Molla a forza variabile

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The Importance of Choosing High-Quality Curtain Springs for Long-Term Durability: Curtain springs are a crucial component of window treatments, providing the necessary tension to keep curtains or blinds in place. As such, it is essential to choose high-quality curtain springs to ensure long-term durability and functionality. This blog post will explore the importance of selecting high-quality curtain springs and provide tips on how to choose the right ones for your needs. What are Curtain Springs? Curtain springs are small, coiled springs that are attached to the end of a curtain rod. They help to keep curtains or blinds taut and in place, preventing them from sagging or drooping. Curtain springs come in various sizes and strengths, depending on the weight of the window treatment and the tension required. The Importance of Choosing High-Quality Curtain Springs Choosing high-quality curtain springs is essential for several reasons. Firstly, they provide reliable tension that ensures your curtains or blinds stay in place. Low-quality curtain springs may not provide enough tension, causing your window treatments...

Design cordless curtain springs: There are many types of curtains on the market today, such as Venetian blinds, Roman blinds and honeycomb blinds. When the curtains are lowered, the windows can be shaded to reduce light entering the house and improve privacy. Generally speaking, curtains are provided with control ropes, which can drive the bottom rail of the curtain to rise or fall. In particular, the bottom rail is raised by a roller take-up hanger, and the hanger can be extended from the roller so that the bottom rail can be lowered. However, the problem that the control cord may restrain children has been noted, so a cordless curtain has been developed. This cordless curtain can raise and lower the bottom rail by means of a coil spring box. Coil spring boxes used in window blinds usually consist of multiple springs that provide torsion to maintain the bottom rail at the desired height. However, the assembly of such a coil spring...

Pull Bead Roller Blinds and Cordless Roller Blinds: The roller blinds are blackout roller blinds, soft yarn roller blinds, and Shangri-La roller blinds in appearance. They are mainly corded and cordless. Roller shutters have many advantages such as beautiful and simple appearance, firm and durable structure, etc. Roller shutters are suitable for various places, especially for large-area glass curtain walls. When the roller blind fabric is put down, it can soften the indoor light, avoid the trouble of direct sunlight, and achieve a good shading effect. When the roller blind is raised, its volume is very small, so that it is not easy to be detected. The bead roller blinds use the rope or chain to ascend and descend. The biggest problem of the rope/bead system is that the curtain will not be pulled when it is too big, and the rope will easily break. It is not very convenient to use, and the rope is easy to get dirty. It is very dangerous for...

Molla a forza variabile nel dispositivo di somministrazione del farmaco: Devices for automatically delivering drugs, such as automatic syringes, are known as convenient and safe means of protection for patients to manage different drugs themselves. For safety reasons, many devices for delivering drugs include covers and other devices that protect users before and after use, such as injection needles. Different devices for transporting drugs are different in their overall design settings. They all have a mechanism for automatically transferring the contents of pre filled and pre filled containers, and there is no need to manually force the contents of the containers into the patient through the transmission components, namely needles and nozzles. Automatic delivery mechanisms in devices used to deliver drugs usually include compression coil springs. The challenge in the design of such springs is to balance the need for sufficient force at the end of the stroke and the need for less force during storage that will overload other parts of the device (when the spring is fully compressed)....

Application of power spring in electric wheelchair safety lock: One of the biggest benefits of electric wheelchairs is the use of an electric drive that allows users to move freely even without having to push themselves manually or with human power. These wheelchairs are prepared for people in different situations, while allowing more people with inconvenient lives to regain their freedom. The electric wheelchair includes a mobile seat part, a body part used as a seat support, a seat adjustment mechanism arranged under the seat to maintain the balance of the seat part, a underbody part located under the body part, and a crawler walking mechanism. Electric wheelchair characterized in that the safety locking device is a double-wing safety locking device comprising a housing, a pair of latching members fixed to the wall of the housing by the action of a power spring, two pinions, one of which is configured as a small motor, each latching member having a small tooth edge and a large tooth edge, each of the...

