1405 results about "Warp knitting" patented technology

The invention belongs to the technical field of flexible circuits, and discloses an integrally formed multilayer flexible fabric circuit which comprises a main circuit I, a branch circuit I, a main circuit II and a branch circuit II according to functional layout classification, the main circuit I is connected with the branch circuit I, the main circuit II is connected with the branch circuit II, the main circuit I is not connected with the main circuit II, and the branch circuit II is connected with the branch circuit II. The branch circuit I is not connected with the branch circuit II; the main circuit I and the main circuit II define a [-shaped area, and the branch circuit I and the branch circuit II are both located in the area. According to composition and structure classification, the warp knitting fabric comprises an insulating warp knitting fabric, and a single conductive yarn a, a single conductive yarn b and a plurality of conductive yarns X which are simultaneously positioned inside the insulating warp knitting fabric; the conductive yarn a and the conductive yarn b are respectively weft yarns which are lined into the insulated warp knitting fabric from the left side and the right side. The fabric has the advantages of light weight, softness and breathability, is good in ductility, is integrally formed during weaving, and keeps the structural integrity and the yarn continuity.

The invention relates to the field of warp knitting machines, in particular to a warp knitting machine weft selecting and laying device which comprises a weft selecting unit, a weft laying unit and yarn conveying and clamping units, the yarn conveying and clamping units are symmetrically arranged on one side of the weft laying unit, the weft selecting unit is horizontally arranged above the yarn conveying and clamping units on the two sides, and the weft selecting unit comprises a mounting frame. A plurality of line selection frames arranged in the weft selection unit and traction mechanisms on the line selection frames are matched with a line clamping plate limiting mechanism and a line clamping plate mechanism, rapid and accurate selection and switching of multiple yarns are achieved, the weft selection efficiency and accuracy are improved, a trolley assembly in the weft laying unit is in linkage design through a line pressing frame, a line pressing plate and a line clamping mechanism, and the weft laying efficiency is improved. According to the yarn conveying and clamping unit, reliable pressing and clamping of the yarn are achieved, yarn displacement in the weft laying process is avoided, the yarn conveying and clamping unit is matched with an adjustable clamping piece in a chain transmission mode, continuous and stable conveying of the yarn is achieved, and accurate control over the clamping state is achieved through an adjusting assembly and a driving assembly.

The utility model discloses a multifunctional warp-knitted ice-feeling heat-shielding sunscreen fabric which comprises first yarn and second yarn, the first yarn is full-dull special-shaped section chinlon filaments with the specification of FDY45Dtex / 48F, and the second yarn is high-temperature-resistant spandex filaments with the specification of 40dTEX. The first yarns and the second yarns are separately perforated for weaving, so that the first yarns cover the second yarns, namely, the first yarns are exposed on the inner side, and as the first yarns adopt the chinlon filaments with cool feeling, when the fabric body is in contact with the skin of a human body, the first yarns are in contact with the skin of the human body; the first yarns with larger areas are in contact with the skin of a human body, so that a better cool feeling is kept; moreover, the first yarns and the second yarns are thin, so that the fabric body is thin, and the air permeability is good; moreover, due to the fact that the first yarn and the second yarn are woven in a high-density mode, the density of the fabric body is high, ultraviolet rays are not prone to penetrating through the fabric body, and the sunscreen effect is achieved.

The invention provides a warp-knitted interval sensing fabric and a preparation method and application thereof, a pressure sensor, a pressure sensing foot pad and a plantar pressure value acquisition system, and belongs to the technical field of flexible sensors. The warp-knitted interval sensing fabric comprises an electrode layer, a monofilament interval layer and a sensing layer which are sequentially laminated; the warp-knitted interval sensing fabric is of an integrally formed structure; the electrode layer is provided with a full-penetrating double-comb structure and comprises a plurality of conductive strips which are arranged in parallel, and an insulating strip is arranged between every two adjacent conductive strips; the monofilament spacing layer is formed by mutually connecting fiber coils, and the electrode layer and the sensing layer are connected through the fiber coils; the sensing layer has a full-penetration double-comb weave and is obtained by weaving sensing yarns. According to the warp-knitted spacer sensing fabric pressure sensor, the electrode layer, the monofilament spacer layer and the sensing layer are integrally formed, the process is simple, the cost is low, and large-scale production and practical application are facilitated.

