380 results about "Carding" patented technology

The invention relates to the technical field of wind tunnel experiments and textile carding, and discloses a guide plate system for a card clothing test wind tunnel and a test method thereof, the system comprises a mounting clamp, a guide plate, a driving mechanism and a tail airflow measurement and analysis system; the guide plate is located in the wind tunnel, forms a sealing structure with the inner wall surface of the test section of the wind tunnel, and is continuously controlled to move along the direction vertical to the test airflow through the driving mechanism; the length of the wind tunnel is 200-1000 mm, the height of the wind tunnel is 10-150 mm, and the width of the wind tunnel The guide plate is provided with static pressure measuring points which are continuously arranged; card clothing is arranged below the flow guide plate and is arranged on the mounting clamp; the mounting fixture is arranged on the bottom surface in the wind tunnel; an airflow measurement and analysis system is arranged behind the flow guide plate and installed on the inner bottom face of the wind tunnel. The actual carding process in the textile industry is simulated, the optimal numerical values of the gauge, the needle shape, the carding airflow and other characteristics in the experiment are determined, and the test precision of the wind tunnel is improved.

The invention discloses a fiber web transfer process based on middle doffer layered transfer. A transfer path comprises a first transfer path and a second transfer path. On one hand, on the basis of the multiple transfer paths, the return load of the breast cylinder is reduced, stretching, condensation and attachment of fibers are formed in the transfer paths, meanwhile, the probability of fiber stacking, winding and blocking is reduced in layered transfer, the probability of neps and white spots is reduced, and then the uniformity, strength and productivity of fiber carding transfer are improved; on the other hand, airflow interference in condensation is avoided based on top and bottom separation of the one-way transfer section, meanwhile, the probability of insufficient or incomplete fiber transfer is reduced, in addition, based on cooperation of the net outlet speed and time of all the transfer paths, winding ends of all the transfer paths are kept aligned, and the fibers are transferred to a large cylinder from inside to outside in a layer-by-layer thickened mode; therefore, the non-uniform thickness of the fiber web is eliminated, the density and strength of the fiber web are improved, and the device is suitable for transferring and carding various fibers.

The invention relates to the field of composite materials, in particular to a preparation method of a basalt fiber hybrid woven impact-resistant high-bearing composite material. The basalt main fibers and the auxiliary reinforcing fibers are pre-mixed, carded and woven in a three-dimensional mode, in a constructed prefabricated body framework, the auxiliary reinforcing fibers cooperate with the basalt main fibers, the bearing stress is dispersed, the stretching and shearing effects under the impact load are resisted, the fracture resistance and deformation resistance of a prefabricated part are improved, the structural stability is enhanced, and the service life of the prefabricated part is prolonged. After impregnation and hot press molding, the advantages of the basalt fiber hybrid braided structure can be fully played, and the composite material is endowed with excellent impact resistance and high bearing performance.

The invention discloses a high-precision interlock fabric fiber quality detector, and relates to the technical field of fiber detection, the high-precision interlock fabric fiber quality detector comprises a detector, the detector is provided with a first detection chamber and a second detection chamber, the first detection chamber is internally provided with a carding assembly, and the second detection chamber is internally provided with a stretching mechanism; the detector is provided with a sample table, the sample table is provided with a manual clamp, the front end of the sample table is movably connected with a stretchable stretching table, and the top of the detector is provided with a controller; the carding assembly comprises a carding mechanism, the carding mechanism comprises a cleaning mechanism, and a visual detection camera is installed in the first detection chamber; according to the device, interlock fabric fiber samples can be fixed on the sample table, automatic carding and tensile strength detection can be carried out on the multiple groups of fiber samples, the functions of carding, length detection, tensile strength detection and the like of fibers are integrated, the equipment cost is reduced, and the detection efficiency is improved.

