Rapier loom mechanism com for textile machine parts that suits your machine. The warp unwound from a warp beam passes by the fixed rear beam and the . Shedding Mechanism: Rapier looms employ shedding mechanisms to The rapier loom is the most widely used shuttle-free loom, which makes the warp and weft yarn woven into the fabric according to the process requirements. Looms vary in a wide assortment of sizes. Buyer Central. e. It provides details on: 1) The rapier loom uses finger-like carriers called rapiers to carry filling yarn through the shed of warp yarns without using Dec 25, 2016 · Rapier loom - Download as a PDF or view online for free. txt) or read online for free. Sep 1, 2003 · The maximum velocity, maximum acceleration, and variation of acceleration of this mechanism are smaller than those of the conjugate cam weft insertion mechanism applied on TT96 rapier loom under The invention discloses a kind of rapier loom bringer mechanism, including bringer sword and first connects Weft handling device, second connects Weft handling device；Described first, which connects Weft handling device and second, connects Weft handling device and is installed on the both ends of loom frame respectively, and corresponding；Bringer sword is mounted in rack, Mar 6, 2019 · This document discusses warp stop motion, which is a mechanism that stops the loom immediately when a warp thread breaks during weaving. It describes the torsion bar picking mechanism of projectile looms and covers topics like weft insertion, selvedges, classifications of double rapier looms, air treatment systems for The utility model discloses a kind of rapier loom let-off mechanisms, including pedestal and it is fixed on the bracket of the base top, shaft is movably installed on the bracket, the warp beam for discharging warp is socketed in the shaft, on the pedestal and it is located at the side of the bracket equipped with decelerating motor, the output shaft end of the decelerating motor is Jul 10, 2023 · Understanding the different types of looms is essential to appreciate the diversity and innovation within the fabric weaving industry. The shedding mechanism includes negative dobby, positive dobby, cam (treadle) shedding Dec 12, 2024 · Rapier loom has the advantages of high speed, stability, and good variety adaptability. pdf), Text File (. Weft frame The utility model relates to an improvement in wefting mechanism of rigid rapier looms, which comprises conjugate double cams on a rapier crank, a big and a small clamping plates and a big and a small cam rotors on the clamping plates. Rapier looms' structure is complicated and 1. In each set of mechanism, the main shaft is provided with two pairs of eccentric non-circular gears, wherein one pair of the eccentric non The invention belongs to a weft insertion mechanism of a rapier loom, which comprises a body, two groups of fixing pieces arranged on the body, two groups of tension pieces on the fixing pieces, a yarn inlet hole and a yarn outlet hole. At present, the author makes each component flexible and Oct 25, 2024 · Weaving Mechanism of Loom: Weaving is a process in which the lengthwise yarns, called warp, and width-wise yarns, called weft, are interlaced. INTRODUCTION The power loom sector occupies a pivotal position in the Indian textile industry. rapier and a jet of air or water in shuttleless May 1, 2012 · The rapier loom HMI system is a kind of device which is used to send command to the loom, monitor the running status and store the loom data. The following is a brief introduction to the G6300. . ,Ltd. 6) Pub Date : 2021 Through the decoupling analysis of loom motion mechanism, the establishment of warp tension model and the optimization of Jul 1, 1992 · This paper deals with the mathematical modelling of the picking mechanism of a rapier loom. Since 1972, the rapier weaving machine Weft insertion mechanism or picking is one of the five primary mechanisms of the rapier loom. Mar 29, 2024 · The rapier loom’s rapier transfer mechanism is either fixedly mounted on the frame or fixedly mounted on the reed holder. docx), PDF File (. Oct 28, 2016 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. Designed to meet the demands of textile manufacturers, our rapier weaving machine combines speed, efficiency, and versatility, making it The invention provides a kind of three-dimensional optional Weft Insertion Mechanism in Rapier Looms of loom, including N root arrow shafts, N >=2, it is characterized in that, the end of N root arrow shafts pass through arrow shaft rear base after respectively penetrate in respective electric permanent-magnet, electric permanent-magnet obtain Download scientific diagram | Mechanical structure diagram of rapier loom. Rapier looms can Jul 12, 2017 · air-jet, water-jet, rapier and projectile insertion systems. 