The invention relates to the technical field of soft cotton fabrics, in particular to a high-breathability soft cotton fabric and a preparation method thereof.The preparation method includes the following steps that firstly, spandex filaments serve as core yarns, the core yarns are wrapped with modified polyester yarns to be spun into spandex wrap yarns, the ratio of the spandex filaments to the modified polyester yarns is 2: 2.5, and the linear density of the spandex filaments is 20 D; and the linear density of the modified polyester yarns is 50D. According to the soft cotton fabric, the spandex filaments serve as the core wires, the spandex filaments are subjected to coating improvement through the modified polyester yarn, the 100D / 144F imitated cotton yarn is matched for warp and weft knitting, the obtained soft cotton fabric is improved in the air permeability, softness and elasticity in a coordinated and balanced mode, and the product is excellent in heat resistance, washing resistance and stability.

The invention discloses a damping mechanism and a warp knitting machine and process based on the damping mechanism, and relates to the field of damping mechanisms, the damping mechanism comprises a damping hydraulic cylinder and a damping hydraulic rod, the damping hydraulic rod is inserted in the damping hydraulic cylinder, a damping cylinder is fixedly installed on the damping hydraulic cylinder, and a flow limiting hole is formed between the damping cylinder and the damping hydraulic cylinder; an adjusting plate is connected to the damping hydraulic cylinder through a screw cylinder, a damping plate is fixedly installed on the top of the damping hydraulic rod, a damping spring is arranged between the damping plate and the adjusting plate, and the damping hydraulic cylinder and the damping hydraulic rod are sleeved with the damping spring. The base is rapidly leveled, the damping mechanisms and the warp knitting machine body are prevented from inclining, the stress of the damping mechanisms is consistent, the damping effect on the warp knitting machine body is better, the inclination degree of the base is more conveniently known, and the situation that the base is inclined due to misoperation of the leveling unit is prevented; the length of the supporting unit is prevented from being changed under the condition that the leveling unit vibrates, the flatness of the base is guaranteed, and the running stability of the warp knitting machine body is improved.

The invention relates to the technical field of warp knitting fabric production, in particular to a warp knitting fabric tension constant type winding device and a warp knitting machine. The warp knitting fabric tension constant type winding device comprises a base, and a winding roller is detachably installed on the base; the elastic tensioning assembly is arranged on the base, and the warp knitting fabric penetrates through the elastic tensioning assembly to be wound on a wind-up roller; the transmission assembly is connected with the elastic tensioning assembly and is in rolling fit with the warp knitting fabric wound on the winding roller, the transmission assembly comprises an abutting structure and a connecting structure, and the abutting structure can drive the connecting structure to act according to the thickness of the warp knitting fabric wound on the winding roller; the position of the elastic tensioning assembly is switched; and the tiling assembly is arranged on the base, the tiling assembly can pull the two sides of the warp-knitted fabric in the process that the warp-knitted fabric is wound, the winding quality is improved, and wrinkles caused when the warp-knitted fabric is wound due to the fact that the middle of the warp-knitted fabric is loose are prevented.

The invention discloses a warp-knitting-like bonding net and a net roll structure, and belongs to the field of net knitting processing. According to the warp-knitting-like bonding net, the adopted warp yarn comprises the first yarn and the second yarn which are located on the same warp direction line, the weft yarn reciprocates between the warp yarn in the warp direction, the weft yarn is arranged between the first yarn and the second yarn, and the first yarn and the second yarn are compounded together on the two sides of the connecting point. According to the scheme, a warp winding structure does not exist, and more materials are saved under the condition that the strength is guaranteed; in addition, the weft yarn is clamped between the two pieces of yarn, the warp yarn is difficult to strip from the weft yarn, and damage is not prone to occurring.