The invention belongs to the technical field of textile fabrics, and particularly relates to a processing method of a high-whiteness cotton and wool blended fabric. The fabric is a cotton and wool blended product, and the wool content is 10-30%; the processing method comprises the following working procedures: (1) raw cotton is treated through the following procedures of blowing, cotton carding, pre-drawing, sliver lap forming, sliver combing and snapping, and cotton fibers are obtained; the method comprises the following steps: performing pretreatment bleaching on cotton fibers in a dyeing machine, and then sequentially washing, spin-drying and drying to obtain bleached cotton fibers; (2) baling the bleached cotton fibers, mixing the baled bleached cotton fibers with mercerized wool fibers, and then carrying out the following treatment processes of cotton carding, primary drawing, secondary drawing, roving, spinning and spooling to obtain bleached cotton wool yarns; (3) bleaching and dyeing the bleached cotton and wool yarns to obtain bleached yarns; and (4) weaving the bleached yarns to obtain a gray fabric, and carrying out after-treatment on the gray fabric to obtain the high-whiteness cotton and wool blended fabric. According to the invention, high whiteness value and low wool damage of the cotton and wool blended product are realized.

The utility model relates to the technical field of yarn spinning, in particular to a spinning yarn tidying device with a side-by-side multi-tooth carding structure, fixed teeth are fixedly connected to the outer side of a carding roller, and an adjusting supporting plate is slidably connected to the position, close to the center, of the interior of the carding roller. The outer side face of the adjusting supporting plate is fixedly connected with first adjusting teeth, the outer side of the adjusting supporting plate is provided with a driven plate, and the outer side face of the driven plate is fixedly connected with second adjusting teeth. A transmission rod can support or pull an adjusting supporting plate, then the adjusting supporting plate can drive a limiting sliding rod and a driven plate to move towards the outer side, after the driven plate makes contact with the inner wall of the carding roller, continuous jacking can cause compression of a spring, and first adjusting teeth and second adjusting teeth penetrate out of penetrating holes; therefore, the carding distance can be adjusted side by side.

The invention relates to the technical field of industrial filter materials, in particular to a spunlace filter material for a filter cartridge and a preparation method of the spunlace filter material for the filter cartridge, and the preparation method comprises the following steps: S1, respectively opening and mixing modified polytetrafluoroethylene fibers and polyester fibers to obtain mixed fibers, and carding, lapping, combining and pre-needling the mixed fibers to obtain a pre-needled felt; s2, the pre-needled felt is subjected to spunlace reinforcement and drying shaping, and a filter material plain felt is obtained; s3, singeing the surface of the filter material plain felt, soaking the filter material plain felt in the finishing liquid, mangling the soaked filter material plain felt, and drying to obtain the spunlace filter material for the filter cartridge. The flame retardant property, corrosion resistance and filtering efficiency of the spunlaced filter material for the filter cartridge are comprehensively improved through chemical crosslinking of epoxy groups introduced to the surfaces of the modified polytetrafluoroethylene fibers and amino groups on the surfaces of the modified silicon dioxide and a finishing liquid impregnation technology.

The utility model relates to the technical field of spinning, in particular to a cotton thread spinning thread layer carding device, the end portion of a cutter is located in an avoiding groove in the process of cutting off a cotton roll, the cutter cannot make contact with a wind-up roller when the cotton roll is cut off, abrasion of the wind-up roller to the cutter is reduced, the service life of the cutter is guaranteed, and the cotton thread spinning thread layer carding device is convenient to use. The reliability and the practicability are high; comprising a bottom plate, a supporting frame, a carding machine body, a feeding hopper, a winding roller and a cutter, the carding machine body is fixedly installed at the upper end of the bottom plate through the supporting frame, the feeding hopper is arranged on the left portion of the carding machine body, a discharging opening is formed in the right portion of the carding machine body, the winding roller is located on the right side of the discharging opening, and the cutter is located above the winding roller; the cutting device further comprises a driving mechanism and a moving mechanism, the cutter is installed on the moving mechanism, the moving mechanism is used for moving the cutter, the winding roller is installed on the driving mechanism, the driving mechanism is used for driving the winding roller to rotate, and an avoiding groove communicating front and back is formed in the winding roller.