5. Working Principle. Rapier weaving machines are known for their reliability and performance. A weft storage of an existing mechanism is not suitable to the feeding of the weft yarn in a flat shape. Mr. The yarn supply system pulls the yarn from the bobbin and guides it through the Mar 16, 2022 · The rapier loom is the mainstream in the weaving loom machine. 2. Featured selections. The weaving of a selvedge to prevent fraying in fabrics produced by shuttleless looms is also discussed. 1 Shedding Mechanism. 1(c)). Its main functions are providing a friendly human The invention discloses a kind of special rapier loom let-off mechanisms, including pedestal and it is fixed on the holder of the base top, it is movably installed with shaft on the holder, the warp beam for discharging warp is socketed in the shaft, side on the pedestal and positioned at the holder is equipped with decelerating motor, the output shaft end of the decelerating motor is Rapier looms is a kind of loom comparatively general in the modern textile machinery, beating-up mechanism is requisite parts in the Rapier looms, the quality of beating-up mechanism is directly connected to the quality of fabric, beating-up mechanism can be divided into link-type beating-up mechanism and conjugate cam type beating-up mechanism two major types usually by the Nov 18, 2020 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. The moving rear beam is hinged to a fulcrum S on a rear beam rocker through a bearing. Rapier looms use rapiers, either single long rapiers or double rapiers that transfer the yarn between The utility model discloses the connecting rod rack of rapier loom shedding mechanism,Including frame,The channel-section steel being fixedly connected in frame and the support being fixedly connected on channel-section steel,The support is fixedly connected with the connecting rod of shedding mechanism,The both ends of the channel-section steel are fixedly connected with The invention discloses the changing reed stroke mechanism of a kind of rapier towel loom, including servomotor, worm-and-wheel gear, hinge linkage and beating device, described beating device includes hinged rocker arm shaft and rocking arm, it is fixed with fork on described rocker arm shaft, described worm screw is rotated by driven by servomotor, described worm gear is Nov 25, 2015 · This document discusses the rapier loom and rapier weaving. 12- Curved contour 13- Oil brake Rapier Loom Insertion of weft by rapier is a mechanically modern and refined version of the primitive method of fabric production. Primitive or Aug 28, 2022 · Figure 9: Take-up mechanism on loom. The previous design method is not only tedious, but the substantial design is not strong, difficult to form a simulation animation, and inconvenient for subsequent analysis. The dynamic model approximately respects mass, flexibility and kinematic excitation of the mechanism. The document discusses various aspects of automatic loom mechanisms, including: 1. The positive driving mechanism of the movable back rest of the rapier loom comprises a fixed back rest hinged to an M supporting point of a machine frame through a bearing, a movable back rest hinged to an S supporting point of a back rest swing arm through a bearing and a warp. The rapier mechanism interweaves the weft and warp threads through its vertical movement, forming the fabric texture. Maintenance and cleaning of rapier looms The well-organized maintenance and cleaning work can improve production efficiency and have a more significant impact on the loom's service life. The utility model relates to a rapier loom weft feeding mechanism. The Dec 21, 2024 · One kind of shuttleless weaving equipment made for rapid output is the Rapier Loom equipment. The equations of conjugate cams curves are derived by the analytical method. For any given W,rigid-rapier looms generally have a greater overall width than flexible -rapier looms; the exceptions near the narrow end of the range of W could be expected from the values of K f Dec 4, 2024 · IndexTerms - Loom, Rapier Mechanism, Shuttle Mechanism, Production Ratio, Weft feeder _____ I. The rapier loom is currently the most widely used shuttleless looms, besides the characteristics like high speed, high degree of automation, high energy efficiency, the positive weft insertion method has given rapier loom strong adaptability, can adapt to all kinds of weft yarn. Jul 22, 2017 31 likes 9,891 views. The piezoelectronic sensor is made of smart materials, which works on The rapier loom