The utility model discloses a single-layer screen cloth with a multi-layer structure, which belongs to the technical field of textile and comprises a screen cloth body integrally woven by a three-jacquard warp knitting machine, the screen cloth body comprises a first layer, a second layer and a third layer from top to bottom, and the first layer, the second layer and the third layer are all woven by superfine yarns. And the first layer, the second layer and the third layer are mutually overlapped and interwoven to form a single-layer screen cloth effect.

The utility model discloses integrally-woven warp-knitted heel sheet mesh cloth, which belongs to the technical field of textile, and comprises a mesh cloth body integrally woven by a jacquard warp knitting machine, the mesh cloth body comprises a surface layer, a bottom layer and a connecting layer, and at least one area middle layer of the mesh cloth body expands a vertical space between the surface layer and the bottom layer to form a heel sheet area; and the surface layer and the bottom layer are tightly connected by the middle layer in other areas to form plain areas.

The oiling tool for the guide bar of the warp knitting machine comprises a connecting part and an oiling part, the connecting part and the oiling part are integrally formed, the connecting part is connected with the output end of a grease gun, an oiling channel communicated with the output end of the grease gun is arranged in the oiling part, and the oiling channel is communicated with the output end of the grease gun in the axial direction of the oiling part. A plurality of oil injection hole groups for injecting oil into the linear bearing penetrate through the oil injection part, the plurality of oil injection hole groups are formed by arranging a plurality of oil injection holes which are linearly arranged, and the oil injection holes are communicated with the oil injection channel. By means of the structure, when oil needs to be injected into the linear bearing, the oil injection part is inserted into the linear bearing, grease is injected into the oil injection channel through the grease gun, the grease is injected into the linear bearing through the oil injection holes along the oil injection channel, and therefore the grease can be prevented from being polluted by two hands, and the grease can be injected into the linear bearing through the oil injection holes under the matching of the arrangement mode of the multiple oil injection holes. Oil can be conveniently filled, the problems of oil leakage and non-uniform oil filling are avoided, and the use amount of butter can be saved.

The invention discloses special cloth for a single-sided terry bath foaming towel and a weaving method of the special cloth. The terry cloth comprises a three-layer structure integrally woven by a warp knitting machine, wherein the three-layer structure comprises a base layer and 100D / 36F polyester filament yarn warp knitting chain weave; the binding layer is a 100D / 96F polyester filament chain stitch and penetrates through the substrate layer; the looped pile layer is of a vertical looped pile structure formed by 300D / 10F polyester filaments, the height of looped piles is 7-8 mm, and the density of the looped piles is 25-30 / cm; the thickness ratio of the base layer to the binding layer to the looped pile layer of the three-layer structure is 0.6: 1: 7. The three kinds of yarns with different thicknesses are combined to form a three-layer structure, the three-layer structure is directly formed through warp knitting, a traditional fuzzing roller is not needed for fuzzing, the upright performance of a looped pile is guaranteed, it is guaranteed that the looped pile does not generate monofilament breakage and is stable in structure, and the foaming performance and the weaving feasibility are balanced.

The invention relates to the field of warp knitting machines, in particular to a weft selecting trolley with a yarn tension adjusting function, which comprises a weft selecting trolley unit and can monitor the tension state of yarns in real time by arranging a capacitive proximity switch: when the yarns are loose, the capacitive proximity switch does not send out a signal, a system automatically triggers a tension adjusting mechanism, and the tension state of the yarns is adjusted; the assembly mounting plate is pulled through the driving mechanism to ensure that the yarn is always in a tensioned state, the yarn loosening phenomenon in the weft laying process is effectively avoided, the tensioning of the yarn can be automatically adjusted, all the yarn clamping units can be controlled through the adjusting unit to clamp the yarn, and the yarn laying efficiency is improved. Synchronous work of yarn clamping of the clamping assemblies and the capacitive proximity switch is achieved through the adjusting piece, single adjustment of the single assembly mounting plate in the yarn clamping state can be achieved through cooperation of the adjusting piece and the guide frame, the synchronous adjusting plate drives the clamping assemblies on the two sides to synchronously move through the limiting sliding grooves, and it is guaranteed that clamping force is evenly distributed; yarn deviation or distortion is avoided, and weft laying quality is improved.