The invention discloses a super-soft yarn, a preparation method thereof and a fabric, and belongs to the technical field of spinning. Semi-worsted raw materials are made into roving through opening picking, cotton carding, drawing and roving procedures; at least one rough yarn is twisted and spun on a spinning frame provided with a super-soft device, single yarn is obtained, and the rough yarn feeding mode comprises the steps that straight yarn is prepared through independent feeding, or covering yarn is prepared through simultaneous feeding of two rough yarns and one PBT filament; and then doubling the single yarns, and performing two-for-one twisting in a twisting direction opposite to the twisting direction of the single yarns to obtain the super-soft yarns. The multi-component raw materials are combined with the super-soft process, stable spinning of the yarn under extremely low twist is achieved, the PBT filament core yarn and the reverse two-for-one twisting process are combined, the industrial technical bottleneck that traditional low-twist super-soft yarn is narrow in raw material adaptability and cannot have softness, strength and elasticity at the same time is solved, and the prepared super-soft yarn is soft outside and elastic inside, low in twist, high in strength, fluffy, high in elasticity and good in elasticity. The finished knitted sweater has soft and fluffy hand feeling and good structural stability.

The present invention provides an integrated carding and drying papermaking machine capable of internal circulation, which relates to the technical field of papermaking machines. The supporting seat is a frame structure, and an electromagnetic block is fixedly connected to the top of the supporting seat. There are two electromagnetic blocks in total, which solves the problem that when drying pulp, gas is mostly extracted from the outside and heated before being blown to the pulp to dry it. However, due to the frequent extraction of air from the outside, it is difficult to effectively filter impurities in the air, and heating also causes waste of resources, which has limitations. By starting the dryer, a return pipe is used to quickly extract part of the gas blown out by the dryer and the gas remaining in the base, and the filter element arranged in the return pipe is used to filter the residual moisture in the recovered gas and then re-supply it into the interior of the dryer and blown into the interior of the base. The liquid filtered by the filter element can also be quickly discharged through the drain pipe for release.

The utility model relates to the technical field of intelligent noise source preparation, and aims to solve the technical problems that two shells are inconvenient to disassemble and the cost is high. In order to solve the technical problem, the utility model provides the intelligent noise source. According to the utility model, two housings are in butt joint up and down through a plurality of clamping members; the multiple clamping pieces are arranged at intervals in the axial direction of the shell. The clamping piece comprises a clamping protrusion and a clamping groove which are arranged on the two sides of the shell respectively. The top of the clamping groove extends inwards to form a clamping hook, a first diagonal plane is arranged on the clamping hook, and a second diagonal plane is arranged on the clamping protrusion. The clamping protrusions are inserted into the clamping grooves, and the first diagonal planes are matched with the second diagonal planes. The internal components are arranged in the two shells; the internal assembly comprises a main body, a USB end fixing block and a connector fixing block, and the USB end fixing block and the connector fixing block are connected to the two ends of the main body respectively; the shielding cover is arranged between the shell and the main body. Production cost is saved, connection is stable and reliable, and disassembly is easy.

The invention relates to the field of tencel gauze, in particular to soft tencel gauze and a preparation method thereof.The preparation method comprises the following steps that S1, tencel fibers are opened and subjected to primary carding and lapping, and a tencel fiber net is obtained; s2, the tencel fiber net is carded for the second time, a rolled gauze element is added, the tencel fiber net evenly falls on the two sides of the gauze element, initial gauze is obtained, spunlace treatment is conducted on the initial gauze, and tencel gauze is obtained; and S3, soaking the tencel gauze in a softening agent for 20-30 minutes, washing with water, drying, and doffing to obtain the soft tencel gauze. The tencel gauze is soaked in the softening agent, so that molecules of the softening agent permeate into the fibers, the friction coefficient between the fibers is reduced, the softness of the tencel gauze is remarkably improved, and the prepared soft tencel gauze can be tightly attached to the facial contour when being applied to facial mask cloth, so that the facial mask cloth is not prone to falling off. And the multi-layer gauze structure can adsorb more essence.

The invention belongs to the technical field of textile production, and particularly relates to a production method of a high-grade combed cotton and linen woven fabric. The production method comprises the steps that cotton assorting, cotton carding, pre-drawing, sliver lap forming, combing, drawing (two passes), roving, spinning and spooling are conducted on spinning, the high-grade combed cotton and linen woven fabric is obtained through slashing, weaving and finishing, the obtained fabric has softness of cotton, stiffness and smoothness of linen and high-grade gloss, and the defect problem of a cloth cover is solved.