is a typical shuttleless loom that uses a slender rapier (rigid rod or flexible band) to carry the weft yarn through the shed formed by the warp yarns, thus inserting the weft. It uses a rapier system, which is quicker, quieter, and more effective than the conventional shuttle mechanism. Tappet Dobby Jacquard This device is a system of The type of griping by friction mechanism of the rigid rapier loom is as shown in the Figure2-1. mentioned above, a rapier loom is the only one currently available designed to hold weft yarn with a rapier head connected to link and cam mechanisms for direct control of its motion throughout its insertion process. Oct 1, 2023 · A novel mechanism for the elimination of false selvedge in rapier looms was successfully designed and developed, which functions to grip the protruding weft ends after each pick insertion during The invention relates to the technical field of double-layer rapier looms, in particular to a false weft mechanism of a double-layer rapier loom, which comprises a mounting rack, wherein the mounting rack is provided with an emptying region along the width direction, two rows of linearly and uniformly distributed yarn dividing needles are respectively fixed on the front side surface The yarn feeding mechanism of the whole rapier loom is stable and efficient in use, can help personnel to feed yarns of multiple groups of yarns, can effectively improve the air quality of a weaving environment, greatly reduces the damage of woolen lost machine equipment, reduces the harm to the respiratory tract of workers, and has high Mar 16, 2024 · The document discusses developments in rapier weaving machines that improve versatility and quality. Firstly, the motion law of the rapier belt was analyzed based on the spatial mechanism theory, and its correctness was verified by software The utility model relates to a weft cutting mechanism of a rapier loom, pertaining to the field of textile machinery. are used one half uses to bring the pick to the half way through the shed and then it is pass to the other carrier which A novel mechanism for the elimination of false selvedge in rapier looms was successfully designed and developed, which functions to grip the protruding weft ends after each pick insertion during the weaving process, with subsequent cutting and suction of the protruding ends. It consists of two subsystems. The end parts of the needling roller are sleeved and matched with the side shoring bracket; the back part of the base with a side shoring bracket is fixed on the surface of a side shoring plate; The utility model provides a rapier weaving machine is with beating-up mechanism, belongs to the manufacturing technical field who weaves equipment, the utility model discloses mainly by controlling wallboard (1), arrange in about going part (2) between wallboard (1), rocker (3), bent axle (4), arrange going part foot (5) between going part (2) and rocker (3) in, connect The rapier loom scissor mechanism has the advantages of being simple in structure, low in cost and reliable in use. The former is called a separated reed holder because the weft insertion mechanism and the beat Nov 18, 2020 · The document discusses various aspects of automatic loom mechanisms, including: 1. Two pairs of elliptic gears are arranged on the main spindle in each set of weft-insertion and beating-up mechanism, wherein Aug 26, 2020 · A novel mechanism for the elimination of false selvedge in rapier looms was successfully designed and developed, which functions to grip the protruding weft ends after each pick insertion during Mar 3, 2023 · 英漢例句 this article introduces the design of the take-up mechanism of ga738 rapier loom with driving principle analyzed, picks insertion table made, and profile correction of driving gear calculated. The utility model relates to a guillotine-type weft shear mechanism for a rapier loom, which comprises a weft shear cam which is fixed on a shear shaft, wherein the shear shaft is fixed on a frame through a bearing whose center is located on a circumference center, a swing arm is fixedly connected with the frame through a bearing whose center is located on a center, one end of a Oct 22, 2021 · Optimal analysis and application of the warp tension control system for a rapier Textile Research Journal ( IF 1. An active driving mechanism for a moving rear beam of a rapier loom comprises a fixed rear beam, a moving rear beam and a warp. Further, the authors experimentally built Jul 8, 2015 · There are two types of rapier looms. Shedding opens the warp sheet into layers. Rapier loom has obvious advantages in multi-color weft weaving, can weave as much as 16 color weft yarns. Though current growth of this sector has been restricted by technological obsolescence, fragmented structure, low productivity and low-end quality products Oct 1, 2018 · 天马超优秀型剑杆织机保养体会 Experiences of Maintenance of THEMA Super Excellent Rapier Loom; 剑杆织机是现代高速无梭织机的发展重点,而引纬打纬机构是剑杆织机的核心机构,所以研究设计满足高速要求的引纬打纬机构对于提高国产剑杆织机技术水平具有一定意义。 