groups of spraying nozzles and a plurality of grouped flow valves, and each group of spraying nozzles respectively control the spraying flow through the corresponding grouped flow valves; a water tank for supplying water to the spraying assembly is arranged at one end of the walking bracket; a paperboard positioning assembly is arranged on one side of the walking support, and a transformer paperboard to be wetted is positioned through the paperboard positioning assembly after being input. Automatic wetting operation of the transformer paperboard can be achieved, it can be guaranteed that the paperboard is wetted evenly, and the wetting amount is accurately controlled.

A sheet manufacturing apparatus includes a humidifying case and a humidified air generator attachable to and detachable from the humidifying case, the humidifying case includes a first sensor, the humidified air generator includes a water storage unit that stores water and a float unit that is displaced according to a water level of the water storage unit, and the first sensor detects that the float unit is located at a first position that is a position of the float unit in a state where the humidified air generator is set in the humidifying case and drainage of the water storage unit is completed.

The utility model discloses a three-roller humidifying mechanism which comprises a humidifying roller (1), a power roller (2) and a transmission roller (3) and further comprises a machine shell (4), the humidifying roller (1), the power roller (2) and the transmission roller (3) are all arranged in the machine shell (4), the machine shell (4) is provided with a moving mechanism connected with the transmission roller (3), the moving mechanism is divided into a moving block (5) which is arranged on the machine shell (4) and connected with the transmission roller (3), and the moving block (5) is connected with the transmission roller (3). The position of the transfer roller (3) is adjusted through the moving mechanism, due to the fact that the transfer roller (3) is a rubber roller and is attached to the power roller (2), the contact area between the transfer roller (3) and the power roller (2) can be changed along with movement of the transfer roller (3), and therefore the area of paper attached to the power roller (2) is adjusted, and the water wetting amount of the paper is adjusted.

The utility model provides an adjustable grey paperboard calendering device, which relates to the technical field of paper product processing and comprises a shell, a positioning frame A and a positioning frame B, a conveying belt is installed on the inner side of the rear end of the shell, a motor shell is connected to the left side of the front end of the shell, a servo motor is installed in the motor shell, a water tank is installed in the rear end of the shell, a connecting pipe is connected to the water tank, the positioning frame A is arranged on the upper side of the center end of the shell, and a fixing plate is fixedly connected to the interior of the upper side of the positioning frame A; a square cover is clamped in a positioning frame A, water vapor can be blocked by the square cover, the grey paperboards are evenly heated, the heating and humidifying effect on the grey paperboards is enhanced, a first threaded pipe and a second threaded pipe are matched, the height of the square cover is flexibly adjusted, and the grey paperboards with different thicknesses or different drying degrees can be conveniently humidified and heated; the problem that an existing adjustable grey paperboard calendering device is low in applicability to grey paperboards with different thicknesses in the steam heating process is solved.

The invention relates to a preparation method and equipment of special explosion-proof body paper for paper tubes, and relates to the technical field of body paper manufacturing, the special explosion-proof body paper comprises a raw material processing assembly, a paper forming processing assembly, a paper drying processing assembly and a paper post-processing assembly, the paper drying processing assembly comprises a water dipping device used for attaching water to paper, and the water dipping device comprises a machine body; a containing box used for containing water is arranged on the machine body, a water adding assembly used for filling the containing box with water is further arranged on the machine body, a water dipping roller is rotationally connected to the machine body, the outer side wall of the water dipping roller makes contact with the water in the containing box, a pressing roller is rotationally connected to the machine body, and the pressing roller is higher than the water dipping roller. Paper is located between the pressing roller and the water dipping roller. The uniformity of water attached to paper can be improved.

A sheet manufacturing apparatus is provided with: a stacking unit that forms a web; a conveyor belt which is in contact with the upper surface of the material sheet to hold the material sheet and conveys the material sheet in the conveying direction; the suction part is arranged above the conveying belt and enables the material sheets to be adsorbed on the conveying belt through air intake; a humidifying part which is arranged opposite to the conveying belt and is used for supplying moisture from the lower side of the material sheet; and a sheet forming unit that pressurizes the web to form a strip-shaped sheet, the suction unit includes a first passage, a second passage provided downstream of the first passage, and a third passage provided downstream of the second passage, the humidification unit includes a discharge port that discharges humidified air, and the second passage and the discharge port are disposed facing each other. A plurality of first suction holes for sucking air are provided in the suction region of the first channel, a plurality of second suction holes for sucking air are provided in the suction region of the second channel, and the diameter of the second suction holes is larger than the diameter of the first suction holes.

The utility model relates to the technical field of paper humidifying, in particular to an automatic humidifying device which comprises a case, a first humidifying mechanism, a first infrared moisture measuring instrument, a second humidifying mechanism, a tensioning mechanism, a leveling mechanism and a second infrared moisture measuring instrument. The leveling mechanism is composed of a supporting roller and an ironing roller adjustably arranged above the supporting roller. According to the utility model, the humidity of the raw paper is firstly detected through the first infrared moisture measuring instrument, and the raw paper of which the humidity value exceeds a set threshold value is directly ironed and flattened at a proper temperature through the flattening mechanism, so that the humidity value of the raw paper reaches a set safety threshold value; for the body paper with the humidity value lower than a set threshold value, water is sprayed to the body paper in advance through the first humidifying mechanism for humidification, then the tensioning degree is improved through the tensioning mechanism, finally the body paper is refined and humidified through the second humidifying mechanism, and finally ironing and flattening are conducted at the appropriate temperature through the flattening mechanism, so that the humidifying efficiency of the body paper is further improved, and loss is reduced; the processing efficiency is improved.

