FR2464137A1 - CONTROL PANEL FOR ADJUSTING THE OPERATIONS OF A PLASTIC INJECTION MOLDING MACHINE, COMPUTER-CONTROLLED - Google Patents

Abstract

CONTROL PANEL FOR ADJUSTING THE OPERATIONS OF A MACHINE 20. THE OPERATIONS CONDUCT CONTROL TABLE 10 IS INTENDED FOR THE INTRODUCTION OF SETPOINTS 13, 13 OF THE VARIOUS PARAMETERS IN A PREDETERMINED ORDER, OPTICALLY SIGNALED TO THE USER; ONLY ONE COMMAND PARAMETER IS FREE AT A TIME TO ALLOW THE ENTRY OF ITS SET VALUE, AND THE OTHER PARAMETERS ARE LOCKED DURING THIS INTRODUCTION. APPLICATION TO COMPUTER CONTROLLED PLASTIC INJECTION MOLDING MACHINES20.

Description

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  The present invention relates to a control panel for adjusting the progress of operations of a machine of

  injection molding of plastics, ordered by or-

  digital display units for optical reproduction of set values entered in an electronic parameter memory as well as

  actual measured values of determined parameters of

  such as pressures, temperatures and

  analogous speakers, and including a keyboard for the introduction

  values of parameter setpoints in the memory of the pa-

  rameters. A control panel of this type is described, for example,

  in DE-OS 2,655,095.

  The possibilities of modern micro-technology

  processors allow, to an increasing extent, a

  Extent of practically all operating parameters of machines of any kind. Much of the cost of executing such orders is largely through the establishment of appropriate programs for the conduct of operations and the introduction of

  appropriate setpoints when setting each machine.

  do not separate. It should be added, for plastic injection molding machines, that following modifications

  or variations of the plastic material used, molds

  the used tools and peripheral equipment of the machine, a reiterated adjustment of this machine is necessary

  during operation. Given the large number of

  settings to adjust, these new settings are extremely

  complicated on injection molding machines,

  computer-generated, known and can only be executed by

  specialized staff, particularly qualified and educated.

  The subject of the invention is the production of a table

  the type mentioned in the preamble, which makes it pos-

  a simple adjustment, excluding any false operation, of a

  large number of parameter setpoints.

  According to the essential features of the invention, this relates to a control panel of the workflow, intended for the introduction of the setpoint values.

  various parameters in a specific order, indicated in

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  user-friendly and reported optically, a single para-

  meter of said order being released each time for the purpose of

  troduction of the deposit value, whereas the introduction of the

  setpoint of all other parameters is prohibited.

  Advantageous embodiments and others

  characteristics of the present invention are described below.

  after a) the control panel according to the invention comprises

  a workflow control such as in

  chronism with the unblocking of the setting of a parameter,

  associated preference values, serving as suggestions for

  or guidance for the user, are at

  extracted from an electronic memory and reproduced

  on the associated digital display units; b) said control panel comprises a monitoring unit which compares for each parameter the values of preferred settings, extracted and reproduced, with the setting value entered by the user using the keyboard; this assembly produces a warning signal if a maximum permissible deviation is exceeded; c) said control panel comprises a permanent memory which can store the information of the parameter memory after the end of an adjustment process; d) the loaded permanent memory can be plugged into

  the front panel of the control panel.

  When setting up a plastic injection molding machine using the control panel according to the invention, the parameters to be adjusted are automatically called

  one after the other, so that the adjuster is guided by

  and without gaps by the setting of the machine. According to a preferred method, preferred adjustment values, which serve as suggestions or guidance for the adjuster, can be displayed at the same time on the control panel,

  for each parameter 't-egler. In the case where

  used parameters are introduced by the user, and

  according to another characteristic of the invention, an alarm signal

  me can be emitted. In this way, all the process

  gluing of a material injection molding machine

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  Plastics using the control panel according to the invention are very simple and exclude any false maneuver, so that we can entrust the task of this adjustment even to the staff

  normal- driving machines mentioned above.

