What aspects of automatic universal spring machine adjustment need attention?

 Automatic universal spring machine adjustment needs to pay attention to the following aspects, otherwise it may cause problems with the machine. The first is the adjustment of the external warp of the spring, which is mainly used to adjust the mechanism of the external warp. You only need to adjust the ejector rod in or out. This adjustment is relatively simple.

         The second is the adjustment of the feeding length and the total number of turns. Generally, the feeding length can be controlled by the number of gears and the number of gears. This depends on the spring expansion length.

          The adjustment of free height, pitch, and number of turns, and the adjustment of spring length, actually include two kinds of inner push and outer pitch. The inner push needs to adjust the inner push straight rod to drive the ejector pin to push the spring away. The outer pitch is generally driven by the cam to drive the pitch knife and ejector spring so that the spring can be opened.

          The adjustment of the tightness between the support rings requires that the coils at both ends should be tight when the compression spring is rolled, and there is a specific requirement for the close length. The adjustment of the cutting mechanism is followed. For the cutting mechanism, a cutter is usually used to work with the core by a vertical cutting method. Therefore, the size of the mandrel can be increased, and the spring coil can be supported at the same time.

What aspects of automatic universal spring machine adjustment need attention?

 Automatic universal spring machine adjustment needs to pay attention to the following aspects, otherwise it may cause problems with the machine. The first is the adjustment of the external warp of the spring, which is mainly used to adjust the mechanism of the external warp. You only need to adjust the ejector rod in or out. This adjustment is relatively simple.

         The second is the adjustment of the feeding length and the total number of turns. Generally, the feeding length can be controlled by the number of gears and the number of gears. This depends on the spring expansion length.

          The adjustment of free height, pitch, and number of turns, and the adjustment of spring length, actually include two kinds of inner push and outer pitch. The inner push needs to adjust the inner push straight rod to drive the ejector pin to push the spring away. The outer pitch is generally driven by the cam to drive the pitch knife and ejector spring so that the spring can be opened.

          The adjustment of the tightness between the support rings requires that the coils at both ends should be tight when the compression spring is rolled, and there is a specific requirement for the close length. The adjustment of the cutting mechanism is followed. For the cutting mechanism, a cutter is usually used to work with the core by a vertical cutting method. Therefore, the size of the mandrel can be increased, and the spring coil can be supported at the same time.

Application of water based pu glue on automobile dashboard

         Automotive interior decoration water-based applications have become the mainstream of environmental protection, and now many product parts, such as car seats, car door guards, and car dashboards, have been applied with relevant environmentally-friendly water-based PU adhesives.

        The instrument panel is an assembly of various indicator instruments and ignition switches installed in the cab. Generally, it is installed on the instrument panel or as an accessory on the steering column. This technical function is artistic The functions of vacuum blister molding instrument panel are technologies that are often used by domestic and foreign passenger cars. The instrument panel using water-based PU adhesive not only has the advantages of good instrument panel cushioning, high safety, strong aesthetics, etc.

          In the case of water-based PU adhesives that are processed on the instrument panel, if the operating process conditions are not properly controlled, problems such as cracked skin, uneven thickness, unsatisfactory filling, and air bubbles will occur.

Water based pu glue can be used in the interior decoration materials of vehicles. It has a high content, fast drying speed, good high temperature resistance, strong adaptability and excellent adhesion.

          Pure water-based PU adhesive does not contain solvents such as toluene, xylene, ethyl acetate, etc., so it is not harmful to the general construction site environment, so it is generally beneficial to protect the health of the operator, and there is no toxic solvent residue in the finished product Water-based PU glue is relatively easy to clean, and overflow glue is easy to remove.

Garage Door Torsion Spring

What is a torsion spring

A torsion spring belongs to a coil spring. The ends of the torsion spring are fixed to other components. When other components rotate around the center of the spring, the spring pulls them back to the original position, generating torque or rotational force. The torsion spring can store and release angular energy or statically fix a device by rotating a force arm about the central axis of the spring body. These springs are usually close-packed with a pitch between the coils to reduce friction.

