43results about "Artificial thread manufacturing machines" patented technology

The present application relates to the field of large tow carbon fiber continuous production, and discloses an oiling method of large tow precursor.The method comprises the following steps: dividing the large tow precursor into alternate flat sections and folded and bent sections along the length direction, first oiling the large tow precursor, and controlling the oil content of each section to be the same;second oiling the flat sections of the large tow precursor, and controlling the oil content difference between the flat sections and the folded and bent sections of the large tow precursor to be within 0.1% when the large tow precursor is folded and packed and then unwound.After the large tow precursor is oiled by the oiling method provided by the present application, the large tow precursor is flat and folded and packed, and when the large tow precursor is unwound to an oxidation furnace, the oil content difference between the flat sections and the folded and bent sections of the large tow precursor unwound from the box is within 0.1%, the single fibers of the folded and bent sections of the large tow precursor do not adhere to each other, the large tow precursor is easy to separate, the amount of carbon fiber hair is reduced, the strength of the carbon fiber is improved, the carbon fiber is soft and supple, and does not become hard and brittle.

The invention relates to a melt spinning device for producing melt-spun filaments, in particular filaments comprising polyamide, which release monomer and / or oligomer compounds during extrusion, having a spin beam for extrusion and a cooler for cooling the synthetic filaments, an extrusion zone being formed between the cooler and the spin beam via which the filaments are fed to the cooler, a guide ring for feeding the filaments into the cooler and for collecting monomer and / or oligomer compounds which can form deposits being located at an inlet opening of the cooler, the guide ring having a removal device for removing deposits which acts on predetermined sides of the guide ring; and to a related method for producing melt-spun filaments, in particular filaments comprising polyamide, which release monomer and / or oligomer compounds during extrusion, which can form deposits on internal components of the melt spinning device.

A manufacturing process includes combining a liquid resin with a liquid reactive cross-linking composition to form a reactive core composition. The manufacturing also includes contacting the reactive core composition with a sheath composition including a carrier polymer in a solvent. The manufacturing process further includes wet spinning the reactive core composition with the sheath composition to form a sheath-core fiber including a core including at least one continuous fiber of a reaction product of the liquid resin and liquid cross-linking composition and a sheath surrounding the core. The cross-linking composition reacts with the resin during the wet spinning. The sheath includes the carrier polymer. A continuous poly(glycerol sebacate) urethane (PGSU) fiber comprising PGSU and a continuous PGSU fiber forming system are also disclosed.

The utility model belongs to electrospinning technical field relates to a kind of Janus nanofiber electrospinning device, liquid storage module, including N liquid storage tank, for storing spinning solution;Wherein, N≥2;Spinning module, its top is provided with recess, recess is separately provided with multiple sharp copper bars in, for the recess is divided into N area, each area bottom is provided with the liquid supply passage through recess bottom and spinning module side wall;Liquid supply module, including N liquid supply pump, each liquid supply pump is connected one liquid storage tank and one liquid supply passage by conduit, for the spinning solution in N liquid storage tank is transmitted to the N area in recess by liquid supply passage;High voltage power supply, anode is connected with each sharp copper bar, cathode is connected with receiving module, for forming high voltage electric field between sharp copper bar and receiving module, so that the spinning solution in each area in recess generates jet at the top of sharp copper bar and forms nanofiber.

The application discloses a kind of chemical fiber spinning system roll body cleaning device and spinning system, including, support component, be set in the roll body around scrollable;Cleaning component is connected with support component, and cleaning component is contacted with the lateral wall of roll body;Spray component is connected with support component or cleaning component, for spraying lateral wall and / or cleaning component of roll body.The beneficial effects brought by the application: by increasing spraying device, the humidity of the contact surface of roll body and cleaning component is improved, the temperature of cleaning component and lateral wall of roll body is prevented from rising, the antistatic effect is improved, and the lubricating effect is played, the friction between the surface of cleaning component and roll body is reduced, and then the wear between the two is reduced, so that the surface finish of roll body remains good, and the needs of long-period production operation are satisfied.

