Analysis and solution of the cause of automatic reversal when the flip-board car door is closed

Analysis and solution of the cause of automatic reverse blasting when the flip-board car door is closed

Kunming Haiton flip car doors are popular among domestic and foreign villa owners and self-built house users for their convenience, practicality, and aesthetics. They are widely used in modern courtyards and commercial venues. However, during the use process, many users will respond to the automatic reflex problem during the closing of the flip-top warehouse doors of other factories. This not only affects the normal use of the warehouse doors, but may also bring safety hazards. Today, the editor has taken the big truck to deeply analyze the reasons for this problem from the structure design, installation technology, protection device, usage and maintenance conditions of the flip-board car door, and proposed a positive solution.

Structural design and working principle of flip-board car door

Structure composition

The flip-board car door is mainly composed of door panels, tracks, drive systems, balance systems, control systems, etc. The door panels of Kunming Haiton Car Door are usually designed with clamp protection, made of multiple metal plates connected, and folded and turned through the chain. The track is installed on both sides of the door walls of the cart, guiding the door panels to move up and down. Drive systems generally use GENIE motors and Hyton motors to provide power to enable and close the door panels. The balance system uses springs and other devices to balance the weight of the door, reduce the load on the motor, and extend the service life of the vehicle door. The control system includes remote control, wall switch, mobile phone remote control, vehicle automatic identification, etc., and is used for intelligent operation of operating the warehouse door.

How to work

When the user presses the switch button on the remote control or control box, the control system issues a signal to the drive motor, the motor starts to rotate, and moves up and down along the track through the wire rod, such as steel wire rope, torsion spring, motor and other transmission devices. Under the action of the balance system, the door plate rises or falls flatly. When the door plate reaches the top or bottom position, the motor limit position, the door stops moving, and the warehouse door is turned on or off.

Analysis of the causes of automatic anti-reflection during closing

Unreasonable structure design

Door connection problem: The height of the door panel design and the dimensions between the brakes do not meet the requirements of strict joints, and the door of the vehicle door cannot realize the door connection. In addition, the quiet wheel and the installation position of the chain are unreasonable, such as insufficient strength of the chain and loose steel wire slitting connections, etc. During the door panel closing process, the door panel may be deformed or stuck due to uneven stress, thereby touching the resistance and reverse mechanism of the generator.

Digital design defects: The shape and size of the track do not match the door panel, or the installation accuracy of the track is not sufficient, especially the production of the track and the door panels are inconsistent, which causes the friction between the door panels and the tracks during operation, which is prone to jamming, causing automatic rebound.

Balance system mismatch:If the spring of the balance system is not selected properly, or the spring will experience fatigue, cracking, and inadequate strength after long-term use, it will cause the weight of the door plate to be effectively balanced. The motor needs to bear too much load during the shutdown process. When the load exceeds a certain closing value, the parking door will automatically reverse.

Installation technical problems

Installation technical problemsWhen installing a rail, if the level of the rail is not guaranteed, the door will appear in one side higher and the other lower during operation, that is, the door plate is often deviated during use, which will cause uneven friction between the door plate and the rail, which is prone to jamming and rebound.

Inappropriate installation of the drive system: The installation position of the drive motor is incorrect, or the connection between the motor and the transmission device is not firm, especially the motor driving force is insufficient, which will cause vibration and offset during operation, affecting the normal operation of the door panel and causing automatic reversal.

Instrument installation error:The flip-board car door is usually equipped with safety protection devices such as red external sensors to detect whether there are any barriers at the door. If the sensor is installed incorrectly, or the sensor\’s sensitivity is not set properly, it may be possible to misjudgment at the door, causing the vehicle door to automatically reverse during the closing process.

Protect device failure

Red external sensor failure:Red external sensor is one of the most commonly used safety protection devices in flip-board warehouses. If the transmitting or receiving end of the sensor is covered with pollutants such as dust and oil, it will cause the signal transmission of the sensor to be damaged, and it is impossible to accurately determine whether there are barriers at the door, thereby causing automatic reversal. In addition, quality problems of the sensor itself, such as component aging and damaged parts, can also cause abnormal work.

Faulty pressure sensor: Some flip-board car doors are also equipped with pressure sensors to detect the resistance that the door panels are exposed during the closing process. When the resistance exceeds the setting value, the car door will automatically rebound. If the sensitivity of the pressure sensor is set too high, or the sensor fails, it will automatically rebound during the normal closing process due to errors in determining that the resistance is too large.

Using poor maintenance

Laboring regular maintenance:In the long-term use of the flip-board car door, components such as tracks, chains, transmission devices will increase in operation due to wear and dust accumulation. If the user does not regularly maintain the warehouse door, such as cleaning the railway tracks, applying lubricant, etc., it will affect the normal operation of the warehouse door and increase the probability of automatic rebound.

