Operation and maintenance of hose fitting crimping machine
Time of issue:
2021-12-07
Operation and maintenance of hose fitting crimping machine Pressure adjustment: The maximum pressure of the withholding machine system Z is 31.5Mpa, which is adjusted by the overflow valve. The clockwise adjustment pressure increases, and the counterclockwise adjustment pressure decreases (it has been adjusted at the factory, and can be adjusted if necessary). Mold opening speed adjustment: The speed of Dies opening speed is controlled by the diverter valve and adjusted clockwise. The opening speed is increased, and the opening speed is adjusted counterclockwise. The best value is not more than 10Mpa (it has been adjusted before leaving the factory, you can adjust it yourself if necessary). 1. Crimping operation of crimping machine 1. When the crimping machine is used for the first time, it should be crimped 20 to 30 times without load, and it can be used after observing that all parts are normal. 2. When the crimping machine is used in winter, it should be crimped 20 to 30 times without load to increase the oil temperature. 3. Press the open button, after the mold base is opened, select the corresponding mold to install on the mold base according to the specifications of the hose to be crimped, and adjust the micrometer scale. 4. Place the hose with the joint in the proper position in the press head, so that the entire length is crimped at one time. 5. Press the crimping button to execute crimping operation until the crimping head stops crimping and automatically opens the mold. 6. Take out the crimped hose assembly and use a vernier caliper to check the outer diameter of the crimped joint jacket. If it does not match the parameter table, fine-tune the scale of the micrometer until the crimping of the next hose meets the requirements. 2. Pressure tube test example Crimping Ф19mm four-layer steel wire hose (BNTFLEX 4sp standard) From the hydraulic tubing crimping parameter table, it is found that the outer diameter of the Ф19mm four-layer steel wire hose joint jacket is 37mm before crimping and 33.5mm after crimping. The inner diameter of the mold should be Ф33mm, and the corresponding micrometer scale is 3. Install the Ф33mm mold on the mold base, rotate the micrometer scale to 3 places, peel the rubber tube and assemble it with the joint. After the crimping is completed, the outer diameter of the connector jacket is measured to be the crimped value 33.5mm in the crimping parameter table, and then the crimping is completed. If the outer diameter does not match after crimping, trim the micrometer and crimp a hose. When crimping the hose joint: Too much crimping size, the rubber layer in the hose is crushed, causing oil leakage; too small crimping size, causing oil leakage and being flushed out of the joint by hydraulic pressure. Be sure to grasp a reasonable degree of crimping, based on the shrinkage of the inner hole of the connector core, the compression of the national standard connector is 0.1~0.4mm, and the compression of the ordinary connector is 0.1~2mm. Due to the different manufacturers of hoses and joint jackets, for example, most hose manufacturers in the north use GB standards, the south uses 602 standards, and foreign SAE standards. The specific dimensions and materials of hoses and joints in each factory may be different, so the data of the withholding parameter table For reference only, the specific withholding size should be based on the pressure test. Three, pressure pipe matters needing attention 1. When crimping, place the joint in the center of the mold as much as possible, and do not press on the hexagonal nut. 2. Prevent tools and other foreign objects from entering the press tube head. 3. Every time after the work is finished, the eight mold bases must be opened to the degree of Z, so that the spring can be in the opened state and the spring can be maintained, and the oil cylinder is also in the pressure relief state to extend the life of the oil seal. 4. Maintenance of pipe buckling equipment 1. The hydraulic oil in the oil tank should be replaced when it exceeds the time limit specified by the hydraulic oil manufacturer, or visually check the oil level gauge. If the hydraulic oil is oxidized and darkened, it must be replaced. 2. Frequently inject anti-wear lubricant into the moving surface of the mold base. 3. During non-pressing machine working hours, please cover the dust cover to prevent sundries from falling into the mold base.
Operation and maintenance of hose fitting crimping machine
Pressure adjustment: The maximum pressure of the withholding machine system Z is 31.5Mpa, which is adjusted by the overflow valve. The clockwise adjustment pressure increases, and the counterclockwise adjustment pressure decreases (it has been adjusted at the factory, and can be adjusted if necessary).
Mold opening speed adjustment: The speed of Dies opening speed is controlled by the diverter valve and adjusted clockwise. The opening speed is increased, and the opening speed is adjusted counterclockwise. The best value is not more than 10Mpa (it has been adjusted before leaving the factory, you can adjust it yourself if necessary).
1. Crimping operation of crimping machine
1. When the crimping machine is used for the first time, it should be crimped 20 to 30 times without load, and it can be used after observing that all parts are normal.
2. When the crimping machine is used in winter, it should be crimped 20 to 30 times without load to increase the oil temperature.
3. Press the open button, after the mold base is opened, select the corresponding mold to install on the mold base according to the specifications of the hose to be crimped, and adjust the micrometer scale.
4. Place the hose with the joint in the proper position in the press head, so that the entire length is crimped at one time.
5. Press the crimping button to execute crimping operation until the crimping head stops crimping and automatically opens the mold.
6. Take out the crimped hose assembly and use a vernier caliper to check the outer diameter of the crimped joint jacket. If it does not match the parameter table, fine-tune the scale of the micrometer until the crimping of the next hose meets the requirements.
2. Pressure tube test example
Crimping Ф19mm four-layer steel wire hose (BNTFLEX 4sp standard)
From the hydraulic tubing crimping parameter table, it is found that the outer diameter of the Ф19mm four-layer steel wire hose joint jacket is 37mm before crimping and 33.5mm after crimping. The inner diameter of the mold should be Ф33mm, and the corresponding micrometer scale is 3. Install the Ф33mm mold on the mold base, rotate the micrometer scale to 3 places, peel the rubber tube and assemble it with the joint. After the crimping is completed, the outer diameter of the connector jacket is measured to be the crimped value 33.5mm in the crimping parameter table, and then the crimping is completed. If the outer diameter does not match after crimping, trim the micrometer and crimp a hose. When crimping the hose joint: Too much crimping size, the rubber layer in the hose is crushed, causing oil leakage; too small crimping size, causing oil leakage and being flushed out of the joint by hydraulic pressure. Be sure to grasp a reasonable degree of crimping, based on the shrinkage of the inner hole of the connector core, the compression of the national standard connector is 0.1~0.4mm, and the compression of the ordinary connector is 0.1~2mm. Due to the different manufacturers of hoses and joint jackets, for example, most hose manufacturers in the north use GB standards, the south uses 602 standards, and foreign SAE standards. The specific dimensions and materials of hoses and joints in each factory may be different, so the data of the withholding parameter table For reference only, the specific withholding size should be based on the pressure test.
Three, pressure pipe matters needing attention
1. When crimping, place the joint in the center of the mold as much as possible, and do not press on the hexagonal nut.
2. Prevent tools and other foreign objects from entering the press tube head.
3. Every time after the work is finished, the eight mold bases must be opened to the degree of Z, so that the spring can be in the opened state and the spring can be maintained, and the oil cylinder is also in the pressure relief state to extend the life of the oil seal.
4. Maintenance of pipe buckling equipment
1. The hydraulic oil in the oil tank should be replaced when it exceeds the time limit specified by the hydraulic oil manufacturer, or visually check the oil level gauge. If the hydraulic oil is oxidized and darkened, it must be replaced.
2. Frequently inject anti-wear lubricant into the moving surface of the mold base.
3. During non-pressing machine working hours, please cover the dust cover to prevent sundries from falling into the mold base.
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