The invention discloses a graded carding device and method for wool-polyester blended fabric, and the device comprises a rack, a first carding unit, a second carding unit, and a third carding unit. The first carding unit is arranged at the top of the rack; the first carding unit is used for primarily carding the wool-polyester blended fabric; the first carding unit comprises a first top support, a first limiting part and a first abutting part. The first top bracket is arranged above the top of the rack; the first limiting part is rotationally arranged on the first top bracket; the first abutting part is rotationally arranged on the first top support and used for carding the wool-polyester blended fabric, a plurality of protruding parts which are transversely distributed in a circumferential array at intervals are arranged on the outer side of the first abutting part, and preliminary carding spaces are formed among the multiple protruding parts at intervals; the device solves the problems of non-uniform mixing and non-uniform thickness of wool and polyester raw materials caused by manual feeding, and achieves the effects of primary uniform mixing and smooth thickness of the wool and polyester raw materials.

The utility model discloses a wool yarn combing and impurity removing mechanism which comprises an impurity removing box, a working cavity is formed in the impurity removing box, a sliding groove is formed in the inner wall of the bottom of the working cavity, a sliding block is connected into the sliding groove in a sliding mode, an object placing plate is fixedly connected to the upper surface of the sliding block, a bolt is fixedly connected to the upper surface of the object placing plate, and the bolt is fixedly connected to the lower surface of the object placing plate. A clamping carding device is movably connected to the side surface of the bolt, a motor is fixedly connected to the side surface of the impurity removal box, a threaded rod is fixedly connected to the output end of the motor, a sleeve is in threaded connection to the side surface of the threaded rod, and a limiting block is fixedly connected to the side surface of the sleeve. By means of the clamping and combing device, wool yarn at the clamping portion can be combed, impurities of the wool yarn at the clamping portion can be combed and pushed out to be collected in a centralized mode, the overall working efficiency is improved, and the trouble of follow-up manual cleaning is reduced.

The invention relates to the technical field of personal hygiene care products, and discloses a hygiene care pad containing a polylactic acid fiber non-woven fabric surface layer and a manufacturing method of the hygiene care pad. The surface layer is made of a 100% polylactic acid fiber non-woven fabric, is derived from a polylactic acid homopolymer or copolymer, is subjected to processes of opening, carding and the like, is consolidated by spunlace, hot air or needling, has the gram weight of 10-85 g / m, and has the characteristics of bacteriostasis and compostable degradation; the sanitary nursing pad is composed of the surface layer, the liquid absorption layer of the specific structure and the degradable bottom layer impermeable film, the problems that an existing nursing pad is poor in skin-friendly performance and flow guiding performance, pollutes the environment, is serious in back seepage and the like can be effectively solved, and the sanitary nursing pad has great application value in the field of personal sanitary nursing products.

The utility model discloses a carding device for polyester thread production. The carding device comprises an adjustable carding device, according to the utility model, the adjustable carding device is arranged, the sliding seat can be moved to adjust the position of the lead frame on the rack by pulling the pull button outwards and releasing the braking of the sliding seat, and the pull button is loosened after the sliding seat is moved in place, so that the sliding rod is pushed inwards under the elastic acting force of the spring, and the brake block is propped against the guide rail for friction locking; and when different numbers of sliding seats need to be arranged, the movable end cover is firstly pressed and pushed to trigger the rebounding device to pop out, so that the distance between the movable end cover and the rack is increased, the sliding seats can be assembled and disassembled from the left end of the guide rail, a user can assemble and adjust according to the number of yarns, and the application range is wider.

The invention discloses a physical modification spinning process based on tussah short fibers, relates to the technical field of textiles, and solves the technical problems that fibers are damaged and high-hardness fibers cannot be treated in an existing technical scheme. The physical modification spinning process comprises the following steps that 1, the tussah short fibers are subjected to humidifying treatment, and the water content of the fibers is stabilized; 2, electrostatic carding is conducted on tussah short fibers through a multi-stage heterogeneous card clothing carding mechanism, the pretreated fibers are carded through the charge effect, and the fibers are directionally arranged; by means of the synergistic effect of eliminating internal stress through humidifying and softening and airflow drafting, the hardness of the final fabric is reduced, and the flexibility index is increased. The tussah silk fabric is soft in hand feeling and skin-friendly, wearing comfort is greatly improved, and the defect that a traditional tussah silk fabric is stiff in hand feeling is overcome. Innovative non-contact airflow drafting effectively releases the internal stress of the fibers, and the problem of fabric shrinkage is fundamentally solved.

