JP2002307511A - Method for setting molding condition of injection molding machine and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily increase and decrease the number of setting stages with respect to the arbitrary setting stage of a molding condition and to also smoothly alter the number of setting stages during molding work without exerting adverse effect on molding. SOLUTION: The number of the setting stages of the molding condition, which operates the control shaft of an electromotive injection molding machine 1 stored in the memory 26 of a display device 24 with a touch panel, is increased by dividing a setting stage by operating a central processing circuit 25 by an operation key 27 to reset the molding condition. In this case, by designating the setting stage ready to be divided by the operation key 27, the central processing circuit 25 moves down the molding condition of the setting stage on and after the setting stage, to which division is designated, to a lower rank setting stage successively and the molding condition of the setting stage, to which division is designated, is copied to the stage next to the setting stage, to which division is designated, to be stored in the memory 26 to be displayed on a display panel 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding condition setting method and apparatus for setting and changing a speed change such as an injection filling, a pressure holding operation, a mold opening / closing (mold closing) operation, an ejector operation, and the number of variable pressure stages in an injection molding machine. It is about.

[0002]

2. Description of the Related Art Conventionally, in an injection molding machine, the injection speed and holding pressure of an injection screw during an injection process, the rotation speed and back pressure of the injection screw during a measurement process, and the mold opening and closing speed of a movable platen during a mold opening and closing process. The ejection speed, pressure, etc. of the ejector during the product ejection process are set in one or more stages, but better molding can be performed while checking the condition of the molding during the molding operation. In order to achieve this, the number of stages may be increased or decreased to change or reset the molding conditions. As a method and an apparatus for increasing or decreasing the number of molding conditions, the number of molding conditions set in the storage means of the control device is compared with the new and old number of newly set molding stages. For example, add the required number of steps after the last of the old setting steps,
It is known that if there are too many, more than the new setting stage is deleted from the last stage of the old setting stage (Japanese Patent Publication No. 5-1).
No. 9446).

[0003]

However, in the conventional molding condition setting method and apparatus of the injection molding machine, the molding condition is increased or decreased from the last stage of the conventional setting stage. When the setting stage is divided and the condition setting for the divided setting stage is performed, or when the condition setting of the setting stage in the middle of the same setting is changed to one, the new setting number of molding conditions is determined. At this stage, it is necessary to reset the molding conditions after the setting stage to be changed. For this reason, not only does the work of changing the setting of the molding conditions become complicated, but if the setting is changed during the forming operation, the molding conditions are temporarily changed in the changing process, so that the molding cannot be performed well. There is.

The present invention has been made in view of the above circumstances, and the number of setting steps can be easily increased or decreased with respect to an arbitrary setting step of molding conditions. It is an object of the present invention to provide a molding condition setting method of an injection molding machine and a device therefor which can change the setting of molding conditions smoothly without adversely affecting the molding conditions.

[0005]

The present invention has the following features in order to solve the above-mentioned problems. That is,
In the method for setting a molding condition of an injection molding machine according to claim 1, the number of setting stages of the molding condition for operating the control axis stored in the storage means is divided by operating the control means by the operating means. In the molding condition setting method of the injection molding machine to increase and re-set the molding conditions, by specifying a setting stage to be divided by the operating means,
After the control means sequentially lowers the molding conditions of the setting stages subsequent to the setting stage for which the division is specified to the lower setting stages, the molding conditions of the setting stage for which the division is specified are divided. It is characterized in that it is copied to the next stage of the setting stage and stored in the storage means.

In this method for setting molding conditions of an injection molding machine, when a setting stage of molding conditions to be divided is designated by the operation means, the control means controls the setting conditions of the molding conditions stored in the storage means. The molding conditions of the setting stages subsequent to the setting stage for which the division is designated are sequentially moved down to lower setting stages. Then, the molding condition of the setting stage in which the division is specified is copied to the next stage of the setting stage in which the division is specified, and the storage setting of the molding condition in the storage unit is performed.