The utility model provides a quick-dry cool stiff and smooth warp knitting fabric, which is formed by knitting at least two guide bars GB1 and GB2, yarns adopted by the guide bar GB1 are high mechanical elasticity synthetic fiber filaments with circular or special-shaped sections, the crimp shrinkage rate of the high mechanical elasticity synthetic fiber filaments must be greater than 25%, and the crimp shrinkage rate of the high mechanical elasticity synthetic fiber filaments must be greater than 25%. Yarns adopted by the GB2 guide bar are elastic polyurethane filaments, the thickness of the high-mechanical-elasticity synthetic fiber filaments is 20-50D, and the thickness of the elastic polyurethane filaments is smaller than or equal to 55D. The high-mechanical-elasticity synthetic fiber filaments with the special-shaped cross sections are adopted, the contact area between fibers and air is large, diffusion and evaporation of water on the surfaces of the fibers are facilitated, and a wearer has the experience of quick-dry and cool feeling after wearing the fabric; meanwhile, due to the high crimp rate of the high-mechanical-elasticity synthetic fiber filaments, the fabric can have high stiffness and smoothness; the fabric obtained by weaving the high-mechanical-elasticity synthetic fiber filaments and the elastic spandex filaments has good elasticity, and the wearing comfort of a user is improved.

The invention discloses a wireless warp knitting machine capable of freely switching a jacquard comb and a ground comb, and relates to the technical field of warp knitting machines. The warp knitting machine comprises a warp knitting machine body and an inserting frame used for assembling a wireless jacquard guide bar assembly or a ground bar guide bar assembly, the wireless jacquard guide bar assembly and the ground bar guide bar assembly are each provided with a connecting assembly, and the warp knitting machine body is connected with the wireless jacquard guide bar assembly or the ground bar guide bar assembly through a plug pin for knitting. The wireless jacquard guide bar assembly comprises a wireless jacquard guide bar and a piezoelectric ceramic piece, a plurality of wireless jacquard needles are arranged on the wireless jacquard guide bar, clamping balls are distributed on the surface of the plug pin, and the inner sides of the clamping balls are reset through springs. According to the warp knitting machine, the insertion frame is arranged, the wireless jacquard guide bar assembly or the ground bar guide bar assembly is selectively assembled on the cradle according to requirements, and particularly, the insertion frame is connected with an insertion opening in the insertion frame through a plug pin structure. The warp knitting machine table has compatibility, and multiple purposes are achieved.

The utility model relates to the field of spinning, in particular to a woven fabric traction adjusting device for a warp knitting machine, which comprises a machine shell, a machine frame, a traction device and a control device, and a conveying roller is arranged on the inner side of the machine shell; the anti-deformation mechanism is arranged on the inner side of the machine shell, and the surface of the anti-deformation mechanism penetrates to the exterior of the machine shell; wherein the anti-deformation mechanism comprises an anti-wrinkling assembly arranged on the inner side of the machine shell, and an edge shifting assembly is arranged on the surface of the anti-wrinkling assembly; when the woven fabric is pulled, the central area of the woven fabric can be smoothed under the action of the crease-resistant assembly, the device drives the smoothing plate to be attached to the lower inclined face of the woven fabric by manually adjusting the position of the positioning rod, the pulled woven fabric is supported in an auxiliary mode, wrinkles generated in the pulling process of the woven fabric are smoothed, and the smoothness of the woven fabric is improved. Therefore, wrinkles in the middle area of the woven fabric are reduced in the traction process, and deformation of the woven fabric caused by traction is reduced.

