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What are constant force springs and how are they used?
What are constant force springs and how are they used?
Constant force springs are specialized springs that are used to provide a constant force over a range of motion. This makes them ideal for use in a variety of applications, such as automotive or robotic systems.under we will take a closer look at what constant force springs are and how they can be used. What are constant force springs? A constant force spring is a type of spring that produces a constant force over its entire range of deflection. This type of spring is often used in applications where a stable force is required, such as in the actuation of a valve. Constant force springs don’t have much in common, either in form or function, with standard helically wound springs. For starters, constant force springs are formed from pre-tensioned metal strips, rather than wire. At their most basic level, however, constant force springs do exactly what other springs do. That is, they conform to Hooke’s Law. Hooke’s Law essentially states...
How to get the most out of your device with Variable Force Spring
How to get the most out of your device with Variable Force Spring
If you're looking for ways to get the most out of your variable force spring, you've come to the right place! We will take you to understand. What is a variable force spring and what are its uses? A variable force spring is a device that allows a user to adjust the amount of force applied to a plunger. This type of spring is often used in medical devices, such as syringes, to ensure a consistent level of force is applied with each use. How do you maximize the performance of your variable force spring? There are a few things you can do to maximize the performance of your variable force spring. First, make sure that the spring is properly aligned with the moving parts it is supposed to be interacting with. Also, make sure that there is no debris or other obstructions in the way. Finally, make sure that the spring is properly lubricated. What are some of the...
정력 스프링 설계 시 고려해야 할 두 가지 측면
정력 스프링 설계 시 고려해야 할 두 가지 측면
The constant force spring is made of stainless steel strip. The high strength steel strip is shaped by specific spring production equipment. When the external force is straightened, the hair strip will naturally roll back and produce elastic force. However, to achieve our goal, we can return to the designated starting point after displacement.     Constant force spring has the characteristics of maintaining constant force in a long stroke. Its function can be applied to the adjustment of lifting doors and windows, computer monitors and fans, shopping mall display shelves or motor carbon brush motors and other products that require linear motion such as round trip, sliding, stretching, homing, balance or force saving. So how to design the constant force spring in line with product performance ? We generally need to consider from two aspects :     1. Performance of constant force spring    The two most important properties of the constant force rod are elastic value and life. The thicker the...
Design and manufacturing method of constant force spring
Design and manufacturing method of constant force spring
 Design and manufacture a complete set of constant force springs for a variety of applications in almost all industries, from medical care to aerospace and general household products. The constant force spring is different from the traditional spiral wound spring. They are made of pre tensioned high-yield metal strips (usually stainless steel) rather than wires. Constant force springs are classified as "tension springs". When winding, the metal strip resists uncoiling with nearly constant resistance. When extended, the internal stress of the metal resists any load force at a nearly constant rate. Once the spring extends to a length of 1.25 times its diameter, it reaches full load and produces a nearly constant force. According to the size of the spring and the load it supports, the fatigue life cycle of the constant force spring is between 2500 and 1000000 times.     Constant force springs are commonly used in automotive engineering, aerospace engineering, medical and retail. Some common applications are:...
Constant Force Springs
Constant Force Springs
The extension type of Constant Force Spring represents the most basic, yet most versatile, type of constant force spring. It is a pre-stressed flat strip of spring material which is formed into virtually constant radius coils around itself or on a drum. When the strip is extended (deflected) the inherent stress resists the loading force, the same as a common extension spring, but at a nearly constant (zero) rate. A constant torque is obtained when the outer end of the spring is attached to another spool and caused to wind in either the reverse or same direction as it is originally wound. The full rated load of the spring is reached after being deflected to a length equal to 1.25 times its diameter. Thereafter, it maintains a relatively constant force regardless of extension length. The load is basically determined by the thickness and width of the material and the diameter of the coil. Qianye Spring  offers a stock of constant force springs in a variety of...
Design of constant force springs
Design of constant force springs
 A constant force spring is a spring that exerts a constant force over its range of motion. That is, it does not obey Hooke's law. Typically, a constant force spring is constructed as a coiled band of spring steel so that the spring relaxes when fully coiled. When it is unrolled, the restoring force comes mainly from the portion of the belt that is close to the roll. Since the geometry of this region remains nearly constant as the spring unfolds, the resultant force is nearly constant.       By creating a spring with a variable pitch, you can make a push-shape spring with a constant velocity. Placing a larger pitch in a larger outer diameter coil and a smaller pitch in a smaller outer diameter coil will force the single spring to fold all coils at the same rate when compressed.       Design of Constant Force Springs: A constant force spring is a coil of prestressed...
Pull Bead Roller Blinds and Cordless Roller Blinds
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...
"Constant force spring" is a necessary component for cable accessory manufacturers at home and abroad
"Constant force spring" is a necessary component for cable accessory manufacturers at home and abroad
With the increasing application of cold shrinkable cable accessories, constant force spring has become a necessary component for cable accessories manufacturers at home and abroad. How to find a suitable constant force spring in practical application? How to determine the continuous elasticity, magnetism and corrosion resistance of constant force spring has become the first consideration for cable accessory manufacturers and customers. Whether imported brand or domestic brand, the use of constant force spring for standard cable accessories has become a standard configuration, but the quality is uneven. Faults often occur due to factors such as material, type selection or performance. The corrosion resistance of constant force spring is related to the material and processing technology. The corrosion resistance of stainless steel mainly comes from chromium. The corrosion resistance of steel will be greatly improved only when the chromium content exceeds 12%, and the addition of nickel will also improve the corrosion resistance. Constant force spring for cable is generally made of stainless steel 301 in China...
double torsion springs suppliers Product
 파워 스프링
파워 스프링
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...
 일정한 힘 스프링
일정한 힘 스프링
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...
 조립 및 장착 서비스
조립 및 장착 서비스
Qianye Company는 정밀 스프링 생산을 제공할 뿐만 아니라 전체 스프링 시스템의 구조 설계 및 기능 솔루션에 중점을 두고 시스템 생산 및 조립의 완전한 세트를 제공할 수 있습니다.
 카본 브러쉬 스프링
카본 브러쉬 스프링
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...
 가변력 스프링
가변력 스프링
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.
 일정한 비틀림 스프링
일정한 비틀림 스프링
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...
double torsion springs suppliers News
 The power spring can realize the free lifting and lowering of the chandelier
The power spring can realize the free lifting and lowering of the chandelier

