JP2905071B2 - Injection control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection control device for controlling injection conditions such as injection speed and pressure in a filling and holding process in an injection device in a plurality of stages and controlling them in multiple stages.

[0002]

2. Description of the Related Art Generally, in an injection device used for a molding machine for synthetic resin materials, in order to stably produce a high-precision and high-quality molded product in a good molding cycle, injection condition data of a plurality of stages is used. An injection control device including a storage unit to be stored and an injection condition switching unit for switching an injection condition of the injection device to a plurality of stages in accordance with data stored in advance in the storage unit is employed. Are divided into a plurality of stages, and the injection conditions are controlled in a plurality of stages.

In such an injection control device,
At the time of tuning the molding conditions or changing the molding material to be employed, a new control stage is added in the middle of the injection condition control stage stored in the storage means, or one of the intermediate control stages is deleted. In some cases, it is necessary to increase or decrease the number of control steps (the number of divided steps of the filling and pressure-holding steps).

However, in such a case, conventionally, first, one step is added after the last step of the control steps stored in the storage means, or the last step is deleted to control the number of control steps. After adjusting to the number of control steps aimed at,
All the setting values stored in the control stages after the control stage to be added or deleted must be manually stepped down or raised one by one one by one, and set again, which is troublesome and takes labor and time by manual labor. There was a problem.
In particular, in the case of deletion, even when operating while displaying all set values on a CRT or the like, after deleting the set value of the last step and adjusting the number of control steps to the target number of control steps, It is necessary to reset the setting, and at the time of setting, since the original setting value has disappeared from the screen, it is necessary to write down the setting value in advance, which has been a rather troublesome operation.

In addition, in recent years, the number of control steps of the injection condition has been increasing with the sophistication of accuracy and quality required for products, and therefore, a control step will be added or deleted in a middle step. In this case, many setting values have to be reduced or increased, so that the operation is extremely complicated and there is a problem that an input error easily occurs at the time of resetting.

[0006]

Here, the present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to easily and quickly add or delete the number of control steps of injection conditions. An object of the present invention is to provide an injection control device that can perform the control.

[0007]

SOLUTION] In order to solve such problems, it is an aspect of the present invention includes a storage Hand stage injection condition data of multiple stages is stored, in accordance with pre-stored data in the storage hands stage controlling step of the injection conditions in the injection control unit configured to include an exit condition switching換手stage for switching a plurality of stages of injection conditions, which are stored in the storage hand stage of the injection device
Add / Remove and the input <br/> hand stage providing a command signal for that position, the deletion processing or perform additional processing of the control stage number of the injection condition on the basis of the input hand stage or we given command signal and add / delete determination means to determine whether to perform additional processing hand stages for sequentially moved down by shifting the injection condition data of step addition processing determined in accordance with stored hand after additional positions definitive in stages by the addition / deletion determining hands stage When, a deletion processing hand stages for sequentially incremented by shifting the injection condition data of stage the addition / deletion determining means deletion process determined in accordance with stored hand definitive in stage deletion position after by, in the provision (e.g., FIG. 1 reference).

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

First, a system configuration of an injection control device as one embodiment of the present invention is schematically shown in FIG.
The injection control device according to the present embodiment includes a CPU 22, a ROM 24,
A microcomputer including a RAM 26 and a bus line 28 is provided. The bus line 28 of this microcomputer is connected to a C
RT32 is connected and keyboard I / F3
4, a keyboard 36 is connected. And
Various setting signals and command signals relating to the injection control data are input to the microcomputer by operating the keyboard 36, and the injection control data stored in the microcomputer is displayed as an image on the screen of the CRT 32. It has become.

In the injection control device configured as described above, the CPU 22 uses the injection control data stored in the RAM 26 to fill and store an injection device (not shown) in accordance with a program stored in the ROM 24 in advance. A control signal for controlling the injection speed and the pressure in the pressure step in multiple stages is output.