The utility model relates to the technical field of paperboard processing, and discloses a corrugated paper production anti-warping humidifying device, which comprises a device main body, the device main body comprises a base, a humidifying module comprises two driving wheels, a conveying belt and a humidifying module, the number of the driving wheels is two, and the driving wheels are provided with a conveying belt at the same time; the humidifying roller is movably installed at the top end of the base through a rotating shaft frame, the humidifying roller is arranged above the conveying belt, and the outer surface of the humidifying roller is sleeved with a brush; the motor is fixedly installed at the top end of the base, and the motor and the humidifying roller are connected with a transmission crawler belt at the same time; and the water storage box is fixedly installed at the top end of the base, by arranging the humidifying module, a paper board driven by the conveying belt to move forwards makes contact with a brush of a humidifying roller and then is evenly coated with a layer of humidifying water, and the defects that some existing humidifying modes are prone to causing uneven water distribution and local over-wet or under-wet are effectively overcome.

The utility model relates to corrugated board spraying and humidifying equipment, and relates to the technical field of paperboards, the corrugated board spraying and humidifying equipment comprises a main body, the top of the main body is fixedly connected with a shell, the top of the shell is fixedly connected with an anti-bending mechanism, the interior of the shell is fixedly connected with a water spraying mechanism, and the outer side of the main body is fixedly connected with a butt joint mechanism; a recycling mechanism is fixedly connected to the interior of the main body, the butt joint mechanism comprises a fixing column, the outer side of the fixing column is fixedly connected to the interior of the main body, a plurality of limiting blocks are fixedly connected to the outer side of the fixing column, and a connecting column is slidably connected to the outer side of the fixing column. The corrugated board spraying and humidifying equipment has the advantages that the rapid sealing and butt joint effect is achieved, the efficient, sealing, stable and convenient effects are achieved in water supplementing of the corrugated board spraying and humidifying equipment, the maintenance cost is reduced while the production efficiency and the equipment reliability are improved, and the industrial water saving and intelligent upgrading innovative design effects are achieved.

The invention provides a sheet manufacturing device which enables separation of a material sheet to be easy to implement. The sheet manufacturing apparatus includes: a stacking unit that forms a web; a conveyor belt that is in contact with and holds one surface of the web and conveys the web; the suction part is arranged above the conveying belt and enables the material sheets to be adsorbed on the conveying belt; and a sheet forming unit that forms the web into a sheet, the suction unit having a first channel, a second channel provided downstream of the first channel in the conveyance direction, and a third channel provided downstream of the second channel in the conveyance direction, the third channel being provided downstream of the second channel in the conveyance direction, and the second channel being provided downstream of the third channel in the conveyance direction. A plurality of third suction holes are provided in a suction region of the third passage, the suction region including a first region and a second region located downstream of the first region in the conveyance direction. The number of third suction holes provided in the second region is less than the number of third suction holes provided in the first region.

The drying device for toilet paper production comprises a drying box, the drying box is provided with a feeding port and a discharging port which are opposite to each other, meanwhile, the drying box is further provided with a heating module and an exhaust pipe, an exhaust module is arranged in the exhaust pipe, and the heating module is located at the rear end of the exhaust pipe in the moving direction of toilet paper to be dried; the drying box is further provided with a controller, and the controller is electrically connected with the heating module and the exhaust module. A plurality of temperature sensors electrically connected with the controller are further arranged in the drying box. According to the drying device, secondary adjustment of the water content of the toilet paper can be achieved by guiding steam flow to move synchronously with the toilet paper in the cooling section, the adjustment mode can be adjusted through the air exhaust speed of the air exhaust module, and therefore balance between dryness and flexibility is achieved, and the drying effect on the toilet paper is improved.

The utility model relates to the technical field related to papermaking, in particular to a humidifying device for papermaking. A nozzle and a mounting rod; a connecting assembly; the connecting assembly comprises a first clamping block clamped on the surface of the mounting rod; the second clamping block is clamped on the surface of the water pipe; the connecting rod is fixed at the top end of the first clamping block; the friction pad is fixed on the inner side surface of the clamping block; the magnetic blocks are fixed to the upper and lower ends of the opening of the first clamping block. The connecting assembly is arranged, the second clamping block is in threaded connection with one end of the connecting rod, then the first clamping block and the second clamping block are clamped to the surface of the mounting rod and the surface of the water pipe respectively, and the friction pads are fixedly connected to the inner side faces of the clamping blocks, so that the clamping blocks are stably connected with the mounting rod and the water pipe; the water pipe can be replaced and maintained only by pulling out the second clamping block, the clamping blocks can be recycled conveniently, and the problems in the prior art are solved.