阅读说明：本技术 磁悬浮织机 (Magnetic suspension loom ) 是由 宣火明 于 2021-08-11 设计创作，主要内容包括：本发明属于纺织机械相关领域,其公开了一种适用于经纬织造的机械系统。其包括磁悬浮轨道、单向循环挟纱引纬器、引纬行程传感器、智能控制PLC系统。此磁悬浮织机采用整体式机械结构,通过金属框架及机械运动部件和管道线路把多种具有独立功能的智能化控制机械设备相互接合的一种经纬织造的纺织机械。(The invention belongs to the field related to textile machinery and discloses a mechanical system suitable for warp and weft weaving. The device comprises a magnetic suspension track, a unidirectional circulation yarn-clamping weft insertion device, a weft insertion stroke sensor and an intelligent control PLC system. The magnetic suspension loom adopts an integral mechanical structure, and a warp and weft weaving textile machine which mutually joints various intelligent control mechanical devices with independent functions through a metal frame, a mechanical motion part and a pipeline circuit.)

1. The magnetic suspension loom is weaving equipment for warp and weft weaving of a textile machine, and is characterized by comprising a magnetic suspension track, a unidirectional circulating yarn-clamping weft insertion device, a weft insertion stroke sensor and an intelligent control PLC computer system.

2. The magnetic levitation track as claimed in claim 1, wherein the detachable ring-shaped magnetic levitation weft insertion track is provided.

3. The unidirectional circulation yarn-clamping weft insertion device according to claim 1, characterized in that the force reverser is adopted to complete clamping of a whole weft to accurate release.

Technical Field

The invention belongs to the field related to weaving equipment in a weaving process in the textile industry, and particularly relates to a magnetic suspension weft insertion control system suitable for the weaving process.

Background

Ideal life and work need lower carbon, environmental protection and high-efficiency industrial equipment. The textile industry is the national civilian industry and the export-earning right industry. There is a very important equipment "loom" in the textile industry. Much of the innovation in the textile industry has also begun with the innovation in weaving machines. Looms have increased efficiency by a thousand hundred times from hand looms to today's shuttleless looms. The looms used in large area in the market at present are mainly of two types, namely air jet type and rapier type, in the shuttleless looms. Air jet looms are shuttleless looms that use a jet of air to pull the weft yarn through the shed. The principle of the operation is that air is used as weft insertion medium to eject compressed airflow to generate friction traction force on the yarn to draw the weft yarn through the shed. The weft insertion is achieved by the jet generated by the air jet. In a shuttleless loom, air jet is the one with the highest vehicle speed. Because the weft insertion mode is reasonable, the weft insertion rate is high, the operation is simple, convenient and safe, and the weft insertion device has the advantages of wide variety adaptability, less material consumption, high efficiency and the like. However, the air jet loom adopts an air flow weft insertion mode, and the greatest defect is high energy consumption. The rapier loom is the most widely used shuttleless loom at present and is also the main loom of woven fabrics at present. The rapier loom is divided into a rigid rapier and a flexible rapier. The greatest advantage of the rigid rapier is that no guiding device is required for positively transferring the weft thread to the centre of the fell. The prior rigid rapier has the defect that the weaving width is limited. The flexible rapier has strong adaptability and wider application range due to the positive weft insertion mode, and is a loom with the highest occupancy rate of the existing shuttleless loom. Flexible rapier development and application over the last hundred years has now created a number of technical bottlenecks. Such as the speed of the loom or the weft insertion length. At present, the experimental speed of the rapier loom can be up to 800/min or the weft insertion length is 2000/min. Reaching such a speed in actual production would allow the consumption of machine material to be prohibitively large. The main reason is that the loom weft insertion mechanism needs to take over the mechanical kinetic energy caused by inertia. The mechanical kinetic energy increases exponentially with increasing speed. In addition, the noise generated by the rapier weft insertion mechanism during the high-speed movement is also unacceptable. The rapier loom weft insertion mechanism is the most complex mechanical structure in the whole loom, is a single mechanical component with the largest energy consumption ratio of the whole loom, and is a group with the highest cost of the single mechanical component.

The maintenance problem is that the mechanical parts of the rapier loom are seriously abraded due to the characteristics of the weft insertion mechanism structure and long-time compound mechanical friction motion. The method aims at the bottleneck problem that the energy consumption, the technology, the material process and the like of the existing air jet and rapier looms cannot be broken. The invention has original technical innovation, and adopts a magnetic suspension weft insertion system, namely a loom magnetic suspension loom.