More specifically, in the case of six-stage control in which three-stage speed control in the filling step and three-stage pressure control in the pressure-holding step, for example, as shown in FIG. Injection speed data: A to D, injection pressure data: A to A, injection time data: T1 to T4, switching position data: S1 to S5,
Each is input from the keyboard 36 and stored in the RAM 26 as injection control data. FIG. 3 schematically shows the injection control data based on the display state on the screen of the CRT 32. In addition, the injection time data is the set time of each control stage, and the switching position data is the switching position of each control stage set according to the position of the injection screw or the like. The data is switched to the next stage by reaching any of the data and the switching position data. Under normal operating conditions, in the first to third stages in which speed control is performed, switching to the next stage is performed by the switching position data, while pressure control is performed. In the four to six steps to be performed, the next step is switched according to the injection time data.

[0012] In such an injection control device,
The CPU 22 processes an input signal from the keyboard 36 according to a program stored in the ROM 24 in advance, and
The number of injection control stages stored in M26 is changed (added or deleted). FIG. 4 is a flowchart showing the entire process of changing the number of injection control stages.

That is, when the process of changing the number of injection control stages is started, first, in step P1, it is determined whether or not there is a signal input for instructing addition or deletion of the number of injection control stages. finish.

If there is a signal input for instructing addition or deletion of the number of injection control stages, then, in step P2,
It is determined whether or not the input signal indicates an additional process. Then, if the input signal indicates an additional process, step P3
Subsequently, while the addition process of the number of injection control stages is performed, if the input signal is not an instruction signal for the additional process, the deletion process of the number of injection control stages is performed following Step P4.

After such an addition or deletion process is performed, in step P5, the non-display portion data stored in the storage portion of the control stage which has become unnecessary is cleared, and the process ends.

As is apparent from the above description, in the present embodiment, the RAM 26 constitutes a storage means for storing the injection condition data, and the CPU 2
The injection condition switching means is constituted by a microcomputer configured to include the ROM 2 and the ROM 24 and to output a control signal based on the injection condition data stored in the RAM 26. The keyboard 36 constitutes an input means, and the microcomputer which determines whether or not the input signal from the keyboard 36 instructs an additional process in step P2 constitutes an addition / deletion determination means. Further, an addition processing unit and a deletion processing unit are configured by a microcomputer that performs addition processing and deletion processing of the number of injection control stages stored in the RAM 26 in step P3 and step P4.

Hereinafter, Step P3 and Step P4
Will be described with reference to flowcharts shown in FIGS. 5 and 6.

First, as shown in FIG. 5, in the additional processing performed in step P3, when there is a signal input for instructing the additional processing and the additional processing is started, in step Q1, the maximum allowable control step is performed. Number: The value obtained by subtracting the control stage position to be added from the CM is calculated as the number of data shifts:
Put in CX.

In the following step Q2, it is determined whether or not the position of the control step to be added is larger than the value of the currently set speed control step number: n. On the other hand, if not larger, the process continues to step Q5 as an addition of the number of speed control steps.

If it is determined that the number of pressure control steps is to be added, in step Q3, the sum of the currently set speed control steps: n and pressure control steps: m is set to the maximum allowable control steps. : Judge whether it is smaller than CM,
If it is smaller, in step Q4, the value obtained by adding 1 to the currently set number of pressure control steps: m is put in the number of pressure control steps: m, and the m pressure display is changed. If not smaller, the number of control steps is increased. Step Q
4 and the process continues to step Q8.

On the other hand, if it is determined that the number of speed control steps is to be added, a value obtained by adding 1 to the currently set number of speed control steps: n is added to the number of speed control steps: n in step Q5. After changing the n-speed display, in step Q6, is the value obtained by adding the number of pressure control steps: m currently set to the number of speed control steps: n greater than the maximum allowable control step number: CM? Determine whether or not. If it is larger than the value of CM, in step Q7,
The value obtained by subtracting 1 from the currently set number of pressure control steps: m is entered in the number of pressure control steps: m to change the m pressure display. That is, in the present embodiment, priority is given to additional processing,
If the value exceeds the value of the maximum allowable number of control steps: CM, the data of the final control step position is deleted in step Q7. On the other hand, if it is not larger than the value of CM, it is not necessary to delete the data of the final control stage position, so that step Q7 is passed and step Q8 is continued.

