257results about "Needling machines" patented technology

The invention relates to a spunlace non-woven fabric dehumidification device, a control method and system thereof and a storage medium, and relates to the technical field of spunlace non-woven fabric dehumidification. The method comprises the steps that in response to a starting signal of a spunlace system, a centrifugal fan is controlled to work at preset power; a water vapor inlet pipe is controlled to be opened at an inlet through which water vapor enters, under the negative pressure effect of a centrifugal fan, the water vapor is introduced into a water vapor separation barrel for separation operation, primarily-separated water vapor and adsorbed water are obtained, and the relative difference value between the water vapor concentration in the primarily-separated water vapor and a preset upper limit concentration threshold value is obtained; the rotation direction and the rotation speed of the spiral blade are determined according to the relative difference value, and the rotation direction comprises clockwise rotation and anticlockwise rotation; and controlling the spiral blade to rotate according to the rotating speed and the rotating direction. The water vapor recovery device has the effect that the damage probability of the centrifugal fan is reduced while water vapor is recovered.

According to an aspect of the present invention, there is provided a sleeve for a drum for use in forming, pressing or moulding a fibrous web, wherein the sleeve comprises at least two parts and each part has a form of an open-ended cylinder with two edges, configured to be arranged concentrically on the drum. At least one edge of each part has a peripheral locking form, and adjacent edges of adjacent parts have corresponding cooperating peripheral locking forms adapted to lock the parts to each other.

The utility model discloses needling equipment with a mesh belt mesh feeding mechanism. The needling equipment comprises the mesh belt mesh feeding mechanism and a needling mechanism, the mesh belt mesh conveying mechanism comprises two conveying meshes which are arranged up and down at an interval, and a fiber mesh is conveyed between the two conveying meshes; the up-down conveying net is composed of a plurality of net belts which are sequentially arranged in parallel, and gaps allowing needles of the needling mechanism to penetrate through are formed between the adjacent net belts. The mesh belt mesh conveying mechanism is adopted to replace a common mesh pressing roller, a mesh stripping plate and a mesh supporting plate, the phenomenon that a fluffy fiber mesh is blocked when entering a needling area due to the fact that the fiber mesh rebounds due to the fact that gaps exist between the mesh pressing roller and the mesh stripping plate as well as between the mesh pressing roller and the mesh supporting plate can be avoided, the fiber mesh is clamped and synchronously conveyed between the upper conveying mesh and the lower conveying mesh, and the needling efficiency is improved. The efficiency of the needling equipment can be greatly improved, and the process speed limitation of the traditional needling equipment is broken through.

A right-angle needle-punching mechanism and a needle-punching device are provided. The right-angle needle-punching mechanism includes a first right-angle needle-punching assembly and a second right-angle needle-punching assembly, a position adjusting assembly configured to drive the first right-angle needle-punching assembly and the second right-angle needle-punching assembly approach or move away from the preform, and an angle adjustment assembly configured to change needle-punching angles of the first right-angle needle-punching assembly and the second right-angle needle-punching assembly. The angle adjustment assembly, the first right-angle needle-punching assembly, and the second right-angle needle-punching assembly are arranged on the position adjusting assembly. The first right-angle needle-punching assembly includes a first right-angle needle plate, the second right-angle needle-punching assembly includes a second right-angle needle plate, and the first right-angle needle plate and the second right-angle needle plate perform needle punching on respective sides of the right-angle part of the preform.

The invention relates to the technical field of needling machine equipment, in particular to a needling device suitable for a special-shaped composite material preform, which comprises a mounting seat, a speed reducing motor is connected to the mounting seat, the output end of the speed reducing motor is connected with a rotating shaft, the rotating shaft is connected with an eccentric through hole of an eccentric wheel, and the eccentric wheel is rotatably connected in a cylindrical needle bearing; the cylindrical needle bearing is inserted into a second through hole in the end of the push plate, the push plate is in sliding fit with the mounting base, the other end of the push plate is connected with the quick-change needle row, the other end of the quick-change needle row faces the tool, the bottom of the mounting base is connected with the horizontal moving part, and the quick-change needle row is adjusted to face the normal direction of a prefabricated body and conducts needling on the prefabricated body. The surface of the R-angle prefabricated body and the surface of the conical prefabricated body can be needled, and then the purpose of tight combination of fibers in the prefabricated body is achieved.