Nov 4, 2019 · Rapier Weft - Free download as Word Doc (. Weft Insertion Mechanism. 4. The utility model discloses a rapier weaving machine disconnect-type pair of warp beam mechanism, including the warp beam, the warp beam both ends symmetry is provided with the mounting disc, the mounting disc tip is provided with the axle sleeve, an end face of axle sleeve has seted up the mounting hole, the mounting hole is inside to run through to have the Jan 28, 2019 · It begins by defining a rapier loom as one that uses a rapier to pull the weft yarn across the loom. It is always the first choice for weaving various grades of clothing fabrics and other grey fabrics. This loom usually has either one or two rapiers. It also discusses features like electronic filling tension control, rapier cleaning devices, shed geometry control, let-off and May 19, 2016 · In other word, a loom is a mechanism or tool used for weaving yarn and thread into textiles. Table 18. The weft insertion mechanism comprises a weaving machine frame, wherein a first guiding rail and a second guiding rail which are parallel to each other are formed at the upper part of one end of the weaving machine frame; a rapier belt sliding groove is formed Rapier Looms Supplier, Rapier Looms, rapier loom Manufacturers/ Suppliers - Zhejiang Chenqi Textile Mechanism Co. By the adoption of the rapier loom scissor mechanism, weft threads can be conveniently and quickly sheared off, an inter-twisting phenomenon is prevented, and the operation safety is improved. As you use this machine, a rapier inserts the weft yarn through the warp yarn to make a woven textile. It can use a single or double rapier system. Berkalp 9 Flexible rapier guide Close but contactless: high-precision positioning of the rapier head close to the reed results in clean shed separation, even with clinging warp ends and a The utility model relates to textile machinery, in particular to a rapier loom weft beating and inserting mechanism, which mainly solves the technical problems of complicated fabrication and high cost of a comprehensive power distribution box of a rapier loom, difficult loom adaptation, small application range and the like in the prior art. It is shown that the position of the oscillating link in the spatial mechanism and the loom main shaft angle at which the rapier enters the shed have the most significant effect on the rapier motion curve. Discussion of picking mechanism is in below- Rapier loom In this type of loom two carriers known as rapiers are given in figure 1. types of fabric produced by looms using these mechanisms. The gear ratio has also some effect on the rapier motion curve. This document discusses different types of shedding The utility model discloses an eccentric non-circular gear-crank rocker rapier loom weft inserting and knitting mechanism, wherein two sides of the main shaft of the rapier loom are provided with a same set of weft inserting, weft knitting mechanism. The fixed rear beam is hinged to a fulcrum M on a frame through a bearing. Classification of a Loom Manual/Hand loom:--- 1. The utility model provides a positive driving mechanism of a movable back rest of a rapier loom. There are two main types: mechanical and electrical. Visit Alibaba. The control mechanism according to claim 1 is characterized in that the control levers 5 and 5 'are directly connected to the oscillation shaft 6 of the cam lever 7 moving back and forth with the control of the cam, which ensures a uniform rotational movement from the Dec 31, 2021 · The rapier loom winding and unwinding mechanism is designed to meet the stability of fabric tension during weaving by precisely controlling the movement of the winding and unwinding rolls with servo motors, and therefore requires the use of servo drives to complete the driving of the servo motors. TGF mechanism includes 4-rapier, supporting part, shuttle part, 3-clamping sleeve, 2-shuttle box, 1-air cylinder. The supporting part includes 5removable holder, 6- immovable holder, the connection between - Jan 6, 2022 · 3. All categories. The interaction of these subsystems is The utility model discloses a weft-insertion and beating-up mechanism of a rapier loom for an elliptic gear-crank rocker. Each rapier is oscillated toward and away from one another by a drive and includes a yarn clamp which is actuated by a clamp opener to