Then, in step Q8, the injection speed control data is sequentially shifted down from the control position to be added. Specifically, in order to shift down from the final control stage position, first, the value of the maximum allowable control stage number: CM is put into X, and the injection speed is shifted from the (X) stage position to the (X) stage position. After inputting the data, a value obtained by subtracting 1 from X is input to X. This is the number of data shifts: C
By repeating X times, the injection speed control data is sequentially shifted.

Further, in step Q9, the injection pressure control data is sequentially shifted down from the position of the control stage to be added by the same processing as the shift shift of the injection speed control data.

Thereafter, prior to the shift processing of the injection time data and the switching position data, in step Q10, the position of the additional control stage is compared with 1, and if not equal, step Q11 is bypassed and step Q12 is continued. If the position of the additional control step is equal to 1, in step Q11, a value obtained by subtracting 2 from the maximum allowable control step number: CM is entered in the number of data shifts: CX, and then the process proceeds to step Q12.
However, the injection time data does not change the set value at the first control stage position, and the switching position data has one less set value than the maximum allowable control stage number: CM.
In any case, the number of shifts does not become larger than a value obtained by subtracting 2 from the maximum allowable control step number: CM.

In step Q12, the injection time control data is sequentially shifted down from the control position to be added by the same processing as the injection speed control data.

Further, in step Q13, first,
Maximum permissible number of control steps: X minus 1 from CM
After that, the control data of the switching position is sequentially shifted down from the control position to be added by the same processing as the control data of the injection time and the like, and the processing is terminated. It should be noted that the value of CM-1 is entered in X because the number of control data at the switching position is one less than the number of control data such as the injection time.

That is, by the processing for adding the number of injection control stages, for example, a control stage is added to the first stage in the control data initially set to the third speed and the third pressure as shown in FIG. When the control data is changed to the 4th-speed 3rd-pressure control data, each control data is shifted down as shown in FIG. 7, and a control step is added to the fifth step. When the control data is changed to the control data of the third speed and the fourth pressure, each control data is shifted down as shown in FIG. The data of the added injection control stage (the first stage in FIG. 7 and the fifth stage in FIG. 8) and the like are thereafter changed as necessary.

Therefore, in the injection control device having the above configuration, when the number of injection control stages is additionally processed, it is not necessary to manually shift down the data of the control stages after the additional stage position by manual input. Since it is only necessary to correct the data at the control stage position to be changed, the workability and quickness of the control data change can be greatly improved, and the occurrence of data input errors at the time of the change can be advantageously prevented. It is.

On the other hand, as shown in FIG. 6, in the deletion processing performed in step P4 (see FIG. 4), when a signal input for instructing the deletion processing is received and the deletion processing is started, the deletion processing is started in step R1. , Maximum allowable number of control steps: CM
The value obtained by subtracting the position of the control stage to be deleted from is entered in the data shift count: CX.

In the following step R2, it is determined whether or not the position of the control step to be added is larger than the value of the currently set speed control step number: n. On the other hand, if not large, the process proceeds to step R4 as an addition of the number of speed control steps.

In step R3, a value obtained by subtracting 1 from the currently set number of pressure control steps: m is entered in the number of pressure control steps: m to change the m pressure display, and thereafter, the process proceeds to step R5. . On the other hand, in step R4, a value obtained by subtracting 1 from the currently set speed control step number: n is entered in the speed control step number: n to change the n-speed display, and thereafter, the process proceeds to step R5.

