341results about "Knitting" patented technology

The invention discloses a laser broken line rapid identification method for a spinning process, relates to the field of spinning detection, and is used for solving the problem of high identification error rate in a multi-material blending and frequent line changing environment. A multi-channel optical behavior characteristic matrix is formed by constructing a broken line recognition mechanism based on material perception and light intensity behavior characteristic collaborative modeling, collecting light intensity response data of yarn channels, constructing a dynamic detection sequence and extracting characteristics such as shielding amplitude gradient and recovery time delay. A yarn material identifier is introduced, a spectral response template is matched, a broken yarn judgment threshold group is generated, whether shielding sudden change and delay recovery characteristics are met or not is judged in combination with a detection sequence, a broken yarn event is accurately recognized, and recognition parameters are corrected in real time according to the shielding edge change rate and fluctuation stability in light intensity changes before and after yarn breakage. The dynamic optimization of the broken line judgment condition is realized, and the recognition precision and the response speed are improved.

A system for in-line treatment of thread for use with a thread consuming device is provided. The system comprises at least one treatment unit being configured to dispense one or more coating substances onto the at least one thread when activated and a thread speed sensor being driven by the motion of the at least one thread. A method is further provided.

The invention is suitable for the technical field of broken yarn detection, and provides a broken yarn detection system based on three-dimensional measurement, the broken yarn detection system comprises a laser mechanism, a camera array, an encoder, a single-chip microcomputer and a host, the laser mechanism is used for emitting a linear laser to irradiate a running yarn group, a highlight bright spot is formed on each yarn of the yarn group, and the camera array is used for detecting the broken yarn. The camera array is used for collecting bright spot images of a silk yarn group, the encoder is installed on a main shaft motor of the textile equipment and used for generating continuous pulse signals along with rotation of the main shaft motor, and the single chip microcomputer is in communication connection with the encoder and generates trigger signals of the images collected by the camera. High-brightness bright spot features are formed on each silk thread through linear laser, the three-dimensional space position of the silk thread is reconstructed in combination with image information collected by a camera array, the running state of the multiple rows of silk threads sequentially arranged in the depth direction of the optical axis of the laser can be recognized, and the possibility of missing detection caused by mutual shielding of the silk threads in the front row and the rear row is reduced.

The utility model belongs to the technical field of knitting equipment, and particularly relates to a stable high-density needle type manufacturing knitting needle. Comprising a needle body and a loop transfer reed, and the needle body is provided with a needle body, a needle rod and a needle tail; a needle hook is arranged at one end of the needle rod, and a needle latch capable of being opened and closed is arranged on the needle rod on the rear side of the needle hook; the needle body is provided with a reed mounting groove for mounting a loop transfer reed; the requirement of a single knitting needle for the transverse space of a needle bed is reduced, a thinner needle type can be designed, the method can be used for high-density needle type manufacturing, and the loop transfer stability is greatly improved; according to the invention, the insertion space is not easy to compress, which is beneficial for improving the transfer stability of the compactness coil; the gap between the needle body and the needle groove is further reduced, and high-density needle type manufacturing is facilitated.

The invention discloses a weaving machine metal part with a low-friction coating and a manufacturing method of the weaving machine metal part, and belongs to the technical field of textile machinery. A body is subjected to heat treatment, magnetic flow grinding, alkaline degreasing, acid activation, ultrasonic cleaning and plasma activation, then a chromium electroplating transition layer or a chemical plating Ni-P transition layer is applied, suspension liquid spraying or powder spraying or dipping is used, sintering curing is cooperated, a PTFE self-lubricating layer is applied, and the self-lubricating composite material is obtained. And finally, the compact Ni / Cr-PTFE-based composite coating is formed on the metal part of the weaving machine. The PTFE self-lubricating layer provides an extremely low friction coefficient, and yarn abrasion and part temperature rise are remarkably reduced; and the Ni / Cr transition layer greatly enhances the bonding strength of the PTFE layer and the steel substrate, and effectively prevents stripping and micro-cracking of the coating in high-speed weaving, so that effective protection of high-performance fibers is synchronously realized, and the service life of parts is remarkably prolonged.

