REPOSAL ® winding machine has successfully realized the coil preparation process of the frameless capillary magnetic liquid acceleration sensor

REPOSAL® numerical control honeycomb winding machine, specially designed for honeycomb inductor coil, honeycomb coil with its small size, small distribution capacitance, and large inductance in some special occasions has irreplaceable. All of these excellent properties are due to the unique structure of the honeycomb coil,

Traditional honeycomb winding machine is to rely on a set of complex gear system to achieve the function, if you need to wind different honeycomb coils, need to manufacture and replace different gears, quite cumbersome and very low efficiency, REPOSAL® CNC honeycomb winding machine uses high-precision control system, with specific algorithms, high precision, fast speed, through different Settings can be wound different widths, different fold points, Different number of turns of honeycomb coil, let you wind honeycomb coil handy.

The inductance of the honeycomb coil is large, mainly because of its special structure. After it is wound, from the appearance, it is like a honeycomb, formed by the regular winding of coils to form a honeycomb, in this one honeycomb, the magnetic flux of each honeycomb is interconnected, and the magnetic flux density of these small magnets changes with the change of time and position, just like the food in a honeycomb. This distribution of magnetic flux pores makes the inductance of the honeycomb coil larger, because it has more magnet interaction, thus forming more magnetic flux, improving the permeability of the current, making the inductance increase.

At the same time, since the magnetic flux of each small magnet in the honeycomb coil is interconnected, the inductance can be increased by increasing the size of the honeycomb. The larger inductance of the honeycomb coil is due to its shape and the distribution of magnetic flux pores, rather than due to the increase in resistance.

The insulated wire wrapped around the honeycomb coil can be a single strand of enameled wire, or can be multiple strands of enameled wire or silk-covered wire.

People are usually curious about how this kind of coil is wound out, and the following is a demonstration of the CNC honeycomb coil winding machine developed by our company.

               REPOSAL®successfully releases hot micro flowmeter winding machine 

                                           ----------solve the problem of heat pipe coil winding process

       Flowmeter is one of the commonly used instruments in industrial production, the most common such as all kinds of water meters in life, gear water meters, electromagnetic water meters, ultrasonic water meters, etc., according to the different industry applications, chemical, petroleum, pharmaceutical, food and other industries are also widely used, can measure the volume or quality of various fluids through the pipeline in a given time. Easy to measure in each fluid automation control.

          However, in medical, aerospace, military and other fields, we may need to measure tiny fluid flows, and in microfluidic processes, micro-thermal flow meters are also necessary, which can measure very small fluid flows, thereby helping researchers control the flow of fluid in microfluidic devices and optimize device performance.

         Another example is the flow control of pure oxygen fluid in the ventilator, the flow control of the medical dosage ratio, the flow equivalent is very small, and at the same time, it requires extremely high measurement accuracy, so the thermal micro-flow meter should appear according to demand.

          The thermal micro flowmeter is mainly made of the principle of capillary heat compensation. In the thermal micrometer, the fluid passes through a small pipe, and on the outer wall of the pipe, the thermal micrometer winding machine is used to wind a very small electric heating coil, which usually uses a fine platinum resistance wire, with a diameter between 0.02 and 0.05mm. When the fluid flows through the platinum resistance heating coil, the temperature of the fluid increases slightly. At this time, another set of platinum resistance coils wound by the thermal micro-flowmeter winding machine can sense a higher resistance, and the controller converts this resistance value into a flow value.

          The diameter of the platinum resistance coil in the micrometer is very small, and the texture is fragile, and it will heat up after being energized. When the fluid passes through the capillary of the flowmeter, the flow will take away the heat of the platinum resistance coil wound by the hot micro-flowmeter winding machine, resulting in a decrease in the temperature of the platinum resistance coil. In order to keep the temperature of the platinum resistance coil stable, the micro flowmeter will provide a certain current according to the measurement needs to maintain the temperature of the hot wire at a constant operating temperature. By measuring the change in current provided to the hot wire, the mass flow rate of the fluid can be obtained.

