406results about "Needling machines" patented technology

The invention discloses a preparation method of composite geotechnical cloth, belongs to the technical field of geotechnical material processing, and solves the problems of insufficient interlayer bonding strength, poor permeation stability and incapability of adapting to regional differentiation mechanical requirements in the traditional process. According to the method, two layers of synthetic fiber geotextile and a layer of polymer geomembrane are selected, and a gradient needling machine is adopted to implement a double-station gradient needling process, specifically, thick needle needling pre-reinforcement is synchronously conducted on the upper side and the lower side till the membrane thickness is 50-60% of the depth, then fine needle needling finishing is conducted till the membrane thickness is 70-80% of the depth, the needling density is preset to be 20-70 needles / cm according to different stress areas of a membrane material, and the needling density is 20-70 needles / cm according to different stress areas of the membrane material; in the process, data of needling depth, needling density and membrane material tension are collected in real time through a dynamic monitoring system, parameters are automatically adjusted, and finally a stable structure is formed through heat setting treatment at 120-140 DEG C for 8-12 minutes. The composite geotextile prepared by the method has a high-strength bonding interface and excellent anti-seepage performance, and is suitable for the engineering fields of water conservancy project anti-seepage, road base reinforcement, refuse landfill isolation and the like.

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.

A variable-pitch synchronous needling mechanism comprises a rack, the rack is connected with a rotating table, the rack is provided with a variable-pitch adjusting assembly above the rotating table through a supporting arm, the variable-pitch adjusting assembly is connected with a telescopic needling plate through a guide rod, and the telescopic needling plate is provided with a plurality of needle holes. A driving assembly used for controlling the needling plate to move is arranged in the variable-pitch adjusting assembly, and the variable-pitch adjusting assembly is connected with the rotating table through a transmission system. According to the variable-pitch synchronous needling mechanism provided by the utility model, the needling pitch can be flexibly adjusted, the requirements of different products on the needle pitch are met, the processing requirements of different carbon-carbon preforms can be met, and the diversity and the quality of the products are improved. In addition, the uniformity of the needling effect can be effectively guaranteed through synchronous needling and needle pitch actions, so that the damage and defects of the carbon-carbon preform are greatly reduced. The production efficiency is improved, and the production cost is reduced.

The utility model belongs to the technical field of non-woven equipment, and particularly relates to a high-elastic interlayer non-woven fabric production device. The high-elastic interlayer non-woven fabric production device comprises a fiber net conveying belt, a heating device, a needling device, a cooling device and a cloth roller which are sequentially arranged, and the fiber net conveying belt is at least provided with three synchronous conveying channels. Based on the non-woven fabric, fiber entanglement consolidation can be achieved through needling, and the non-woven fabric of a sandwich structure is obtained.

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 a surface fibrillated aramid fiber non-woven fabric treatment system, which is based on a composite process of chemical acid treatment splitting and mechanical spunlace splitting, can effectively improve the fibrillation degree and the filtering efficiency of a needled aramid fiber non-woven filter material, and simultaneously reduces the loss of treated fibers and the influence on the physical properties of the filter material. The treatment process is simple, and the treatment liquid can be recycled for multiple times. The treatment system comprises a needling device, a pretreatment pool, a first spraying device, an acid treatment pool, a second spraying device, a spunlace device and a drying device which are sequentially arranged in the direction of an assembly line. The needling device is used for preparing aramid fibers fed into the needling device into aramid non-woven fabric; pretreatment liquid is contained in the pretreatment pool and is used for cleaning the aramid fiber non-woven fabric; a chemical splitting reagent is contained in the acid treatment tank and is used for dipping the aramid fiber non-woven fabric; the spunlace device is used for performing spunlace processing on the aramid fiber non-woven fabric.

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 method for producing a composite material part comprising —a step of producing a preform formed of unidirectional continuous fibers oriented in at least one fiber orientation, —a step of applying non-woven filaments to the preform, and —a step of needling the filaments by means of a needling device comprising a plurality of needles, each needle being provided with a notch extending along a notch axis perpendicular to the main longitudinal axis of the needle, or several notches each extending along a notch axis perpendicular to the main longitudinal axis of the needle, the notch axes being parallel to each other, the needles and the preform being arranged so that the notch axes form a non-zero angle with the fiber orientation.

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 utility model discloses a spindle box type needling machine with needles convenient to replace, and relates to the technical field of needling machines. The spindle box type needling machine facilitating needle replacement comprises a supporting frame, an assembling plate is arranged in the supporting frame, a mounting groove is formed in the lower surface of the assembling plate, a mounting plate is fixedly connected to the top wall of the mounting groove, a mounting block is fixedly connected to the lower surface of the mounting plate, and sliding grooves are formed in the surfaces of the left side and the right side of the mounting block correspondingly; the interiors of the two sliding grooves are slidably connected with clamping blocks correspondingly, the inner walls of the left side and the right side of the supporting frame are rotationally connected with threaded rods correspondingly, the two threaded rods are arranged in a mirror image mode, and the close ends of the two threaded rods rotationally penetrate into mounting blocks correspondingly, so that when pricking needles are replaced on a large scale, the needle plate can be taken down conveniently, and the pricking needles can be replaced conveniently. And therefore, the pricking needle can be conveniently detached in a special environment, and the problems that workers are injured and the replacement progress is slow due to the fact that the detaching space is narrow and repeated for multiple times are solved.