The invention relates to a yarn cleaner (10) for a workstation of a textile machine with a cutting device for removing defects from a yarn, and a cutting device for a yarn cleaner (10) that can be arranged at a workstation of a textile machine, comprising a housing body (14) comprising a housing base body (11), a housing cover (15) that at least partially covers the housing base body (11) and together with the housing base body (11) defines an interior housing space (16), a first housing opening (23), and a cutting device (1) with a cutting medium carrier (5) having a cutting blade (4), a cutting medium drive (6) arranged in the interior housing space (16) for adjusting the cutting medium carrier (5) between a cutting position far from the housing and a rest position close to the housing, and a connecting element (6) connecting the cutting medium drive (6) and the cutting medium carrier (5).The drive element (21) is adjustable and arranged in the first housing opening (23). To provide a yarn cleaner (10) with a cutting device and a cutting device that ensures reliable separation of the yarn when required, the housing body (14) has a bearing section (27) for adjustable reception of the cutting element carrier (5) and a second housing opening (24) adjacent to the bearing section (27) with an opening edge (26) extending perpendicular to the adjustment direction of the cutting element carrier (5) and abutting the cutting element carrier (5).

The invention relates to the technical field of embossment knitting, in particular to a sweater three-dimensional embossment knitting machine which comprises a knitting machine body, a fixing frame is fixedly connected to the front side of the knitting machine body, and a plurality of vertically-arranged fixing rods are fixedly connected to the top end of the fixing frame. Through the arrangement of a heating extrusion assembly, a pressing roller, a heating spiral pipe, a rotating joint, a first one-way valve, a main pipeline, a high-temperature circulator, a fixing frame, a driving device, a conveying belt, a heat conduction assembly, a heating coil pipe, a telescopic pipe and a second one-way valve, the high-temperature circulator is started when the device is used; the heated pressing roller and the heated conveying belt are used for heating and extruding the moving knitted product, so that internal stress generated in the knitting process of the knitted product is eliminated, wrinkles generated by knitting are flattened, the pressing roller and the conveying belt can be heated through the design, it is guaranteed that the knitted product is evenly heated, and the problem that the knitted product deforms in subsequent machining is solved.

The utility model discloses an oil return mechanism of an upper sinker, which relates to the field of knitting equipment and comprises an upper cutting disc component, a saddle ring, a large gear ring and a large disc, the lower end face of the upper cutting disc component is provided with a first annular oil stopping groove, and the upper end face of the saddle ring is provided with a first annular oil collecting groove; the first annular oil collecting groove is provided with at least one first oil leakage hole, and the large gear ring is provided with a second annular oil collecting groove. The second annular oil collecting groove is provided with at least one second oil leakage hole, and the large disc is provided with a third annular oil collecting groove. And a third oil leakage hole is formed in the third annular oil collecting groove. The oil guiding device is composed of a first annular oil stopping groove, a first annular oil collecting groove, a first oil leaking hole, a second annular oil collecting groove, a second oil leaking hole, a third annular oil collecting groove and a third oil leaking hole, lubricating oil of an upper sinker is guided and collected, and the lubricating oil is prevented from flowing randomly. The whole oil return mechanism is small in improvement on an original assembly structure, low in cost, reasonable in design and good in lubricating oil recovery effect.

Provided are a computer program, a flat knitting machine, and an information processing method for outputting information about the position and / or defect of a knitting member determined to be defective.　The computer program causes a computer to execute processing for acquiring an image of a knitting member of a flat knitting machine having a plurality of knitting members arranged in a row, determining the quality of the knitting member on the basis of the acquired image of the knitting member, and outputting information about the position and / or defect of the knitting member determined to be defective.

The utility model provides a spring needle magnetism isolating connecting device and a glove knitting machine, and belongs to the technical field of knitting machinery. The spring needle magnetism isolating connecting device comprises a spring needle body, a magnetism isolating piece and an attraction piece. One end of the magnetic isolation piece is fixedly connected to the spring needle body, the other end of the magnetic isolation piece is fixedly connected to the attraction piece, the attraction piece can be magnetically attracted to the magnetic bar of the needle selector, and therefore attraction of the spring needle body is completed, the magnetic isolation piece isolates magnetic force emitted by the magnetic bar of the needle selector from the spring needle, and the attraction piece is demagnetized when the spring needle body needs to be loosened. The residual magnetic force of the attraction piece is smaller than the first preset value, the attraction piece cannot affect the spring needle body, the spring needle body can be quickly loosened, the structure is simple, and operation is easy and convenient.

