A control method of a heat-sealing mechanism

Abstract

The invention relates to sanitation supply production equipment, and provides a control method for a heat seal mechanism. The control method comprises the following steps that firstly, the heat seal mechanism is connected with a PLC and controlled by the PLC, a product conveying mechanism is connected and controlled by the PLC, and one periodical walking 360-degree stroke is set from the period that a first electronic cam conducts 360-degree rotation by one circle and a first servo motor is controlled to drive an upper roller and a lower roller to rotate for tool bit heat seal to the period ofnext-time tool bit heat seal; and secondly, the time needed for one running period of the first electronic cam and the time needed for one running period of a second electronic cam are set to be thesame, and meanwhile the motion speed a of the first servo motor at the A-degree stroke is smaller than the motion speed b of a second servo motor at the A-degree stroke. The control method solves theproblems that according to existing sanitation supply production line heat seal mechanism control, after the production speed is increased, heat seal is instable, and the product quality is low.

Description

technical field [0001] The invention relates to sanitary product production equipment, in particular to a control method of a heat-sealing mechanism. Background technique [0002] At present, the heat-sealing mechanism is widely used in the production equipment of baby training pants. The knife heads of the upper roller and the lower roller of the heat-sealing mechanism are controlled by two sets of heating mechanisms to control the temperature of the knife heads respectively. When the equipment is in production, the upper roller and the lower roller run synchronously under the drive of a servo motor, and use the high temperature and relative pressure of the upper roller cutter head and the lower roller cutter head to weld the material to make the material cement. As the production speed of the equipment increases, the operating speed of the heat sealing mechanism also increases, and the frequency of material welding also increases, so the contact time between the upper rol...

AI Technical Summary

Problems solved by technology

As the production speed of the equipment increases, the operating speed of the heat sealing mechanism also increases, and the frequency of material welding also increases, so the contact time between the upper roller cutter head and the lower roller cutter head also decreases. The temperature of the cutter head and the lower roller cutter head is fixed and the relative pressure is constant, so the effect is that as the contact time between the upper roller cutter head and the lower roller cutter head shortens, the firmness of the material after welding is reduced, resulting in The weld seam of the finished product is detached, which affects the use effect