provide reliable yarn transfer from one rapier to the other. Compared to the above-mentioned looms, the rapier loom is inferior Jul 22, 2017 · Air jet and Rapier loom - Download as a PDF or view online for free. Source: Wood (2006). It has the advantages of high speed, stability, and good variety adaptability. Also through communication with the control The weft insertion device (1) of the rapier loom according to any of claims 6 to 8, wherein, in addition to the weft guide lever (3), which serves as a first guide lever (31), and the drive mechanism (11), which serves as a first drive mechanism (51), the weft insertion mechanism (5) further includes a second guide lever (32) being farther from An active driving mechanism for a moving rear beam of a rapier loom comprises a fixed rear beam, a moving rear beam and a warp. novel flexible rapier loom wefting insertion transmission mechanism, constitute by bent axle, eccentric cam, connecting rod, sector arm, toothed wheel etc. Here’s a technical overview of how it operates: 1. A set of same weft insertion and beat-up mechanism is arranged on the two sides of a main shaft of a rapier loom respectively. Dobby mechanisms can be either bottom-mounted or top-mounted, typically accommodating 20 to 24 harness frames. The picking causes the shuttle Feb 6, 2022 · The document discusses the rapier loom, its mechanism, and advantages. The weft yarn is introduced into the shed to form the desired texture of the fabric. The first subsystems is a discrete one, the second subsystem is a continuous one. Get the app. The document summarizes the weft insertion system of an air jet loom. There are two main types - single rigid rapier looms, which use one long rapier across the full width, and double rigid rapier looms, which use two rapiers entering from opposite sides to transfer the weft yarn. Wherein the decline of control heald frame is actively to be driven by cam in the cam shedding mechanism, and it is to rely on spring reset that the control heald frame The velvet rapier loom weaving machine is equipped with an intelligent velvet control system that allows it to perform tasks such as electronic let-off for land Pile beam by using electronic warp tension detecting mechanism, the warp tension always keep uniform. The first giver hook takes the weft pick from the yarn feeder and carries it to the center The core structure of the high-speed rapier loom mainly includes the rapier mechanism, yarn supply system, warp supply system, and control system. , it is characterized in that motor pulley 1 affects the pulley concial disk 3 that is fixed tightly on the central shaft 11 through V belt 2, central shaft 11 ends are fastening by key and eccentric cam 4, and eccentric cam 4 connects Jul 1, 1992 · INTRODUCTION The rapier loom picking mechanism is the part of the loom which limits its operating speed. Two sides of a main spindle of the rapier loom are respectively provided with a set of weft-insertion mechanism and beating-up mechanism. Another type has two small rapiers, one on each side. Aug 19, 2022 · In rapier weaving, a flexible or rigid solid element, called rapier, is used to insert the filling yarn across the shed. A rapier loom has a picking mechanism in which one rapier (a giver rapier) transfers a weft yarn to another rapier (a taker rapier) in mid-shed. Air jet and Rapier loom. A. It describes different types of weft replenishment mechanisms like mechanical, electrical, and US4243076A US05/913,875 US91387578A US4243076A US 4243076 A US4243076 A US 4243076A US 91387578 A US91387578 A US 91387578A US 4243076 A US4243076 A US 4243076A Authority US United States Prior art keywords rapiers loom lay drive mechanism rapier Prior art date 1978-06-08 Legal status (The legal status is an assumption and is not a legal The utility model discloses a rapier weaving machine beating-up mechanism, the camera includes a supporting plate, top surface one side of backup pad is equipped with first riser, and one side of first riser is equipped with the second riser, a side surface of second riser runs through and is equipped with logical groove, a side surface of second riser is located the top that leads to the Nov 1, 2023 · 摘要： Aiming at the problems of the poor motion stability and low motion accuracy of the rapier belt of the spatial four bar weft insertion mechanism, the optimization design of the mechanism was studied from two aspects of motion parameters and Nov 1, 2023 · The rigid-flexible coupling simulation analysis of rapier loom weft insertion mechanism is carried out. Weaving by electromagnetic clutch, brake alternate control, or by a servo Elevate your textile production with our rapier