The utility model relates to the technical field of hosiery needle cylinder, disclose a kind of hosiery needle cylinder automatic cleaning device, including support seat and cylinder, needle slot is opened in the cylinder inside, the support seat bottom is fixedly connected with support frame, the support frame one side is fixedly connected with slide rail, the slide rail outer wall is slidably connected with sliding block, the support seat top is fixedly connected with electric push rod, the electric push rod output end is connected with the sliding block, the sliding block one side is provided with support rod, the support rod one end is provided with cleaning assembly, the sliding block one side is provided with fixed component, the cleaning assembly includes cleaning ring, in the utility model, sliding block is driven to do linear reciprocating motion along slide rail by electric push rod, drive cleaning ring and inside cleaning brush synchronous sliding in needle slot, these structures work cooperatively, realize the effect that cleaning brush and needle slot inner wall sustained rubbing contact, deep cleaning rubbish.

A system (10) for in-line treatment of one or more threads (20a-b) for use with a thread consuming device (15) is provided. The system comprises a treatment unit (100) having a plurality of nozzles (152a-f) being distributed in at least a first and a second dispensing zone (154a-b), the dispensing zones (154a-b) being separated in a direction being perpendicular to the longitudinal direction of the at least one thread (20a-b), said thread (20a-b) being in motion in use, each nozzle (152a-f) being configured to dispense one or more coating substances at least onto the at least one thread (20a-b) when activated, and a control unit (190) being configured to control activation of each dispensing zone (154a-b) of nozzles (152a-f) independently. A method is further provided.

The utility model relates to the technical field of dust removal, and discloses a needle cylinder spring dust remover which comprises a cleaning shell, the upper ends of the two sides of the cleaning shell are fixedly connected with a square block and a trapezoidal block respectively, a first penetrating hole is formed in the inner wall of the square block, and a second penetrating hole is formed in the inner wall of the trapezoidal block. The diameter of the first penetrating hole is larger than that of the second penetrating hole, the tail end of a needle protection spring penetrates into the first penetrating hole and the second penetrating hole in the square block and the trapezoidal block, the head and the tail of the needle protection spring can be screwed down in a rotating mode, and then the needle protection spring is wound on the outer wall of the rotating platform of the double-faced machine. The needle protection spring is tightened on the outer wall of the rotating platform under the action of tension retraction, so that the cleaning shell can be driven to rotate under the rotation of the rotating platform, and the cleaning shell is in contact with the platform, so that dust on the platform can be cleaned, the cleaning workload of workers is reduced, and the product quality can be enhanced by timely cleaning the dust.

The warp knitting machine with the static electricity eliminating function comprises a machine frame body, the machine frame body comprises supporting frames arranged in a bilateral symmetry mode and a cross beam arranged between the tops of the two supporting frames, and the supporting frames and the cross beam are each provided with a plurality of sets of warp beams; the looping mechanism is arranged in the rack main body; the guide bar mechanism is located above the looping mechanism, the guide bar mechanism comprises a plurality of guide bars, a guide bar cradle and a second driving part used for driving the guide bar cradle, and the top of each guide bar is provided with a static electricity eliminator used for eliminating yarn static electricity; and the static electricity eliminator is used for eliminating static electricity of yarns on the guide bar. By integrating the advanced static elimination technology, the yarn can be fully dispersed before entering a knitting area, the phenomena of entanglement and end breakage are avoided, and therefore the production efficiency and the product quality are improved.

The utility model belongs to the technical field of auxiliary equipment of knitting machines, and particularly relates to an oil injection device which comprises a pot body. A handle is arranged on one side of the kettle body, and the side wall of the handle is fixedly connected with the side wall of the kettle body; the outer circular wall of the kettle body is fixedly connected with a sleeve, and the sleeve is communicated with the kettle body; the inner circular wall of the sleeve is fixedly connected with a baffle ring; the inner circular wall of the baffle ring is in sliding connection with an inner pipe; the outer circular wall of the inner pipe is fixedly connected with an anti-falling ring; the utility model provides an oil injection device to solve the problems that in the prior art, an existing knitting machine needs to be regularly refueled and maintained through the oil injection device so as to ensure normal use of the knitting machine, the length of a spray head of the existing oil injection device is generally fixed, and operation is inconvenient. And the problem that some parts of the knitting machine need to be detached for refueling due to insufficient length of the nozzle during refueling, which brings a certain trouble to a user is solved.