  The invention will be described in more detail, by way of non-limiting examples, with reference to the appended drawings in which: FIG. 1 represents a front view of a control panel according to the invention, with which is associated a plastic injection molding machine shown schematically; and Figure 2 is a block diagram of the components

  essential for the invention, a switchboard

according to the invention.

  The control panel 10 shown in the front view serves to control the workflow of a plastic injection molding machine shown schematically, which comprises, as usual, a mechanism

  21, a control 22, an extruder screw 23 -

  heated, a machine frame 24, a feed funnel 25 and a closure unit 26 surrounding the mold. The command

  22 of the machine is joined by a cable 27 connecting to the

  a calculator (FIG. 2) of a microprocessor, which makes

part of the control panel 10.

  A large number of selective call keys 13a to 13f, 13'a to 13'f, for the parameter set values, and call keys 15a to 15f, 15'a to 15'f, for the values

  actual parameters, are mounted on the front of the table.

  10. As can be seen in FIG. 1, the key queues 13 and 15, 13 'and 15' are distributed on the front face of the control panel 10 so that the call keys for the parameters of FIG. the machine are arranged in the upper third of this front face and the call keys for the parameters of the mold are arranged in the central third of this front face. As part of this rough subdivision of the front panel of the control panel, the structure of the keys

  13, 13 ', 15, 15' is such that for the values of

  sign and the actual values of each separate parameter, a horizontal line of call keys 13a to 13f, or 15a to 15f, is incorporated. In the example shown, the keys 13, 15 correspond to the pressure (set point 13, actual value 15) and the keys 13 ', 15' to the temperature. Each line of call keys 13a to 13f or 15a to 15f can be called at the same time by a collective key or 11 'placed at the left end of each file. A display unit 14 or 16 or 14 'or 16' with light emitting diodes is located below each

  separate call key 13a to 13f or 15a to 15f, a unit on which

  when actuating the call keys 13 or 15 associated therewith, or the associated collective key 11, a set value previously memorized or introduced via a

  keyboard 12 or a measured actual value is displayed.

  The keyboard 12 is at the same time as a light 18, a key

  19 and a strip 17 of connection of a permanent memory 80 (Figure 2) in the lower third of the

front panel of the control panel.

  When setting the set values of the para-

  meters through the keyboard 12, the adjuster is obligatorily guided and without gaps, after the actuation of the

  programming key 19, by setting the machine,

  since the parameters to be set are automatically called one after the other by the lighting of the LEDs of the corresponding call keys 13. It can be seen in FIG. 2 that this automatic call is made by a workflow command 50, which is activated when the programming key 19 is actuated. The output of the control 50 is connected to an input and transmission unit 60, represented by a block, surrounded by a dotted line frame and which comprises an input unit 61, a transmission unit 62 and a memory 63 of preferred values. The input of the input unit 61 (or input) is connected by a line 611 information gathering keyboard 12 and its output (emission)

  is connected on the one hand by a collector line 612

  mations, to a memory 40 of parameters which is part of the microprocessor, and is coupled on the other hand by lines

  41, 42 information collectors to the calculator 30.

  The input of the transmitting unit 62 is connected by an information collecting line 621 to the parameter memory 40 and

  its exit is connected by a line 622 collecting information

  to the digital display units 14, 16. The exit of

  the memory 63 of preferential values is connected, respectively

  information lines 631 and 632,

  both to the transmission unit 62 and to a set 70 of

  monitoring, which is also connected by a collec-

  this information on the keyboard 12 and controls the indicator 18.

  Here is the operating mode of the assembly

  presented by the block diagram of Figure 2.

  In the memory 40 of parameters, set values for the various operating parameters of the

  machine 20 (FIG. 1) for injection molding of plastics

  ticks are stored. These setpoints are selectively called by the calculating member 30 and are continuously compared to the actual values that the control 22 of the machine transmits to said member 30. According to this continuous comparison, the member 30 transmits instructions

at the control 22 of the machine.