Torsion spring is the ultimate of the variant spring, from single torsion spring to double torsion spring special torsion spring, even the deformation of various torsion bars, which can be shaped according to design. Therefore, it is difficult to grasp the necessary information of the torsion spring when designing:
(1) Free length.
(2) Control diameter: (a) outer diameter, (b) inner diameter, (c) inner diameter of casing, or (d) outer diameter of round rod passed through.
(3) Wire size "wire diameter".
(4) Materials (type and grade).
(5) Number of turns: (a) total number of turns and (b) right-handed or left-handed.
(6) Torsion force: pounds deflected to a certain angle.
(7) Maximum deflection (angle from free position).
(8) The form of the end.
 

Garage door torsion spring

---

The torsion spring acts on the opening and closing stroke of the electric garage door. When the door is closed, the high-strength nylon wheel rotates around the galvanized tube of the spring's central shaft. The originally tightened spring naturally relaxes due to the generation of torque (or rotational force), helping to close the door. But when the door is closed, the corresponding spring is also tightening.Read More

When the door is opened, the tensioned spring naturally pulls the door body back to the initial position due to the effect of torque to achieve the purpose of assisting. Normally, such springs on the market are usually close-fitting. However, during the twisting process between the spring coils, they will naturally distort and deform, creating too much resistance, affecting the normal operation of the rolling shutter.

Therefore, according to long-term testing of electric garage door production plant parts, the spring coil spacing is adjusted to a width of 2mm to reduce friction and prevent them from generating resistance to rotation or external forces of rotation.
 

Garage door torsion spring installation parameters

---

1. The door is placed below (closed): one end of the torsion spring is fixed, and the other end is wound to the number of turns required for installation, then the adjusting end of the automatic garage door torsion spring is pushed to the fixed end, and the adjustment method is tightened. Blue screws.

    Number of turns of torsion spring = door height ÷ wire wheel circumference + pre-tightening 0.5 to 1 turn.
2. Put the door on it (ie open state): fix one end of the torsion spring, lengthen the torsion spring along the adjusting end by 60 ～ 120mm, pre-tighten 0.5 ～ 1 turn, and finally fix the torsion spring adjusting end to the shaft with screws on. Why is the torsion spring stretched? Because the torsion spring's outer diameter will become smaller and the number of turns will increase during the lifting process of the door body, therefore, the lengthened spring will have a certain gap to facilitate the lifting of the door body.
 

Garage door torsion springs are mechanical parts that work by using elasticity, and are generally made of spring steel. It is used to control the movement of the parts, alleviate the impact or vibration, store energy, and measure the force. It is widely used in computers, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles, etc.

The main equipments of production equipment are: digitally controlled multi-function computer coil spring machine, mechanical automatic coil spring machine, spring grinding machine, heat treatment equipment, large-scale hot coil spring production line, and quality testing instruments.

Comparison of different hardness indexes of stainless steel pipe

 Stainless steel pipe generally use three Brinell, Rockwell, Vickers hardness indicators to measure their hardness.Brinell hardness is widely used in stainless steel pipe standards. Generally, the indentation diameter can indicate the hardness of the material, which is very intuitive and convenient, but this hardness is not suitable for harder or thinner steel and steel pipes.

           The Rockwell hardness test of stainless steel pipes is similar to the Brinell hardness test, and they are performed by the indentation test method. The difference is that this is required to measure the indentation depth. The Rockwell hardness test is generally a widely used method. Among them, HRC is second only to Brinell hardness HB in the steel pipe standard. Therefore, Rockwell hardness is generally suitable for measuring very soft or extremely hard metal materials. It can make up for the shortcomings of the Brinell method and is simpler than the Brinell method. It can read the hardness value directly from the dial of the hardness machine. But because the indentation is small, the hardness value is not as accurate as the Brinell method.

          The Vickers hardness test of stainless steel pipes also uses the indentation test method, which can be used to determine the hardness of very thin metal materials and surface layers. It has the advantages of the Brinell and Rockwell methods, and can overcome their basic shortcomings, but it is not as simple as the Rockwell method, so the general Vickers method is rarely used in steel pipe standards.