The utility model relates to a flat knitting machine cleaning device which is installed on a flat knitting machine and comprises an installation block and a vacuum assembly, the installation block is arranged on the back portion of a machine head of the flat knitting machine, a cleaning brush is arranged at the bottom of the installation block, the vacuum assembly comprises a plurality of vacuum generators, the vacuum generators are connected with an air inlet pipe and a collecting pipe, and the collecting pipe is connected with the air inlet pipe. The end, away from the vacuum generator, of the collecting pipe is mounted on the mounting block, and a collecting container is detachably connected to the vacuum generator. The automatic cleaning device can automatically clean the flat knitting machine, and has the advantages of simple structure, low cost, good cleaning effect and the like.

The small circular knitting machine with the heat dissipation device comprises a supporting frame, a fixing base, a knitting mechanism, a supporting column and the heat dissipation device, the fixing base is fixedly installed on the supporting frame, the knitting mechanism is installed above the fixing base, the supporting column is fixedly installed on the fixing base, and the heat dissipation device is installed above the supporting column. The heat dissipation device comprises a top plate, a protective grating, a driving motor, fan blades and an illuminating lamp, the protective grating is detachably installed on the top plate, the driving motor is fixedly installed on the protective grating, and the fan blades are movably installed at the driving end of the driving motor. The driving motor drives the fan blades to rotate to accelerate air flow at the bottom of the fan blades, air circulation is formed, the cooling requirement of the bottom knitting mechanism is met, and the fan blades are protected by the protective grating; and meanwhile, the illumination lamp of an annular structure is arranged on the periphery of the protection grid, and illumination can be conducted according to working requirements.

The utility model discloses a lever-type yarn-breaking automatic stop mechanism, which relates to the technical field of yarn-breaking automatic stop mechanisms and comprises a driving plate, a supporting sleeve, a lever-type yarn-breaking automatic stop mechanism, a lever-type yarn-breaking automatic stop mechanism and a lever-type yarn-breaking automatic stop mechanism, the supporting ring is fixedly connected with the supporting sleeve; the infrared detector is arranged on the fixed plate and is fixedly connected with the fixed plate; the driving block is arranged at the bottom of the driving plate and is in fit sliding connection with the bottom of the driving plate; by arranging an elastic mechanism and a driving block, the extrusion of a driving plate on the driving block is buffered, and the situation that the yarn is broken or damaged due to the fact that the extrusion force of a supporting ring on the yarn is large is avoided; and by arranging the lifting mechanism, lifting of the driving block is achieved, different yarns can be extruded conveniently, and the supporting ring can respond to the infrared detector more quickly when the yarns are broken.

The invention relates to the technical field of textile machinery, and discloses a glass fiber flying and dust adsorption system based on intelligent negative pressure regulation and control and a regulation and control method.The glass fiber flying and dust adsorption system comprises the following modules: an adsorption module used for adjusting local wind pressure; the negative pressure supply module is connected with the adsorption module and can independently adjust the negative pressure of each suction port and match airflow distribution according to the suction port position and the production state parameter; the detection module is used for continuously collecting real-time air pressure data of each suction port, generating an air pressure curve changing along with time and collecting production state parameters; and the wind pressure control decision module is used for determining the wind pressure curve and the production state parameters. By means of dynamic linkage regulation and control of the suction ports of the cutter area and the stitch knitting area, diffusion of glass fiber flying and dust can be effectively reduced, precise distribution of local air pressure is achieved, and therefore the safety of the production environment is improved, harm to a production site and operators is reduced, and meanwhile the surface quality and consistency of final products can be improved.

A cloth cutting structure of an intelligent circular knitting machine structurally comprises a circular knitting machine base. The linear cutting type cloth cutting structure is arranged at the top of the inner side of the circular knitting machine base; a discharging seat is arranged at the top of the inner side of the circular knitting machine base, and a fabric output channel is arranged in the middle of the discharging seat; the linear cutting type cloth cutting structure comprises a cutting seat connected to the bottom face of the discharging seat, the intelligent circular knitting machine adopts the quick-release linear cutting type cloth cutting structure arranged on the discharging seat, the convenience of overhaul and maintenance is effectively improved, noise reduction is facilitated, knitted fabric enters the fabric output channel during working and is finally output through the output port, and the intelligent circular knitting machine is convenient to use. When fabric is in the output port and is located in front of the cutting line, when cutting is needed, a worker operates the control panel to enable the heater to input heat into the cutting line, meanwhile, the output end of the driving cylinder stretches out in advance, the heater drives the cutting line to conduct thermal cutting on the fabric, operation is easy, and the process is quiet.

