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      Analysis of three common problems of bending machine die

      CREATE_TIME:2018-12-28 VIEWS:1699

        1, bending machine mold damage Bending machine mold damage is refers to the mold cracking, breaking, expansion, etc., to deal with the problem of bending machine mold damage, must be from the bending machine mold design, manufacturing process and the use of mold to find the reason. First of all to review the bending machine mold manufacturing materials are appropriate, the corresponding hot place buried technology is reasonable.Usually, the heat treatment process of mold material has a great influence on it.If the quenching temperature of the mold is too high, the quenching method and time are unreasonable, as well as the tempering times and temperature, the choice between the elbow is not appropriate, will lead to the bending of the bending machine mold into the production of damage.The size or depth design of blanking hole is not enough, which is easy to block the slot hole and cause the blanking plate damage.The spring force design is too small or the equal-height sleeve is not high, which will make the spring break and the blanking plate tilt.Cause overlap impact, damage parts.Improper punch fixing or insufficient screw strength.Can cause a punch to fall or break. Bending machine mold use, parts position, direction and other installation error or bolt fastening is not good.Working height adjustment is too low, guide column lubrication is insufficient.Failure of feeding equipment, abnormal press, etc., will cause mold damage.If there is a foreign body into the mold, parts overlap, waste blockage and other conditions not timely treatment, continue to process production, it is easy to damage the mold blanking plate, punch, under the template and guide column.

        2, the mold In the process of bending, once the bending machine die is not flexible, or even stuck, it must immediately stop production, find out the cause of the die, troubleshooting.Otherwise, it will expand the failure, leading to the bending machine mold damage. The main causes of mould sticking are: bad mould guide and incline.Or there is a foreign body between the template, so that the template can not be pasted flat;Mold strength design is not enough or uneven force.Cause mold deformation, such as mold base, template hardness, thickness design is too small, easy to impact by external deformation;The position of the mould is not installed correctly, and the positioning error of the upper and lower mould is out of tolerance.Or the accuracy of the press is too bad, so that the mold interference;The strength of the punch is not enough and the position of the big and small punch is too close, which makes the lateral force of the die unbalanced.At this time, the punch strength should be increased to strengthen the guide and protection of discharge plate.

        3, bending machine mold damage and maintenance Bending production mold cost high.Usually the cost of bending machine mold parts of the total cost of 1/5-1/

        4.This is because, in addition to mold manufacturing difficult, high cost.After the production of mold repair and grinding maintenance costs are also high, and the original cost of the mold only accounted for about 40% of the cost of the entire mold.Therefore, timely maintenance of mold, mold damage to prevent, can greatly reduce the cost of bending production mold.

       

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