A plastic fuel tank trimming system and a method for trimming plastic fuel tanks

Abstract

The invention relates to a trimming mechanism of a plastic oil tank and a method of trimming the plastic oil tank. A big robot, a barcode printer and a weighing table are located at the right side of a trimming conveying line, an oil tank grasping mechanism capable of grasping the plastic oil tank is arranged on the end of a mechanical arm of the big robot, the barcode printer and the weighing table are respectively arranged at the front side and the back side of the big robot, a small robot is arranged on a position, which is opposite to the big robot, at the left side of the trimming conveying line, a trimming knife capable of cutting trimmings of the plastic oil tank is arranged on the end of a mechanical arm of the small robot, an oil tank trimming table and an oil tank pre-trimming table which can be used for fixing the plastic oil tank are arranged above the trimming conveying line, the oil tank trimming table and the oil tank pre-trimming table are located between the big robot and the small robot, and are arranged in parallel along a length direction of the trimming conveying line. When one plastic oil tank is trimmed by the small robot, grasping, barcode pasting and even weighing of another plastic oil tank can be completed by the big robot, and the trimming speed is quick, so that the production period is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a manufacturing equipment of a plastic fuel tank, in particular to a trimming system of a plastic fuel tank. The invention also relates to a method for trimming plastic fuel tanks. Background technique [0002] The plastic fuel tank is formed by blow molding the parison in the cavity of the left and right half molds. The formed fuel tank has overflow around the parting line, forming a parting line flash; in addition, the welded nozzle on the side wall of the fuel tank Nozzle flash is also present. The flash needs to be removed by the trimming cutter mechanism. The traditional cutting method is to manually hold the plastic fuel tank and align the flash edge with the trimming tool for cutting. This trimming method has low production efficiency, high labor intensity and high skill requirements for operators; and the temperature of the plastic fuel tank just after forming is high, which is inconvenient to operate. The product i...

AI Technical Summary

Problems solved by technology

[0005] The plastic fuel tank blow molding production line produces a semi-finished fuel tank in about 93 seconds, and then the large robot completes the trimming operation. Before trimming, the semi-finished fuel tank must be grabbed and marked with a barcode. It takes more than 100 seconds to take, paste the barcode, trim and weigh the work, so the semi-finished fuel tank on the production line will be in a waiting state for a period of time, which affects the overall efficiency of the production line

Among them, the trimming action takes 70 seconds. Due to the large total weight of the fuel tank grabbing mechanism installed on the big robot and the semi-finished product of the fuel tank, the load of the large robot is high, and the speed cannot be increased when the semi-finished product of the fuel tank is clamped and rotated; High-load work will affect the life of the robot motor, and the after-sales maintenance cost is very expensive; and if the rotation speed of the plastic fuel tank is increased, the trimmed flash will easily wrap around and stick to the plastic fuel tank when the plastic fuel tank itself rotates, causing the product to be scrapped

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