  The keyboard 12 is intended for storing the values

  their separate setpoints, the addressing of a con-

  sign typed on the keyboard 12 obtained by a pre-press

  lable on the call key 13 (Figure 1) associated. addressing

  corresponding memory of the parameter memory 40 as well as the

  version of the keyboard output signals in a readable form

  for the memory 40 are made by the input unit 61.

  In a similar manner, the extraction unit 62 is responsible for displaying the set values stored in the memory on the digital display units 14, the addressing of the

  memory 40 being realized in turn by applying a

  to the associated call key 13 (FIG. 1). Likewise, the actual values from the transmission unit 62, which are transmitted by the machine control 22 and stored in a not shown buffer, are sent to the units.

  16 digital display of Figure 1.

  The workflow command 50 acts on

  the input and output unit so that the transmitter unit 62

  one after another the various call keys 13 and consequently the corresponding parameters in a

  rational order, which is indicated optically by

  13 of the call key 13 commanded. The adjuster then presses the illuminated button 13 at this time and then introduces the desired or new desired value via the keyboard 12. In synchronism with the sequential control of the

  call keys 13, the transmission unit 62 extracted from the

  preferably, a preferential reference value associated with the parameter under consideration. This value appears on the digital display unit 14 placed below

  button 13 to give the adjuster a suggested

  management or guidance assistance for the set value to be set. The setpoint value introduced by the adjuster using

  the keyboard 12 is entered by the input unit 61 into the

  of 40 parameters and is applied at the same time

  from line 71 collector of information, to the

  seems 70 monitoring that compares the set value

  preferential value, extracted from the memory 63 of preferred values.

  the setpoint actually introduced via the keyboard 12 and triggers the indicator 18 if a

  maximum permissible deviation is exceeded.

  After executing a programming or a new programming of the memory 40 of parameters, the contents of this memory can be stored in the permanent memory

  80, which is then invariably associated with the corresponding mold 26.

  of the injection molding machine 20 of FIG. 1. When the mold is again used, it is then sufficient to insert the permanent memory 80, associated with this mold, into

  the connection strip 17 on the front face of the control panel

  of 10 so that the contents of the permanent memory 80 are

  stored in the parameter memory 40.

  It goes without saying that the present invention has not been described.

  indicative, but not limiting, and that it is

  susceptible of various variants without departing from its framework.

Claims (5)

  1. Control panel for setting the   operations of an injection molding machine   computer-controlled plastics, this table   carrying many digital display units for optical reproduction of the set values introduced   in an electronic memory of parameters as well as   their actual measured process parameters, for example, temperatures, pressures and the like, and having a keyboard for the introduction of   setpoint values of parameters in the memory of para-   meters, and this table being characterized in that it comprises   a workflow command (50) for the introduction of   the set values of the various parameters in a   determined order indicated in advance to the user and   optically, only one parameter at a time of said command   of (50) being unlocked for the introduction of its setpoint, while the introduction of the set value of all   other parameters is prohibited.   2. Table according to claim 1, characterized in that the operation control (50) is such that in synchronism with the unblocking of the setting of a parameter, the associated preferred adjustment values,   as a suggestion or guidance for the use of   each time they are extracted from an electronic memory (63)   and are reproduced optically on the units (14, 14 ') associated digital signage.   3. Table according to claim 2, characterized   in that it comprises a surveillance unit (70) which   for each parameter the adjustment values   tials, extracted and reproduced at the control value   produced by the user by means of the keyboard (12) and which pro-   warning signal if a maximum permissible deviation ble is exceeded.   4.Table according to any one of the claims   1 to 3, characterized in that it comprises a memory (80) permitting   manente who can save the information from the memory   (40) after the end of an adjustment process.   5. Table according to claim 4, characterized in that the permanent memory (80) is, after loader,   Plug in the front panel of this control panel (10).