             Thermal micro flowmeter has many advantages, the main advantage is high accuracy, can measure the flow range of small small fluid, the accuracy can usually be within 1%. Moreover, it is small in size and can be easily designed into module units for convenient arrangement. It can also directly output electrical signals, and the communication with the data collector is convenient.

However, its manufacturing difficulty is high, especially the platinum resistance heating coil, the need for hot micro-flowmeter winding machine, in a very small diameter capillary wound diameter 0.02-0.05 platinum wire, the small diameter of the platinum wire itself is more fragile, the capillary also needs to overcome the radial displacement caused by the tension of the platinum wire during the winding process, and requires orderly arrangement. The tension is stable and the resistance is consistent, so the process is extremely difficult, and the current micro-precision winding technology of this hot micro flowmeter winding machine has been supported by sensor companies in Japan, the Netherlands and Germany for a long time.

           The domestic precision winding mechanism manufacturing system from low-end to high-end, there are huge challenges, because there are shortcomings in the manufacturing equipment link, not only the problem of individual equipment such as hot micro flow meter winding machine, but the entire precision winding machine industry is lack of independent development conditions, the industry is keen to imitate foreign industry technology for a long time, and the user long-term superstition imported equipment, It is also one of the conditions for domestic winding machine enterprises to lack independent development, so the cost of domestic thermal micro-flow meters has been high.

           Guidance communication has an excellent application prospect, but the guided fiber wire package needs to be wound long distance without defects, but because the surface of the fiber is smooth, brittle and easy to break, as well as the residual stress generated by the micro bending will make the signal attenuation, so it is more difficult to wind than other fibers, making long distance fast fiber automatic winding without defects has become a major issue. REPOSAL® winding machine, as a professional winding process solution provider, has been developing process research on precision winding of guided fiber wire packages for many years. Good progress has been made and REPOSAL® special winding machine for guidance fiber wire wrap developed by the winding machine can set reliable process instruction information according to process requirements and accurately execute control commands to finally finish the long distance guidance fiber wire wrap without defects. In the whole research project, we focus on solving three problems of guidance fiber optic wire wrapping system: tension control. Winding system, feeder system, and expand as follows.

With the development of our society and the progress of science and technology, the demand for high frequency and high voltage special power supplies in all walks of life is increasing day by day. The main core process in the production and manufacturing of high frequency and high voltage power supplies is the winding of interlayer insulated high voltage pack coil, and the technical level of interlayer insulated high voltage pack coil winding depends on the technical level of coil winding machine. But at present, the domestic high pressure coil winding machine has a low degree of automation, poor processing quality and production efficiency, and can not realize the automatic arrangement of enameled wire and insulated tape. In addition, the tension control technology of the wire is backward, the acceleration of the transmission speed, the change of the radius and the radial runout and axial movement of the winding spindle during the winding process will lead to the sudden change of the tension force of the wire, resulting in the turn to turn row of the interlayer insulated high voltage pack coil deviating from the ideal value, and the low quality of the wound interlayer insulated high voltage pack coil. In this context, the company began to develop high pressure coil winding machine and enameled-wire tension control system, the main research content is as follows:

Firstly, the process of layer wound high pressure packet winding machine is analyzed, the mechanical structure of layer wound high pressure packet winding machine is determined, and the related concepts of tension control of enameled wire are introduced. Secondly, an automatic wiring control system is designed, and the influence of the lagging Angle on the quality of the interlayer insulated high pressure pack coil is studied, and the trajectory of the wiring is analyzed. In view of the high requirement of motor control algorithm in the process of enameled wire winding, the multi-motor cooperative control is analyzed, and the parameters are selected by MATLAB simulation and optimization according to the actual requirements of the project, and the multi-motor cooperative control scheme of the multi-motor of the multi-motor coiler is designed. Then, taking the insulation layer rewinding system of the high pressure packet winding machine as the research object, the mechanical model of the system is analyzed dynamically.