Variable force spring Product

Molla per spazzole di carbone: Characteristic: 1. Due to the constant force, regardless of the length of the carbon brush and the commutator, the pressure remains the same. 2. Constant force spring reduces carbon brush loss, prolongs the life of carbon brush, and reduces current loss. To 3. Small motors can be designed to reduce the outer diameter of the motor. 4. The length of carbon brush can be increased. To 5. A larger commutator can be used. To 6. Reduce sparks and reduce electromagnetic interference. Constant force spring for single roll carbon brush 1. Carbon brush width 2. Carbon brush height: The spring width must be smaller than the carbon brush height 3. Length of abradable carbon brush: The spring stroke must be greater than the length of the abradable carbon brush 4. Contact pressure required for carbon brush and commutator: required spring force Constant force spring for double-rolled carbon brush 1. Carbon brush width 2. Carbon brush height: The spring width must be...

Molla a forza variabile: Characteristic: The appearance of variable force spring and variable torsion spring is very similar to constant force spring and constant torsion spring. Variable force springs and variable torsion springs can break through the influence of Hooke’s law on traditional springs, so that stroke and force no longer increase proportionally, but can achieve various elastic force-displacement combinations such as negative slope stepped constant force, which can be mechanically For engineering requirements, use the relationship between elastic force and displacement stroke to design various elastic curve changes in specific applications. There are a variety of different variable force springs, variable torsion spring application designs, and solutions. The manufacturing range of variable force springs and variable torsion springs: The thickness is 0.05~0.85mm, and the width is 2.0~65mm.

Molla a torsione costante: Characteristic: The fixed (constant) torque spring (spring) is made of stainless steel. The external force rewinds the mainspring from its natural state to the output wheel (energy storage). When the external force is removed, the spring will return to its natural state. At the same time, a constant torque force (stored elastic force) is generated (released) on the output wheel, so it is called a constant torque generator. strip. Belongs to (a use method in constant force spring) Advantage: The advantages of fixed-torque springs compared to power (scroll) springs: 1. The torque will not change due to the increase in the number of revolutions. To 2. There is no limit to the number of available turns, and the design of multi-turn turns mostly adopts a fixed-torque spring. To 3. The number of invalid rotations is small, more energy can be stored, and the efficiency is higher. To Manufacturing range of fixed torque spring: The thickness is 0.05~0.85mm, and the width...

Molla a forza costante: Characteristic: Constant force (constant force) springs are rolled by stainless steel strips. The high-strength steel strips are shaped by specific production spring equipment. When the external force straightens them, the spring will naturally wind back and produce elasticity, but it reaches us The goal can return to the starting point we specified after being shifted. Advantage: The advantages of constant force spring over traditional wire spring: 1. In a very small installation space, a very high elastic output can be achieved. 2. Maintain a constant elasticity in all strokes. 3. The pre-stroke stroke is short, and only a short stroke is needed to achieve the required elasticity. 4. The original length is less than the wire spring, and the stroke is unlimited. The manufacturing range of Dingli Clockwork: The thickness is 0.05~0.85mm, and the width is 2.0~60mm. Principle of the scene: The constant force spring has the characteristic of maintaining a constant force during a long stroke, and can achieve...

Primavera di potenza: Characteristic: The power spring is coiled by steel strip. A spring box is required to limit its outer diameter. The center of the spring is connected to the shaft. When an external force is applied to make the shaft and the spring rotate relative to each other, the spring will be wound on the shaft and stored Torsion, when the external force disappears, the spring generates torsion on the shaft or spring box. Advantage: Power springs are divided into natural power springs and pre-stressed power springs according to their relaxed shape. In contrast, the pre-force type power spring can store 25% to 55% more torque and provide more effective turns. Product manufacturing range: The thickness is 0.05~0.85mm, and the width is 2.0~60mm. Principle of the scene: The high-precision pen injector uses a unique power spring to provide small and highly accurate drug dosages. A fixed amount of medicine is injected into the body through the constant force of the spring...