According to the molding condition setting method of the injection molding machine, the molding condition used in the molding operation is changed by increasing the number of setting stages by the molding condition setting device, and the molding condition stored in the storage means is changed. Even when the conditions are transferred to the storage means of the control axis drive unit and the molding operation is continued, the molding conditions of the set stage increased by division are the same as the molding conditions of the set stage for which the division is designated, so that the control axis The operation is performed safely and smoothly without causing any change in the molding operation.

According to a second aspect of the present invention, there is provided a molding condition setting method for an injection molding machine, in which the number of setting steps of the molding condition for operating the control axis stored in the storage means is arranged by operating the control means by the operating means. In the molding condition setting method of the injection molding machine for reducing and resetting the molding condition, the control unit checks the molding condition stored in the storage unit by instructing the rearranging of the molding condition by the operating unit. Then, after extracting the setting stage of the molding condition having the molding condition that satisfies the sorting target condition, the molding condition of the extracted setting stage is deleted from the storage means, and the molding condition of the next stage after the extracted setting stage is extracted. Is stored in the storage means after the data is justified.

In this method of setting molding conditions of an injection molding machine, when the operating means instructs to arrange the setting stages of molding conditions, the control means causes the molding conditions stored in the storage means to be changed according to the conditions to be arranged. A check is made, and a setting stage of the molding condition to be arranged is extracted. The extracted molding conditions of the setting stage are deleted from the storage means, and the molding conditions of the setting stages subsequent to the deleted setting stage are sequentially advanced and stored in the storage means.

According to the molding condition setting method of the injection molding machine, the molding condition used in the molding operation is changed by deleting the set number of steps by the molding condition setting device, and the molding condition stored in the storage means is controlled. Even when the molding operation is transferred to the storage means of the shaft control driving device and the molding operation is continued, the molding condition of the set stage which has been deleted and reduced is substantially the same as the molding condition before the deletion. Without any change in
Work is performed safely and smoothly.

According to a third aspect of the present invention, there is provided a method for setting molding conditions of an injection molding machine, comprising the steps of:
The rearrangement target conditions are as follows: (1) The switching position of the injection speed is the same as or larger than that of the previous setting stage in the molding condition at the time of filling the injection shaft, which is the control shaft. (3) the injection speed is the same as that of the preceding setting stage. In the molding condition setting method of the injection molding machine, in the molding condition at the time of filling the injection shaft,
The setting stage of the molding condition which does not function effectively for the filling operation is surely deleted.

According to a fourth aspect of the present invention, there is provided a method of setting molding conditions for an injection molding machine, comprising the steps of:
The conditions for rearranging are as follows:
The switching time of the holding pressure is zero. In the molding condition setting method of the injection molding machine, the setting stage of the molding condition that does not substantially function in the pressure holding operation in the molding condition at the time of the pressure holding of the injection shaft is effectively deleted.

According to a fifth aspect of the present invention, there is provided a molding condition setting method for an injection molding machine, wherein the molding condition stored in the storage means by the control means is controlled by the control shaft. Is transmitted to and stored in a storage means provided in a control shaft driving device for operating the. According to the molding condition setting method of the injection molding machine, even when the molding operation is performed by operating the control shaft under the molding conditions stored in the control shaft driving device, the molding condition setting is performed without any hindrance to the molding operation. The setting and changing operations of the molding conditions by the control means of the apparatus are performed independently as needed.

According to a sixth aspect of the present invention, there is provided a molding condition setting device for an injection molding machine, wherein a storage means for storing molding conditions for operating a control axis, a display means for displaying the molding conditions stored in the storage means, and an operating means A molding condition setting device for an injection molding machine, comprising: a control unit that operates according to setting, changing, and storing of molding conditions in the storage unit and display of the molding conditions on the display unit. Is provided with a molding condition list having a plurality of setting stages for storing molding conditions of the control axis, and the operating means includes changing the molding conditions by dividing the number of stages to increase the number of setting stages and the number of stages to delete the setting stages. There is provided a stage number change selecting means for selecting which of the arrangements is to be performed, and the control means further comprises a memory for storing the storage condition in accordance with a mode of changing the molding condition selected by the stage number change selecting device. Copy the molding condition of the specified setting stage in the molding condition list of the stage and add it to the next stage, or delete the specified setting stage and change the molding condition of the next stage to the left. It is characterized by comprising.