             Your factory is using a traditional winding machine, your wire machine structure is reasonable, high mechanical accuracy, the motor is also used a big brand of motor, but in the winding of precision coils, there will be a high defect rate, you carefully analyze before improving various factors - equipment structure, processing accuracy, tooling accuracy, skeleton accuracy, enamel wire quality, tension control, etc. But it still doesn't solve the problem. But to tell you that it's not just a hardware problem, but an algorithm problem, may surprise you. Because in your opinion, every time the spool is transferred, the spool has a corresponding response, but in fact, you may not have considered that in the winding process of the precision coil, the wire guide pin is connected at both ends of the coil, and the sudden change in speed may cause the coil to cross the line and be raised. These defects can degrade the performance of the coil.

            To solve this problem, we propose an acceleration and deceleration method based on 5-segment S-curve. The algorithm uses linear acceleration or deceleration at the end and end of the line motion control to help reduce coil defects. We first verify the feasibility of the algorithm by using ADAMS software. The software simulates the motion of the precision winding coil and obtains the velocity curve and displacement curve during the motion. Later, the experimental results show that the method of adopting S-curve in the alignment speed control can reduce the coil defect by up to 50%. This shows that the 5-section S-curve motion control algorithm is a promising method to improve the precision and efficiency of the winding process of electric precision coils. By using this algorithm, coil manufacturers can reduce the risk of coil defects and improve coil performance.

            Winding machine is a special production equipment for precision winding coils. They can be divided into stator winding machine, flying fork winding machine, ring winding machine and flat winding machine according to the working mode and object. Different types of equipment are suitable for the production of different objects. For example, the stator winding machine is mainly used to produce motor stator coils, while the parallel winding machine is used to produce electromagnetic switching coils.

            Ordinary algorithm of parallel winding machine in the production of precision winding coil products, although our mechanical structure, parts processing accuracy has been done very well, but often there is a problem of low wiring accuracy. In the process of winding a line coil, there are two main movements, one is the rotating movement of the skeleton, which is called winding movement, and the other is the translation movement of the guide needle, which is called wiring movement, and wiring transport is matched with winding movement. After years of technical accumulation, we analyze that the leading role in the alignment accuracy is the alignment movement of the guide needle. Therefore, if you want to improve the alignment accuracy of the coil, you need to optimize the alignment movement of the guide pin.

            In fact, we have always believed that the winding machine is equivalent to the lathe in the electrical industry, its importance is self-evident, so for its accuracy, there have been many experts and scholars to study this.

            Some people studied the mathematical model of precise alignment based on axial pressure compensation around the axis in the process of alignment. The axial pressure was used to improve the alignment regularity of the coil, and the mathematical model was established according to the analysis of the end point of the coil alignment, which improved the alignment accuracy of the coil.

            Some people use the 5-section S-curve control algorithm and the 7-section S-curve control algorithm respectively in the research. In motion control, the 7-section S-curve is more complicated than the 5-section S-curve control. This method has achieved more results in the field of CNC machining, but it is not mature in the field of winding machine.

            The tension instability caused by the friction between the enamelled wire and the conductor nozzle during coil winding has been studied, which leads to the uneven wiring of the coil and the breakage of the enamelled wire.

            Some people have studied the low efficiency of the winding machine in the traditional winding control because of the inertia error in the process of the winding machine. Instead, the servo motion wiring and the inertia error supplement are used to improve the control efficiency of the winding machine.

            PLC control is commonly used in the winding machine wiring control system, through PLC control servo motor can realize the winding machine wiring control, both PLC control stability and high precision servo motor advantages. However, there is a sudden impact of guide pin speed in the coil alignment of parallel winding machine, so it is necessary to further optimize the change of guide pin running speed to improve product quality and the smoothness of wire alignment speed. The S-curve algorithm is a kind of smooth transition of speed in the process of motion, which is often used in machining to solve the problem of breaking the tool caused by speed impact and improve the precision of machining products. In the winding machine, the speed of the guide needle can be changed into an arc smooth transition by controlling the movement track of the guide needle, improving the alignment accuracy and product quality.