시간:2022-9-14

Chandelier is a common lighting fixture, which is widely used in offices, exhibition halls, living rooms, restaurants and other places. It is very popular because of its beauty. But now common chandeliers are generally installed with fixed hanging height. If you want to adjust the hanging height of the lamp, you can only adjust it manually. The adjustment process is complex. Therefore, a chandelier with simple structure and convenient installation that can automatically adjust the hanging wire has emerged. The chandelier that can automatically adjust the hanging wire realizes that the height can be adjusted only by lifting the lamp body up or pulling it down. When the lamp body is at the hanging height position, the hanging wire can automatically adjust the retractable length of the hanging wire through the adjuster. The hanging height of the lamp can be adjusted by adjusting the lamp body.    A chandelier that can automatically adjust the hanging wire, including the hanging wire, the hanging wire automatic adjuster, the lamp body, and the ceiling box. The lamp body includes an LED light source and a driving power supply; the automatic suspension wire adjuster is built into the ceiling plate, one end of the suspension wire is stored in the wire receiving groove of the automatic suspension wire adjuster, and the other end is removed from the ceiling box cover. The wire trough leads out through holes and is connected and fixed with the lamp body; the suspension height position of the lamp body of the chandelier is the suspension height position maintained by...
 브러시 스프링 프로텍터
브러시 스프링 프로텍터

