Rapier loom mechanism. Weft insertion agency.

Rapier loom mechanism Four-Bar Weft Insertion Mechanism of Rapier Loom Menglu XI*, Kaihong ZHOU**, Xueqian ZHANG***, Xin LU**** *College of Mechanical and Control Engineering, Guilin University of Technology, Guilin 541006, China, E-mail: xmlachieve@163. 5 inches; the rigid rapier, 9. The looms might have different attachments like dobby, jacquard, double beam feeding, and pick at will and so on. The weaving cycle These electronic jacquard machines seamlessly synchronize with power looms, rapier machines, airjet machines, and waterjet machines. 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 TexConnect is back with another video on Rapier Weaving. May 16, 2012 · In theory, the projectile loom would produce approximately 8. in/writereaddata/files/pub Feb 1, 2019 · of rapier looms exist: (1) Single rapier looms use a single rigid rapier loom that enters the shed from. The Rapier Jacquard Machine is perfect for producing high-end, customised textiles since it can weave elaborate and complex designs when equipped with a Jacquard mechanism. From the bustling factories of urban centers to the quaint workshops tucked away in rural landscapes, rapier loom weaving serves as a testament to human creativity and ingenuity. 2 Woven fabric construction parameters Jan 6, 2022 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. In Dornier rapier weaving machine, the highest peak yarn tension is extremely low due to the low rapier speed and positive control. The beat-up motion lays the previously laid weft to the fell of the cloth. According to the principle of weft insertion, weaving looms can be divided into shuttle looms, projectile loom, rapier loom, and air-jet A distinctive feature of most rapier looms is that the weft'is attached to the insertion element, the rapier in this case, at a point near the entrance to the shed, rather than at the point from Jan 1, 2020 · Single-phase shuttle-less looms, such as rapier, projectile, air-jet, and water-jet are considered to be the second generation of weaving machines in which the primary mechanisms of weaving (i. Jun 4, 2011 · Disadvantages of Projectile Loom: High initial investment. Mar 16, 2022 · Double rapier loom. Rapier Loom mechanism is modest; Rapier loom machines can produce between 200 and 260 pieces per minute. Aug 28, 2022 · In this type of loom, a shuttle, which carries the weft yarn wound on a quill, is transported from one side to the other and back. com **College of Mechanical and Control Engineering, Guilin University of Technology, Guilin 541006, China, 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 Mar 1, 2007 · There are different types of rapier looms in terms of driving mechanism, type of rapier and weft transfer. In order to make the rapier loom realize automated production and further improve the production efficiency of the rapier loom, improve the programmability of the system, and reduce the cost of system maintenance. The document discusses the rapier loom, its mechanism, and advantages. 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. Rapier weaving machine 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. 2) There are two main types of rapier mechanisms - the Gabler principle where the yarn is loop transferred, and the Dewas principle where the yarn is gripped. Unlike other types of shedding, such as linkage, electronic, and negative cam shedding, conjugate cam shedding uses double cam locking to lift the heald frame. It also delivers a higher power factor while yielding quality fabrics. Fig: Picking mechanism The picking mechanism passes weft thread from one selvedge of the fabric to the other through the shed by means of a shuttle, a projectile, a rapier, a needle, an air-jet or a water-jet. This paper investigates the warp let-off and take-up mechanism of rapier looms to solve the problem that the warp tension of rapier looms fluctuates greatly and the warp let-off is difficult to Jan 1, 2025 · Conjugate cam shedding is a commonly used mechanism in weaving, which has been widely applied in high-speed looms such as water-jet loom, air-jet loom, and rapier loom, etc. novel flexible rapier loom wefting insertion transmission mechanism, constitute by bent axle, eccentric cam, connecting rod, sector arm, toothed wheel etc. The thesis developed a rapier loom control system based on embedded soft PLC Water-jet looms have parts detailed to explain working mechanism. At present most widely used weft transfer is the two rapier direct end transfer system. In the mid-twentieth century, shuttleless weft insertion started to emerge. Rapier looms can Jan 1, 2012 · Shedding mechanism has become more versatile. DF51 rapier loom represents the highest level of China high speed rapier loom machine. Oct 29, 2019 · In the last 50 years of the 20th century, the rapier looms made remarkable progress. 