The utility model provides a kind of small desktop type spinning draft device, including extrusion mechanism, cooling mechanism, oiling mechanism, draft mechanism and winding mechanism.Extrusion mechanism, cooling mechanism, oiling mechanism, draft mechanism and winding mechanism are connected in rack side, extrusion mechanism, cooling mechanism and oiling mechanism are set from top to bottom, and draft mechanism is set between winding mechanism and oiling mechanism.Cooling mechanism and oiling mechanism are provided with silk pressing mechanism, and oiling mechanism downside is equipped with guide mechanism.Extrusion mechanism extrudes tows, and tows are cooled after cooling mechanism, and then oiling is carried out in oiling mechanism, and after oiling, tows are reversed after guide mechanism, and then draft in draft mechanism, and after draft, tows are wound by winding mechanism.The utility model integrates extrusion, cooling, oiling, draft, winding and other multi-process, realize desktop miniaturization, small floor area, and adapt to small batch, multi-batch research and development production demand.

An air-jet type spinning device wherein the spinning starter system comprises the following steps: - pneumatic supply of the ejector or Venturi nozzle (36) at an initial maximum pressure p_max so as to recall the fibres within the a fibre introducer (20), - feeding of the fibres into the spinning chamber (16) and then in the spindle (24) of the spinning chamber (16) ; - pneumatic supply of the spinning chamber (16) with a main nozzle (40) so that the two jets of compressed air overlap each other, - gradual switching-off of the ejector or Venturi nozzle (36) according to an average pressure gradient in absolute value of less than 6 bar / s.

The application provides an acid bath circulating system and method in a viscose staple fiber production process. The acid bath circulating system in the viscose staple fiber production process comprises a circulating main pipe, a filter pump, a filter system, a high-level tank and an acid distribution package. The filter pump is connected with the circulating main pipe through a pipeline. The filter system is connected with the filter pump through a pipeline. The high-level tank is connected with the filter system through a pipeline. The acid distribution package is connected with the high-level tank through a high-level overflow pipe. The acid bath enters the high-level tank through the filter system. The acid bath in the high-level tank enters the acid distribution package through the high-level overflow pipe. The acid bath is used for spinning and drawing after the flow is adjusted by the acid distribution package. The process is simple and feasible, and the work efficiency is high. The overflow of the high-level tank is used for spinning and drawing. The spinning pump is completely cancelled, and the power consumption is reduced. The acid bath used for spinning and drawing has been filtered by the filter system to remove impurities, so that the product quality is not affected by the impurities in the acid bath.

This utility model discloses a system for preparing lyocell fiber spinning dope by modifying wood pulp, including an enzymatic purification kettle, a first washing kettle, a bleaching and impurity removal kettle, a second washing kettle, a pulverizer, a pulper, and a thin-film evaporator. The enzymatic purification kettle is connected to a first connecting pipe, which is equipped with a first delivery pump and a first press. The first press is connected to the first washing kettle, which is connected to a second connecting pipe. The second connecting pipe is equipped with a second delivery pump and a second press, which is connected to the bleaching and impurity removal kettle. The bleaching and impurity removal kettle is connected to a third connecting pipe, which is equipped with a third delivery pump and a third press. The third press is connected to the second washing kettle, which is connected to a fourth connecting pipe. The fourth connecting pipe is equipped with a fourth delivery pump and a fourth press. The fourth press, pulverizer, and pulper are connected in sequence. The pulper is connected to a fifth connecting pipe, which is connected to the thin-film evaporator via a screw delivery pump.

A yarn bring-down apparatus includes a yarn holding portion, a rail (51), a sliding portion (52), and a cover (53). The cover (53) covers at least a part of a side surface portion of the rail (51). The cover (53) has a slit (84) and an open / close mechanism (85). The slit (84) extends in up-down direction. The open / close mechanism (85) opens or closes the slit (84) so that an open portion (86) and a closed portion (87) are formed in the cover (53). The sliding portion (52) is at least partially exposed to the outside of the cover (53) through the open portion (86) of the cover (53). As the sliding portion (52) slides, the sliding portion (52) acts on the open / close mechanism (85) so that an upper boundary moves together with the sliding portion (52), the upper boundary referring to a boundary between the open portion (86) through which the sliding portion (52) is exposed and the closed portion (87) located above the open portion (86).