The invention discloses a carbon fiber preform double-arm human-shaped needling robot system and a needling method, the system is divided into a mechanical structure module, a decision module and an algorithm module, the whole process from preform laying to needling is automatically completed through automatic equipment and self-set algorithm participation, the dependence on manual operation is greatly reduced, and the needling efficiency is improved. And high-efficiency automatic operation of the carbon fiber preform is realized. According to the design and implementation, the robot system is controlled through a double-arm cooperative control and collision avoidance algorithm, a sensing and feedback mechanism and technological parameter self-adaptive optimization, multi-axis linkage control, intelligent sensing and a deep learning algorithm are fused, real-time optimization can be conducted when complex tasks are executed, full-automatic operation of the needling module is achieved, and the working efficiency is improved. And the method has high flexibility and adaptivity.

The utility model discloses a device for puncturing a cotton piece, which comprises a rack and a controller, and a humidifying chamber, a high-pressure chamber and a drying chamber are arranged on the rack. According to the device, a traditional needling technology is abandoned, high-pressure air is adopted as a medium, when a humidified cotton piece passes through a high-pressure chamber, the cotton piece is punctured through the high-pressure air sprayed out of a high-pressure box, and double-face puncturing of the cotton piece is achieved through the special space layout of a first conveying mesh belt and a second conveying mesh belt; strong pressure enables fibers on the surface of the cotton piece to move to the deep layer of the cotton piece, fibers in the fiber web are mutually entangled, the tension of the cotton piece is improved, the cotton piece is finally subjected to air high-pressure puncture and high-temperature treatment, the shape of the formed cotton piece is changed, the cotton fiber reaches ideal throwing degree, the tension reaches the required standard, and meanwhile, due to no strong intervention of physical felting needles, the cotton piece can be well fixed. And the fluffy feeling of the surface of the cotton piece cannot disappear.

The invention relates to the technical field of carbon fiber product processing, and solves the problems of uniform parameters, no real-time density feedback, low needling precision, lack of dynamic regulation and control, lack of vibration and thermal management, poor process stability, single needling needle design and limited pore regulation and control dimension of a traditional process. The depth-controllable needling method for regulating and controlling the PAN-based pre-oxidized fibrofelt pore structure comprises the following steps which are executed in sequence: pretreating a fibrofelt, and performing real-time scanning through a beta-ray density instrument to obtain a density distribution diagram; regional needling parameter matching: a plurality of groups of needling assemblies are automatically divided according to a density distribution diagram; executing dynamic needling, and synchronously introducing into a water-based cooling system; and performing closed-loop depth calibration, and updating the density-acupuncture depth mapping model based on the resistance data. According to the method, dynamic, accurate and self-adaptive adjustment of acupuncture parameters is achieved, the consistency, uniformity and controllability of pore structure regulation and control are remarkably improved, and the multi-layer pore structure is optimized.

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 present invention discloses a preparation process and production equipment for a water-based polyurethane sports shoe leather base, which belongs to the technical field of microfiber leather preparation of multi-layer base cloth. In the preparation process of the water-based polyurethane sports shoe leather base, a plurality of belt pressure wheel groups that can be overlapped are used to press the multi-layer base cloth. The multi-layer base cloth is arranged in an S shape and wound in the plurality of overlapping belt pressure wheel groups. Each belt pressure wheel group includes a swinging base cloth stretching component that can stretch the surface of the multi-layer base cloth from the inside to the outside, a dynamic needling component that can adjust the spacing between the circular belts and thus adjust the needling spacing according to actual needs, and a base cloth correction component. The base cloth correction component can adjust different transmission speeds when the transmission speeds of different cross sections of the multi-layer base cloth are different. The belt pressure wheel group can select different numbers according to actual needs, and cooperate with the multi-layer base cloth to be arranged and wound in an S shape, so that the multi-layer base cloth can be stretched and needled on both sides.

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 present invention discloses a needling mechanism, a needling machine and a method for replacing needles of an automotive carpet, mainly relating to the field of carpet needling. It includes a pressing plate assembly and a needle plate assembly with an up-and-down lifting stroke; the needle plate assembly includes a mounting frame, a pressing plate, a quick-installation plate and a barbed needle. The pressing plate is located below the mounting frame and its height position relative to the mounting frame is adjustable. The quick-installation plate is hinged to the mounting frame. Equally spaced strip-shaped grooves are provided on the quick-installation plate. A strip-shaped through hole corresponding to its length direction is provided in the center of the bottom of the strip-shaped groove. The width of the strip-shaped through hole is adapted to the diameter of the barbed needle. A rectangular block corresponding to the width of the strip-shaped groove is provided at the top of the barbed needle. The top surface of the rectangular block is located above the opening of the strip-shaped groove. The bottom surface of the pressing plate is in contact and cooperation with the top surface of the rectangular block. The pressing plate assembly has a flat plate below the barbed needle, and a needle hole is provided at the installation position of the flat plate corresponding to the barbed needle. The beneficial effect of the present invention is that the installation and maintenance of the barbed needle are more labor-saving, fast, and the fixation is reliable and firm.

A needle machine (2) according to the invention comprises a needle bar (8) with a plurality of needles (10), a hold-down device (22) for holding down and a support device (26) for supporting the sheet structure (4), as well as a monitoring device (41, 42) which is configured to monitor the positioning of the plurality of needles (10) relative to the hold-down device (22) and / or to the support device (26). Methods according to the invention include monitoring the positioning of the plurality of needles (10) relative to the hold-down device (22) and / or support device (26) by means of a monitoring device (41, 42) after a needle board (12) has been inserted into the needle machine (2) or during operation of the needle machine (2).

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.

An end effector for needling a fibrous preform includes a body (or head), a plurality of articulating presser feet mounted to the body and moveable with respect to the body, and a plurality of articulating needles mounted to the body and moveable with respect to the body. The needles may be configured to move between an extended position and a retracted position. The presser feet may be configured to move between an extended position and a retracted position. The end effector presser feet may conform to complex geometries of a fibrous preform. The end effector may control needling depth, needling density, applied tension and / or pressure on the fibrous preform, and needle angle.

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.