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 This paper investigates the warp let-off and take-up mechanism of rapier looms to solve the problem that the warp tension of rapier looms fluctuates greatly and the warp let-off is difficult to The motion law of the rapier and the characteristics of rapier loom’s weft-insertion mechanism were analysed. 2 minutes. The RFRL30 high speed rapier loom is primarily designed and used for weaving natural, synthetic, rayon, and blended yarns into various complex cloth, upholstery fabric, fiberglass fabrics, filter fabrics, and industrial fabrics for safety applications. Types of Electronic Jacquard Loom? – Single Lift Electronic Jacquard – Double Lift Electronic Jacquard – Multi-Lift Electronic Jacquard – Double Cylinder Electronic Jacquard – Double Rapier Electronic May 26, 2017 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. This paper is concerned with the application of filling yarn presenter with the help of Arduino mega controlled by various analog and digital inputs. Dec 21, 2024 · What is a Rapier Loom Machine? One kind of shuttleless weaving equipment made for rapid output is the Rapier Loom equipment. 4 inches of fabric per minute; the flexible rapier, 10. Suitable for narrow loom. To learn the construction of over picking mechanism; Features of over picking mechanism: Picking arm is over shuttle. When the double rapier is used for weft insertion, both sides of the loom are equipped with rapiers and corresponding rapier transmission mechanisms. Types of rapiers are detailed (e. Without modification, these machines are capable of weaving fabrics up to 110 inches. e. Negative tappet shedding mechanism. shedding, picking and beat-up) take place in one loom cycle, thereby inserting one pick in a single phase. Shedding opens the warp sheet into layers. 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 RFRL31 high speed rapier loom inherits the desirable features from our older RFRL30 weaving machine. A 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. You can trust Weavetech for the best Rapier Loom Manufacturer in Gujarat. Rapier looms can Download scientific diagram | The mechanical structure of a rapier loom. Rapier looms can Sep 23, 2021 · At present, the rapier loom has gradually become the mainstream equipment in the manufacturing industry. You may also like: Different Types of Modern Loom | Advantages of Modern Loom Over Conventional Loom; Motions of Loom and Their Functions in Weaving Machine; Basic Parts of a Weaving Loom and Their About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright In multi-harness looms, individual warp yarns are threaded through no more than one heald mail. It is placed in a slot 'A' in the right rapier head and as the rapier advance towards the centre of the Loom, the yarn passes from its clamped position round the head, to the supply package in the form of hair pin . May 17, 2006 E. Synchronized Electronic Let-off and Take-up mechanism [7 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. Contents Sr No Contents Page no. Apr 23, 2023 · The loom timing is shown Loom timing diagram for shuttle loom (early shedding) Sley Motion 0°: Beat-up takes place and sley occupies its forward most position 180°: Sley occupies its backward most position 0°-180°: Sley moves backward 180°-360°: Sley moves forward Picking and Checking 80°-110°: Picking mechanism operates 105°-110 Jan 1, 2010 · 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 This paper is concerned with the application of filling yarn presenter with the help of Arduino mega controlled by various analog and digital inputs. By combining the key techniques of the world’s leading rapier loom manufacturers and our own development and improvement, we are proud to introduce to the market our best rapier loom. Visit Alibaba. This reduced yarn stress leads to less yarn breakage and higher fabric quality, particularly when working with delicate or specialty yarns. As you use this machine, a rapier inserts the weft yarn through the warp yarn to make a woven textile. 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 1. Cleaning and maintenance of the loom Read article about Basics of Weaving Technology and Modern Looms - The basic mechanism in any type of modern looms can be classified as Primary Motions, Secondary Motions and Auxiliary Motions. Finally, the rapier loom has a simple weaving woking mechanism. Rapier looms can Jul 10, 2023 · Understanding the different types of looms is essential to appreciate the diversity and innovation within the fabric weaving industry. com for textile machine parts that suits your machine. Figure 2: Beating and Picking Mechanisms Feb 13, 2015 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. Compared to the above-mentioned looms, the rapier loom is inferior Feb 14, 2012 · Basic Weaving Mechanism of Loom; Rapier Weaving Machine: Types, Weft Insertion… Stop Marks, Starting Marks and Setting Shed in Weaving; Weaving Wonders: The Jacquard Loom's Dance with… Different Weft