The application relates to a production and processing method of a carded cotton-wool blended yarn, which comprises the following steps: A, selecting cotton fibers with a micronaire value of 4.8 and a length of 29 mm, and selecting washed and cleaned wool tops with a count of 80; B, respectively dyeing the cotton fibers and the wool tops; C, feeding the colored cotton fibers into a carding machine to be carded, and then feeding the slivers carded by the carding machine into a wool carding machine to be carded; D, opening the colored cotton slivers by an opener to form cotton loose fibers; E, mixing the cotton loose fibers with the colored wool loose fibers, and stewing the wool for 12 hours; F, feeding the mixed wool and cotton into a two-union wool carding machine to be carded, feeding the wool and cotton into a three-union wool carding machine to be carded after the carding of the two-union wool carding machine is completed, and making wool lap roving; G, performing spinning on the wool lap roving by a mule machine to obtain a carded cotton-wool blended yarn, so that the produced cotton-wool blended yarn is low in twist, large in elasticity, good in hand feeling and good in fluffiness.

The utility model discloses a laminating, galling, carding and separating all-in-one machine which comprises two supporting side plates, pulleys are movably installed on the supporting side plates through rotating shafts in an embedded mode, a transverse plate is integrally connected between one ends of the supporting side plates, and a steel bar carding assembly is installed at the bottom of the transverse plate. A partition discharging assembly is arranged between the supporting side plates and located on one side of the reinforcing steel bar carding assembly, a galling treatment assembly is installed on the side, away from the reinforcing steel bar carding assembly, of the partition discharging assembly, and a fixed side plate and a detachable side plate are installed at the other ends of the supporting side plates. The laminating machine has the advantages that the laminating machine is simple in structure, laminating, galling, carding and partition procedures of laminated slabs are achieved through the integrated design, the occupied space of needed equipment is greatly reduced, switching of the equipment is not needed, and construction efficiency is improved.

The utility model provides an integral self-tensioning prestressed laminated slab long-line bench production line. The integral self-tensioning prestressed laminated slab long-line bench production line comprises a maintenance device, a long-line bench formwork, a track, a numerical control hydraulic tensioning machine, a fixed cross beam, a tensioning cross beam, a fixed guide rail, a pressed longitudinal beam, a fixed pedestal, a film coating, galling, carding and separating all-in-one machine and a concrete automatic distributing machine based on visual inspection. The concrete curing device has the advantages that the designed curing device comprises the automatic opening and closing curing shed cover installed above the fixed mold table and the steam curing pipeline installed below the fixed mold table, the curing device is easy to operate, low in manufacturing cost and good in sealing effect, the concrete curing temperature and humidity can be effectively improved, the curing period is shortened, and the maintenance efficiency is improved. The production line is high in automation and standardization degree, the prestressed laminated slabs can be produced on a large scale within a short time, the labor intensity of workers is greatly reduced, the production efficiency is improved, standard management of equipment is facilitated, and the safety is improved.

The invention relates to the technical field of composite non-woven fabrics, and particularly discloses a preparation device of a high-filling-power polyester composite non-woven fabric. The device is characterized by further comprising a working roller, the working roller is arranged in the working table, and the working roller decomposes non-woven fabric polyester fiber bundles into single fibers through high-speed rotation; a carding roller; after the working roller splits and flattens single fibers, the rotating carding roller continuously cards the single fibers, impurities and short fibers can be removed in the process, meanwhile, a worker can start the working motor to drive the movable wheel to rotate, the multiple adjusting plates and the carding roller move at the same time, the closer the carding roller is to the working roller, the more sufficient the carding is, and the carding efficiency is improved. The straightening degree, the separation degree, the parallelism degree and the singularization degree of fibers are remarkably improved, the carding rollers are far away from the working rollers, fiber damage is conveniently reduced, the device is suitable for short fibers and crude fibers so as to improve the carding effect, and it can be conveniently guaranteed that the multiple carding rollers can adjust the carding strength and improve the carding effect according to the non-woven fabric cotton material requirements.

