Page 71 - 《橡塑技术与装备》英文版2026年2期

MACHINERY AND MOLD

mold clamping force. All of these are achieved through efficient
NΣx i y i −Σx iΣy i
a= ΣNx i −(Σx i ) 2 (4) visualization and human-computer interaction implemented
2
2 by the configuration software. The human-machine interface
Σy iΣx i −Σx iΣx iΣy i
b= (5)
2
2
NΣx i −(Σx i ) software is developed using Huafu Kaiwu controX industrial
configuration software, which is a cross-platform general-
Therefore, by manually opening and closing the mold to purpose configuration software. This software has the
obtain the three sets of mold force and displacement values, advantages of good stability, high operational efficiency, simple
substituting them into equations (4) and (5) can yield the and efficient functional module configuration, etc. It includes
functional relationship of the mold force-displacement curve, an efficient database system, good openness and portability, a
thus obtaining the curing press mold force-displacement curve. simple and efficient scripting system, an embedded rich and
easy-to-use function library, and components such as plugins,
3 Electrical design graphics elements, and functions based on an open architecture
3.1 Electrical design tools design that are easy to extend. It can handle relatively complex
In this article, the core of the electrical part in the data operations with large amounts of data, and is not prone to
intelligent transformation of the curing press lies in the overflow.
application of Programmable Logic Controller (PLC) and 3.2 Electrical principle
configuration software. The PLC is responsible for reading The electrical design of the automatic mold adjustment
encoder data, calculating the current position of the mold control system for the curing press is suitable for the same
based on the mechanical displacement relationship in the mold. With one-time data fitting, the required mold clamping
mold adjustment mechanism, comparing it with the target force can be obtained by inputting the target mold clamping
position, and controlling the action of the mold adjustment force subsequently, achieving the automatic mold adjustment
motor. The PLC design software used is Mitsubishi GX function. After changing the mold, it is necessary to run the
Works3, an advanced programming software developed mold adjustment program. Figure 5 shows the mold adjustment
by Mitsubishi Electric. It is an engineering software that process flowchart of the curing press. Start the mold adjustment
integrates programming, simulation, intelligent function unit program, reset the set parameters, and then manually open and
configuration, and other functions, providing users with an close the mold to obtain the mold clamping force-displacement
efficient engineering environment, improving development curve data and write it into the PLC program. Customers can
efficiency, and reducing development costs. The software set the required mold clamping force (target mold clamping
supports multiple programming languages, with LAD language force) for the current equipment on the screen based on the
(ladder diagram) primarily responsible for implementing generated mold clamping force-displacement curve. After
complex control logic and process control, supplemented by pressing the automatic mold adjustment button, the mold
the embedded structured ST language for simple and data- adjustment motor will automatically operate, enabling the
light arithmetic operations and data processing, achieving the equipment to automatically adjust the mold to the target
use of different programming languages in the same project position corresponding to the mold clamping force, achieving
and leveraging the respective advantages of LAD and ST the one-click automatic mold adjustment function. If the mold
languages. remains unchanged and only the target mold clamping force
The configuration software is responsible for visualization is changed, that is, in the case where a mold clamping force-
and human-computer interaction functions. It reads data in the displacement curve already exists, it is only necessary to
automatic mold adjustment control system, creates a visual change the target mold clamping force in the set parameters
curve of mold clamping force-displacement, calculates the and then press the automatic mold adjustment button to achieve
target position based on the target mold clamping force, and one-click automatic mold adjustment.
reads the current position through PLC to calculate the current

Vol.52，2026 ·27·