Use inappropriate use: When a user uses a flip-flop car door, if the car door is opened and closed frequently and quickly, or if the car door is forced to block it during the car door operation, it will cause damage to various parts of the car door and cause automatic reversal. The occurrence of faults such as flashing occurs. Especially during the decoration period, some workers often use manual mode to violently turn off, which causes the limits of the warehouse door to be invalid and also causes the electric mode of the warehouse door to be unable to be used normally. In addition, if a slut is placed around the warehouse door, the shadow will beThe normal operation of the sensor will also cause automatic reversal.

Solution

Optimized structure design

Optimized design plan:Select a professional designer to measure the size of the warehouse door and ensure that the security technology is too hard. In the projects undertaken by the Kunming Haiton Car Door, the core size will usually be re-scored at the venue first, and then according to the precise data design plan, the special thing to note is the dimensions of the middle and inner parts, and then place an order to the production center. The shape and size of the track are reasonably designed according to the size and weight of the door plate, and the driving system that matches the motor and torsion springs to improve the matching degree between the track and the door plate. When installing a rail, the installation accuracy of the rail is strictly controlled to ensure the horizontality and verticality of the rail, and reduce the friction between the door panel and the rail.

Adjustment balance system: According to the actual situation of the car door, correctly select the spring specifications of the balance system. During the process of adjusting the torsion spring in the Hayton car door in Kunming, it is generally pre-short for two more times to increase the pre-short force of the torsion spring, so that manually lifting the door plate during power shutdown is more labor-saving. During use, it is recommended to check the working status of the spring regularly, if the spring is found to be fatigued, If the breakage and other conditions are changed in time. At the same time, the method to check the strength of the torsion spring is to check whether the steel wire is loose, whether the door plate is running off, and whether it is in a tight state or in a closed state, the steel wire wire is always in a tight state. This is the only way to ensure that the door plate is always in a balanced state during the operation.

Proper installation process

Ensure the installation level of the track: Before installing the rail, use tools such as horizontal gantry to accurately measure the installation location to ensure that the horizontal error of the rail installation is within the allowable range. During the installation process, use fixing parts such as expansion bolts to securely fix the rail to the wall.

Installing the drive system correctly:According to the installation instructions of the drive motor, accurately determine the installation location of the motor, and ensure that the connection between the motor and the transmission device is firmly. After installation is completed, adjust the drive system and check the power.Whether the operation of the machine is stable, there is no abnormal vibration and noise.

Rational installation of sensors: According to the actual situation of the vehicle door, select the appropriate sensor installation position to ensure that the sensor can accurately detect whether there are obstacles at the door. During the installation process, we deliberately avoid direct sunlight and strong electromagnetic striking. At the same time, according to the actual use requirements, the sensor\’s sensitivity is reasonably adjusted.

Repair the protection device in time

Cleaning and maintaining red external sensors:Regularly use drying software to clean the transmitting and receiving ends of the red external sensors to remove dust, oil and other pollutants on the surface. Check whether the sensor connection line is loose and repair it in time if there are any problems. If the sensor fails, the new sensor should be replaced in time. If the signal transmitter and receiver board are incorrectly positioned, it needs to be deviated in a timely manner.

Check and adjust the pressure sensor: Check the working status of the pressure sensor regularly to ensure that its sensitivity is set reasonably. If a pressure sensor is found to be incorrectly judged, its sensitivity should be adjusted according to the actual situation. At the same time, check whether the installation position of the pressure sensor is correct, and there are no damage.

Strengthen use maintenance

Regular maintenance:It is recommended that users carry out comprehensive maintenance of the flip-floping car door every once in a while, including cleaning the carriage, chains, transmission devices and other components, applying appropriate amount of lubricating oil, check whether the connections of each component are firm, without wear, deformation, etc. Through regular maintenance, the running resistance of the carriage door can be effectively reduced and the life of the carriage door can be extended.

Use correctly: When users use flip-flop car doors, they should avoid opening and closing the car doors frequently and quickly, and maintain a normal operating rhythm as much as possible. During the car doors, do not forcefully prevent them from closing, so as not to deal with the car.The warehouse caused damage. At the same time, keep the environment around the warehouse door intact and avoid placing miscellaneous objects at the door, which affects the normal operation of the sensor.

Conclusion

Automatic reflex during the closing process of the flip-board car door is a common problem, and the reasons involve structure design, installation technology, protection device, usage and maintenance. By optimizing structure design, standardizing installation procedures, timely repairing protection devices and enhancing usage and maintenance, this problem can be effectively solved, ensuring the normal operation of the flip-board car door, and improving user experience and safety.

In actual applications, users and installation maintenance personnel should pay attention to the daily maintenance and maintenance of the warehouse, discover and solve problems in time, and avoid major safety hazards caused by minor failures. At the same time, the warehouse production factory should constantly improve product design and manufacturing technology, strengthen the installation and maintenance technology training of employees, improve the stability and reliability of the products, and provide users with better products and services.