Insertion Techniques in Weaving; Basic Weaving Techniques for Beginners Figure 1. In this paper, a cross-connect method for simulating the rapier picking of a rapier loom (shuttleless loom) is proposed to imitate the shedding and the picking Modifications and Replacements:The picking and beating mechanisms of Plain English loom are replaced by respective mechanisms of China rapier loom. Disposal of warp yarns. The weft drawing-in mechanism features two rapiers and one weft pick feeder on one side of the loom. Disadvantages of Air-Jet Loom: The disadvantages of air-jet loom are-Broken pick or miss pick has occurred due to excess air pressure of main nozzle. Dec 25, 2016 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. The former is called a separated reed holder because the weft insertion mechanism and the beat-up mechanism are separated, while the latter is called a non-separable reed holder. It may be considered as the point where the warp and weft become cloth, because it is at this point where the last pick of weft, which was left by the shuttle, becomes beaten up. 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. Johann Gabler is regarded as the father of modern rapier. Compared to other standard looms, the rapier loom machine requires less power. Drive mechanism to reed and rapier provides minimum acceleration to the filling so that minimum filling breaks occur. The document summarizes the weft insertion system of an air jet loom. 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 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 filling is released after the rapier has exited the shed in the open shed position and under absolutely control conditions. Dobby mechanisms can be either bottom-mounted or top-mounted, typically accommodating 20 to 24 harness frames. The weft-insertion system with description of air jet loom mechanism with main parts. It consumes very low power. 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. 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 Warp let off mechanism Gap let-off of independent motor and speed reducer The let-off devices of the HTN8/S-190 and HTV8/S-220 rapier looms are driven by separate motors. com **College of Mechanical and Control Engineering, Guilin University of Technology, Guilin 541006, China, At the point 9 is what is known as the ‘Cloth fell’. Common shedding mechanisms include dobby or cam shedding. B. Here’s a technical overview of how it operates: 1. The picking causes the shuttle carrying weft to be propelled from one end of the loom to another. Higher picks per minute. Types of Loom machines Rapier Looms: These are shuttleless looms that use rapier grippers to carry the weft yarn across the shed (space between warp threads). Widespread Applications GA731 rapier loom can weave all kinds of natural fiber, rayon and synthetic filament. The picking mechanism on the loom carries the weft thread from one side of the shed to the. From the Power Loom's role in the industrial revolution to the precision of Sulzer Looms, the efficiency of Air Jet Looms, the adaptability of Rapier Looms, and the robustness of Gripper Looms, each type of loom brings its unique contributions to the art and Jan 1, 2012 · rapier, the filling is positively controlled and thus securely transferred. Rapier weaving machine that uses only one rapier head are called single 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. 3 Shedding Mechanism: Rapier looms employ shedding mechanisms to create an opening (shed) through which the weft can be inserted. from publication: Analysis of Tension Instability and Research on Stability Control Strategy in the Process of Rapier Loom Nov 13, 2023 · Rigid rapier; Flexible rapier; Fig: Rapier. Elevate your textile production with us today. Directly driven by the cutting-edge switched reluctance motor (SRM), our rapier loom not only uses 20% less energy than conventional ones under the same weaving conditions. Jan 1, 2012 · Single-phase shuttle-less looms such as rapier, projectile, air-jet and water-jet are considered to be the second generation of weaving machines in which the primary mechanisms of weaving (i. Apr 8, 2011 · Describes different types of weft insertion in a loom (shuttle, rapier, airjet, projectile and waterjets) Since founded in 1909, when shuttle looms were flagship for products and sales, TSUDAKOMA provided looms to weave technical fabrics, such as hoses and dust-collecting cloth used for incinerators. 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. Working Procedure Of Rapier Loom. This extensive article explores the evolution, technology, and applications of rapier looms in textile production. Electronic Jacquard Attachment: High-end rapier looms may have an electronic jacquard attachment for more complex and intricate fabric patterns. The tuck-in device used on other rapier looms differ from the one on the Thema loom in shape and dimension, but there are also 4 sets of cam mechanisms in the box, only different in the cam form. The slowest of the new machines could produce a yard of fabric in 4. 