The utility model discloses a spinning yarn detector with an anti-separation function, which relates to the technical field of yarn detectors, and comprises a yarn detector body, one side of the yarn detector body is provided with a circular ring, the circular ring is provided with a pick-and-place opening and a sliding chute, the sliding chute is connected with a plurality of sliding blocks in a sliding manner, and the plurality of sliding blocks are fixedly connected with the yarn detector body; the circular ring is supported through the two sliding blocks, the circular ring can rotate between the two sliding blocks through the sliding grooves, when the opening orientation of the taking and placing opening in the circular ring is the same as the opening orientation of the U-shaped groove in the yarn detector body, fibers can be placed in the U-shaped groove and the circular ring, then the circular ring is rotated, and the fibers can be taken out from the U-shaped groove. The opening direction of the taking and placing opening is opposite to the opening direction of the U-shaped groove, at the moment, fibers cannot be separated from the U-shaped groove, misjudgment of the yarn detector is avoided, and the detection accuracy is guaranteed.

To provide a yarn clearer having a cutting mechanism assuring a reliable cutting off of a yarn when required and a cutting mechanism.SOLUTION: A cutting mechanism for a yarn clearer which can be provided at an operation unit of a textile machine comprises: a housing body having a housing substrate, a housing cover defining a housing inner chamber with the housing substrate and a first housing opening; and a cutting device having a cutting means support body having a cutting knife, a cutting means drive device provided in the housing inner chamber and moving the cutting means support body between a cutting position and a rest position and a drive element combining the cutting means drive device and the cutting means support body. The housing body has a support part for movably storing the cutting means support body and a second housing opening adjacent to the support part, extending vertically to a moving direction of the cutting means support body and having an opening edge in contact with the cutting means support body.SELECTED DRAWING: Figure 1

This utility model relates to the field of yarn generation technology, and in particular to a yarn feeding and untwisting device. A yarn feeding and untwisting device includes a supporting main body, with a vertically upward-facing plate on one side. The upper end of the plate has a first through hole for yarn to pass through. A winding post, parallel to the upper surface of the main body, is mounted on the end face of the plate. A rotatable rotating disk is mounted at the end of the winding post, and a second through hole for yarn to pass through is located on the outer circumference of the rotating disk. This yarn feeding and untwisting device is supported by the main body, with a vertically upward-facing plate on one side. The upper end of the plate has a first through hole for yarn to pass through. A winding post, parallel to the upper surface of the main body, is mounted on the end face of the plate. A rotatable rotating disk is mounted at the end of the winding post, and a second through hole for yarn to pass through is located on the outer circumference of the rotating disk. This structure provides stable support through the main body and the plate, guides the yarn using the first and second through holes, and the rotating disk, in conjunction with the winding post, completes the yarn untwisting operation.

The invention discloses a disposable acupuncture needle milli fire needle and a preparation method thereof, the milli fire needle comprises a needle body and a needle handle, the needle body is made of stainless steel, the length is short, and the needle diameter is thin; the needle handle is made of medical plastic or metal materials, is long, and provides a safe distance and stable holding for operation. The preparation method mainly comprises the steps of needle body forming, needle handle injection molding or metal tube locking and pressing or metal wire winding forming, fixed connection of the needle body and the needle handle, post-treatment, terminal sterilization and packaging and the like. By means of the collaborative design of the specific short and thin needle body and the long handle, filiform needling and minimally invasive treatment of a fire needle therapy are achieved, the needle has the advantages of being small in trauma, low in pain and safe and convenient to operate, and the disposable sterile quality of a product is ensured through standardized preparation.

The utility model relates to the related technical field of detection of broken ends of knitting yarns, and discloses an automatic detection and alarm device for broken ends of yarns of a knitting machine, which comprises a multi-mode sensing module arranged on a yarn advancing path, the infrared transmission type photoelectric sensor and the micro tension strain sensor are arranged at intervals in the yarn moving direction. Through cooperation of the multi-mode sensing module, the alarm triggering module and the control unit, the yarn breaking situation can be judged through double-signal combination, so that the yarn breaking misjudgment rate is reduced to the minimum, the situation that the use process is affected by misjudgment is avoided, and through cooperative detection of the photoelectric sensor and the tension bimode sensor, the detection accuracy is improved. The accuracy of the whole detection process is guaranteed, the overall response speed is increased, and the waste condition caused by slow response of the yarn is avoided.