Servizi di montaggio e montaggio: Qianye Company non fornisce solo la produzione di molle di precisione, ma si concentra anche sulla progettazione strutturale e sulle soluzioni funzionali dell'intero sistema di molle e può fornire un set completo di produzione e assemblaggio del sistema

Variable force spring News

Traditional power springs and preloaded springs: Traditional power springs and preloaded power springs are fabricated from spring steel bars to provide torque. Spring steel is a low alloy, medium carbon steel or high carbon steel with a very high yield strength. Objects made of spring steel can return to their original shape despite significant bending or twisting. Power springs use flat (unstressed) steel windings, while pre-stressed power springs use pre-stressed steel to produce a larger range of usable torque than conventional power springs. During the manufacturing process, the spring is wound into the retaining ring or the customer's housing (the retaining ring is pictured below). When ready for final installation, carefully install the spring into its housing with the outer end attached to the outer edge and the inner end attached to the mandrel (see photo below). During operation, the housing or mandrel will be fixed while the other component is free to rotate. Depending on the requirements of your specific design, it may be beneficial to use a fixed mandrel/free box or free box/fixed mandrel arrangement. These springs are typically used to retract the cord or cable of the spool. You might see it in lawn mowers, retractable lanyards, or dog leashes. This is also the type of spring used to drive many mechanical clocks and timers, which is why they are sometimes called "clock springs". The load provided by the spring increases with the cross-sectional area of the material. The number of turns the spring can provide depends on the space available between the mandrel and the...

Custom springs for medical devices: For most of the past two decades, the medical device industry has been booming. Healthcare research has led to the rapid expansion of specific devices used to treat medical needs, from rare to common. These devices range from simple to surprisingly complex, often including automatic sensors, computer monitoring, and even remote monitoring by healthcare providers. When you are designing for a new medical device, it is essential to consider the components you must put together and the system they will create. This means breaking down your design to a level where you can visualize the components that need to go into the project. This means designing each spring assembly individually after evaluating the available options. To help you solve this problem, here are the four most commonly used springs for medical devices and their current common applications. Constant force springs Constant force springs provide a smooth range of motion and a constant load in either extending or retracting direction. This spring design has no inertia to overcome when considering the initial position forces. Constant force springs are compact and mount easily to existing hardware. These types of springs can eliminate the need for costly and complicated motors, thus decreasing device size and cost. Spiral torsion springs Spiral torsion springs are normally used in applications requiring less than 360 degrees of rotation. They are generally used to obtain a large amount of torque through a small amount of rotation. Spiral torsion springs allow for rotation in two directions and a “return to center” capability, like a dental X-ray head unit. Spring reels Spring powered...

Power spring used in automobile safety belt: Safety belt is equal to life belt. Everyone should see the painful accidents caused by not wearing safety belt. I believe everyone is familiar with the car safety belt. It is a safety device to avoid rushing out of the car during collision and causing death and injury. Automobile safety belt is recognized as the cheapest and most effective safety device, and it is also a necessary safety configuration. In a typical safety belt system, the safety belt is connected with a retractor. The core component of the retractor is the reel, which is connected with one end of the safety belt. Inside the retractor, with the help of the action of the power spring, the webbing can expand and contract freely with the movement of the user's body without loosening the webbing. In case of emergency braking, collision or sharp change of vehicle driving state, the sensitive element in the retractor will lock the reel to fix the webbing at a certain position and bear the load imposed on the webbing by the user's body. The power spring is made of rolled steel strip. A spring box is required to limit its outer diameter in use. The center of the spring is connected with the shaft. When an external force is applied to make the shaft rotate relative to the spring, the spring will roll on the shaft center and store torque. When the external force disappears, the spring will produce torque on the shaft or spring box. Qianye has made technical product updates for power springs. First of all, our company...

Design of Constant Force Spring in Spool Damper: When powered by a damped constant force spring mounted on the spool, there are several key principles that influence the design of linear motion applications. These principles support robust and consistent performance of products in a variety of applications, including automotive and aircraft interiors, industrial machine components, and many other user interface applications. The example components shown above will be cited as examples of the various design principles detailed below. This example assembly has a sliding drawer (shown in red) powered by a constant force spring mounted on a spool (spool in green; constant force spring shown in yellow) running within a mounting base (shown in grey), such as a central Console a car. A ratchet or door latch mechanism (not shown) can be implemented to allow the tray to be locked in place with a single press by the user. This example is a typical set of applications used in the automotive industry. 1. Preload spring When a constant force spring is in its free state, it does not exert any force. As the spring stretches, the spring force rapidly increases from zero to nominal load. However, to avoid including this "accelerated" part of the work envelope, the design can use preloading. An example of preloading is shown in the figure below. Note that although the mechanism is retracted, the depicted spring is extended. To include preload in the design, ensure that the spring extends a distance equal to the outer diameter of the coil during assembly in order to engage...