The invention relates to the technical field of warp knitting machines, in particular to a warp knitting machine guide bar transverse moving mechanism which comprises a mounting frame mounted on a warp knitting machine, a transverse moving supporting plate and a plurality of guide bar bases used for mounting guide bars are arranged on the mounting frame, a rotating shaft is horizontally mounted on the transverse moving supporting plate, and when the warp knitting machine guide bar transverse moving mechanism is used, the rotating shaft is horizontally mounted on the guide bar bases. The transverse moving mechanism is mounted on the warp knitting machine through the mounting frame, the driving motor in the first driving assembly is started, the output end of the driving motor drives the first synchronous wheel to rotate, then the second synchronous wheel and the rotating shaft are driven by the synchronous belt to synchronously rotate, and the rotating shaft 4 rotates to drive the guide roller and the driving wheel to synchronously and continuously rotate at a constant speed; the guide roller rotates to drive the transmission shaft to slide on the transverse moving supporting plate in a reciprocating mode through the guide groove and the wobble wheel on the guide roller, then the sliding square shaft and the guide bar base on the sliding square shaft are driven to slide synchronously in a reciprocating mode, the distance and the speed of transverse movement of all the guide bars each time can be kept consistent, and then the quality stability of fabric is guaranteed.

The utility model relates to the field of warp knitting machines, in particular to an automatic gear opening adjusting device which comprises a rack, a first swing shaft, a second swing shaft, a first knocking-over support, a second knocking-over support, a first knocking-over plate, a second knocking-over plate, a controller, a first servo motor, a second servo motor, a first eccentric adjusting mechanism and a second eccentric adjusting mechanism. The first knocking-over support and the second knocking-over support are directly controlled by the servo motor to independently swing, so that the opening of the knocking-over plates is adjusted, the two knocking-over plates can be synchronously adjusted, a certain knocking-over plate can also be singly adjusted, different scene requirements can be met, the adjusting mode is flexible, diversified and convenient, and the working efficiency is improved. And the displacement of the knocking-over bar can be accurately adjusted through electric control and adjustment of the servo motor.

The utility model discloses opposite-pull circular hole jacquard warp knitting mesh cloth, which belongs to the technical field of textile, and comprises a mesh cloth body integrally knitted by a jacquard warp knitting machine, the mesh cloth body comprises a surface layer, a bottom layer and a middle layer, the surface layer of the mesh cloth body is provided with a plurality of regular circular lifting holes, and the regular circular lifting holes are formed by opposite-pull knitting of jacquard guide bars in the opposite direction.

The invention relates to the field of warp knitting machines, in particular to an anti-winding winding device for a warp knitting machine, which comprises a mounting base, and a plurality of positioning blocks are symmetrically arranged on the surfaces of the two side walls of the mounting base. The yarn is limited in the spiral ring to move, so that the phenomenon that the adjacent yarn is overlapped together and is wound is avoided, the arranged limiting units are matched with the interval adjusting plate, after vertical displacement is conducted, the guide column can pull each limiting unit to transversely and linearly move on the sliding rod, and therefore the yarn is limited to move in the spiral ring. According to the yarn winding device, the spacing of each limiting unit is adjusted synchronously, so that when the yarn works, the spacing of each limiting unit can be separated, the section of yarn entering the limiting units is prevented from being wound together due to the narrow spacing, and yarn winding of the yarn winding device in the working process is avoided.

The invention relates to the field of yarn tension detection, in particular to a single-strand yarn tension detection mechanism of a warp knitting fabric for automobile seat base cloth, which measures the tension of the single-strand yarn of the warp knitting fabric for the automobile seat base cloth through the cooperation of a tension detection unit and a yarn pressing frame, so that the accuracy of a measurement result can be ensured; the yarn clamping mechanism is matched with driving of a second synchronous plate, so that when the yarn pressing frame moves, the yarn clamping mechanism can synchronously move, the yarn is fixed and divided into two sections to be measured, the adjusting mechanisms on the two sides are matched with the yarn sensing mechanism, it is guaranteed that the yarn can be measured when the yarn is tightened, and the situation that the measurement result is affected due to the fact that the yarn is not tightened can be prevented; in this way, two tension values can be measured at a time, and after yarn measurement results of different sections are integrated, the accurate single-strand yarn tension value of the warp knitting fabric for the automobile seat bottom cloth can be obtained.

