Automatic regulating device and method for clamping force of injection molding machine

Abstract

The invention provides an automatic regulating device and method for clamping force of an injection molding machine. The method comprises the steps of installing a clamping force sensor; opening a dieto a set position, and regulating the die to retreat, and closing the die in a die regulating mode; verifying whether a crosshead is at the foremost position or not, regulating die to enter if yes, and returning to the step (1) if not; after regulating the die to enter, and stopping regulation when the sensing clamping force sensor signal is not changed within 1 second; setting the clamping forceaccording to customer requirements, and calculating the corresponding position of the crosshead based on a clamping force-crosshead position comparison table; retreating the crosshead to the calculation position in the die regulating mode; regulating the die to enter, and stopping regulation when the sensing clamping force sensor signal is not changed within 1 second; closing the die in a manualmode; verifying whether the clamping force is within a set value permissible range or not, and finishing automatic regulation of the die if yes; opening the die in the manual mode if not; regulating the die to retreat, and closing the die in the die regulating mode; moving the crosshead to the foremost position in the die regulating mode, and performing calculation through a control module; and returning to the step (4). The automatic regulating device has the advantages of capability of automatic regulation of the clamping force, small error and high accuracy.

Description

technical field [0001] The invention belongs to the technical field of injection molding machine production, and relates to an automatic adjustment device and a related method for clamping force of an injection molding machine. Background technique [0002] With the development of industrial technology, the application fields of plastic products are becoming wider and wider, and the injection accuracy of injection molding machines for plastic products is also getting higher and higher, especially for materials with good fluidity such as PP. In order to ensure the accuracy of the injection, the adjustment of the clamping force of the injection molding machine is very important. When the injection molding machine installs the mold, the injection molding machine needs to adjust the position of the mold. To the relatively backward position → straighten the curved arm (that is, the cross head reaches the front position) → use the mold adjustment motor to advance the rear platen a...

AI Technical Summary

Problems solved by technology

This method is to adjust the mold clamping force by setting the mold clamping force sensor and the standard pressure sensor, and adjusting the number of mold adjustment teeth. It judges the mold clamping force through the relationship between the voltage value and the number of mold adjustment teeth, and cannot intuitively display the size of the mold clamping force.

Images