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 small shed opening angle. Rapier picking uses rapiers to carry the weft. One type of rapier loom consists of a rapier on one end. 5 inches; the air jet, 24 inches; and the water jet, 30 inches. Main Mechanism of Dornier Rigid Rapier Loom (2) Introduction of Jacquard Weaving Loom Machine The Difference between Rapier Loom Machine, Air-jet Loom and their Fabrics Nov 1, 2018 · The main distribution frame (MDF) is an important component between the user and the operator that supplies a telecommunication service and is the only layer in the seven-layer communication architecture that is not fully automated. 2_1 Rapll"r Looms Rapier looms form the largest group of shuttleless looms have about 10% share in the world's looms. The first subsystems is a discrete one, the second subsystem is a continuous one. The shedding mechanism is one of the primary motions of a loom. It is robust and easy to adjust and maintain. The most important out of them are production speed and maxi­ mum working width. The Indo Raptor Rapier Loom can produce fabrics where there is less fraying and the edge is quite smooth, almost giving it a polished look. Modern Rapier looms are more advanced in every aspect of production than conventional power looms. Jul 6, 2021 · A loom equipped with a jacquard shedding mechanism is called a jacquard loom. Jan 1, 2022 · This paper investigates the warp let-off and take-up mechanism of rapier looms to solve the problem that the warp tension of rapier looms fluctuates greatly and the warp let-off is difficult to 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. The loom is controlled by micro-computer and equipped with automatic warp stop device, automatic weft stop devices and semi-auto Make textile manufacturing easier and hassle-free by buying wholesale rapier loom mechanism. Rapier looms can 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. 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. Construction Figure shows a negative tappet shedding mechanism. It also helps to reduce the number of workers This versatility allows looms to be utilized in a wide range of applications, from producing everyday clothing materials to crafting intricate tapestries and carpets. Take Up Motion The take up motion is to draw a fabric to the cloth roller regularly and withdraws the cloth from the weaving area at a regular or constant rate so as to give the required pick-spacing (in picks/inch or picks/cm) and then winds it on to a cloth roller. Mar 31, 2015 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. The weft yarn is introduced into the shed to form the desired texture of the fabric. 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. After making successful replacements the production ratio of both Plain English loom and modified rapier loom are compared for result. 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 Jul 8, 2015 · However, fancy fabric is produced by using a rapier loom in the weaving sector. A similar principle is adopted in the developed mechanism except for the significant difference that, in this case, the protruding weft ends do not get permanently locked with the gripper ends due to the formation of any weave as with false selvedge, but are instead gripped temporarily till beat up is over. Compressed air is used to accelerate the yarn through the nozzles and insert it into the shed. Weft Insertion Mechanism. [ 1 ] A stationary package of yarn is used to supply the weft yarns in the rapier machine. Achieving pinpoint accuracy in configuring all aspects of the rapier loom’s mechanisms serves as the fundamental cornerstone for enhancing production efficiency. Unlike other shuttle loom machines, these rapier loom machines have improved speed and reduced noise while operation. 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 a shuttle. a. Works more smoothly. All the functions can be displayed by figures such as the functions of electronic shedding motion, electronic let off, electronic take up, electronic weft selection, automatic pick finding, failure Aug 11, 2021 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. Key Components of a Rapier Loom Machine. The operating cycle of the loom consists of three main steps: shedding, weft insertion, and beating-up. In contrast to shuttle looms, where a shuttle carrying the weft yarn, rapier looms use two rapiers skewers, flat and thin strips, that Jul 1, 1992 · This paper deals with the mathematical modelling of the picking mechanism of a rapier loom. It consists of two subsystems. Another object of the invention is the provision of a shuttleless loom having reciprocating rapiers for transferring the weft, wherein the rapiers do not move continuously, but remain in a fixed position just outside of the web for a portion of the weaving cycle when the beat-up action takes place and the weft pickup takes place, thus resulting in a shorter weft length with better control of Oct 1, 2024 · What is a Rapier Loom? The term rapier loom machine refers to one of the various kinds of weaving machines. Rigid rapier: Rigid rapier is rod like structure which will not change it’s own shape and this types of looms requires more space for foundation. Weft insertion is carried out by an assembly of a conjugate cam, flexible rapier band, and weft gripper. 