The polygonal pyramid type needling needle of the pre-oxidized fiber felt comprises a needle handle and a needling portion, the needle handle is matched with a needle penetrating hole in a needle plate, the needling portion comprises a needle rod and a needle tip, the needle rod forms a barb inwards from the circumferential direction, particularly, the needle rod is in a polygonal prism shape, the barb is concaved inwards from the edge of the polygonal prism, the barb faces the needle tip and is a lower barb, and the needle tip faces the lower barb. The barbs are upper barbs facing the needle handle, the lower barbs and the upper barbs are arranged around the center of the polygon prism in an array mode, and the lower barbs and the upper barbs drive pre-oxidized fibers to be interwoven up and down respectively in the needling process and the back needling process of the needling needle. On one hand, on the basis of bidirectional movement formed by the upper barb and the lower barb, needling and back needling are interwoven, and needling efficiency and quality are greatly improved; on the other hand, the contact area is changed based on the prism shape, and the offset probability during upper and lower needling is reduced based on the upper and lower barbs in the array layout, so that the needle breaking rate is reduced.

The invention discloses a non-woven fabric web conveying device with the function of compressing cotton web, which comprises left and right wallboards corresponding to each other, a cotton clamping mechanism arranged between the left and right wallboards, a cotton clamping adjusting mechanism arranged on the left wallboard for adjusting the clamping angle of the cotton clamping mechanism, a cotton clamping power transmission mechanism arranged on the right wallboard, the left end of a linkage shaft connected with the left side of the cotton clamping mechanism, a left rear conveying curtain adjusting mechanism fixed with the lower end of the rear side of the left wallboard, a right rear conveying curtain adjusting mechanism fixed with the lower end of the rear side of the right wallboard, the left middle part of the rear conveying curtain mechanism connected with the left rear conveying curtain adjusting mechanism, the right middle part of the rear conveying curtain mechanism connected with the right rear conveying curtain adjusting mechanism, the front part of the front conveying curtain mechanism supported between the left and right wallboards, the left and right middle parts supported on the ground, and the front part of the front conveying curtain mechanism protruding out of the front part of the left and right wallboards, and a conveying curtain driving mechanism arranged on the right side of the left wallboard. The device can reduce the operation intensity, shorten the downtime and meet the requirements of stepless adjustment.

The utility model relates to a needling machine technical field especially, more particularly to a needle -pricking machine of convenient loading and unloading needle, its technical scheme includes base, waste groove, fender and electric telescopic handle, the top front of base is fixedly installed with second side plate, and the top back of base is fixedly installed with first side plate, the top of first side plate and second side plate is fixedly installed with top plate, the top of base is fixedly installed with waste groove, the left side and the right side of base are fixedly installed with fender, the utility model discloses the inside installation of magnet in the protective curtain, through the mutual exertion of magnetic force between magnet and magnetite, make protective curtain close or far from the movement of mounting bracket, further make protective curtain swing frequently on the side of mounting bracket, and contact with the cloth surface transmission of driving roll, make cloth before needle -pricking processing and after needle -pricking processing, can remove the residue attached to cloth surface to guarantee the quality of device for cloth needle -pricking processing.

The application discloses a rotary body type prefabricated body automatic production line, which comprises a feeding mechanism, an automatic feeding mechanism, a prefabricated body supporting die and a needling mechanism arranged in sequence. The prefabricated body supporting die comprises a middle shaft, a left supporting die and a right supporting die with different diameters which are fixed on the middle shaft at intervals. The middle shaft is installed on a fixed frame below the middle shaft. The fixed frame is provided with the needling mechanism on the top of the fixed frame and beyond the prefabricated body supporting die. The prefabricated body supporting die is also provided with an upper tensioning wheel and a lower tensioning wheel which are parallel to the upper plane of the prefabricated body supporting die. Two vertical linear sliding rails are arranged on the fixed frame, and two groups of symmetrically arranged electric sliding blocks are installed on the two linear sliding rails. Each group of electric sliding blocks is located at the two ends of the upper tensioning wheel or the lower tensioning wheel. Through the above design, the technical problems that the existing rotary body type prefabricated body needling is manually operated and the automatic production is not realized, and the production efficiency is low are solved.