Disclosure of Invention

The magnetic suspension weft insertion system mainly comprises innovative components such as a magnetic suspension weft insertion track, a unidirectional circulating yarn-clamping weft insertion device, a weft insertion stroke sensor and the like. The magnetic suspension weft insertion track mainly utilizes an electromagnetic coil to generate a suspension magnetic field and utilizes a linear motor to generate a traveling wave magnetic field. When the electromagnetic coil is electrified to generate a suspension magnetic field, the linear motor is electrified to generate a line field magnetic field to push the suspension and unidirectional circulation yarn clamping and weft insertion device on the track to complete unidirectional winding type circulation weft insertion work. The unidirectional yarn-holding weft insertion device mainly utilizes a suspension magnetic field and a traveling wave magnetic field to simultaneously do work to push the unidirectional yarn-holding weft insertion device to hold yarns to do unidirectional winding weft insertion work in a specified suspension track hook. The weft insertion stroke sensor has the main functions of real-time position monitoring when the traveling wave magnetic field does work to push the unidirectional yarn holding weft insertion device to insert weft and sending a real-time position report to a loom computer or a loom PLC (programmable logic controller) so as to be beneficial to a loom terminal to make a next correct instruction.

Drawings

Fig. 1 is a schematic structural diagram of a magnetic suspension loom.

Fig. 2 a schematic diagram of a magnetic suspension weft insertion track.

FIG. 3 is a structural view of a unidirectional circulation yarn-clamping weft insertion device.

FIG. 4 weft insertion stroke sensor position diagram.