1 Shedding Mechanism. At the 1995 Milan and 1999 Paris exhibitions, the latest high-tech rapier looms were presented to the world. nic. Below is the main structure and characteristics of rapier loom. ƒThe guides pass under the cloth fell when the sley approaches its most forward position. Jul 22, 2017 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. Nov 25, 2015 · This document discusses the rapier loom and rapier weaving. In addition, you should also pay attention when using the rapier loom: 1. Magnetic Timing Belt Aug 29, 2018 · In the Gabler system the weft is never gripped. Weft insertion process in #Rapier loom is expl Jun 3, 2016 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. The dynamic model approximately respects mass, flexibility and kinematic excitation of the mechanism. 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 head meet at the centre of the loom, the smaller left hand head , enters the yarn carrying right hand head. Single and Double rapier picking methods are detailed. To identify the different parts of this mechanism. The secondary motion comprises of take-up Apr 24, 2017 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. Some models are now operating Apr 4, 2015 · This document discusses the rapier loom and rapier weaving. In weaving department there may be different types of looms like plain power looms, automatic looms with shuttles, shuttle-less looms with different weft feeding mechanisms like projectile, rapier, air-jet, water-jet and so on. Dec 12, 2024 · Types of Rapier Weaving Machines. Air jet looms insert yarn using compressed air nozzles but cannot produce varied fabrics. from publication: A Condition Monitoring Strategy of Looms Based on DSmT Theory and Genetic Multiobjective Optimization A drive mechanism for a rapier (48, figure 4) and beat-up reed 24 comprises a linkage reciprocally driven by drive shaft 1. However, amidst the rhythmic clatter of looms and the gentle hum of machinery, challenges abound, threatening to disrupt the seamless flow of production. 3 minutes, and the fastest would take just 1. g. Oct 16, 2018 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. The interlacement of warp and wept yarns results in a material called fabric having tensile strength, flexibility and other essential properties. Nov 1, 2023 · The dynamic performance of the weft insertion mechanism of the rapier loom is the key to ensuring the reliability of the overall performance of the loom and the quality of the fabric. Rapier looms can Sep 4, 2013 · Any design more than 8 shafts require dobby loom. Let-off and take-up mechanism is synchronized with other mechanisms so that minimum start-up marks produced in fabric in large diameter of take-up roll[22-23]. A Jacquard shedding mechanism is used for 3D structures because the individual warp fibers are controlled independently by jacquard harness cords. The advantage of the rapier mechanism is the high precision that results in minimal influence on the edges of fabrics that helps to avoid further physical trimming to make stunning fabric clothes. It uses a rapier system, which is quicker, quieter, and more effective than the conventional shuttle mechanism. Rapier looms vary in types, but all use rapiers. False selvedge on the indigenous rapier loom (courtesy: Surya machinery, Mumbai). A 3D fabric can be woven on a 2D conventional rapier loom, but there is a fabric thickness limitation when using any conventional 2D loom. 关键词: 引纬机构, 行星轮系, 反求建模, 运动学仿真, 剑杆织机 Abstract: To improve the design flexibility and motion performance of the weft insertion mechanism in the rapier looms, a new type of eccentric circular and non-circular planetary gear train weft insertion mechanism was presented in this paper. It is most suitable for weaving such fabrics as wool fabric, linen, silk, cotton, chemical fiber, sunscreen fabric, jute, glass fiber, flat yarn, jacquard, and leno, involved in the fields of furnishings, upholstery, tourism, civil engineering, and industry. Mar 15, 2014 · This is the result of the filling insertion mechanism on a shuttleless rapier loom not holding and releasing the filling textile yarn too soon Dropped Stitch In weaving knits, where a stitch has not formed due to malfunction of a loom needle GA736 rapier weaving machine has absorbed all the features of GA788, and is especially suitable for weaving thick heavy fabrics. Aug 19, 2022 · 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. This paper investigates the warp let-off and take-up mechanism of rapier looms to solve the problem that the warp tension of rapier looms fluctuates greatly and the warp let-off is difficult to maintain constant. 