This utility model belongs to the technical field of geotextile spinning machines, specifically a geotextile spinning machine, which includes a spinning machine body, a filter box, a filter screen, a clamping plate, and an insert plate. The filter box is fixedly connected to the bottom inner wall of the spinning machine body, and the filter screen is movably connected to the inner wall of the filter box, with the top of the filter screen extending to the outside of the filter box. The filter box and the filter screen are compatible. There are two clamping plates, which are symmetrically fixedly connected to the outer wall of the filter screen. Each clamping plate has a slot on its opposite side, and the clamping plates are compatible with the filter box. There are also two insert plates, which engage with corresponding slots. A fixing mechanism is connected to the insert plates. This utility model uses a simple structure to fix or unlock the filter screen, making it convenient to install the filter screen according to usage requirements. This ensures that the filter screen remains stable during use and has good practicality.

This invention discloses an artificial turf fiber production device and method, specifically relating to the field of fiber production technology. The invention includes an operating table, characterized in that: an extension block is fixedly connected to one side of the top of the operating table; pipes are symmetrically fixedly connected to one side of the extension block; a feed hopper is fixedly connected to one side of the outer surface of the pipes; several heating sleeves are provided on the outer surface of the pipes; an extension tube is fixedly connected to one end of the pipes; and an extrusion chamber is fixedly connected to the outer surface of the extension tube. This invention, by setting auxiliary plates and rectangular plates, allows the fiber filaments to pass through the gaps between the partitions. During the continuous pulling process, the fiber filaments always pass through the inner walls between the auxiliary plates. Limiting plates can isolate the fiber filaments. Simultaneously, when the auxiliary plates and rectangular plates reciprocate vertically, they comb the fiber filaments, which helps prevent the fiber filaments from sticking together before complete cooling, thus improving the quality of the finished fiber filament product.

The application provides a functional polylactic acid fiber production device and a process thereof, relates to the field of synthetic fiber spinning, and comprises a bamboo micro-nano treatment unit, a bamboo carbon nanofiber preparation unit, a functional composite master batch preparation unit, a one-step melt spinning forming unit and an online stretching setting and winding unit. The one-step melt spinning forming unit comprises a single-screw extruder, a static mixing and filtering device and a heat preservation spinning box which are sequentially connected through heat preservation pipelines along the melt flow direction. The heat preservation spinning box is internally provided with a high-precision gear metering pump and a spinning assembly. The single-screw extruder comprises a double feeding groove, a feeding limiting piece, a screw body and a double-groove feeding mechanism. The feeding limiting piece is fixedly connected above the rear end of the single-screw extruder. The screw body is rotatably connected in the single-screw extruder. The problems of the feeding channel blockage of a single raw material, the shutdown of a feeding unit or the abnormal fluctuation of a feeding amount are solved.

The utility model relates to mixing device technical field, and disclose a kind of premixing device for polyamide staple fibre spinning, including, horizontal mixing box, the horizontal mixing box is used to hold material, one side of the horizontal mixing box is equipped with discharge hole;Mixing mechanism, the mixing mechanism is located inside horizontal mixing box;Vibrating discharge mechanism, the vibrating discharge mechanism is equipped in one side of horizontal mixing box and is communicated with discharge hole.The utility model is provided with vibrating discharge mechanism, so that vibrating motor rotates and generates vibration, while discharge hopper and horizontal mixing box resonate, and through the setting of turnover type support mechanism, when discharging, the horizontal mixing box is inclined, and the horizontal mixing box and turnover cylinder are supported by support spring, so as to further expand the amplitude of horizontal mixing box, and further improve the discharge effect.

A retrofitted elastane production facility is provided comprising a cellulose ester mixing zone, cellulose ester fiber spinning zone, and cellulose ester fiber spinning cabinet zone; wherein an elastane production facility comprises an elastane polymerizing zone, an elastane mixing zone, elastane spinning zone, an elastane spinning cabinet zone, an elastane twisting zone, and an elastane winding zone; optionally, wherein at least one of the elastane polymerizing zone, elastane false twist entangling zone, or elastane winding zone is not utilized in the retrofitted elastane facility; wherein the retrofitted elastane production facility produces cellulose ester fibers.

