26-inch open mill|Best quality open mill

Open mixer safety issues: The open mixer is one of the equipment with the highest incidence of work-related accidents in the rubber mixing process. Its working environment is the reason for the increased risk factor compared with other mixing equipment. When operating the equipment, the operator Will often come into contact with materials and rollers. Most work-related injuries occur because the operator is brought into the roller by materials. In order to ensure the personal safety of engineers and operators, safety knowledge training and equipment with a high safety factor are essential.
Most traditional open mills are driven by chains. The biggest problem is that if an employee has an accident during operation, the machine will be protected by a power outage. However, after a simple power outage, the two rollers of the machine will be damaged. It will continue to rotate during the process of inertia, or use the holding brake system, which will still put employees in a situation of continuous injury, and it is very difficult to deal with. Safety accidents that occur on open mills may cause minor injuries to the hands due to crushing, while severe accidents may endanger the entire arm or even life.
Lina has been committed to research and development of equipment for a long time. The safety issues existing in the mill are the focus of Lina Machinery. Combining technologies from Germany and Japan for further research and development, Lina has obtained a number of patented technologies. According to the natural reaction of the human body, safety devices are installed on all aspects of the open mill. When the operator's hand is about to be clamped into the open mill, our safety devices will be touched due to the spontaneous combustion reaction of the human body. At this time, the open mill will Perform two commands immediately. The first is to stop immediately and there will be no inertial movement. The second is to immediately reverse a quarter turn. At this time, even if your fingers are slightly pinched, it will pour out. The large-scale open mill is designed with a belly-touch switch, which is adjusted according to the height of the human body and the length of the arms, so that the operator can only touch the working surface of the roller during operation. If the operator is pulled by the roller, he will touch this safety switch, which will cause an emergency stop. reverse.
Personal safety is more important than anything else. Allowing employees to work in a safe working environment is the most basic equipment requirement of Lina.
The problem of the open mill not being wear-resistant
Some customers said: After using our previous open mill for a long time, it felt that the gap between the rollers was getting bigger and bigger and could not be closed. This thinning effect was not good, and yours will appear. Is this a phenomenon? Some customers also said: The rollers of the open mill in the factory have become curved after being used for a long time, and the two sides are tight and the middle is loose. Will this happen to yours? Some customers even asked: Our rubber material is relatively hard, and short rollers may appear in some mills. Will yours do this?
Based on the feedback from many customers on some problems that often occur with open mill rollers, the answer given is that this is a problem with the material and finishing treatment of the rollers. The wear resistance of the rollers is not strong, resulting in long service life of the rollers. Serious wear problems occur, and the hardness of the roller is not enough, resulting in roller arcing. The toughness of the roller cannot cause short stick phenomenon. To solve these problems, the material of the roller is the core, which is one of the keys to determine the toughness and hardness of the roller. The surface + hour depth treatment is also one of the important keys to determine whether it is wear-resistant.
The problem of high energy consumption of open mills
Some customers asked why using your open mills of the same model saves more energy than buying other companies’ ones before. This issue was raised by the company's engineers after they returned to China for study in 2006. As the cost of industrial electricity gradually increases, if energy consumption is reduced, customers will save production costs, which will allow corporate equipment to occupy a wider market. market.
After two years of improvement, the first generation of new open mills was launched. In fact, there are three main reasons for high energy consumption. The first reason is insufficient torque. When the torque is insufficient, the motor needs to be increased to increase the torque. The second reason is that energy is lost rapidly during the conversion process, causing unnecessary energy waste. The third reason is that the resistance caused by the machine transmission and support structure increases energy loss.
The first generation of new models emerged when the three main reasons were integrated and solved
The fourth generation has been launched, and its energy consumption is reduced by more than 3% compared with traditional open mills (it varies according to different materials) . Lina's open mill uses customized accessories to minimize energy loss in the process of converting high speed into low speed and high torque. The speed ratio gear adopts hard tooth surface helical teeth, which mesh closely to reduce noise while transmitting energy stably.
The problem of low precision of the open mill
The open mill is mainly used for mixing and tableting of rubber materials. The precision of preformed tablets is high, and the shoulder pole effect or unevenness on both sides cannot occur. If the sheet is unevenly produced, the thickness of the material will be uneven after molding, which will cause unnecessary waste.
The main reason for the low accuracy of the open mill is the roller support shaft. At the same time, the accuracy and material of the roller will also affect the precision of the screw rod, etc.
The machine adopts manual digital display for accuracy issues. The roller production accuracy requirements are extremely strict. It will be tested for an hour before leaving the factory. At the same time, the precision and life of bearings are better than ordinary bearings. However, traditional open mill nylon sleeves or copper sleeves are early roller support accessories. They will deviate from the center distance after wear. This means that the accuracy requirements have been completely lost, and will It will have a great impact on mixing. At this time, it will need to be overhauled, causing a lot of cost waste. It will have no maintenance value after a long time.
The problem of high noise in open mills
According to a survey of tens of thousands of people by experts, general factory employees will suffer hearing damage if they are continuously exposed to noise above b for a long time. Over time, it can cause hearing impairment. If the noise frequency is above, it will cause temporary hearing impairment. If the noise frequency is between ~, it will cause permanent hearing impairment after long-term exposure.
Under high-frequency noise, it exceeds the tolerance limit of the hearing organ, causing pain in the ears, making people disgusted, impatient, low work efficiency, irritability, loss of appetite, indigestion and other symptoms.
The traditional open mill will produce a lot of noise during operation, like a train passing by, making the working environment of workers poor. Most customers report that the company uses traditional open mills and it is increasingly difficult to find operating masters, especially young employees.
The machine focuses on noise and combines the human body's adaptability to sound to reduce noise throughout the entire process from the motor, reducer, roller support to transmission device. The reducer is customized by Guomao to increase its service life and reduce noise at the same time. . There are only 3b during the operation of the small open mill.