The invention discloses a non-woven binding net and a net roll, and belongs to the technical field of net weaving. According to the non-woven binding net, multiple pieces of warp yarn are arranged in parallel in the warp direction, and weft yarn is folded back and forth between the warp yarn and extends in the warp direction; the warp yarns comprise lamellar first count yarns and lamellar second count yarns, the weft yarns are lamellar and stacked between the first count yarns and the second count yarns, and the lower surfaces of the first count yarns and the upper surfaces of the second count yarns are subjected to hot-pressing compounding, so that the weft yarns are fixed; the denier number of the first yarn and the denier number of the second yarn are both 350-560 deniers, the gram weight of the formed binding net is 4.5-7.0 g / m < 2 >, the interval between every two adjacent warp yarns is 10-35 mm, under a certain width, the tensile force capable of being borne in the warp direction is not smaller than 270 kg, and the limit of an existing warp knitting material is broken through. In addition, the bonding net does not have a warp winding structure, the strength can be remarkably improved, stripping of the warp and the weft is avoided through a compounding mode, and more materials are saved.

The invention relates to a TPU coating pneumatic membrane material and a preparation method thereof, belongs to the technical field of square cabins, and solves the problem of poor puncture resistance of a square cabin pneumatic membrane material in the prior art. The fabric comprises an outer layer, an inner layer and a middle layer, the middle layer is a three-dimensional warp knitting fabric layer, the outer layer is a TPU and aramid chopped fiber composite layer, and the inner layer is a TPU mask layer. On the other hand, the invention provides a preparation method of the TPU coating pneumatic membrane material, and the preparation method comprises the following steps: step 1, weaving and forming the three-dimensional warp knitting fabric; step 2, TPU surface modification and interface strengthening; and 3, spraying the inner layer and the outer layer to form a coating. The anti-puncture performance of the pneumatic membrane can be improved, and the anti-puncture performance is improved from 800 N to 1400 N or above.

The invention discloses a glass fiber reinforced plastic wiredrawing plate and a processing method thereof, the glass fiber reinforced plastic wiredrawing plate comprises a glass fiber reinforced plastic plate matrix, the glass fiber reinforced plastic plate matrix comprises a fiber reinforced matrix layer and a gel coat layer on at least one surface of the fiber reinforced matrix layer; at least one surface of the glass fiber reinforced plastic plate substrate is provided with a wire drawing structure; the fiber-reinforced matrix layer is formed by infiltrating fibers in matrix layer resin, and the fibers in the fiber-reinforced matrix layer are fiber chopped yarns; and any one or combination of fiber continuous yarns, fiber surface felts, fiber felts, fiber stitch-bonded felts, fiber composite felts, fiber cloth, fiber multi-axis cloth, fiber warp-knitted cloth, fiber composite cloth and fiber woven products. By arranging the wire drawing structure, the surface roughness is improved so as to enhance the bonding force, and the pollution and bonding problems caused by mechanical polishing are avoided; the processing method simplifies the process, reduces the cost, does not need complex corona treatment, provides a good contact surface for bonding of the glass fiber reinforced plastic plate and other materials, and guarantees the bonding effect.

The utility model relates to the technical field of yarn adjustment, in particular to a warp knitting machine yarn tension self-adaptive adjusting mechanism which comprises a main machine body, the main machine body can be installed on a warp knitting machine and used for adjusting yarn tension, and a tension adjusting system capable of adjusting the yarn tension is arranged in the center of the main machine body. The tension adjusting system comprises a plurality of tension fine adjustment assemblies capable of finely adjusting yarn and an adjusting assembly used for driving the tension fine adjustment assemblies to rotate, and further comprises a rotating assembly arranged on the main machine body and used for driving the tension fine adjustment assemblies and the adjusting assembly to move. The rotating assembly comprises two rotating plates rotationally arranged on the main machine body. Through the synergistic effect of the tension fine adjustment assembly, the adjusting assembly and the rotating assembly, the yarn tension adjusting device can adjust the tension of yarn in a self-adaptive mode, and is simple in adjusting structure and rapid in adjustment.

The utility model discloses a concave-convex warp knitting screen cloth with local transparent convex areas, which belongs to the technical field of textile, and comprises a screen cloth body integrally knitted by a single jacquard warp knitting machine, the screen cloth body comprises a surface layer, a bottom layer and a middle layer, and the surface layer is provided with at least one transparent convex area.