The utility model provides a dry breathable perforated non-woven fabric which comprises a base fabric, a breathable area arranged on the base fabric and a liquid infiltration area arranged on the base fabric and located on the periphery of the breathable area, the infiltration area and the breathable area are of an island structure, the height of the breathable area is smaller than that of the base fabric, and the liquid infiltration area is located on the periphery of the breathable area. The breathable area accounts for 55-70% of the surface area of the base cloth; the breathable area comprises a boundary line connected with the liquid infiltration area and a liquid guide face connected with the boundary line, the liquid guide face and the liquid infiltration area form an angle of 60-80 degrees, and a liquid guide channel is formed by the liquid guide face and the liquid infiltration area. A single carding process is adopted, 100% 2D weak-affinity fibers are laid, and the fabric is fine and fluffy; cationic oil is added into the fiber, so that the fiber has a long-acting antibacterial effect; a punching process is added on the basis of the original flat grain surface layer, so that the material is more breathable, the infiltration speed is increased, the back infiltration amount is reduced, the residual quantity of liquid on the surface of the non-woven fabric is reduced, the non-woven fabric has strong liquid absorption capacity, and the breathability and the dryness are improved due to dense holes; and the gram weight range of the non-woven fabric is 18-40g / m

The invention discloses a production technology of a jute environment-friendly coir mat with a three-dimensional structure, and relates to the technical field of jute coir mat production.The production technology comprises the following steps that S1, raw material pretreatment is conducted, specifically, raw jute is sequentially subjected to three-stage degumming including anionic surfactant solution soaking, pectinase treatment, lignin peroxidase treatment and caustic soda boiling-off, performing countercurrent cleaning and vacuum drying to obtain flexible fibers; s2, mixing fibrils: mixing the pretreated jute fibers with palm fibers and ramie fibers in proportion to form a mixed fiber raw material; s3, opening and carding: performing loosening treatment on the mixed fibers by a bidirectional opener, and preparing flocculent fibers by a carding machine; the flocculent fiber filaments are sprayed to a lapping machine through an exhaust fan, the lapping machine reciprocates at the constant speed of 1.5-2.5 m / s in the direction perpendicular to the spraying direction, the fiber flexibility can be improved, a three-dimensional supporting structure can be constructed, and a formaldehyde adding source can be eliminated.

The utility model discloses a combing machine release roller hybrid driving device, which belongs to the technical field of combing machines, and comprises a rack, the left end of the front side of the rack is fixedly connected with a console, the inner wall of the rack is fixedly connected with a release roller driving component, the surface of the rack is fixedly connected with a support plate, and the upper surface of the support plate is fixedly connected with a negative pressure box; the surface of the rack is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating shaft. A fixing block is fixedly connected to the lower surface of the supporting plate, the rotating shaft is rotationally arranged in the fixing block, a connecting plate is fixedly connected to the lower surface of the supporting plate, and meanwhile a connecting shaft is rotationally arranged in the connecting plate. According to the combined driving device for the detaching roller of the combing machine, through the arrangement of the negative pressure box and the suction head, residues of fiber fine lines on the surface of the device are effectively reduced, the detaching roller can operate according to the accurate speed and movement rule, and it is ensured that key combing and detaching actions of the combing machine are accurately executed.

The invention relates to a carding machine convenient to feed and used for regenerated cotton production, and relates to the technical field of carding equipment, the carding machine comprises a processing table, and a feeding assembly for primary treatment of materials and a carding assembly for secondary treatment of the materials are arranged at the two opposite ends of the upper side face of the processing table respectively; the feeding assembly comprises a feeding sleeve vertically installed on the upper side face of the processing table, a feeding port is formed in the upper side face of the feeding sleeve, and a discharging port is formed in the side face, facing the cotton carding assembly, of the lower portion of the feeding sleeve. A pretreatment roller is rotationally mounted in the feeding sleeve in the horizontal direction, a driving part for driving the pretreatment roller to rotate around the axis of the pretreatment roller is fixedly arranged outside the feeding sleeve, and cotton carding nails are fixedly arranged on the periphery of the pretreatment roller; a conveying belt for conveying materials treated by the feeding assembly to the cotton carding assembly and first power for driving the conveying belt to operate are mounted on the upper surface of the processing table; according to the cotton carding device, the materials can be preliminarily carded before entering the cotton carding assembly, and the working pressure of the subsequent cotton carding assembly is effectively relieved.