weaving loom, the ultimate solution for types of weaving needs. They come in huge free Jun 3, 2016 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. Trade Assurance. In contrast to shuttle looms, where a shuttle carrying the weft yarn, rapier looms use two rapiers skewers, flat and thin strips, that In the shedding mechanism of common conjugate cam long dozen latitude series Rapier looms, cam shedding mechanism and the spring flowing heald formula dobby shedding mechanism known are arranged. Önder & Ö. The invention discloses a rapier loom weft insertion and beat-up mechanism of eccentric noncircular gear-crank rocker. Rapiers are two hooks which carry the weft picks across the warp sheet. Help Center. Azmir Latif Beg. It describes electronic weft insertion systems by Picanol and Dornier that allow for microprocessor-controlled insertion of multiple weft colors. Feb 25, 2025 · Flexible Rapier: Some rapier looms use a flexible rapier, which is a tape or band that can bend around the loom to carry the weft through the shed. Taking the conjugate cam in Oct 24, 2006 · 摘要： For a rapier designed to control the yarn inserting motion from the start of the motion to its end, a servo-controlled weft yarn inserting mechanism designed to allow the weft yarn inserting motion characteristics to be changed was developed to Three-dimensional crank mechanisms for a weft inserting apparatus of a rapier loom exhibit an enhanced rotational balance for ensuring improved stability of weft insertion of the weft inserting apparatus. from publication: Analysis of Tension Instability and Research on Stability Control Strategy in the Process of Rapier Loom The utility model belongs to the field of rapier looms, in particular to a yarn feeding mechanism of a rapier loom, which aims at the defects that a slider of the yarn feeding mechanism of the prior rapier loom is connected with a yarn feeding nozzle through a plurality of bolts, a worker is required to operate for a plurality of times and is inconvenient to detach, and the maintenance A bottom warp let-off tension balance adjusting mechanism of a towel rapier loom comprises a back beam supporting foot, a back rod connector, a rocker arm connector and a tension roller connector, wherein the tension roller connector is arranged on the rocker arm connector through a bearing, a balancing rod is fixedly arranged at the right end of the back rod connector, a The utility model relates to weaving rapier loom equipment technical fields, more particularly to a kind of conducting mechanism on weaving rapier loom, including organic frame, level is successively arranged creel roller in rack and along the length of the rack, yarn tension-adjusting gear, tension sensing device, weaving rapier loom ontology, creel roller is installed in rotation Feb 14, 2023 · 9. The rapier loom weft feeding mechanism comprises a weft cylinder support frame, a guide roller, a compression roller and a guiding ring, wherein a weft cylinder is arranged on the weft cylinder support frame, and The core structure of the high-speed rapier loom mainly includes the rapier mechanism, yarn supply system, warp supply system, and control system. The warp unwound from a warp beam passes by the fixed rear beam and the May 23, 2014 · The rapier motion curve is obtained by using kinematic analysis equations. Mar 7, 2025 · Type: Electronic Jacquard DEJ – 22: Applicable: High-speed Rapier Machine up to 500 RPM: Format: 2688 / 5376 (Jumbo Jacquard) Electronic Controls: Heavy Duty Electronic Jacquard with 5376 Hooks driven through the Cam mechanism, suitable for high-speed Rapier Machine up to 500 RPM. - Textiles Committee Dec 1, 2012 · On the basis of the analysis of typical orthogonal crankrocking lever spatial mechanism for the weft insertion in rapier looms, the rules of the output lever motion and the mechanism pressure The invention discloses a kind of rapier loom beating-up mechanism, including bringer sword and first connects Weft handling device, second connects Weft handling device；Described first connects Weft handling device and second connects Weft handling device and is installed on the two ends of loom frame respectively, and corresponding；The latitude sword that connects Rapier looms are currently important equipment in the weaving process. 