            To sum up, an algorithm based on 5-segment S-curve motion control is proposed to solve the problem of velocity shock in the process of coil alignment by analyzing the law of coil alignment. ADAMS software is used to simulate the trajectory of the guide pin to verify the feasibility of the algorithm. And the application of the example proves that the 5-section S-shaped curve can effectively solve the phenomenon of crossing and protruding in the process of winding, and improve the precision of winding.

            Coil wiring principle

            The winding method is flat winding, that is, the enameled wire moves synchronously with the guide pin and always keeps perpendicular to the skeleton during winding. The frame is driven by the winding motor with the guide needle movement, the enameled wire is wound on the skeleton, in which the guide needle is located in the wiring arrangement mechanism and the winding mechanism are two independent mechanisms. The winding mechanism is divided into three stages according to the motion process of the guide pin, namely acceleration and deceleration stage, uniform speed stage and end point return stage. The acceleration and deceleration stage can be divided into two parts: acceleration stage and deceleration stage. In the early stage of the alignment movement, the guide pin speed from zero to uniform speed belongs to the acceleration stage. At the end of the alignment movement, the process of decelerating until the speed reaches zero is a deceleration stage. The middle constant velocity stage is the constant velocity motion stage of the guiding needle. The terminal reentry stage is a process in which the guide needle accelerates backward again after slowing down and stopping. Here we explain:

            Acceleration and deceleration stage

            In order to arrange the lines evenly, the two movements of guide pin movement and skeleton rotation should meet certain coordination relations during acceleration and deceleration stage. The time for the guide needle to move one diametral width distance must be equal to the time for the skeleton to rotate once, that is, the guide needle to move just one diametral distance when the skeleton rotates once.

In the manufacture of power transformers, winding the transformer coil is a super important step, you think, the transformer coil is wound more firmly and neatly, the strength of the transformer and the ability to protect against short circuits can be greatly improved. However, most of the current transformer winding machines have to rely on manual extra sorting of the coil, the entire equipment is low in automation, and the production efficiency is not high, so the development of an excellent large transformer winding machine is a crucial thing for our company.

We have studied the main shaft technology of transformer winding machine, the relationship between compaction force and winding quality, and the control of compaction force. According to the principle and process flow of transformer winding, we put forward a whole design scheme of large transformer winding machine, including mechanical structure and electrical control. Mechanically, we simplify the complex structure of traditional transformer winders. In terms of electrical control, we ensure the stability of the motor when it starts and stops, and ensure that the winding coil is evenly tightened during the winding process. For the core parts of the transformer winding machine, spindle system and pressing device, we have calculated and selected the types and parameters. With the compaction device, we are able to provide real-time axial and radial compaction forces during the winding process of the transformer winding, which is very effective for improving the tightness of the winding.

The static analysis of the radial compaction device of the winding machine is also carried out by using finite element method, and the structure optimization is carried out according to the analysis results. We find that as the number of layers and turns of the winding increases, the required axial and radial compression forces change accordingly. By analyzing the experimental data, we find that there is a maximum value and a minimum value in the range of quality requirements, and it is the most reasonable choice to make the compression force approximately proportional to the number of layers and the number of turns.

The large transformer winding machine developed by our company has been preliminatively debugged and put into the market. After testing, the performance parameters of this transformer winding machine are in line with the design requirements, and the operation is stable and efficient. It can be wound to make a tight and regular transformer winding coil, and has been fully recognized by the market.

As a power grid equipment, power transformer converts voltage through the electromagnetic induction between the winding coils of the transformer. With the continuous development of the market, higher requirements are put forward for the manufacturing level of transformers, and the market needs more energy-saving and efficient transformers. Therefore, the optimization of the transformer manufacturing process is particularly critical. Quality and performance depend on the process equipment. The technical level of the transformer winding machine directly reflects the manufacturing level of the transformer. Therefore, accelerating the development of transformer winding machine is an important guarantee to improve the performance of transformer.