Needle-punching system (100) for producing a textile preform comprising: - a needle-punching head (110); - a robotic arm (120) mobile with several degrees of freedom, carrying the needle-punching head and configured to move the needle-punching head along predetermined trajectories and orientations; - a textile strip feeding device (130) mounted on the needle-punching head and configured to deposit the textile strip onto a support and cut it, and - a control unit (140) configured to control the robotic arm, the actuation of the needle-punching head and the depositing of the textile strip according to a predefined program for producing the textile preform.

The invention discloses a needling movement mechanism and a needling device. The needling movement mechanism comprises a fixed seat; the cylindrical cam is rotationally arranged on the fixing base and connected with the driving assembly, and a sliding groove is formed in the outer wall face of the cylindrical cam; the driven piece is arranged on the cylindrical cam in a sliding mode, and a sliding block assembled with the sliding groove in a sliding mode is arranged on the driven piece; the guide sliding assembly is suitable for limiting rotation of the driven part; and the needling head seat plate is connected with the guide sliding assembly and the driven piece, and a needle set is positioned on the needling head seat plate. A sliding groove of the cylindrical cam is matched with a driven piece sliding block, traditional hinge connection of a crank connecting rod is replaced, the problem of high-frequency needling vibration caused by a hinge gap is solved, transverse swing of a needle tip is avoided, it is ensured that a needling head base plate drives a needle set to stably reciprocate in the axis direction, and the needle tip vertically pierces in the normal direction of the surface of a prefabricated body; and the preform forming precision is improved.

The invention discloses a polyester cotton yarn needling machine, and relates to the technical field of needling machines. The needling machine comprises a needling machine body, a winding roller is arranged on one side of the needling machine body, and the needling machine further comprises a bearing table, and a plurality of supporting rollers are rotationally installed on the bearing table and used for supporting cloth; and the tension piece is mounted on the bearing table. When the cloth conveying device is used, cloth is wound through the winding roller, the conveyed cloth is supported through the supporting roller in the process, the possibility that the cloth droops too much is reduced, the cloth between the winding roller and the supporting roller is supported through the tension roller, and when the cloth is conveyed, the tension is reduced, so that the cloth is conveyed more stably. A pull spring pulls a pull rod through a driving rod, so that the pull rod pulls an auxiliary frame, then the auxiliary frame ejects a hinge frame, the hinge frame drives a tension roller to abut against conveyed cloth, gaps between the cloth and the device are reduced, the tension of the cloth is improved, and the processing effect of the device is improved.

The present invention relates to a hydroentangled shell (16), in particular a hydroentangled shell (16) for manufacturing a nonwoven fabric (12), preferably a non-porous nonwoven, by means of a web bonding process using a fluid jet (20). The housing (16) includes a body including interconnected dams (36). The body has a front side (52) that directs the fluid jet during use of the fluid jet and a back side (54) opposite the front side (52). The dam (36) defines an opening (34) configured to allow fluid to pass from the front side to the back side. The dam (36) has a shaped fluid jet rebound surface (50) configured to establish a laterally oriented rebound effect of the fluid jet. In one embodiment, the resilient surface (50) includes differently inclined portions (38, 40, 44, 44 ', 46) on the front side (52).

The utility model belongs to the needling machine technical field especially relates to a kind of needle punching machine with fixed-point dust removal, including rack, motor one, mounting bracket one, motor two, mounting bracket two, driving shaft, driven shaft, conveyer belt and winding roller, mounting bracket one is fixedly connected to the right side of rack, motor one is installed in mounting bracket one top, mounting bracket two is fixedly connected to the right side of rack, motor two is installed in mounting bracket two top, driving shaft is connected in motor two output end, driven shaft is installed in the inside of rack, conveyer belt is sleeved in the outer surface of driving shaft and driven shaft, winding roller is connected in motor one output end, rack top is provided with positioner, including moving frame, slide rail, rack, slide bar, positioner motor, connecting shaft, gear, connecting block and sliding slot.The needle punching machine with fixed-point dust removal, through moving frame, slide rail, rack, slide bar, positioner motor, connecting shaft, gear, connecting block and sliding slot moving device, cleaning cylinder, fixed cylinder, cleaning motor and dust removal brush cooperate dust removal.