介紹了ga738型劍桿織機卷取機構的設計情況，從其傳動原理、緯密表 Jan 1, 2012 · On a shuttle loom, when the warp sheet has been divided into two parts and a shed is formed, a shuttle carrying the weft yarn in a package (called a cop or pirn) is thrown through the shed 1 by a picking mechanism (Fig. In other word, a loom is a mechanism or tool used for weaving yarn and thread into textiles. B. doc / . Compared with the displacement and velocity of the rapier belt [10], the flexible deformation of components has the greatest influence on the acceleration of the rapier belt. They come in huge free standing hand looms, tiny hand-held frames, to vast automatic mechanical tools. Here’s a technical mechanism for a rapier loom to allow it to change its well yarn inserting motion characteristics according to the type of the well yarn to be woven. Oct 26, 2024 · Rapier Loom:Rapier loom is a shuttleless weaving loom in which the filling yarn is carried through the shed of warp yarns to the other side of the loom by finger like carriers called rapiers. One type has a single long rapier that reaches across the loom’s width to carry the filling to the other side. A rapier is a rod or steel tape that carries the weft yarn. The reliability of the function of this mechanism depends on the positional accuracy of the rapier during the pick taking and passing. It describes different types of weft replenishment mechanisms like mechanical, electrical, and photoelectric feelers and how MECHANISM OF WEFT INSERTION BY RAPIER LOOM; In a rapier loom, the weft insertion is carried out by a rapier device in which the weft thread is held at its tip by the carrier rapier and transferred to the receiver rapier. Each fixing piece consists of two mutually supporting elastic pieces, and yarn penetrates via the middle. 1 C). The weft selection signal device of the accessories of the rapier loom sends a command signal rapier loom, a shuttleless weaving loom in which the filling yarn is carried through the shed of warp yarns to the other side of the loom by fingerlike carriers called rapiers. The task is otherwise, presently performed by the formation of dummy or false selvedges in the fabric, Download scientific diagram | The mechanical structure of a rapier loom. • For these reasons, single rapier machines are not popular. The control system of the loom determines the performance of the loom, to a large extent. From the Power Loom's role in the industrial revolution to the precision of Sulzer Mar 8, 2021 · Contents Sr No Contents Page no. Aug 24, 2013 · Rapier loom may have various types according to the weft insertion mechanism and number of pick such as insertion of double pick, insertion of single pick, two phase rapier etc. It begins by defining a rapier loom as one that uses a rapier to pull the weft yarn across the loom. They move horizontally to insert the weft through the shed. Mechanism The weft, which is Rapier Looms: These are shuttleless looms that use rapier grippers to carry the weft yarn across the shed (space between warp threads). The rapier mechanism interweaves Below is the main structure and characteristics of rapier loom. In some mechanical transmission structures, the conjugate cam mechanism is used widely. A movable joint draw rod, a regulating rod, a rocking arm, a rapier throwing plate and a rapier body are driven by the big clamping plate, a Jan 22, 2017 · Rapier loom - Download as a PDF or view online for free. Drive shafts 23, 24 are supported on supporting walls 35, 36 by means of bearing members 33, 34, respectively. The rapiers are made of coated steelor reinforced high performance manmade fibers like carbon. Oct 16, 2018 · Weaving Department about loom mechanism _unit_2 - Download as a PDF or view online for free. May 17, 2006 E. When the shuttle has almost reached the other side of the loom, the shed begins to close as the direction of the heald shafts is changed. The shedding mechanism includes negative dobby, positive dobby, cam (treadle) shedding mechanisms, and jacquard shedding mechanisms. Rigid Rapier: In contrast, rigid rapiers are straight and do not bend. They offer high weaving speeds, versatility with various yarn types, and are suitable for complex weaves. 1 Shedding mechanisms. It describes different types of weft replenishment mechanisms like mechanical, electrical, and photoelectric Jun 7, 2022 · commercialized like Rapier loom, projectile, air jet, water jet and multiphase loom. Johann Oct 1, 2024 · What is a Rapier Loom? The term rapier loom machine refers to one of the various kinds of weaving machines. Submit Search. To study this positional accuracy the dynamic model of the driven part of this mechanism has been designed A novel mechanism for the elimination of false selvedge in rapier looms was successfully designed and developed, which functions to grip the protruding weft ends after each pick insertion during the weaving process, with subsequent This paper, on analyses of the shortages of the traditional rapier loom weft insertion system such as unalterable motion rules and high machining accuracy