According to the technical scheme, the needle type pre-carding strip and the needle type pre-carding plate are characterized in that the needle type pre-carding strip and the needle type pre-carding plate comprise a connecting plate, a plurality of carding needles and a plurality of racks, the carding needles and the racks are installed on the connecting plate, and at least one part of the carding needles are used for conducting primary pre-carding on fibers and conducting secondary pre-carding in cooperation with the racks. Comprising a base assembly, the base assembly is provided with an installation groove used for installing connecting plates, clamping grooves used for embedding the side edges of the connecting plates are formed in the groove walls of the two sides of the installation groove, a detachable pressing plate is arranged at the position, corresponding to the position between the two connecting plates, of the installation groove, and the pressing plate downwards presses the connecting plates so as to be matched with the clamping grooves to fix the connecting plates in the installation groove. According to the pre-carding device, fine and uniform fiber carding can be ensured, meanwhile, fiber damage is reduced, formation of short fibers is reduced, abrasion of the racks is reduced, and the service life of pre-carding strips is prolonged.

The application relates to the technical field of carding, and discloses a spinning process combining semi-worsted spinning with Sirospun technology and a carding device, which comprises a carding bin, a cotton storage bin arranged on the carding bin, a cotton feeding roller, three licker-in rollers, a cylinder, a doffer and a cotton stripping roller which are sequentially and rotatably arranged in the carding bin, a cotton collecting device fixedly arranged in the carding bin, a sliver outlet arranged on the cotton collecting device, a motor fixedly arranged on the outer wall of the carding bin, and a suction cotton device fixedly arranged on the carding bin. When the raw material fibers are relatively loose, the movement range of the fixed cover plate is small, the movement range of the baffle and the blocking strip is also small, the sleeve rotation is less for winding the connecting rope, the distance between the movable cover plate and the cylinder is large, and the generation of the cover plate flower can be reduced. When the raw material fibers are relatively compact, the movement range of the fixed cover plate is large, the movement range of the baffle and the blocking strip is also large, the sleeve is more for winding the connecting rope, and the distance between the movable cover plate and the cylinder is small, so that the opening and the impurity removal effect are good.

The utility model discloses a flow guide device, including drainage well and the well lid of carding in drainage well top, the lower fixed mounting of drainage well inboard has the bearing ring, the top swing of bearing ring is connected with the flow guide filter component of being located below the well lid, the flow guide filter component includes the support ring board, the support ring board carding is in the top of bearing ring, and the inside of support ring board is provided with water inlet one and the water inlet two of being located water inlet one left and right two sides. This flow guide device, water flow falls on the guide filter board, and water passes through filter hole one and enters drainage well, and garbage is intercepted by the guide filter board, and moves to both sides with water flow, and finally falls into the collection frame, in the collection frame, garbage impurities are concentratedly handled, and the remaining water body then enters drainage well through filter hole two, and then prevents impurities from accumulating on the guide filter board, ensures that the water permeation is not hindered, and improves garbage filter capacity, prolongs cleaning cycle, and reduces cleaning workload.

The utility model discloses a tool frame for stacking balcony air-conditioning plates, which is applied to the field of tool frames, and can achieve the purpose of safe stacking in a way of stacking the balcony plates or the air-conditioning plates on plywood between upright posts, reduce the storage field, avoid toppling over, and improve the working efficiency of the balcony plates or the air-conditioning plates. A rotating head is rotated to enable a transmission shaft to drive a first bevel gear to rotate, the first bevel gear rotates to enable a second bevel gear to drive a screw rod to rotate, the screw rod rotates to drive a telescopic rod to move, the distance between longitudinal stand columns is changed, the width can be adjusted, and the applicability of the tool frame is improved; the pressing plate is moved to enable the pressing rod to drive the clamping head to move, the clamping head moves to enable the clamping head to be disengaged from the clamping hole, the plywood is taken down, a mounting rod on a new plywood is inserted into the base plate, and the pressing rod drives the clamping head to be clamped with the clamping hole under the action of the spring to fix the plywood, so that the plywood is convenient to replace; and the practicability is improved.