Time:2022-9-22

       Conventional motor arrangements include a rotor with windings to conduct current during machine operation. As the rotor rotates, current is conducted through the rotating elements from sources external to the rotor to the rotor windings. A rotating element such as a slip ring or a commutator contacts the brush spring to conduct current.        There are two main types of brush springs, single-coil brushes and double-coil brushes. The brush springs provide constant pressure to the commutator and slip rings while minimizing brush wear, burning and scratching. They provide excellent work at high speeds for improved motor performance. The brush spring is relative to the rotating element, and the brush spring is ground due to friction during use. It is damaged and needs to be replaced periodically. So sometimes the brushes are replaced during motor downtime. To change the brushes safely, the operator uses one hand (to avoid current passing through the operator's body). Brush carriers can be heavy and unwieldy, so brush replacement is not only difficult but dangerous.        A brush holder, brush handle assembly helps operators safely remove replacement brushes in electric machines or other rotating machines. A stationary support is included having at least one groove and a pronged electrical connector. The stationary support has a conductive strip for a portion of the body for being configured to pass through the stationary support. Its lead electrical piece is configured to provide electrical conductance with a collector base (collector base) and electrical fork connectors.        The brush retention structure...
 Application of variable force spring in electric roller shutter
Application of variable force spring in electric roller shutter

시간:2022-9-14

The electric roller shutter has many advantages, such as beautiful and simple appearance, firm and durable structure, etc. the roller shutter is suitable for a variety of places, such as business office buildings, hotels, restaurants, offices and homes (used as gauze curtain), especially for large-area glass curtain walls. When the roller shutter fabric is put down, it can soften the indoor light, avoid the trouble of direct sunlight, and achieve a good sunshade effect. When the roller shutter is raised, its volume is so small that it is not easy to be detected. Have you ever thought about why the roller shutter will automatically rise and fall, and can freeze at any position without running up or down? You may not have an in-depth understanding, because the addition of variable force spring makes the electric roller shutter achieve this effect. The electric roller shutter extends from the longest to the shortest, and the weight of the lower beam changes from light to heavy. Therefore, the elastic force of the variable force spring needs to gradually increase from small to large, reaching the full stroke and gravity balance. So that the curtain can stop and hover at any position. Many variable force springs on the market can not reach the variable force spring whose force is changing at any section, so many electric roller blinds will add some components (deceleration device, damping device, gear device, limit device, etc.) to achieve the effect of perfect lifting, free positioning and free pause. Qianye often contacts with some foreign curtain industries, especially in cordless curtains and roller blinds, which...
 Why is the support important for people to face the display for a long time?
Why is the support important for people to face the display for a long time?

시간:2022-9-14

What do you think of the correct sitting posture in office? Relax your shoulders, keep your eyes in front, and keep your eyes balanced at the top of the computer or the top 3 / 1 of the monitor. This is the correct sitting posture of our office. To stand our neck, we need a certain height of the display. The horizontal position of the display is low, and the neck is easy to tilt forward. The cervical spine will obviously feel uncomfortable, very tired, and will cause pressure on the muscles of the neck.      The display bracket is mainly composed of upper support arm, lower support arm, display connector and desktop clamp. The most important core lifting components are in the upper support arm, which supports the display through the deformation of spring or air rod structure in the upper arm. When it comes to the spring in the core lifting part, the reason why the display can rise and fall is that it is designed into a lifter that can adjust the height of the display at will by using the principle of free rise and fall of constant force spring. With the help of the tension of the spring, its height can be adjusted freely. Compared with the column support (the lifting up and down is cumbersome, and the screws need to be adjusted by tools every time) it is simpler to use and more convenient to operate after adding a spring. It only needs a little effort to complete the adjustment, which can be said...
 Power springs used in recoil start systems
Power springs used in recoil start systems

