Door body foaming device

Abstract

The invention discloses a door body foaming device including a mold-opening manipulator and a door foaming fixture; by arranging a hoisting frame body, a driving oil cylinder for rotational opening of a mold, a mold opening hinge and the like are all mounted on the hoisting frame body; the hoisting frame body is hoisted to complete parallel rising and falling actions of an upper mold plate, after the upper mold plate rises and falls to a right place, the oil cylinder drives the upper mold plate to rotate, and a rotational mold opening action is completed; a supporting plate is adopted to make contact with mold opening idler wheels mounted on a fixture upper mold plate and hoisting grasping rods; during work, a fixture position is permitted to have a certain positioning error, an oil cylinder claw hook is not directly connected to the fixture upper mold plate but is fixedly connected to a hoisting former bracket, and a phenomenon incapable of accurately grasping is avoided; in the mold opening process, the supporting plate makes contact with the mold opening idler wheels, and thus the mechanical wear is reduced; the door body foaming device is clever in structure, achieves one-step completion of whole processes of upper mold plate hoisting and rotational mold opening in a work station, achieves smooth mold opening in the condition of inaccurate positioning of the door foaming fixture, achieves the purposes of reducing the equipment wear and improving the equipment life, and has quite high economic value.

Description

technical field [0001] The invention relates to the technical field of manufacturing refrigerators and freezers, in particular to a door body foaming device. Background technique [0002] Foaming is a key process in production lines such as refrigerators and freezers. The original door mold opening methods generally have the following types: [0003] 1. The mold opening track is adopted, that is, the round steel or other similar profiles are bent to form an arc-shaped guide rail, and the guide wheel installed on the upper mold of the fixture moves along the arc-shaped guide rail to realize mold opening; [0004] 2. The manipulator is used to open the mold. The grapple on the manipulator directly grabs the shaft on the fixture, and the oil cylinder drives the grapple to move and rotate around the fixture hinge to realize mold opening; [0005] 3. The manipulator adopts positioning pins and inserts them into the corresponding pin holes of the template on the door fixture, and...

AI Technical Summary

Problems solved by technology

[0007] 1. Using the mold opening track to open the mold, the parallel lifting function of the upper template cannot be realized, and the foaming requirements of the deeper door body cannot be met, and the door lining is easily damaged when the mold is opened

In addition, due to the use of the mold opening track to open the mold, the track requires a certain smooth curve, which causes the mold opening station to be too long and increases the footprint of the equipment; the track is mechanically worn during the mold opening process, which affects the life of the equipment;

[0008] 2. The use of a grapple-type manipulator to open the mold also cannot realize the parallel lifting function of the upper template; in addition, the grapple is prone to unreliability when grabbing the axis of the fixture, and may not be able to accurately grasp it due to the position error of the fixture; The grapple is damaged by long-term friction, and the grapple will break;

[0009] 3. The manipulator adopts the method of inserting the positioning pin into the corresponding pin hole, which requires high positioning accuracy during the transportation of the door foam fixture, otherwise it cannot be inserted accurately. Therefore, in actual use, the equipment is often shut down because the pin cannot be inserted; in addition, due to There is an error when inserting, which will cause greater wear to the entire mechanical structure during the mold opening process and affect the life of the equipment

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