The utility model discloses an oiling improved device for filament production relates to the spinning field, including spinning silk path mechanism, be used to the oiling of filament oiling agent pump still includes: sensor, it includes response surface, pilot lamp is used for detecting the working condition of oiling agent pump, cut off mechanism, the filament that spins silk path mechanism discharged breaks through cut off mechanism and enters next working procedure, sensor and cut off mechanism electric connection, and sensor according to the working condition of oiling agent pump makes cut off mechanism to the fiber filament cutting processing. The utility model discloses the response surface setting of sensor detects whether the normal operation of oiling agent pump works, when the response surface setting of sensor detects the failure of oiling agent pump, the filament that passes through is cut off by cut off mechanism, avoids causing a large number of abnormal products and is scrapped, realizes the automatic monitoring work, not only has reduced the artificial cost, and has improved the timeliness of monitoring, guarantees the quality of product and quality, thereby improves the benefit.

The utility model relates to the technical field of chinlon production, in particular to a monomer suction device for a chinlon production line, which comprises a processing box, the left side of the processing box is communicated with a conveying pipe, the left side of the conveying pipe is communicated with a first processing box, and the left side of the first processing box is communicated with a second processing box. A discharging pipe is arranged on the left side of the second treatment box in a communicating mode, an activated carbon adsorption mechanism is arranged in the second treatment box and comprises an electric push rod, the electric push rod is fixedly connected to the inner wall of the second treatment box, and activated carbon particles are placed in the second treatment box and used for adsorbing harmful gas. Meanwhile, the turning plate is designed for turning the activated carbon particles, so that the activated carbon is prevented from caking due to long-time adsorption, the activated carbon always keeps good adsorption performance, the adsorption efficiency is further improved, monomer residues are reduced, the environmental pollution risk is reduced, and the purification effect on harmful gas is improved.

The present application relates to the general cleaning and dirt prevention technical field, especially relates to a kind of dry spray wet spinning coagulation bath filament impurity isolation cleaning device and method.The device includes coagulation bath tank, spinneret assembly, coagulation bath godet and vertically extractable partition, the partition separates the inside space of coagulation bath tank into the coagulation bath spinneret godet area in middle part and glove placement area located at its both sides;Glove placement area is provided with glove operating hole with sealed glove.The liquid level of each area coagulation bath is adjusted to consistent height before cleaning, and the partition is extracted under the condition that liquid level has no pressure difference, so that each area is connected, and the operator can clean the filament impurity on coagulation bath godet in line without disturbing the main process liquid level.The present application realizes the local isolation of coagulation bath hair in dry spray wet spinning process, zero liquid level disturbance cleaning, avoids spinneret plate paste plate risk, and guarantees the continuous and stable operation of spinning.

The application provides a polyester filament spinning equipment and a one-step three-component production process thereof, and belongs to the technical field of polyester filament spinning. The application cooperates a steady pressure box body and a guide fan to complete steady pressure rectification of cooling air, lays a foundation for subsequent airflow homogenization, and drives a damper to rotate through a micro motor driving shaft, so that the air volume can be accurately controlled, and the airflow is converted into uniform laminar flow through the design of the honeycomb-shaped air outlet of the honeycomb-shaped guide plate, which effectively avoids the problem of poor filament bundle forming caused by uneven traditional cooling airflow. More importantly, the grounding fixed needle body and the cooling airflow function are in situ linkage, without additional static neutralization equipment, and the needle tip corona discharge is excited by the static electricity of the filament bundle itself, so that the cooling laminar flow carries ions when passing through the needle body area, forming ion-carrying cooling airflow.

This invention belongs to the field of cellulose acetate tow preparation technology, and discloses a method and system for preparing multifunctional cellulose diacetate tow. The method includes steps such as dissolving cellulose diacetate, mixing functional additives, and spinning. By controlling the opening and closing of control valves on the first and second conveying pipelines, the method selectively guides the filtered cellulose diacetate solution to a first spinning device for conventional spinning, and / or to a mixing device for mixing with functional additives, and then to a second spinning device for functional spinning. This preparation method and system not only meet the requirements of multi-path production of multifunctional cellulose diacetate tow, enabling the addition of different types and proportions of functional substances, but also accommodates conventional product production lines without affecting existing production lines and processes. The production line has the advantages of flexible production with elastic switching and rapid recovery.