시간:2022-9-14

 Small engines are well known and are commonly used in lawn mowers and garden tractors and various other garden and lawn maintenance tools, in addition to other environments. Typically, each of these engines is equipped with a recoil starting system that includes a rope that rotates the starting mechanism to engage a flywheel that is connected to the engine for starting purposes. Once the rope starter is pulled, the recoil mechanism is always provided with the engine to reel the starter rope back to the starting mechanism.   The recoil portion of the starter mechanism is operated by a power spring that tensions when the operator pulls on the starter rope. Once the rope is fully pulled, the operator releases it. Most power springs on the market often fail, so the recoil rewinding mechanism needs to be disassembled and the spring replaced. And replacing the spring is a tedious task because the operator needs to keep the spring in the cavity inside the recoil starter pulley and then coil the spring into the pulley mechanism while keeping the spring in the coiled position and under sufficient tension. Such a procedure requires not only skill, but sometimes infinite patience. That's why the quality of the power spring is a top priority - after all, no one wants to change the power spring inside too often.   Shenzhen Qianye Precision Metal Co., Ltd. was established in 2006 to supply high-quality stainless steel springs for many fields. Through continuous efforts, 20 patent certificates and 4 spring equipment software copyrights have been granted by the State Intellectual Property Office, and an enviable...
 The power spring makes the tape measure shrink freely
The power spring makes the tape measure shrink freely

시간:2022-9-14

Tape measure, I believe everyone is familiar with it. Tape measure is a common measuring tool in our daily life and work. After the tape measure is pulled out, it can be rolled up because there is a power spring in the tape measure. When pulling out to measure the length, it actually lengthens the length of the scale and spring. Once the measurement is completed, the spring in the tape measure will automatically shrink, and the tape will also shrink under the action of spring force, so the tape measure will roll up. The power spring is an elastic fitting in the tape measure. The end of the steel bar scale is connected to the front end of the spring, and the end of the spring is fixed in the middle of the tape measure. The tape measure mainly uses the energy storage characteristics of the spring, which can be said to be the conservation of mechanical energy .When you pull the tape measure, you work on the internal spring, and the energy is stored by the power spring; when you release it, the spring relaxes, releasing energy and causing the tape measure to retract automatic contraction uses the lever torque principle: in the stretching state, the force arm is the smallest and the spring output is the largest; in the retracted state, the force arm is the largest and the spring output is the smallest.         When the scale is pulled out, the spring is tightened to produce a force to roll back. When the tension of the scale is released,...
 Constant force spring design for adjustable desk and monitor stand
Constant force spring design for adjustable desk and monitor stand

시간:2022-9-14

In order to conform to the height of ergonomics, adjustable desk and display bracket have been widely used in the market. These applications enable people to choose to work sitting or standing, and adjust the appropriate height of equipment to meet the needs of medical care. The application of these two products can not be separated from the constant force spring. Why is it inseparable? Because the function of lifting in the product is to use the principle of free lifting of constant force spring internally to design a lifter that can adjust the height at will. With the help of the tension of the spring, its height can be adjusted freely. Constant force springs are characterized by a large output force with little space requirement, applying an almost constant force throughout the stretch. The constant force spring also has the characteristics of short initial preload, that is, it can withstand the rated load at short elongation, and provide long elongation capability. All functions are ideal for use as a balancing function, not only for ergonomic height-adjustable desks and monitor stands, but also for various height-adjustment applications such as patient bedside tables, wall-mounted storage cabinets, monitor and keyboard integrations Medical workstation.     Furniture and Medical Device Design Engineers If you think a constant force spring is a good fit for your application, here are some factors to consider during the design phase of your project.       1. Load conditions     Constant force springs generate force as the material stretches. The rated maximum working length of the constant force spring. This means that the maximum...
 Application of constant force spring in medical equipment
Application of constant force spring in medical equipment

시간:2022-9-14

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...