Constant force spring reel

3 types of springs and some common applications

Time:2022-9-14

Smooth Range of Motion: Constant Force Springs Constant force springs provide a smooth range of motion and constant load, meaning they do not follow Hooke’s law. They are uniform in length and coiled into a permanent diameter. Constant force springs are frequently used for applications that require counterbalancing, including windows. In fact, window balance springs are one of our most successful products. In addition, the springs we manufacture are often designed for medical devices and aerospace applications. Their smooth range and steady motion control enhance instrument articulation.   High Torque with Little Rotation: Spiral Torsion Springs Spiral torsion springs are another popular product we manufacture.These springs are ideal for applications that require high torque and less than 360 degrees of rotation. (270 degrees maximum is preferred). Spiral torsion springs are commonly used in applications that require a “return to center” function, like a medical instrument joystick. They’re also ideal for electric motors and automotive applications. If your application requires this “return to center” function, developing a custom spiral torsion spring may be the best solution. Torque with Significant Rotation: Power Springs Power springs (also referred to as clock springs) are appropriately named due to their rotational energy that takes the form of torque. The torque increases as the spring is wound tighter. They are wound around an arbor or shaft and are retained in a housing. Their large rotation capabilities make them an ideal spring for a number of automotive applications or medical devices. Power springs are also frequently used for counterbalance mechanisms in industrial sectors. Custom vs. Stock Springs: Which are Best for You? As you begin to develop...

Torsion springs: where are they used and why did you choose to utilize them?

Time:2022-12-1

There are many types of springs, but the most common are torsion springs. The design of torsion springs is optimized to maintain maximum rotational pressure between two surfaces, these helical or helical springs are usually adhered to the coils at both suspended ends. These ends are connected to external components, which are then rotated to apply bending stress. Unlike other springs, torsion springs are ideally balanced and able to withstand twisting, giving them a place in many industries. Made of various coated metals such as stainless steel, carbon, titanium, nickel or copper alloys, torsion springs are usually wound around a shaft to further increase its stability. The basic principle of a torsion spring is to retain energy as the spring assembly twists. When this is applied, torque is applied in the opposite direction to the deformation angle. This allows energy to be stored and released when necessary, and the torsion spring also secures the mechanism when necessary.       Torsion springs are used in many applications; especially those using pop-up styles. They are used in various clamps and specific door mechanisms such as those found in CD players. One of the most obvious uses of torsion springs is undoubtedly in a mousetrap, which relies entirely on a centrally located torsion spring. They also sit in the center of traditional clothing clips. They are also used in heavier cases such as garage door balancers or car trunk opening mechanisms. Even in ancient times, primitive torsion springs were used as part of the giant catapults (or trebuchets) that were later used...

Excellent characteristics of Qianye spring

Time:2022-9-14

Spring is a kind of mechanical part that uses elasticity to work. The parts made of elastic materials deform under the action of external force, and return to the original state after removing the external force. It is generally made of spring steel, and the types of springs are complex and diverse. Qianye company has strong production strength and a number of senior technicians, who can assist in product design, development and proofing according to your customers' needs, so as to find the best solution for your products to meet your application needs. All kinds of springs produced by the company are at the leading level in the same industry and enjoy high reputation. They have been favored and praised by customers all the time. The excellent features of the product mainly include: (1) Using high-quality raw materials at home and abroad, there is no problem of weak elasticity and poor hardness stability caused by raw materials. (2) The high-precision slitting machine has high precision and stable quality, and there is no problem of large deviation of material width and size. (3) The high-precision edging machine has no burrs around. There is no need to worry about hurting the operator and supporting products during installation and use. (4) The self-developed stretch forming process (invention patent has been obtained) and forming equipment are self-developed and manufactured by our company, and the produced spring greatly increases the service life of the spring. (5) High temperature heat treatment has uniform surface color, stable tensile strength and strong fatigue resistance. (6) After 24-hour pressure test, the quality is guaranteed. (7) In terms of price, the factory...

How to determine the length of a constant force spring

Time:2022-9-14

  Constant force springs are mechanical devices used in applications that typically require some kind of balance or retraction mechanism. In design and function, constant force springs differ from the more common types of coil springs. They apply a consistent linear force or torque that remains constant over a wide range of motion. When a coil spring is under force, whether it is stretched, compressed, or rotated, it produces a force proportional to its stretch. How a spring responds when a force is applied or released is called spring deflection. Years of experience tell us what happens when a spring is released from its temporary state. We know that the spring will return to its original position, but it will be proportional to the force exerted on it before releasing. A spring has a restoring force that allows the elastic material to return to its original state - the equilibrium position after the applied force is removed. Stretching, squeezing or twisting, what makes a coil spring a spring is its proportional restoring force. It's named after the 17th-century British physicist Robert Hooke who made the discovery, according to Hooke's Law. Essentially, this law describes a linear relationship where the amount of stress applied to a spring is proportional to the force applied to it.     Determine the length of the constant force spring Constant force springs differ from traditional helical wound springs. First, they are made from high-volume, thin pre-stretched stainless steel strips that are coiled into flat spirals. In contrast, coil springs are not flat, thin steel strips, but are...