The winding coil of the transformer is the core component of the transformer and constitutes the electromagnetic induction part of the transformer. It generally includes high voltage winding and low voltage winding, respectively connected to the high voltage grid and low voltage grid. The winding of large power transformers usually adopts concentric winding, that is, the high and low voltage transformer winding coils are centrally set on the core column. The manufacture of transformer winding is the core process of transformer, and its quality plays a crucial role in the performance of transformer, affecting the appearance of transformer size, weight, mechanical properties, insulation and heat resistance and other important indicators.

In the past, the production of transformer winding coils relied on manual, and workers had to wind insulated wires manually to the winding die frame in accordance with the process requirements. Turns calculation also have to rely on manual, this old-fashioned method is inefficient, and because the worker's skills are not strong enough, the quality of the winding coil is poor, the number of turns may be miscalculated or missed, and ultimately lead to the finished winding coil performance can not be guaranteed. Later appeared semi-automatic transformer winding machine, which is driven by the motor to rotate the spindle to wind the transformer winding coil, although it improves the production efficiency, but the wiring work still has to rely on manual, only suitable for flat winding transformer winding coil winding, and winding head winding, welding and other operations must still be completed manually, so the product quality is not stable.

Later, with the emergence of TTL logic gate circuits, in the mid-1970s, with the development of CMOS technology, various types of equipment program control a large number of applications of digital integrated circuits, Western countries and Japan and other industrial powers have emerged CNC winding mechanism manufacturing industry. These CNC transformer winding machines represent the advanced level of winding mechanism manufacturing technology, especially the winding equipment produced in Japan, Italy, the United States and Germany is the leading technology.

Now the transformer winding machine as the core parts of the transformer production equipment, the market demand is very large, and the transformer manufacturing enterprises at home and abroad attach great importance to the development and application of advanced technology of transformer winding machine. Domestic transformer winding machine production enterprises are small, insufficient technical reserves, limited research and development funds, so there is still a big gap compared with foreign advanced products, the market share is low, unable to compete with foreign countries. To solve the key technical problems of transformer winding machine is the key to improve the quality of domestic winding equipment and enhance the market competitiveness. In order to meet the demand of transformer manufacturers for high quality and low price winding equipment, especially large transformer winding machine, on the basis of learning from foreign advanced experience, combined with domestic research results, the development of large transformer winding machine has important significance and practical value.

    Precision winding machine

      Precision winding machine For general winding machines, including CNC and automatic winding machines, only the set number of turns of enameled wire is required to be wound, and the appearance is roughly flat, but there are some special high-demand occasions , It is required that the arrangement of enameled wires must be neat without a random winding.

       This kind of coil has several advantages. First, the consistency of inductance is very high. Second, the enameled wire occupies less space, and the enameled wire can reach the ideal neat arrangement. Third, the energy density is high. Fourth, the high temperature resistance performance is better. , The enameled wires are in line contact, and in the case of random winding, the superimposition between the wires will have a little contact, and it is easy to break down under high temperature and high pressure.

       In order to achieve a stable and neat arrangement, in addition to the requirements for enameled wires, compared with general coil winding machines, high requirements are put forward for the electronic control, mechanism design and manufacturing accuracy of structural parts of the fine winding machine.

                     REPOSAL® Winding Machine Releases Code-Type Teaching Winding Machine Control System

              REPOSAL® winding machine releases special winding machine for frequency divider inductors

            In daily life, have you ever noticed more than one horn on your car? And more expensive cars have more horns. According to normal people's thinking, the car as long as there is a horn can emit sound signals on the line, more horn is why? The reason is very simple, for example, the turn signal and the warning horn are completely different, the sound frequency is different, and the sound range of the speakers used for high and low is naturally different. A single speaker cannot play a full frequency sound, and a sound may require a combination of multiple channels of sound to achieve a clear cue.

