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Overview of basic forms of compression cylinder in scrap iron briquetting machine
Reads: 536
Times: 2022-06-12
The compression cylinder is the force transmission and motion accuracy of the scrap iron pressing block mechanism, and it is the heart that directly affects all functions and quality molding. It performs the compression cylinder components and realizes the movement of moving the beam up and down according to the pressure components, so it is a high-pressure cylinder.
The structure of the compression cylinder of the scrap iron briquetting machine has three types: plunger type, piston type and inverted type..
1. The plunger cylinder is a single acting cylinder, which can only be pressurized from one direction of the scrap iron pressing block equipment, and a separate oil return cylinder is required. Together, plunger cylinders can also be called abbreviated cylinders. Its shape is flange tube shape, the flange part is pressed towards the upper beam, and the two are sealed with an "O" ring. For the sake of safety, the manufacturer of the briquetting machine will install forged steel parts at the bottom of the upper beam to separate the high-pressure oil from the cast steel upper beam, and screw the fixing screws on the lower plane of the upper beam through the flange. The stress is simple and the processing technology is good. However, the disadvantage is that the oil cylinder is installed outside the upper beam, which increases the height of the whole machine.
2. Piston cylinder is a kind of cylinder in double acting and scrap iron pressing equipment, which can realize the movement in two directions without setting the cylinder back alone. This is a traditional way. Complete cylinder bottom, cylinder barrel and flange. When installing, the flange shall be fastened on the lower plane of the upper beam. Because of its complex stress and poor processing technology, it is gradually eliminated.
3. Reverse cylinder compression cylinder: generally, the cylinder is installed on the upper beam, and the piston is connected with the movable beam. Now the large tonnage briquetting machine has the trend of reverse cylinder. The inverted cylinder is connected with the upper beam, and the column is connected with the movable beam. The working principle is the same as that of the general piston cylinder. It has many advantages, and the cylinder beam structure is single. That is to say, the cylinder and the upper beam are integrated. The whole structure is compact and the frame height is low. However, because the whole upper beam is a large casting, under the action of high-pressure oil, it is difficult to avoid the defects such as looseness, shrinkage and leakage of the casting. Therefore, most presses add steel sleeves to the inner holes of the cylinders.
The structure simplifies the structure of the upper crossbeam, greatly reduces the processing difficulty, and does not need to process the oil cylinder hole on the upper crossbeam, which can improve the strength of the upper crossbeam and reduce the overall dimension of the host. Together, the stress area of the movable beam of the pressing cylinder also changes the stress condition of the movable beam, relatively improves the rigidity of the movable beam, reduces its stress and deformation, makes the scrap iron briquetting machine more uniform in the pressing force, and is conducive to the forming of the finished product.
The structure of the compression cylinder of the scrap iron briquetting machine has three types: plunger type, piston type and inverted type..
1. The plunger cylinder is a single acting cylinder, which can only be pressurized from one direction of the scrap iron pressing block equipment, and a separate oil return cylinder is required. Together, plunger cylinders can also be called abbreviated cylinders. Its shape is flange tube shape, the flange part is pressed towards the upper beam, and the two are sealed with an "O" ring. For the sake of safety, the manufacturer of the briquetting machine will install forged steel parts at the bottom of the upper beam to separate the high-pressure oil from the cast steel upper beam, and screw the fixing screws on the lower plane of the upper beam through the flange. The stress is simple and the processing technology is good. However, the disadvantage is that the oil cylinder is installed outside the upper beam, which increases the height of the whole machine.
2. Piston cylinder is a kind of cylinder in double acting and scrap iron pressing equipment, which can realize the movement in two directions without setting the cylinder back alone. This is a traditional way. Complete cylinder bottom, cylinder barrel and flange. When installing, the flange shall be fastened on the lower plane of the upper beam. Because of its complex stress and poor processing technology, it is gradually eliminated.
3. Reverse cylinder compression cylinder: generally, the cylinder is installed on the upper beam, and the piston is connected with the movable beam. Now the large tonnage briquetting machine has the trend of reverse cylinder. The inverted cylinder is connected with the upper beam, and the column is connected with the movable beam. The working principle is the same as that of the general piston cylinder. It has many advantages, and the cylinder beam structure is single. That is to say, the cylinder and the upper beam are integrated. The whole structure is compact and the frame height is low. However, because the whole upper beam is a large casting, under the action of high-pressure oil, it is difficult to avoid the defects such as looseness, shrinkage and leakage of the casting. Therefore, most presses add steel sleeves to the inner holes of the cylinders.
The structure simplifies the structure of the upper crossbeam, greatly reduces the processing difficulty, and does not need to process the oil cylinder hole on the upper crossbeam, which can improve the strength of the upper crossbeam and reduce the overall dimension of the host. Together, the stress area of the movable beam of the pressing cylinder also changes the stress condition of the movable beam, relatively improves the rigidity of the movable beam, reduces its stress and deformation, makes the scrap iron briquetting machine more uniform in the pressing force, and is conducive to the forming of the finished product.