The invention relates to a melt spinning device (1) for producing melt-spun filaments (F), in particular filaments made of polyamide which releases monomeric and / or oligomeric compounds during extrusion, comprising a spinning bar (2) for extrusion and a cooling device for cooling the synthetic filaments (F), wherein an extrusion area (5) is formed between the cooling device (4) and the spinning bar, through which the filaments (F) are fed to the cooling device (4), wherein a guide ring (40) for feeding the filaments into the cooling device (4) and trapping monomeric and / or oligomeric compounds that can form deposits is positioned at an inlet opening (43) of the cooling device (4), wherein the guide ring (40) has a removal device (8) for removing the deposits, wherein the removal device (8) acts on a predetermined side surface (45) of the guide ring.and an associated method for producing melt-spun filaments (F), in particular filaments made of polyamide, which releases monomeric and / or oligomeric compounds during extrusion that can form a deposit on internal components of a melt spinning device.

This invention relates to a method and corresponding apparatus for initiating melt spinning, stretching, and winding processes, wherein yarn (2) extruded from a spinneret nozzle (3) is applied to a first oiling device (4.1), a stretching device (5), a second oiling device (4.2), and a winding machine (6), wherein, either during application, oil is supplied without the aid of the first oiling device (4.1) and / or the second oiling device (4.2), and / or during application, oil is supplied with the aid of the first oiling device (4.1) and / or the second oiling device (4.2) at a predetermined initial flow rate (Q). tA The oil is supplied with an initial flow rate (Q). tA ) greater than the production flow rate (Q) tP ), of which production flow rate (Q) tP This prepares for subsequent yarn (2) production, wherein, after application, the initial flow rate (Q) of the oil in each oiling device (4.1, 4.2) is [not specified]. tA ) is set as the production flow rate (Q) tP ).

To effectively reduce axial variation of temperature at a cylindrical portion of a roller body in an induction heating roller.SOLUTION: An induction heating roller 20 comprises a rotatable roller unit 30 and a coil 52. The roller unit 30 comprises: a roller body 31 which includes an outer cylinder portion 34 (cylindrical portion) extending in an axial direction of the roller unit 30 and in which the outer cylinder portion 34 is induction-heated when current flows in the coil 52; a soaking member 32 which can axially move heat generated in the outer cylinder portion 34 and which axially heat more easily than the outer cylindrical portion 34; and a heat generating member 60 which is disposed at a position of an axial end of the outer cylinder portion 34 and is induction-heated when current flows in the coil 52. The heat generating member 60 is composed of a material having an electric resistivity lower than that of a material constituting the outer cylinder portion 34 and that of a material constituting the soaking member 32. The heat generating member 60 is disposed adjacently to at least one of the outer cylinder portion 34 and the soaking member 32.SELECTED DRAWING: Figure 2

A process for preparing a modified non-woven fabric produced by recycling PP food container crushed pieces, belonging to the technical field of non-woven fabrics. The process comprises the following steps: first, sorting, cleaning and screening recycled PP food container crushed pieces, and then mixing same with a modification enhancer for later use; next, using a screw feeder to convey the prepared raw materials to a screw extruder for melt extrusion; then extruding a melt by means of a spinneret, performing spinning forming, cooling and solidifying a fiber by means of a cooling device, and forming a continuous fiber mesh after laying; and finally reinforcing the fiber mesh by means of drawing and thermal bonding, forming a non-woven fabric having required physical properties after laying, and performing heat treatment and calendering treatment. Said preparation process effectively uses waste PP food containers, reduces the use of virgin PP, and reduces production costs, while also reducing environmental pollution, and having significant economic and social benefits.

This utility model discloses a pressure control device for an ethylene glycol evaporator in the field of polyester spinning. The device includes an evaporator with a heat medium inlet and outlet, and an ethylene glycol inlet and outlet. The heat medium inlet is connected to an inlet pipe, and two parallel pump-in pipes are connected to the end of the inlet pipe. Both pump-in pipes are connected to a second heat medium supply pipe, and each pump-in pipe is equipped with a heat medium pump. The outlet pipe is connected to a first and second heat medium recovery pipe in parallel. A side-connecting pipe is provided between the second heat medium recovery pipe and the second heat medium supply pipe. A temperature regulating valve is installed on the inlet pipe, and the first heat medium supply pipe is connected to the side of the pipe wall in front of the temperature regulating valve. This utility model fully utilizes the kinetic steam generated by the evaporator to maintain stable operation and repeatedly recycle it, saving heat energy wasted due to large fluctuations.