Then, in step R5, the injection speed control data is sequentially shifted up from the control stage position to be deleted. Specifically, in order to shift up from the deletion control stage position, first, a value obtained by adding 1 to the control stage position to be deleted is put in X, and the injection speed (X−
1) After the data of the (X) level position is input to the level position,
Is added to X. This is repeated CX times to shift the injection speed control data sequentially.

Further, in step R6, the injection pressure control data is sequentially shifted up from the control stage position to be deleted by the same processing as the injection speed control data shift shift.

Thereafter, prior to the shift processing of the injection time data and the switching position data, in step R7,
The position of the deletion control stage is compared with 1, and if they are not equal, step R8 is passed and step R9 is continued. If the position of the deletion control step is equal to 1, in step R8, a value obtained by subtracting 2 from the maximum allowable control step number: CM is entered in the number of data shifts: CX, and then the process proceeds to step R9. However, in the injection time data, the set value at the first control stage position is not deleted, and the switching position data has one set value smaller than the maximum allowable control stage number: CM.
This is because the number of shifts does not become larger than a value obtained by subtracting 2 from the maximum allowable control step number: CM.

In step R9, the injection time control data is sequentially shifted up from the position of the control stage to be deleted by the same processing as the shift shift of the injection speed control data.

Thereafter, in step R10, the position of the deletion control stage is subtracted from the maximum number of control stages: CM, and a value obtained by subtracting 1 from that value is calculated as the number of data shifts:
Put in CX. This processing is performed because the number of control data at the switching position is one less than the number of control data such as the injection time.

Subsequently, in step R11, the control data of the switching position is sequentially shifted up after the control stage position to be deleted by the same processing as the shift shift of the control data such as the injection speed, and the processing is ended.

That is, in the control data initially set to the third speed and the third pressure as shown in FIG. 3, for example, the first control stage is deleted by such a process of deleting the number of injection control stages. When the control data is changed to the control data of the second speed and the third pressure, as shown in FIG. 9, each control data is shifted up, and the fifth control step is deleted. When the control data is changed to the third-speed, two-pressure control data, each control data is shifted up as shown in FIG.

Therefore, in the injection control device having the above-described configuration, when the number of injection control stages is deleted, it is not necessary to shift up the data of the control stages after the position of the delete stage by manual input. The workability and speed of data change can be greatly improved, and the occurrence of data input errors at the time of change can be advantageously prevented.

Although the embodiment of the present invention has been described in detail, this is a literal example, and the present invention is not construed as being limited to such a specific example.

For example, the number of control steps in the injection control device is not limited. In particular, the greater the number of control steps, the more effectively the effect of the present invention can be exhibited.

The data to be switched is not limited to the injection speed, the injection pressure, the injection time, and the switching position data, and only one, two, or three of them are switched. It is also possible to perform control, or to control switching of control data of a changeover switch for performing step control or slope control of injection speed control.

Further, in the above-described embodiment, whether the change (addition / deletion) of the speed control data or the change of the pressure control data is determined based on the position of addition or deletion of the control data. For example, the change of the speed control data or the change of the pressure control data may be directly input from the outside.

In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, various changes, modifications, improvements, and the like can be made, and unless such embodiments depart from the spirit of the present invention.
Both are included in the scope of the present invention,
Needless to say.

[0045]

As is apparent from the above description, in the injection control device having the structure according to the present invention, when adding / deleting the injection condition data stored in the storage means to increase or decrease the number of control steps, Since the injection condition data after the control stage position to be added or deleted is sequentially shifted down or up, it is not necessary to reset those data by hand.

Therefore, the workability and quickness of the control data change at the time of increase / decrease change of the number of control steps can be remarkably improved, and the occurrence of data input error at the time of change can be advantageously prevented. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an injection control device according to the present invention.

FIG. 2 is a block diagram showing a system configuration of an injection control device as one embodiment of the present invention.

FIG. 3 is a diagram showing an example in which injection control data set and stored for performing six-stage control in the injection control device shown in FIG.
It is explanatory drawing which shows roughly by the display state on the screen of T.