A structure includes a nonwoven material comprising fibers formed using an airlay system, wherein at least 90% of the nonwoven material by weight is specified fiber. The nonwoven material can have a plurality of regions, each region of the plurality of regions having a different color than each other adjacent region of the plurality of regions.

An apparatus and method for reinforcing a nonwoven fabric comprising at least one layer of unreinforced nonwoven fabric and / or one layer of loose fibers, the apparatus having at least one transport platform configured for transporting the unreinforced nonwoven fabric and / or loose fiber layer, the transport platform having a circulating conveyor belt having a first horizontal section, followed by a second downwardly sloping section along the material transport direction, having a first cylinder with at least two water jet beams along the material transport direction, and a second cylinder with at least two water jet beams disposed above the first cylinder. The invention is characterized in that the first cylinder for receiving the nonwoven fabric or loose fiber layer cooperates with the downwardly sloping section of the transport platform such that the upper side of the unreinforced nonwoven fabric or the upper side of the loose fiber layer is located on the cylinder surface.

Systems and methods for through thickness reinforcement of a fibrous preform (110) include a needle (106) configured to move a through thickness fiber (115) along a curved path (116). The needle can be moved along the curved path and can penetrate one or more plies of the fibrous preform. The needle can move one or more through thickness fibers along the curved path (e.g., from a first ply (117) of the fibrous preform at least partially into a second ply (118) of the fibrous preform). The needle can be moved about one or more axes during through thickness reinforcement. In various embodiments, the needle is translated along an axis, and rotated about the same axis to move the through thickness fiber(s) along the curved path.

The invention provides a needling method of a plate-shaped preform, which comprises the following steps: sequentially laying carbon fiber cloth and a carbon fiber net tire on a plate-shaped foam cushion layer, fixing the laid carbon fiber cloth and carbon fiber net tire by using a hand-pricking plate, and performing pre-needling to obtain a first layer of a first unit; needling the first layer, and rotating the needle plate by a fixed angle in the positive direction during needling; the prefabricated body obtained after needling is completed is subjected to clockwise rotation by a fixed angle every time and then laid, the first step and the second step are repeated till 360-degree rotation laying needling is completed, and needling of a first unit is completed; and repeating the step 1 to the step 3, completing needling of the second unit and the third unit, taking the three units as a repeat, and continuously carrying out laying and needling until the plate-shaped prefabricated body is completed. By designing different needling angles and adjusting the needling depth of the prefabricated body, the needling needle can enter the same vertical needling depth, Z-direction needling fibers with different depths are formed, and diversity of the Z-direction structure in the prefabricated body is achieved.

The invention discloses a low-energy-consumption spunlace process for a dispersible wet-process spunlace non-woven fabric, which comprises the following steps: pulping, wet-process web forming, spunlace reinforcing and drying, opening and scattering fiber raw materials, adding water, mixing, pulping, preparing slurry, conveying the slurry into a wet-process web forming machine, dehydrating to form a wet-state fiber web with disorderly arranged fibers, and drying to obtain the dispersible wet-process spunlace non-woven fabric. A wet fiber web is fed into a spunlace machine through a web curtain, a high-pressure water tank and a spunlace head which are located above the web curtain are arranged in the spunlace machine in a front-back spaced mode, a first spunlace plate is installed at the bottom of the high-pressure water tank, a second spunlace plate is installed in the spunlace head, and the first spunlace plate is used for first-time spunlace reinforcement of the wet fiber web; the wet fiber web is subjected to secondary spunlace reinforcement by using a first spunlace plate, then the wet fiber web is subjected to secondary spunlace reinforcement by using a second spunlace plate to obtain a formed non-woven fabric, the fiber-containing water flow after spunlace is guided into a dehydration box, and the fiber-containing water flow in the dehydration box is guided into a high-pressure water tank through a water pump, so that water is saved, and secondary utilization of fibers in the fiber-containing water flow is realized.