            Therefore, in order to make each speaker emit audio suitable for it, it is necessary to use a tool such as a frequency divider. In simple words, the frequency divider is a filter circuit composed of a capacitor and a frequency divider inductor coil wound by the frequency divider winding machine. The capacitor filters the low frequency to the tweeter, and the frequency divider inductor is wound by the frequency divider winding machine to filter the high bottom to the low frequency to the woofer, so as to distinguish the sound signals in different frequency bands in a sound. It has different sound frequency channels, high frequency sound channels can only pass high frequency sound, middle and low frequency sound the same. After the sound is distinguished, the sound is amplified and played in the corresponding sound amplifier, and finally we can get the most accurate audio we want.

            Frequency dividers are divided into two categories, one is a power divider, and the other is an electronic divider.

            The power divider is set in the speaker, the power amplifier in the speaker first amplifies the sound power, and then the power divider divides it into three audio signals, high, middle and low, and finally sends it to different speakers for playback. The advantage of this power divider is that it is simple and convenient to connect and use, but its disadvantages are also obvious, that is, its power consumption is large and the parameter deviation value is large, the error of the sound frequency is large, and its error is related to the impedance of the speaker, so it is not convenient to adjust.

      REPOSAL ® winding machine wire guided missile fiber winding forming technology has made a new breakthrough

           Fiber optic guidance of wire-guided missile is a closed-loop guidance and control of controlled missile by bidirectional transmission of information and control signals between missile and launcher using special fiber optics.

           Fiber optic guidance belongs to the wire guidance of remote control guidance, its advantages are not only high precision, strong anti-interference ability, can be equipped with optical cable shaft, micro camera, missile launch tail will release fiber, can control the missile and obtain target information.

           The winding and release technology of optical fiber is a key technology of optical fiber guidance. At present, we have not realized automatic production in the production of optical fiber winding in our country, so we rely on the winding technical personnel's proficiency very high. The cross-turns working procedure of the winding process is still mainly manual operation, low production efficiency, high error probability and low consistency.

           In addition to other ways to solve the high speed release of optical fiber, an important way is to ensure the smooth release of optical fiber through optical fiber winding. Optical fiber winding technology is the requirement of the pointer to the optical fiber guided missile and the technology of winding the optical fiber on the spool. In view of the unique properties of optical fiber and the special use of optical fiber guided missile, optical fiber winding becomes a complicated technical problem. In the process of automatic winding, the technical difficulties related to the properties of optical fiber are as follows:

         REPOSAL Winding Machine® Released  Tandem flat-wound winding machine         

         Suzhou REPOSA Electronic Machinery Equipment Co., Ltd. releases high-speed precision synchronous winding machine

Suzhou REPOSAL Electronic Machinery Equipment Co., Ltd. releases precision automatic paint stripping and wire breaking winding machine

    In the inductive coil winding process, the winding process requirements of the coil are quite different.The diameter of the enameled wire varies from thin to thick, the structure of the coil varies from disk to column, and the type of enameled wire ranges from ordinary to self-adhesive wire. Therefore, for a coil winding factory that does not emphasize competitiveness, the machine required is a winding machine with a larger range of adaptation, but often a winding machine with a larger range of adaptation is for each specific specification of coil winding. Whether it is quality or efficiency, it is difficult to have targeted competitiveness.

    In order to keep our customers competitive in the induction coil winding process, we have developed this winding machine-precision automatic paint stripping and breaking winding machine in response to customer needs.

This model is mainly aimed at coils with a skeleton with a larger enameled wire diameter. It has several features, one is the fast winding speed, if it can maintain a faster winding shaft speed when the diameter of the enameled wire is larger, and the other is the winding line is flat. Through control and targeted structural optimization, a compact and consistent coil can be stably wound. Third, there is an automatic paint stripping function. For thicker non-direct welding enameled wires, adding this function is equivalent to combining two processes Integrating into one process, the fourth is to add the function of automatic disconnection.For thicker enameled wires, automatic disconnection improves efficiency, strengthens consistency, and significantly reduces the labor intensity of operators.

For details, please refer to the video. The operation beat of this video is taken during the acceptance of the machine. The entire operation process is fast and stable, but in fact, there is still room for improvement in the efficiency of fixing and dismantling the enameled wire head.

