Operating method for injection moulding machine

Abstract

The invention discloses an operating method for an injection moulding machine. The operating method comprises the following steps including: step a, performing mould-closing operation by the injectionmoulding machine; step b, performing high-pressure mould locking action by the injection moulding machine, further pushing a cross thrust base to move forwards through a piston of a mould opening andclosing oil cylinder, and locking a movable moulding board; step c, performing injecting action by an injecting assembly; step d, controlling the mould opening and closing oil cylinder to operate bya hydraulic oil path of a mould opening valve in the injection moulding machine, driving the cross thrust base to retract backwards by a preset distance n smaller than a mould opening distance m, andkeeping a high-pressure mould locking state of the movable moulding board by the mould opening and closing oil cylinder and a connecting rod; step e, performing storage action by the injecting assembly; and step f, performing mould-opening action, de-moulding and performing the step a. According to the technical scheme adopted by the invention, mould opening action with a short distance is performed once after injecting action and before storage action, deformation time of each mould locking part of the injection moulding machine and a mould is reduced, the service life can be prolonged, vibrations and noises are reduced, and energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of injection molding machine equipment, in particular to an operation method of an injection molding machine. Background technique [0002] The double toggle clamping device usually used in the existing plastic injection molding machine, refer to figure 1 As shown in , it is a mold clamping structure of injection molding machine disclosed in the document "Working Principle and Structure of Injection Molding Machine" in Baidu Library. During the mold clamping process, the piston rod of the mold opening and closing cylinder pushes the cross thrust seat to move. Then the connecting rod is pushed by the cross thrust seat to straighten the connecting rod to achieve the effect of locking the mold. At this time, the template, connecting rod, lock shaft, cross thrust seat, tie rod and other components of the injection molding machine and the mold will be deformed, and the clamping force The higher the value, the gr...

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Problems solved by technology

[0002] The double toggle clamping device usually used in the existing plastic injection molding machine, refer to figure 1 As shown in , it is a mold clamping structure of injection molding machine disclosed in the document "Working Principle and Structure of Injection Molding Machine" in Baidu library. During the mold clamping process, the piston rod of the mold opening and closing cylinder pushes the cross thrust seat to move. Then the connecting rod is pushed by the cross thrust seat to straighten the connecting rod to achieve the effect of locking the mold. At this time, the template, connecting rod, lock shaft, cross thrust seat, tie rod and other components of the injection molding machine and the mold will be deformed, and the clamping force The higher the value, the greater the deformation, the longer the force time, the greater the damage to the parts of the injection molding machine, and the longer the force time, the greater the waste of energy consumption, and the vibration and noise generated during the mold opening process. will be bigger

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