Water heater liner automatic spray pickling pre-treatment and automatic enamelling drying firing system

Abstract

The invention provides an automatic spray prickling pretreatment, enamelling, drying and firing system for water heater inner containers. The system comprises an automatic spray prickling mechanism, an automatic enamelling robot mechanism and a drying and firing mechanism. Work-piece loading and / or unloading of at least one of the automatic spray prickling mechanism, the automatic enamelling robot mechanism and the drying and firing mechanism are / is achieved through robots. A gripper of each robot comprises a connecting base, a first rotating arm driven by a first drive mechanism, and a second rotating arm driven by a second drive mechanism, wherein the first rotating arm and the second rotating arm are arranged on the connecting base, a first pawl is arranged on the first rotating arm, a second pawl is arranged on the second rotating arm, and a shear type concentric locating part is arranged between the opposite sides of the first rotating arm and the second rotating arm and is unfolded or folded along with the first rotating arm and the second rotating arm so as to ensure that the central axes of the water heater inner containers are kept unchanged when the gripper of the robot grabs the water heater inner containers with the different diameters. The system has the advantages of achieving mixed production of the inner containers with the different diameters and the different heights, and being capable of improving the production efficiency, and lower in production cost.

Description

technical field [0001] The invention relates to the field of a water heater inner tank, in particular to a water heater inner tank automatic spray pickling pretreatment and automatic enamelling drying firing system. Background technique [0002] The production process of the water heater liner includes automatic spray pickling pre-treatment, automatic enamelling, and drying and firing processes. The traditional method of transferring the tank and the tank of the water heater is realized by manual operation; since the production process is in the form of an assembly line, the accuracy of the placement of the tank of the water heater is very high. The occurrence of offset will affect the smooth progress of the next process; and the manual operation itself has a large error, which is easy to make the position of the workpiece inconsistent and does not correspond to the next station, so the production efficiency of the water heater inner tank is also low . In order to improve ...

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Problems solved by technology

[0003] Due to the flaws in the design of the robot grabbing gripper, the above-mentioned robot grabbing gripper can only be applied to the transfer of the water heater liner of the same specification (that is, the same diameter) each time, but the diameter of the water heater liner is not unique. , because there are many types of water heater inner tanks with various specifications, and there are differences in diameters of water heater inner tanks of different specifications; After the completion, it is necessary to change another gripper suitable for the corresponding specification to carry out the transfer; and there are two adverse consequences caused by this: first, it is necessary to arrange the products of the same specification as far as possible in the production order. Together, one-off production

However, in fact, different customers have different requirements, and it is impossible for each customer to order large quantities of water heater inner tanks of the same specification at one time, which makes frequent production stoppages during the production process to replace different robot grippers. Claws, resulting in low production efficiency, and small batch orders cannot be scheduled in time

Second, by changing different grippers and exchanging programs to achieve the type change, the entire production process will waste a lot of time, which not only seriously affects the production process, but also increases the cost of equipment for different types of robot grippers , thus increasing the production cost

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