　　　          REPOSAL®  Winding Machine successfully overcomes the difficulty in the winding process of closed coils of fixed-length titanium plates with loops.

      These tiny looped titanium plates are shown here, small metal structures approximately 12mm long, 4mm wide and 1.5mm thick, and have a row of four circular holes through them, two of which are for The main body pulls the suture through, and the other two upper holes are used for the passage of another group of seam lines. The structure is small in size, and it is necessary to form a closed connecting loop through the structural member, and the closed connecting loop is formed by twisting the yarn fibers of the loose structure. A closed high-strength braided coil is passed through the middle, which seems simple, but its core technology is reflected in the Loop, that is, a high-strength coil, which is woven evenly, tightly, non-woven, and without joints.

        This kind of titanium plate with loops is divided into two types, fixed-length type and adjustable type, especially the fixed-length type, whose length ranges from 15mm to 60mm. It is necessary to wind this closed loop in the middle of a titanium plate with such a small volume. Coils, and because the number of colonies cannot exceed the standard, cannot be wound by hand, but must be wound by 

equipment, which is extremely difficult to process. Its structural parts are small in size, and the diameter of the holes is only 1-1.5mm. It needs to form twisted yarns under such conditions, so this product has always been processed manually by hand, and its efficiency is low and consistent. Sex is hard to guarantee.

Because of the small size of the structure, the diameter of the hole is only 1-1.5mm, and it needs to form twisted yarn under this condition, so this product has been processed manually, and its efficiency is low. Consistency is difficult to guarantee.

　　　REPOSAL® Winding Machine successfully developed this equipment according to the customer's request, completed the simultaneous formation of a closed loop (including fiber bundles with a loose structure) and passed it to the porous structural parts, and maintained the twisted structure, which greatly improved the closed loop. The winding efficiency, in addition to obtaining the incomparable consistency of pure hand-made, makes the product have the conditions for large-scale production.

    Congratulations on our winding machine successfully passed the EU CE certification, enter the international market

      In response to the international market's requirements for the safety and quality of our winding equipment, recently, our series of winding machines have won the CE certification issued by the European Union certification body. This marks the recognition of the EU market for the |REPOSAL® winding machine, which means that our company has the ability to provide more professional and high-quality winding machine equipment for the international coil market, and further enhance the company's international competitiveness.

                 REPOSAL® Winding machine CE certification certificate

                 On the one hand, in response to the national "Belt and Road" call, REPOSAL® winding machine actively explore overseas markets. The passing of the EU CE certification not only opens the European market, but also the first step to open the global market, which means that the company's winding machine can be exported to various countries in the European Union, and the pursuit of free circulation of our winding equipment in the global scope has a positive effect on the company's expansion of overseas winding machine market and international business expansion. At the same time, it also provides safety and quality assurance for the sales of the winding machine in the domestic market, and enhances the brand influence of the winding machine.

       In the narrow sense, the winding machine mainly refers to the winding machine of various enamelled wire coils, these coils may be transformers, relays, inductors, current transformers, various sensors, these coils can be seen everywhere in our lives, the common feature is to use enamelled wire winding, the difference is according to the design requirements, and the cost and efficiency requirements of industrial products, Its winding process is not corresponding, so derived from a variety of different winding machine, we show on the official website is only a part of the conventional winding machine, and some are customized, or special industries are not displayed, if you need to know, you can contact us.

          Coils can be seen everywhere in our lives, such as the electric meter in the home, there are metering induction coils, trip coils in the circuit breaker, transformer coils in the community, various motor coils in industrial automation, various sensor coils, starting coils on the car, ignition coils, power motor coils on the bullet train, etc., it is no exaggeration to say that we live in a world of coils. There are so many coils, and the corresponding winding machines are different, so the winding machine is as important to the electrical world as the lathe is to the mechanical world.

          There are so many types of winding machines, if you are not familiar with them, those selections have become a big problem, we now make a simple introduction from several aspects.

          One is the winding method, which is generally divided into parallel winding machine, ring winding machine, and flying fork winding machine.