2 Main Drive System. The rapier mechanism interweaves the weft and warp threads through its vertical movement, forming the fabric texture. Mar 2, 2020 · Compared to traditional Projectile loom, this mechanism omits the torsion shaft and its Transmission device, Hydraulic break mechanism, delivery mechanism, etc. Rapier weaving machines are known for their reliability and performance. - Textiles Committee While in the traditional loom a shuttle is used to insert the weft yarns, in modern high speed machines a variety of insertion mechanisms are used, in particular, air-jet, water-jet, rapier and projectile insertion systems. The rapier loom’s rapier transfer mechanism is either fixedly mounted on the frame or fixedly mounted on the reed holder. Mar 9, 2025 · Rapier looms have revolutionized modern weaving with their innovative mechanisms and energy-efficient operation. Dynamic Looms is renowned for the versatile weaving machines which are able to weave creative fabrics as well as technical fabrics too. This loom usually has either one or two rapiers. The mechanism that introduces the weft into the shed. In Jacquard looms, each warp yarn is in an individual heald. It is normally set slightly up and slightly towards the front of the loom and its inner end. Paramount’s RAPTOR 786 rapier loom represents fine appearance, heavy duty structure, advanced mechanical & electronic control system and convenient operation. Rapier looms can Jan 22, 2017 · Rapier Loom A rapier loom uses a rapier to pull the weft yarn across the loom. Given the motion stability and motion accuracy of the spatial four-bar weft insertion mechanism, the author carried out the optimization design from two aspects: This rapier loom adopts PLC control which means that it can realize program operation via the 10. One type has a single long rapier that reaches across the loom’s width to carry the filling to the other side. Secondly, the sley of the high-speed rapier loom is made of aluminum alloy, which is very light in weight. The core structure of the high-speed rapier loom mainly includes the rapier mechanism, yarn supply system, warp supply system, and control system. Mar 29, 2024 · The location of the sword transfer mechanism. 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 Aug 31, 2021 · A distinctive feature of most rapier looms is that the weft'is attached to the insertion element, the rapier in this case, at a point near the entrance to the shed, rather than at the point from which it begins its motion - as on the Sulzer for example, or permanently -as on the shuttle loom (this enables multicolor weft devices to be Jul 6, 2021 · Secondary Motions of Loom: There are two types of secondary motion of loom. There have been substantial developments in both rigid and flexible rapiers over the la<;t few years. Knowing the primary Main Mechanism of Dornier Rigid Rapier Loom (1) Main Mechanism of Dornier Rigid Rapier Loom (2) Introduction of Jacquard Weaving Loom Machine May 19, 2016 · Projectile looms use small gripper bullets to carry the weft yarn across, but dragging the yarn can strain weak yarns. A pair of tappets A and B is fixed to the bottom shaft C at 180 degrees to each other. , 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 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. Less power required. According to the special requirements to loom’s weft insertion mechanism for weaving three-dimensional fabric, a new rapier weft-insertion system was designed. 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. Two treadle levers D and E are connected to the loom back-rail by a bracket F. Standard rapier width stands at 190 cm in the case of rapier looms. On a shuttle loom, the weft is hit by the shuttle mechanism to make the shuttle fly into the shed. Rapier weaving is shuttle- less weft insertion system. For example, GTM machine tuck-in uses a grooved cam, SM93 machine tuck-in uses a cylindrical cam, and FAST machine tuck-in uses a disc-shaped radial cam. It can be a single rapier or double rapier. The task is otherwise, presently performed by the formation of dummy or false selvedges in the fabric, requiring 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. The linkage includes first 20 and second (40) reciprocally driven outputs. Noisier, compared to jet and rapier loom. Jul 22, 2017 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. Rapier Picking. 