Multi-station numerical control thermal forming machine

Abstract

The invention relates to a multi-station numerical control thermal forming machine. Each of an upper die platform lifting mechanism and a lower die platform lifting mechanism comprises a lifting motor, a speed reducer, a driving shaft, a reversing shaft, a first rotary shaft, a second rotary shaft, a pinion, a reversing gear, a first gearwheel, a second gearwheel, at least one first connecting rod mechanism and at least one second connecting rod mechanism. When the lifting motor is started, the speed reducer drives the driving shaft to rotate, so the pinion is driven to rotate; and the first rotary shaft and the second rotary shaft oppositely rotate by mutual meshing to drive the first connecting rod mechanism and the second connecting rod mechanism to simultaneously move, so the lifting of an upper die platform and a lower die platform is realized, and the assembly of an upper die and a lower die is realized. Power output by the lifting motor is converted into the locking force of the upper die and the lower die under the action of three-stage amplification, so the locking force during die assembly exceeds 75 tons and is tripled as compared to the locking force of the conventional thermal forming machine.

Description

technical field [0001] The invention relates to a thermoforming machine, in particular to a multi-station numerical control thermoforming machine. Background technique [0002] The current thermoforming machine generally includes a frame, a conveyor chain arranged on the frame, and an unwinding device, a heating device, a thermoforming device, a punching and shearing device and a collection device arranged on the frame along the conveying direction of the conveyor chain. . The above-mentioned thermoforming device generally includes an upper mold table, a lower mold table, an upper mold, a lower mold, an upper mold table lifting mechanism and a lower mold table lifting mechanism, and two guide columns are respectively arranged on both sides of the frame; the upper mold table, The lower mold platform is installed on the guide column and can slide up and down along the guide column. The upper mold platform lifting mechanism and the lower mold platform lifting mechanism are ins...

AI Technical Summary

Problems solved by technology

This kind of clamping force is small, generally only about 25 tons. When the sheet is formed under positive or negative pressure, or hot pressing, if the tensile force of the sheet is large, it will affect the stability of the mold clamping and affect the product. In addition, due to the small clamping force, some sheets that cannot be heated to a higher temperature to meet the softening requirements cannot be thermoformed, so the selection range of sheet types is greatly reduced

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