Applicazione della molla a forza costante nelle apparecchiature mediche: A support device for assisting a patient is used to assist the movement of a patient at the patient support device. In the prior art, a caregiver would operate a patient lift or motor by guiding the lift to raise or lower the patient at the patient support. Such manipulations often require the precise manipulation of heavy forceps and motors by a paramedic to help the patient move around the patient support. The support means may incorporate a constant force spring design, the support structure comprising a base and an upper portion extending upwardly from the base. The constant force spring assembly may include a carrier slidably coupled to the base secured to a first end of the carrier. The base may include channels that guide sliding movement of the carrier relative to the base of the support structure. The constant force spring assembly may also include a spool and a motor configured to drive the spool. The auxiliary belt may be secured to the spool so that the auxiliary belt is wound and unwound from the spool in response to a motor driving the spool. And the motor can be fixed to the carrier to move with the carrier. Constant force springs get their name because their motion force is constantly applied. The load is determined by the width and thickness of the material and the diameter of the coil. The tightly wound rollers work in a linear motion, not obeying Hooke's law (F=kX), but constantly generating forces as they deflect.These springs provide...

The QY spring mechanism of manual cordless blinds is very different from ordinary wire springs: The QY spring mechanism of manual cordless blinds is very different from ordinary wire springs, and its core component is the need for a spring with negative gradient. Cordless blinds are usually designed to encounter the problem that when the blinds is pulled to the top it will sag and when it is pulled to the bottom it will return to a certain height of the spring. The main purpose of Qianye Precision is to provide a control system for cordless curtains to hover freely, so that the lifting and lowering of the cordless curtains can stop at any position desired by the user. At the same time, there will not be a situation where the internal elastic element is fatigued and cannot be kept fully open. More info：https://qyspring.net/ E-mail: cici_cao@qianyejm.com Whatsapp: +86-183 7490 5808

Fall Arrester using Qianye power spring: The fall arrester is also called the speed difference device, which is a protective product. It is suitable for safety protection when the crane is hoisted to prevent the suspended workpiece from accidentally falling. It can effectively protect the life safety of ground operators and the damage of the suspended workpiece. It is used in metallurgical automobile manufacturing, petrochemical industry, engineering construction, electric power, and ships. , Communications, pharmacy, bridges and other high-level workplaces. The protective effect of the protective device product must pass. The power spring has a retractable function and is an ideal part of the gravity dissipator used in the dropper. The anti-fall system is connected between the fixed points of the cable harness, and they can stop the user from falling in the first time. Even when the power spring is fully deployed, the gravity dissipator of the dropper can prevent the user from being hit in the event of a fall. The advantages of Qianye power springs are divided into natural power springs and pre-force power springs according to their relaxed shape. In contrast, the pre-force type power spring can store 25% to 55% more torque and provide more effective turns. When using Qianye power spring as its parts in normal use, the safety rope will expand and contract freely with the human body. Under the action of the mechanism in the device, it is in a semi-tensed state, so that the operator has no sense of worry. In the event of a fall, the pulling speed of the safety rope will be significantly increased,...

Application design of constant torsion spring in bicycle nest: The bicycle nest is an automatic lifting device for bicycles, which is placed on the ceiling of the room and can be stably raised and stored on the roof. It can safely accommodate any bike, no matter its shape or size. The storage method is simple. If you need to get on the bike, gently pull on the loose rope, then push the bike down and the bike will be lifted. If you want to take the bike off, you just have to gently pull your bike down and let the bike fall to the ground. This bike rack is designed so that you can easily place your bike, and you can store your bike almost anywhere. It maximizes the bike's on-road storage space. What makes this unit unique is its unique spring mechanism. You don't need power or pulleys to easily lift the bike for you, just your fingertips guide. The unique spring mechanism is the key reason the bike nest moves the bike up and down, making this spring challenging to make. There are strict requirements on the length and stability of the spring, and the spring that does not meet the standard is unqualified. The bicycle nest is attached to your ceiling with two bolts and uses a spring mechanism to raise your bike. Just like a functioning set of blinds, a gentle pull on the cable will bring your bike to the ground. You can also park the bike anywhere while it's down, which means the bike nest also doubles as a light workbench.The corresponding thickness shall...

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