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. They offer high Model NO. It begins by defining a rapier loom as one that uses a rapier to pull the weft yarn across the loom. The design and hardware implementation of a let-off and take-up control system based on fuzzy neural network (FNN) and vector control (VC) are presented to improve the control level Oct 28, 2016 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. For a single rapier, a long rapier device is required to extend across the full width of warp. Feb 14, 2012 · To know the over picking mechanism. Rapier looms use rapiers, either single long rapiers or double rapiers that transfer the yarn between two rapiers. : TT-828 Type: Rapier Loom Voltage: 380V Computerized: Computerized Precision: High Precision Certification: CE, ISO9001: 2000 Apr 22, 2014 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. Mechanism The weft, which is under constant proper control, remains connected to the cloth as a consequence of the previous insertion (or it remains blocked under the Apr 27, 2016 · The document discusses different types of looms and their weft insertion mechanisms, including projectile looms, rapier looms, air jet looms, and multiphase looms. , shedding, picking, and beat-up) take place in one loom cycle, thereby inserting one pick in a single phase. In the current project we introduce a prototype of servo-motor-controlled filling yarn presenter as well as a hypothesis has been shown in order to maximizing the number of filling yarn Servo-controlled Weft Yarn Inserting Mechanism for Rapier Loom Kazuo Washida*,Hidehiko Sugimoto**,Atuji Masuda* Abstract For a rapier designed to control the yarn inserting motion from the start of the motion to its end , a Feb 14, 2023 · 9. 2 . 12. Download scientific diagram | Mechanical structure diagram of rapier loom. 11. The healds are not in harnesses but can move independently under the control of the Jacquard mechanism. Rapier weaving machines are of two types. Dec 12, 2015 · A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. The shedding mechanism includes negative dobby, positive dobby, cam (treadle) shedding mechanisms, and jacquard shedding mechanisms. low spare parts requirement. Jan 4, 2012 · In case of air jet loom, noise level is lower than rapier loom and missile. Weft insertion agency. Since 1972, the rapier weaving machine… The rapier mechanism gently carries the weft yarn across the warp without subjecting it to the harsh mechanical forces associated with shuttle looms. We have created a benchmark in the textile industrial segment and have been offering a wide range of weaving machines as Rapier Looms, Electronic Jacquards (Jumbo Jacquard also), Shuttle Looms, Tuck-in Device and Special Purpose Machine (SPM) for weaving of Weft insertion mechanism or picking is one of the five primary mechanisms of the rapier loom. 4 inch display screen and the operation is easy. They are: Take-up motion; Let-off motion; A. Quickstep mechanism is used in multicolored weft insertion. Why does high-speed rapier looms use a conjugate cam beating-up mechanism? Firstly, high-speed rapier loom adopts a separate sley to ensure that the sley has a long static time in the rear center during the weft insertion process. Hence Jacquard looms can make a great variety of patterns. Mr. ƒRibbed guides lie between warp ends when the shed is open. The air must be properly filtered to remove moisture, dust, and oil to prevent A distinctive feature of most rapier looms is that the weft'is attached to the insertion element, the rapier in this case, at a point near the entrance to the shed, rather than at the point from Sep 29, 2013 · Over picking mechanism is used on cotton and jute loom. It then describes the key components and functioning of single and double rigid and flexible rapier systems. There are two types of rapier looms. These two rapiers are called the weft-feeding sword and the weft-receiving sword, respectively. The Terry Towel Rapier Loom is used in textile industries for weaving different kinds of towel fabrics using cotton thread. We still provide looms for technical fabrics even now, when jet looms are a leading product after the time of rapier looms. , Rigid, Gabler, Flexible, and Dewas). Önder & Ö. The spindle is situated over the shuttle box and is essential to guide the shuttle along the correct path. The picking mechanism is divided into three types: top pick, middle pick and bottom pick. download brief description of air jet loom(pdf) http://textilescommittee. Jun 4, 2011 · For making delicate cotton fabric, the conventional picking mechanism is still used with air-jet, rapier and projectile picking mechanism. For a double rapier loom, two rapiers enter the shed from opposite sides of the loom and transfer the weft from one rapier head Jan 15, 2025 · From simple weaves to intricate and ornamental designs, these machines can create a vast array of textiles. Skilled personnel needed for initial setup. Also reduces the impact and vibration of the whole mechanism, Simplified mechanical structure and improve the projectile loom’s reliability. It can use a single or double rapier system. Reliability and minimum maintenance. ddwz icma etasjki taw xgmz lxtplb ndpxn gunnw mjuij ojtyi cacfho hvt cze nozbtfg dvbxmo