FIG. 4 is a flowchart illustrating an operation of changing the number of injection control stages in the injection control device shown in FIG. 2;

FIG. 5 is a flowchart for explaining an operation in an additional processing stage in the flowchart shown in FIG. 4;

FIG. 6 is a flowchart for explaining an operation at a deletion processing stage in the flowchart shown in FIG. 4;

7 is an explanatory diagram showing a specific example in which the injection control data addition processing shown in FIG. 3 is performed in accordance with the flowchart shown in FIG. 5;

8 is an explanatory diagram showing another specific example in which the injection control data addition processing shown in FIG. 3 is performed according to the flow chart shown in FIG. 5;

9 is an explanatory diagram showing a specific example in which the injection control data shown in FIG. 3 is deleted according to the flowchart shown in FIG. 6;

10 is an explanatory diagram showing another specific example in which the injection control data shown in FIG. 3 is deleted according to the flowchart shown in FIG. 6;

DESCRIPTION OF SYMBOLS 10 Storage means 12 Injection condition switching means 14 Input means 16 Addition / deletion determination means 18 Addition processing means 20 Deletion processing means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B29C 45/46-45/52 B29C 45/76-45/77 B22D 17/32

Claims (5)

(57) [Claims] 1. A storage means for storing injection condition data of a plurality of stages, and an injection condition switching means for switching an injection condition of an injection device to a plurality of stages in accordance with data previously stored in the storage means. In the injection control device, a control step of the injection condition stored in the storage unit is added /
Input means for providing a command signal relating to deletion and its position ;
Addition / deletion determination means for determining whether to perform addition processing or deletion processing of the number of control steps of the injection condition based on the command signal given from the input means, and according to the addition processing determination by the addition / deletion determination means. An additional processing means for sequentially shifting down and shifting the injection condition data of the stage after the addition position in the storage means; and sequentially outputting the injection condition data of the stage after the deletion position in the storage means in accordance with the deletion processing decision by the addition / deletion determination means. An injection control device comprising a deletion processing means for shifting up and shifting up. 2. A method according to claim 1, wherein said command signal is input from said input means.
And controlling the injection condition by the additional processing means.
When performing additional processing of numbers, injection conditions after addition
The number of control stages is the maximum allowable control stage set in advance.
Control of the injection condition, which is located in the final control stage if exceeded
By deleting data, control by the additional processing means
A contract with additional processing priority means that allows additional data
The injection control device according to claim 1. 3. The control device according to claim 2, wherein said storage means stores control data of an injection speed.
And injection pressure control data are included in the injection condition data.
And a command given from the input means.
Addition / deletion position of injection condition control stage based on signal
Is the value of the currently set injection speed control stage number.
Judge whether it is larger than
Decide to add or delete the number of steps
If not, add or reduce the number of injection speed control steps.
Additional data judgment means to determine that
The injection control device according to claim 1 or 2. 4. The storage means stores a time point at which the injection condition is switched.
In order to set the switching position control data, the injection condition
Stored in the data and given from the input means.
Based on the obtained command signal, add the control stage of injection condition
It is determined whether the addition / deletion position is at the first stage,
Said further processing means or the deletion processing means if Kaide
The number of data shifts by the maximum allowable control steps
Set to the number of times equivalent to minus 2 from
On the other hand, if it is not the first stage, the data
The number of shift processes is calculated from the maximum allowable
To the value obtained by subtracting the value of the add / delete position of the control stage of
Set the number of hits and the data
From the maximum allowable control stage number
Minus the value of the add / delete position of the control stage and 1 more
Switching position system that sets the number of times to a value equivalent to minus
2. A method according to claim 1, further comprising means for setting the number of times of shift processing of the control data.
4. The injection control device according to any one of 3 to 3. 5. A command signal provided from said input means.
A control step that is no longer necessary in the storage means
To clear the injection condition data stored in the
5. The method according to claim 1, further comprising a data clearing means.
The injection control device as described in the above.