Application of power spring in draw-wire encoder

Time:2022-9-14

A draw-wire encoder, also known as a string potentiometer, pull wire position sensor, cable extension displacement sensor, or yo-yo potentiometer. It is a cable driven position or displacement sensor for linear position measurement and velocity using a flexible cable (wire) and a spring loaded spool.   The string pot or cable extension sensor is composed of four main components in the shell: 1. High strength stainless steel cable (rope or steel wire rope); 2. Equal diameter spool (drum); 3. Power spring with high torque and long service life; 4. Rotary potential precision sensor.   In the shell of the sensor, a soft high-strength stainless steel cable is tightly wound on a precision machined cylindrical drum (or spool) with constant diameter, which rotates with the winding and unfolding of the measuring cable. In order to maintain the tension and retraction of the steel wire, the spring is connected to the drum. Then connect the spool to the shaft of the rotary potential precision sensor (or encoder). When the sensor string extends linearly with the moving object, it will cause the roller and sensor shaft to rotate.   For displacement or position measurement, the main body of the sensor is installed on the fixed surface, and the end of the flexible cable is connected to the moving object. When the object changes its position, the cable unfolds and reels and the rotating spool drive the shaft of the sensing device, generating an electrical signal proportional to the linear extension or displacement of the cable. For speed measurement, a tachometer is required. The power spring is mainly used in the equipment of...

How to make the constant force spring produce more force

Time:2022-9-15

A common way to install a constant force spring is to use two or more springs to obtain greater force in a narrow space. This may be necessary if the diameter or width of a single spring exceeds the allocated space, but there is room to add multiple smaller springs. When engaging multiple springs, a much smaller spring design can be used. The total force is the sum of the spring forces.       When combining springs, it is recommended to use the same spring for multiple installation. Compared with using two or more completely different springs to realize the load, this method is more economical and the design will be simpler. Since the force is the sum of the springs, the total force required should be evenly distributed between the number of springs used. We will discuss three different mounting methods for use with multiple springs.         1、 Back to back method The back-to-back method uses two springs that expand in opposite directions and produce a very stable extension. The distance between the springs should be far enough to allow the spring material to bend naturally so that the component will not bind when retracted.         2、 Series method When two or more springs are used, it is also a very common practice to install springs in series. Although this method does not have the stability of the back-to-back method, space availability usually determines the use of this design. 3、 Laminar flow method Laminating springs together is the third option in this series. The term...

Constant force spring for realizing smooth movement of CT scanning table

Time:2022-9-14

We are familiar with CT scanner. Now when we go to the hospital for examination, we often hear the doctor say "take a film first". This film generally refers to CT. Doing CT is not only for the safety of patients, but also for the safety of doctors. CT is much clearer than X-ray film. At the same time, there are many diseases that cannot be seen on B-ultrasound and can be diagnosed by CT. At present, CT is the most widely used imaging examination under medical treatment and the most valuable examination for clinical information. When you go to take CT, you lie down on the scanning table, and the scanning table will automatically move smoothly and accurately locate the position. Have you ever thought about this problem because you want to relieve tension? The CT scanner table can move smoothly and accurately because of the role of the constant force spring in it. Some little friends may not know what the constant force spring is. When it comes to the spring, everyone must think it is the traditional linear spring. In fact, it is not. Constant force spring is made of stainless steel strip. The high-strength steel strip is shaped through specific spring production equipment. When it is straightened by external force, the spring will naturally roll back and produce elastic force, However, to achieve our goal, we can return to our designated starting point after the shift. The constant force spring can achieve extremely high elastic output in a very small device space. Its function can be applied to products requiring linear motion such...

Application of variable force springs in fireplace up-down slide door

Time:2022-9-14

Fireplaces are freestanding or wall-mounted indoor heating devices, powered by combustible materials, with internal chimneys, originating from Western homes or palace heating facilities. Because its fuel is a renewable resource, modernized and improved, it is still commonly used in the West, and is especially popular among the higher education class, which advocates environmental protection. Fireplaces can also be installed in ordinary homes, and are perfectly achievable for small flats. The fireplace in modern homes is certainly not the firewood burning in the living room of a large villa that we see in the movies and TV, burning a fire and emitting the sound of a "blazing" star.   In colder climates, the fireplace has always been the main feature of a home, as it gives people warmth to survive the long winter hands. The feeling of warmth from the baking, and the jumping and flickering flames, even today, still make people feel happy in cold weather. The warmth of a fireplace is incomparable to that of an air conditioner, and I'm not talking about the psychological effect, which is in fact the case. Compared to air conditioners, fireplaces heat up quickly and the warmth of a real fire is comforting and relaxing. The variable force springs used in the fireplace up-down sliding doors because when the door is closed, the spring force is less than the weight of door; while the door in middle stroke, the spring force is equal to the door weight. When fully open, the spring exerts force greater than the door weight to secure the door does not...