FIG. 5 weft insertion stroke sensor stroke report schematic.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. According to fig. 1 and 5, the magnetic suspension loom of the invention is illustrated to complete the weft insertion and weaving work of fabric threads by means of magnetic suspension and the driving of a linear motor. The core of the magnetic suspension loom is a magnetic suspension weft insertion system. The implementation mode of the magnetic suspension weft insertion system is to complete the process of introducing the fabric weft into the cloth fell through a suspension magnetic field and a traveling wave magnetic field which are arranged on the annular framework of the magnetic suspension weft insertion track. A core system of the magnetic suspension loom is a magnetic suspension weft insertion track, wherein the weft insertion track is formed by synchronously mounting a detachable annular framework around two sides of a beating-up shaft of the loom and a reed mounting position of the beating-up shaft. The magnetic suspension weft insertion track is divided into two sections, wherein one section is fixedly arranged on two sides of a beating-up shaft of the weaving machine. One section is arranged at the reed installation position of the beating-up shaft and is synchronous with the reed to do beating-up motion. When the unidirectional circulating yarn-holding weft insertion device circularly moves to the beating-up shaft section, the two sections of magnetic suspension tracks are exactly positioned at the same straight line position. At the moment, the unidirectional circulation yarn-clamping weft insertion device completes the transitional weft insertion movement at the joint of the two sections of magnetic suspension tracks. The beating-up synchronous section magnetic suspension track mainly depends on the beating-up cam curve static section to complete the seamless transition of the dynamic and static sides of the magnetic suspension track. The core important component of the magnetic suspension loom is a unidirectional circulation yarn-clamping weft insertion device. The unidirectional circulation yarn clamping weft insertion device mainly comprises a permanent magnet suspension motion bottom plate, a guide yarn clamping rod, a release lever, a fulcrum, a force reverser, a yarn clamping rod bottom plate, a spring, a yarn searching cover and the like. The important work of the weaving machine is to introduce weft yarns into a weaving opening to complete weaving. The main function of the weft insertion stroke sensor of the magnetic suspension loom is to track the position of the unidirectional circulating yarn clamping and weft insertion device in real time and simultaneously send a position report to a loom computer or a loom PLC (programmable logic controller) so as to facilitate the loom terminal and the PLC to issue other instructions. The magnetic suspension loom core system magnetic suspension weft insertion mechanism has the integral operation scene that when the loom starts to operate from zero degree or an original point, the magnetic suspension weft insertion system unidirectionally and circularly carries out yarn clamping and weft insertion and synchronously starts to move towards the direction of the weft of the loom from the position of a weft insertion stroke original point sensor. After the running angle of the loom reaches the point that the color selecting mechanism synchronously matched with the loom completely runs, the unidirectional circulation yarn holding and weft inserting device of the magnetic suspension weft inserting system synchronously reaches the optimal position for weft feeding. The loom drives the running main machine motor to continue to advance, and the magnetic suspension weft insertion system one-way circulating yarn clamping weft insertion device clamps weft yarns to continue to advance along the annular magnetic suspension track. When the loom beating-up mechanism runs to the magnetic suspension dynamic track and the static track are overlapped, the magnetic suspension unidirectional circulating yarn clamping and weft inserting device smoothly transits from the static track to the dynamic track, and meanwhile, the weft insertion stroke sensor reports the real-time position report of the unidirectional circulating yarn clamping and weft inserting device to a loom PLC or a loom terminal computer, so that the loom fault reed damages the magnetic suspension track and the unidirectional circulating yarn clamping and weft inserting mechanism on the track. After the magnetic suspension unidirectional circulation yarn clamping and weft inserting device enters the dynamic track, a yarn clamping and weft inserting device position report is reported every 30 degrees by a weft inserting stroke sensor before the angle of the weaving machine is 180 degrees. After the angle of the weaving machine enters 180 degrees, the position reporting frequency of the magnetic suspension unidirectional circulating yarn clamping weft insertion device is increased, the position reporting angle is set to be 210 degrees for reporting once, 230 degrees for reporting once, 240 degrees for reporting once, 248 degrees for reporting once, 255 degrees for reporting once and 260 degrees for reporting once, and the magnetic suspension unidirectional circulating yarn clamping weft insertion device must enter a static track before a dynamic track is staggered with the static track. Along with the change of the beating-up angle of the weaving machine, the position report of the weft insertion stroke sensor to the yarn clamping weft insertion device becomes more and more frequent, so that the magnetic suspension track or the weft insertion device is prevented from being damaged by beating-up of a beating-up mechanism due to the fault. The magnetic suspension weft insertion stroke sensor tracks the position of the yarn clamping device in real time and reports the position to the PLC or the terminal computer in real time, and the PLC or the terminal computer is favorable for issuing correct instructions to the normal operation of the magnetic suspension loom in time. The magnetic suspension weft insertion mechanism of the magnetic suspension loom finishes the latitudinal traction of the yarn on a magnetic suspension track through the traction of a unidirectional circulating yarn clamping weft insertion device so as to achieve the purpose of weaving the warp and the weft. And after the unidirectional circulation weft insertion device leaves the dynamic track, the clamped weft yarns are timely and correctly released and continue to advance to the direction of the original point stroke sensor along the track, and meanwhile, the beating-up mechanism of the loom and the angle of the loom also move to the set original point, so that the integral synchronization can achieve complete weaving. The rapier loom has the advantages that the energy consumption and the weft insertion system of the rapier loom at present approximately account for 1/3 of the energy consumption of the whole loom. The energy consumption of the weft insertion system of the air jet loom is about 1/2 of that of the whole loom. The weight of the unidirectional circulation yarn clamping weft insertion device in the magnetic suspension weft insertion system of the magnetic suspension loom is about 200 g. The linear wave-attracting magnetism of the magnetic suspension unidirectional circulation yarn-holding weft insertion device in a suspension state can complete the weft insertion work of the magnetic suspension loom with only small energy consumption. Compared with the bear consumption of hundreds of kilowatts required by the weft insertion motion energy consumption of a rapier loom and an air jet loom, the weft insertion energy consumption of the magnetic suspension loom is much more energy-saving. The product has the adaptability that the magnetic suspension loom adopts a very flexible coil winding and a unidirectional circulation yarn-clamping weft insertion device with very excellent performance as a core component. The length of the coil winding can be flexibly increased or decreased, and the unidirectional circulation yarn-clamping weft insertion device can meet the requirements of all fabric width and weft insertion requirements of different raw material attributes of most fabrics according to the length of the coil winding and the curved arc length of the knotting cam. The material consumption and maintenance technology of the magnetic suspension loom require that the weft insertion system of the magnetic suspension loom completes weft insertion movement in a suspension state under the condition of almost zero friction force. The parts of the common loom with the largest material consumption become the parts without consumption. The weft insertion driving force of the magnetic suspension loom is from a suspension coil and a travelling wave magnetic field, and the quality and the service life of a coil winding are excellent under the current technical conditions. The core component unidirectional circulation yarn-clamping weft insertion device of the magnetic suspension loom has a very simple structure, is very easy to maintain, and really achieves the purpose of low energy consumption, low noise and high efficiency.