The application provides a special-shaped alumina fiber preform and a forming device and method thereof. The preform comprises a plurality of layers of alumina fiber fabric layers and alumina fiber felt layers which are alternately stacked, the alumina fiber felt layers are prepared by calcining alumina sol nanofibers, and the alumina fiber fabric layers and the alumina fiber felt layers are combined into one by needling and the self-bonding effect of the alumina sol nanofibers. The application adopts a specific forming device and method, utilizes the synergistic cooperation of a special-shaped mold unit, an electrospinning unit, a needling unit and a conveying unit, controls the structure of the alumina fiber preform only by controlling the shape of the mold, continuously prepares the special-shaped alumina fiber preform, realizes the integral forming of the special-shaped alumina fiber preform, reduces the process and the cost, makes the special-shaped alumina fiber preform suitable for industrial production, and obtains the special-shaped alumina fiber preform which has good integrity, high mechanical properties and strong practicability.

The utility model relates to the related field of cotton quilt needling machines, in particular to a cotton quilt needling machine for cotton quilt production, which comprises a device body, the device body internally comprises a main frame, a storage component and an adjusting component, a needling frame is arranged at the top of the main frame, a control box is arranged on one side of the lower end of the main frame, and the control box is connected with the storage component. A mounting groove is formed in one side of the lower end of the main rack, a limiting hole is formed in the inner wall of the mounting groove, the storage assembly is rotationally mounted in the mounting groove, the adjusting assemblies are mounted on the two side walls of the main rack, the storage assembly comprises a storage box, a storage groove is formed in the inner side of the storage box, and the storage groove is formed in the inner side of the storage box. An extension plate is rotationally arranged in the storage groove, the adjusting assembly comprises a fixing sleeve, the storage box and the extension plate can be conveniently taken and placed, the processed end of the cotton quilt can be conveniently supported and placed, the supporting rod can be rotationally adjusted, the unprocessed side of the cotton quilt can be conveniently supported and placed, and the rear end of the cotton quilt is prevented from mopping the ground.

A method for producing a composite nonwoven fabric having at least two layers, wherein a first layer is made of long fibers, and a second layer is made of short fibers. The method includes attaching, in a production line, the short fibers of the second layer to the long fibers of the first layer in a wet laid process via a headbox. The headbox has a round flow or cross flow distributor with a rotating or static turbulence generator.

The invention discloses a production method of mask base cloth. Spun silk fibers subjected to degumming treatment are made into a spun silk net directly suitable for curing processing through an integrated net forming system comprising a continuous drying device, a free opening device and a carding net forming device. A vibration loosening device, a free loosening device and an overturning loosening device are sequentially arranged in a drying box comprising a heating device, so that full and uniform drying is synchronously realized in flexible loosening of degummed spun silk fibers, and high-quality principle preparation is provided for processing of mask base cloth; full-automatic drying of the spun silk fibers without manual operation is achieved, and then the drying efficiency of the spun silk fibers is remarkably improved; direct web forming of the dried spun silk fibers is achieved through a cotton spinning axial flow cotton slitter and a cylinder cover plate carding machine with a slivering device and a cotton box, and then efficient production of the high-quality pure spun silk mask base cloth is achieved, wherein the cotton spinning axial flow cotton slitter and the cylinder cover plate carding machine are sequentially connected with the drying device, and the slivering device is removed.

The utility model discloses a double-sided needling machine for producing papermaking felt, which belongs to the technical field of papermaking felt production, and is characterized by comprising a double-sided needling machine body, support rods are arranged on two sides of the front side of the double-sided needling machine body, and a support mechanism is arranged between the front sides of the two support rods. A suction mechanism is arranged on the front side of the supporting mechanism; the suction mechanism comprises an upper suction box, a lower suction box, a plurality of rollers and an elastic three-way pipe, and the top roller is rotationally connected to the bottom of the upper suction box. The problems that when a paper making felt moves, part of fibers are broken and fall off to form dust which is inconvenient to suck and remove, the fiber dust is easily diffused in a workshop, pollutes the working environment and harms the health of workers along with the movement of the paper making felt, and equipment failures are possibly caused by the accumulation of the fiber dust are solved.