The utility model discloses a yarn tidying mechanism of a yarn flattening feeding type warp knitting machine for fabric preparation, which comprises a base, two fixing plates, a dust suction box and a U-shaped plate are fixedly connected to the top of the base, a fixing rod is fixedly connected between the two fixing plates, a yarn guide hole is arranged on the outer side of the fixing rod, and a cushion block is fixedly connected to the top of the dust suction box. The conveying position of yarn penetrating through the yarn guide hole is guaranteed through the yarn arranging ring on the cushion block, the yarn is prevented from deviating from the conveying position, then the transmission assembly rotates between the rotating shaft and the inner wall of the U-shaped plate, the yarn guide wheel feeds the yarn into the warp knitting machine, meanwhile, the infrared sensor monitors the state of the yarn in real time, and when it is detected that the yarn is broken, the yarn is conveyed to the warp knitting machine. When the yarn is fed, the alarm sends out a signal to ensure timely supplementary feeding of the yarn, then dust and flying wadding on the base are sucked into the dust suction box through the dust suction assembly, yarn breakage or slub formation caused by the dust and the flying wadding is avoided, the yarn feeding flatness is ensured, and the fabric preparation efficiency and quality are further improved.

The invention relates to the field of weaving technology, and in particular to a warp knitting imitating woven jacquard process manufacturing method, mesh cloth and shoe upper, including a comb setting step, a warping step, a yarn threading step, and a weaving step. The invention not only has the appearance and texture of woven fabrics, a flat cloth surface, good drape and other advantages, but also has the advantages of warp knitting fabrics being crisp, good anti-loosening property, good extensibility, good dimensional stability, and not easy to have fringes. During weaving, due to the good anti-loosening property, the coil loosening defect caused by broken yarn and holes in weft knitting fabrics can be effectively solved. The invention has high output, low price, high speed, and the warp knitting fabric is not easy to have fringes, which can effectively solve the fringing defect of woven fabrics and break through the limitations of traditional processes.

The invention discloses a jacquard vamp material based on bio-based degradable polylactic acid (PLA) and a preparation method thereof, and relates to the technical field of shoe materials. The jacquard vamp material is of a three-layer jacquard structure formed by integrally weaving PLA composite filaments through a jacquard warp knitting machine. The PLA composite filament is prepared from the following raw materials in parts by weight: 80-95 parts of polylactic acid (PLA) slices, 5-15 parts of poly (butylene adipate / terephthalate) (PBAT), 3-8 parts of a flexibilizer, 1-3 parts of a compatilizer, 0.5-2 parts of an anti-hydrolysis agent and 0.5-1.5 parts of a lubricant. According to the invention, the bio-based PLA is used as a main raw material and is matched with degradable auxiliaries such as PBAT, so that the whole vamp material can be completely biodegraded under a composting condition, the problem of environmental pollution of a traditional vamp is fundamentally solved, and meanwhile, through blending modification of PBAT and the flexibilizer, the flexibility and impact resistance of the PLA material are remarkably improved, and the vamp material has good application prospects. The requirements of the vamp material on softness, wear resistance and durability can be met.

The present invention relates to a warp knitted mesh cutting process and cutting equipment for automobile seats, and relates to the field of laser cutting technology. The process comprises a frame, a laser cutting system, a residual material conveying system and a finished fabric conveying system. The finished fabric conveying system comprises a finished fabric grabbing and moving machine, a grabbing and lifting device, a grabbing device, a dust collecting device, a negative pressure feeding pipe and a rotating device. The dust collecting device is installed on the finished fabric grabbing and moving machine, the negative pressure feeding pipe is connected to the dust collecting device, the grabbing and lifting device is installed on the finished fabric grabbing and moving machine, the rotating device is installed at the output end of the grabbing and lifting device, the grabbing device is installed at the bottom of the rotating device, the grabbing device is slidably installed in the dust collecting device, the grabbing device is lifted and lowered along the dust collecting device under the traction of the grabbing and lifting device, the rotating device drives the grabbing device to rotate, the dust collecting device is in the shape of a trumpet with a downward opening, and a vibration device is installed on the dust collecting device to eliminate black ash generated during the cutting process and prevent pollution.