Mold changing trolley capable of centering mold and making mold be universal

Abstract

The invention discloses a mold changing trolley capable of centering a mold and making the mold be universal. The mold changing trolley comprises a pulley, a chassis, a jacking base plate, mold changing platforms and centering mechanisms; the jacking base plate is fixed to the top of the chassis by virtue of a plurality of lifting columns and is fixedly provided with two mold changing platforms; a side plate at the outer side of each mold changing platform is provided with one centering mechanism; each centering mechanism comprises a guide sliding plate, a rolling wheel, a proximity transducer and a telescopic rod; each guide sliding plate is arranged vertically; the bottom of each guide sliding plate is provided with an arc-shaped groove; each guide sliding plate at the corresponding side of the corresponding arc-shaped groove is connected with the side plate at the outer side through one corresponding telescopic rod; and one side, in the same direction with the side plate at the inner side, of each guide sliding plate is provided with the corresponding proximity transducer. Before mold filling, the mold changing trolley disclosed by the invention disclosed by the invention can be used for automatically centering the molds different in width on the mold changing platforms, can realize adjustment and centering of the mold position without use of manpower, and meanwhile is high in universality and can be used for changing the molds according to different types of injection molding machines.

Description

technical field [0001] The invention relates to the technical field of injection molding machines, in particular to a mold changing trolley capable of centering molds and being universal. Background technique [0002] In the current plastics industry, when a large injection molding machine needs to replace the mold, it can only be replaced by a crane and manpower. When the crane replaces the mould, it is prone to illegal operations such as crooked pulling and slanting, and the wire rope is also prone to damage the machine tool equipment during the pulling process. On the other hand, because the pulling distance is difficult to control, the operator operates completely by his own feeling, which is very easy to cause the accident that the mold slips off the ground and hurts people due to improper force. In addition, moving large molds manually is time-consuming and labor-intensive. [0003] The Chinese utility model patent application with the application number 201420793794...

AI Technical Summary

Problems solved by technology

[0010] However, there are still technical problems as follows: for large injection molding machines of different tonnages and different models, the heights are not the same, and one mold changing trolley can only be used for one type of injection molding machine, which has poor versatility

In addition, the positioning accuracy is low and it is easy to misjudge

[0011] Another important thing is that in order to adapt to molds of different widths, the width of the mold trolley is usually larger. When the mold is placed on the mold changing trolley, if there is a deviation in the placement position, or the mold changing trolley moves too fast or the ground Unevenness, etc., may cause deviations in the position of the mold. In the subsequent mold installation, it is necessary to manually adjust the position of the mold, and the operation is cumbersome and laborious.

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