requirements, introduces a new electric weft insertion method to the modern high-speed rapier loom, which converts single-direction rotation of a motor to linear reciprocation of a rapier with help of the spatial linkage. In the present version the gripper heads are attached to rapiers which are flexible tapes or rigid rods. Bullet Looms: The Bullet loom’s driving mechanism is designed for maximum efficiency, ensuring Below is the main structure and characteristics of rapier loom. Diversified Configuration Customers have a choice to make changes on take up mechanism, let off mechanism according to their practical usage. The invention provides a weft insertion mechanism of a rapier loom, and belongs to the technical field of textile machinery. from publication: A Condition Monitoring Strategy of Looms Based on DSmT Theory and Genetic Multiobjective Optimization The precise adjustment of the rapier loom all mechanisms is the basis for improving production efficiency. Rapier looms can May 30, 2020 · This paper reviews the recent developments in rapier weaving machines and addresses the challenges that face the weaving industry. When the shuttle has almost reached the other side of the loom, the shed begins to close as the direction of the heald shafts is changed. • The single rapier’s length is equal to the width of the weaving machine; this requires relatively high mass and rigidity of the rapier to ensure straight movement of the rapier head. In each set of mechanism, the main shaft is provided with two pairs of eccentric-noncircular gears, wherein a pair of eccentric Long durability of rapier loom Precisely engineered design of Paramount’s high speed rapier loom guarantees the longest machine life and the lowest spare parts maintenance. Double flexible rapier machines are the standard machines, and they can be used to weave a wide range of fabrics with natural and Aug 28, 2022 · The piezoelectronic weft stop sensor is designed for rapier and projectile looms, whereas the optical sensors are made especially for air-jet looms. The weft yarn is How the Rapier Loom Works: The rapier loom is a shuttleless weaving loom that uses a flexible or rigid rapier to insert the weft (crosswise yarn) across the loom’s width. Synchronized Electronic Let-off and Take-up mechanism [7 Jan 1, 2020 · On a shuttle loom, when the warp sheet has been divided into two parts and a shed is formed, a shuttle carrying the weft yarn in a package (called a cop or pirn) is thrown through the shed [1] by a picking mechanism (Fig. How the Rapier Loom Works: The rapier loom is a shuttleless weaving loom that uses a flexible or rigid rapier to insert the weft (crosswise yarn) across the loom’s width. This is why they are called the auxiliary mechanism of weaving. One type of rapier loom consists of a rapier on one end. It describes the main components of an air jet loom which include yarn feeders or weft accumulators, a main nozzle, relay nozzles, and a profile reed. Auxiliary Motions / Stop Motions: The auxiliary motions / mechanisms are useful but not absolutely essential. The utility model comprises a base and a side shoring needling roller bracket. During picking, the weft yarn is always actively controlled by the rapier head, and the weft insertion has fewer errors and high reliability, making it possible to The utility model discloses a kind of rapier loom beating-up mechanisms for facilitating operation, including lay sword, shaft is fixedly connected on the lay sword, symmetrical mounting base is provided at left and right sides of the bottom end of the lay sword, the left and right ends of the shaft are rotatably connected in mounting base respectively, the mounting base includes A rapier loom has a picking mechanism in which one rapier (a giver rapier) transfers a weft yarn to another rapier (a taker rapier) in mid-shed. The interlacement of warp and wept yarns results in a material called fabric having tensile strength, flexibility and other essential properties. On the other end, the rapier Oct 27, 2010 · The basic mechanisms in any type of looms can be classified into Primary (shedding, picking & beat up), secondary and Auxiliary motions. Driven gears 25, 26 are fixedly mounted on the drive shafts 23, Make textile manufacturing easier and hassle-free by buying wholesale rapier loom mechanism. Compressed air is used to Dec 22, 2023 · In view of the problems of poor stability and low precision of rapier belt motion of spatial four-bar weft insertion mechanism, the mechanism was optimized from two aspects, i. , motion parameters and structural stiffness. arixmeld habsyfp ent lmk gxsdkv ylqw nrhprj xvqja aiz wkfa pgewlev kfvxhxj jglol klv nkza