The utility model discloses a kind of automatic dust removal type intelligent detection warp knitting machines of anti-yarn flying, related to warp knitting machine technical field, including warp knitting machine main body, the side of warp knitting machine main body is provided with mounting bracket, the inboard of mounting bracket is provided with detection beam, the below of detection beam is provided with multiple detection probe, the below of detection beam one side is provided with cleaning frame, the inside of cleaning frame is provided with first cavity, the side of cleaning frame close to detection beam is provided with multiple micro air jet, the side of warp knitting machine main body is provided with air blower, air inlet pipe is arranged between air blower and cleaning frame, this warp knitting machine installs micro air jet near intelligent detection module, periodically spray airflow towards intelligent detection module by micro air jet, remove yarn flying and dust attached on intelligent detection module by the help of the airflow of injection, ensure that intelligent detection module clear vision, improve the accuracy of intelligent detection system.

The thread residue adsorbing and cleaning device for the knitting, sewing and turning integrated hosiery machine comprises a collecting box, a flow dividing pipe and an adjusting mechanism, the top of the collecting box is sleeved with a corrugated pipe, the end of the corrugated pipe is fixedly sleeved with a connecting pipe, the flow dividing pipe is located below the connecting pipe, and the bottom of the flow dividing pipe is fixedly sleeved with adsorption pipes at equal intervals; the adjusting mechanism is located on the flow dividing pipe, the adjusting mechanism is used for adjusting the angle of the adsorption pipe so as to adapt to different adsorption angles, and the adjusting mechanism comprises an adjusting pipe. The adjusting pipe, the bearing plate, the threaded column, the fastening ring and the locking column are matched with one another, the flow dividing pipe is connected with the connecting pipe through the adjusting pipe, the flow dividing pipe and the connecting pipe are supported through the bearing plate and the supporting plate, the supporting plate rotates circumferentially with the threaded column as the circle center, the angle of the flow dividing pipe is adjusted, and the flow dividing pipe is conveniently adjusted. The adjusting pipe stretches and changes the angle along with the adjusting angle, so that the angle of the adsorption pipe can be adjusted according to requirements.

The invention discloses a circle sewing machine comprising a pneumatic suspension deviation rectifying system, which relates to the field of clothing machinery and comprises a machine table and a sewing machine, a sewing machine needle plate is in a cantilever shape, elastic rolling supporting wheels are arranged on two sides of the sewing machine needle plate, a height-adjustable lifting type free roller is arranged below the sewing machine needle plate, and the pneumatic suspension deviation rectifying system is arranged on the right side of the sewing machine needle plate. The system comprises an air pressure suspension supporting plate, the rear end of the air pressure suspension supporting plate is connected with a first positive pressure air inlet and a second positive pressure air inlet, an internal main air channel is connected with a staggered branch air channel and a directional air outlet channel, and a low-resistance air film can be formed to achieve non-contact suspension and front-back deviation correction of cloth. The device protects cloth in a non-contact mode, adapts to cloth of multiple specifications, is accurate in intelligent deviation rectification, reduces cost and space, and guarantees sewing quality.

The utility model relates to the technical field of woolen sweater weaving, and discloses a fine-woven woolen sweater and an integrated weaving device, the fine-woven woolen sweater comprises an absorption mechanism, a limiting mechanism and a machine body mechanism, the absorption mechanism is located in the machine body mechanism, and the limiting mechanism is located in the absorption mechanism. The absorption mechanism comprises a storage frame, an air outlet screen is fixedly connected to the inner wall of the storage frame, a handle is fixedly connected to the front end of the storage frame, a fixing frame is slidably connected to the upper end of the storage frame, an exhaust fan is fixedly connected to the upper end of the fixing frame, and a conveying pipeline is fixedly connected to the input end of the exhaust fan. And the upper end of the conveying pipeline is fixedly connected with an air suction head. According to the flat knitting machine, due to the design that the exhaust fan is used for driving the exhaust head in the flat knitting machine body to exhaust air, the purpose of conveniently sucking and removing tiny impurities such as thread ends generated during weaving is achieved, the situation that too many thread ends block the interior of equipment, and consequently the weaving operation is affected is prevented, and the practicability of the equipment is improved.