Device for automatically balancing moving die table

Abstract

The invention relates to a device for automatically balancing a moving die table. The device comprises an upper die plate moving table and a lower die plate moving table of a hot former, and is characterized by also comprising at least one supporting piece and at least one soft connection strip, wherein the supporting piece is arranged on a stander of the hot former in a rotatable manner and positioned above the lower edge of an upper fixed table of the hot former; the soft connection strip bypasses the supporting piece; and one end of the soft connection strip is connected with the upper die plate moving table, and the other end of the soft connection strip is connected with the lower die plate moving table. The upper die plate moving table and the lower die plate moving table are mutually pulled through the soft connection strip by taking the supporting piece as a pivot, so that the weights of the upper die plate moving table and the lower die plate moving table are counteracted; therefore, the inertial impact of an upper die plate and a lower die plate during die assembly is reduced, the vibration is reduced, and the die assembly is relatively stable; furthermore, due to the mutual traction action of the upper die plate moving table and the lower die plate moving table, one die plate moving table rises, and the other die plate moving table falls, so that the rising acting forces of the upper die plate moving table and the lower die plate moving table are relatively small, the reactive power loss is reduced, and the efficiency is improved.

Description

technical field [0001] The invention relates to a balancing device, in particular to an automatic balancing device for a movable mold table. Background technique [0002] At present, a thermoforming machine generally includes a frame, a guide column, an upper fixed table, an upper template movable table, an upper template, a lower fixed table, a lower template movable table, and a lower template. Both the upper template movable table and the lower template movable table are installed on the guide The upper formwork is connected to the upper formwork movable table, the lower formwork is connected to the lower formwork movable table, the upper formwork movable table and the upper fixed table, and the lower formwork movable table and the lower fixed table are also connected. Equipped with connecting rod drive mechanism. When this kind of thermoforming machine is mold clamping or blanking, the upper and lower template movable tables reciprocate up and down. Due to the weight of...

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Problems solved by technology

However, the above-mentioned structure with added springs still has the following disadvantages: during the reciprocating motion of the upper and lower template movable tables, the connecting rod drive mechanism needs to exert a greater effect on the upper and lower template movable tables. In order to overcome the weight of the movable table of the upper template and the movable table of the lower template, the reactive power loss is relatively large; in addition, the rebound of the spring after being compressed produces a large instantaneous impulse force on the movable table of the upper template and the movable table of the lower template, And it is difficult to control, so it is easy to cause vibration, resulting in unstable mold clamping

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