JP2002018922A - Controller for injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems that a molding work efficiency is lowered because relating setting group information cannot be monitored and set on one screen by not incorporating all set values of doubling a number of injection molding conditions in one screen in an injection molding machine which has two or more heating cylinders and in which an injection, metering, temperature and the like of principal molding conditions must be frequently changed at a molding condition setting time, the setting of the conditions relating to each other are frequently switched and displayed on the screen, hence troublesome, a set miss easily occurs, in a batch setting screen, may set groups are condensed and incorporated in one screen to cause a wrong visibility. SOLUTION: The set group arbitrarily selected from a set group of predetermined molding conditions is displayed to be settable in cells obtained by equally dividing a display screen of a display unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for setting and displaying molding conditions on a display unit of a control device in an injection molding machine.

[0002]

2. Description of the Related Art A control device of an injection molding machine for setting and displaying molding conditions on a display such as a CRT or a liquid crystal panel has an individual display screen for each setting group such as injection, measurement, mold clamping or temperature. Each setting group has many setting values. In such a conventional control device, in order to set all the molding conditions, the display screen must be switched one after another, which is a very troublesome operation. In addition, when the injection molding operation is performed after completing the setting of the molding conditions, the main molding conditions such as injection, weighing, temperature, etc. must be monitored and changed frequently, Since the setting of the molding conditions is performed by frequently switching the display screen, it is very troublesome and setting errors easily occur.

[0003]

In order to solve the above-mentioned problems in the conventional control device, the present applicant has provided a so-called collective setting screen disclosed in Japanese Patent No. 2849054, so that almost one molding screen can be formed on one screen. Conditions can be set. However, the collective setting screen has a large number of setting groups condensed and stored on one screen, so that visibility is poor, and furthermore, a pre-plasticization type injection molding machine having two or more heating cylinders, a multicolor injection molding machine or a sandwich. In an injection molding machine, etc., the number of injection molding conditions is doubled, so all setting values cannot be stored on one display screen, and related setting group information cannot be monitored and set on one screen, resulting in a significant decrease in molding work efficiency. did.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a display device having a display screen of a display unit, which is provided by dividing the display screen into equally divided groups of predetermined molding conditions. In order to facilitate setting and improve visibility, setting values are arranged in substantially the same manner as the individual setting groups, so that the setting groups can be freely selected according to the type of injection molding machine and the molded product. It is.

[0005]

Embodiments of the present invention will be described in detail with reference to the drawings. The injection molding machine according to this embodiment includes a screw plasticizing device having a heating tube in which a screw is inserted, and a heating tube in which a plunger for accumulating molten resin from the screw plasticizing device and injecting and filling a mold is provided. And a plunger injection device having the following.

FIG. 4 is a block diagram of a control device 16 for controlling the pre-plasticization type injection molding machine.
In addition to performing mold clamping, injection, plasticization, molded product ejection, etc. sequentially, the speed of each actuator,
The molding operation is performed by setting and controlling the force, position, time, temperature and the like as molding conditions. The CPU 11 includes a plurality of microprocessors, performs arithmetic processing according to programs, constants, and set values stored in the storage unit 15, and controls the injection molding machine through the input / output unit 14. Operation unit 12
Is composed of a touch switch and a keyboard provided on the front of the display unit 13. The set values of the molding conditions input from the operation unit 12 are stored in the storage unit 15 and displayed on the display unit 13. The display unit 13 is composed of a CRT or a liquid crystal panel or the like.
Actual values such as position, time, and temperature are displayed as digital values or graphs. The input / output unit 14 is an interface that inputs signals from sensors for speed, position, and temperature of each actuator, and outputs control signals to an electromagnetic switching valve, a heater, a motor, and the like.

FIGS. 1, 2 and 3 show examples of a display screen on the display unit 13. FIG. The display screens according to the present invention are a display screen 1 and a display screen 2, and both screens vertically divide the portion excluding the information display section at the upper end and the setting section at the lower end. Each of the three parts is a cell, from the first cell 3 to the sixth cell 8.

A tab 9 is provided at the lower left of each cell. When this tab is touched, an item selection window 10 (FIG. 3) of six items is displayed. Any of weighing, screw temperature, plunger injection, plunger temperature, and mold clamping device can be freely selected. FIG. 3 shows a state in which a group for setting screw injection is selected in a window 10 displayed by touching the tab 9 of the first cell 3. In each setting group, necessary setting values are centrally arranged for each function of the actuator, and the display screens of the individual setting groups provided separately from the display screens 1 and 2 are substantially the same screens except for graphs and the like. It has a configuration. The setting group is not limited to the above item, and may be replaced with another item, and the number of setting groups may be freely increased or decreased. In addition, 1
Reference numeral 7 denotes an area for displaying the actually measured value in each cell. When the mark on the left side is touched, many selection items appear like the window 10, and the item for actually measured value display can be freely selected.

In this embodiment, since the injection molding machine is a pre-plasticization type injection molding machine, the display screen 1 has a first cell 3, a second cell 4, and a mold clamping device, which are a group of settings related to control of the screw plasticizing device. Select and arrange the third cell 5 related to
A fourth cell 6 which is a setting group related to control of the plunger injection device, and a fifth cell 7 and a sixth cell 8 related to temperature control of the screw plasticizing device and the plunger injection device are selectively arranged. For this reason, in particular, it is possible to display the set values of the set values and the measured values related to the injection filling, the holding pressure, and the temperature, which frequently change and monitor the settings, on the display screen 2 in a detailed and easy-to-understand manner, which means that the efficiency of the molding operation is improved. It greatly contributes to improvement.
In addition, when the fifth cell 7 and the sixth cell 8 are provided side by side, the heater set values are arranged so as to correspond to the actual arrangement of the heating cylinders, thereby contributing to improvement in visibility and operability.

[0010]

As described in detail above, the present invention has good visibility and operability that cannot be obtained with the conventional display screen, and improves and speeds up the molding workability, contributing to the improvement in productivity. I do.

[Brief description of the drawings]

FIG. 1 is a display screen of a control device that implements the present invention.

FIG. 2 is another display screen of the control device for implementing the present invention.

FIG. 3 is a display screen that enables selection of items on a display screen of a control device that implements the present invention.

FIG. 4 is a block diagram of a control device that implements the present invention.

[Explanation of symbols]

 1 ... display screen 1 2 ... display screen 2 3 ... first cell 4 ... second cell 5 ... third cell 6 ... fourth cell 7 ... fifth cell 8 6th cell 9 tab 10 window 11 CPU 12 operation unit 13 display unit 14 input / output unit 15 storage unit 16 control unit 17 actual measurement value display

Claims (2)

[Claims] 1. A control device for setting and displaying molding conditions to control an injection molding machine, wherein a cell on which a display screen of a display unit is equally divided is arbitrarily selected from a set group of predetermined molding conditions. A control device for an injection molding machine, wherein a setting group is displayed and settable. 2. The control device for an injection molding machine according to claim 1, wherein the control device is an injection molding machine having two or more heating cylinders.