The invention relates to a method for manufacturing an inner lining from a sandwich structure, the method comprising: producing a web (20) whose fibres (15) form an average angle (a) with respect to the longitudinal direction (X); passing the web (20) through a tacking system (28); passing the web (20) on a conveyor (34) provided with brushes; depositing a first pre-needled layer (38) of fibres (17) on the accumulated undulations; combining the accumulated undulations with the first pre-needled layer (38) by needle punching; combining the structure with a second pre-needled layer (38') of fibres (17') in order to obtain a sandwich structure (12A); and separating the sandwich structure (12A) in order to obtain two symmetrical velvet coverings (12, 12'). The web (20) is a carded web whose average angle (a) is between 5 and 10° and whose areal density is between 80 g / m 2 and 120 g / m 2 The method comprises longitudinally stretching the web 20 at a draw ratio between 1.5 and 2.

The application discloses a curved surface needling mechanism and a three-dimensional needling device containing the same. The curved surface needling mechanism can automatically needling and reinforce the curved surface, so that the automation of the fiber composite material preform curved surface part needling and reinforcement can be realized, the overall automation degree and processing efficiency of the fiber composite material preform processing are improved, the consistency and reliability of the product can be effectively ensured, and the technical problems of poor consistency and reliability and low processing efficiency caused by manual needling and reinforcement of the fiber composite material preform curved surface part in the prior art are solved. Meanwhile, the three-dimensional needling device is also provided with an automatic feeding mechanism and an automatic cutting mechanism, automatic feeding is realized, and the shape of the target fiber composite material preform can be automatically cut, so that the automation degree of the whole preform manufacturing is improved, the production efficiency is improved, and the risk of personnel injury is reduced.

A method and system for the production of a web the fibers of which form a mean angle with respect to the longitudinal direction. The method and system include the passage of the web through a looping system, the passing of the web over a conveyor provided with brushes, the deposition of a first pre-needle-punched layer of fibers over the accumulated undulations, the assembling of the accumulated undulations with the first pre-needle-punched layer by needling, the assembling of the structure with a second pre-needle-punched layer of fibers, so as to obtain a sandwich structure, and the separation of the sandwich structure so as to obtain two symmetrical velour coverings. The web is a card web with a mean angle between 5 and 10° and an area density between 80 and 120 g / m2. The method includes a longitudinal drawing of the web, with a stretch ratio between 1.5 and 2.

The invention relates to a device and a method for consolidating and transferring a nonwoven fabric from a first circulating belt (7a) to a second transport element arranged above it, with at least one water bar (8.1), wherein the first circulating belt (7a) is designed as a liquid-permeable transport belt, the second transport element is designed as a liquid-permeable drum (8) and has at least one suction opening (8c) for suctioning liquids, and the at least one water bar (8.1) is arranged below the circulating belt (7a) and is designed to consolidate the nonwoven fabric and detach it from the circulating belt (7a) by means of water jets at high pressure through the circulating belt (7a), characterized in that the water bar (8.1) with the direction of action of the water jets opposite to the material transport direction by an angle (α) of 1 - 6°, preferably rotated by 3° and shifted in the material transport direction.

A needle plate structure (10) for a needling machine (100) has a flat shape of a predetermined thickness (11) and comprises a plurality of holes (20), each hole being designated as a body (31) for receiving a needling needle (30). The needle plate (10) further comprises: a first face (40) configured to receive the angled heel (32) of the needle (30); and a second surface (50) facing the first surface (40). The first face (40) is defined by a first rigid layer (41) and the second face (50) is defined by a second rigid layer (51). The hole (20) passes through the first rigid layer (41) and the second rigid layer (51), wherein the nominal diameter (24) is equal to the diameter (34) of the body (31) of the needle (30) the hole (20) is configured to receive. Between the first rigid layer (41) and the second rigid layer (51) is a compressively rigid intermediate layer (60) spanned by the pores (20), the compressively rigid intermediate layer (60) comprising a compressively rigid expanding material (61) with a density of between 30 and 900 kg / m3, preferably between 35 and 600 kg / m3, and even more preferably between 40 and 300 kg / m3. The expansion material (61) has a compressive modulus in the elastic range of greater than 30 MPa and a compressive strength of greater than 400 kPa. The invention also comprises a needle machine (100) using such a needle plate (10) and a method of manufacturing such a needle plate (10).