In the molding condition setting device of this injection molding machine,
When the change mode of the molding condition selected by the stage number change selection unit is selected, the molding condition list stored in the storage unit is checked by the control unit in response thereto, and the addition of the molding condition setting stage is performed. The setting stage to be deleted is selected. Then, the molding condition of the selected setting stage is copied and additionally set to the next stage, or the selected setting stage is deleted and the molding conditions of the next and subsequent stages are shifted to the front.
Thus, even when the setting step of the molding condition is divided and added and deleted and the rearrangement is changed for the setting step in the middle of the molding condition, a complicated resetting operation or the like is not required, and the molding condition is not required. Provided is a molding condition setting device that can easily set and change.

According to a seventh aspect of the present invention, there is provided a molding condition setting apparatus for an injection molding machine.
The display means comprises a touch panel display, and is characterized in that operation keys to be operated by the operation means are displayed on the input screen in accordance with an operation procedure for setting and changing molding conditions. In the molding condition setting device of the injection molding machine, the setting of the molding condition can be easily performed without erroneous input by operating the operation keys displayed on the input screen of the display means in the display order.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a molding condition setting device for an injection molding machine according to the present invention will be described below with reference to the accompanying drawings. First, an injection molding machine that operates under the molding conditions set by the molding condition setting device will be described. In FIG. 1, reference numeral 1 denotes an electric injection molding machine, a mold clamping device 4 for opening and closing a mold K between a fixed platen 2 and a movable platen 3, and clamping the mold.
An injection device 5 for injecting the molten resin into the mold K clamped by the mold clamping device 4 is provided. The injection device 5
A heating cylinder 6 having an injection nozzle 6a at the front end and a hopper 6b at the rear end is provided. Inside the heating cylinder 6, an injection screw 7 is rotatable around its axis and moves in the axial direction. It is freely inserted. The heating cylinder 6 and the injection nozzle 6
A heater for heating them is attached around a.

The injection screw 7 is provided with an injection electric servomotor 8 for moving the injection screw 7 in the axial direction via a rotary transmission mechanism and a linear movement mechanism (not shown).
And an electric servomotor 9 for rotating the screw that rotates the injection screw 7 via a rotation transmission mechanism (not shown). In addition, the mold clamping device 4 is provided with an electric servomotor 10 for mold clamping that moves the movable platen 3 with respect to the fixed platen 2 via a rotation transmission mechanism and a linear movement mechanism (not shown). . Further, the mold clamping device 4 is provided with an ejector 11 for projecting a molded product formed in the mold K. The ejector 11 is provided with an electric motor for the ejector via a rotary transmission mechanism and a linear motion mechanism (not shown). The servo motor 12 is connected.

Each of the above-mentioned electric servomotors 8, 9, 10, 12 for injection, for screw rotation, for mold clamping, and for ejector.
Corresponds to each control axis of the injection axis for controlling the injection operation, the screw axis for controlling the rotation operation of the injection screw, the mold axis for controlling the mold clamping operation, and the ejector axis for controlling the ejecting operation of the ejector. Control axis servo amplifiers 13A, 14A, 15A, 16 built in the provided control drive units (control axis drive units) 13, 14, 15, 16
A is connected.

Control drives 13, 14, 1 for each control axis
Reference numerals 5 and 16 denote a central processing unit 17, a memory 18 connected to the central processing unit 17 for storing control conditions (molding conditions) for each control axis, and a command for the central processing unit 17 for each control axis servo amplifier. 13A, 14A, 15A, 1
6A and the detection values of the sensors 20 for detecting the voltages and currents output from the control axis servo amplifiers 13A, 14A, 15A and 16A to the electric servomotors 8, 9, 10 and 12, respectively. An input unit for inputting the position detection value of each control axis detected by the encoders 8a, 9a, 10a, 12a provided in the electric servomotors 8, 9, 10, 12 to the central processing unit 17; 21
And

Further, the control driving device 1 for each control axis is provided.
3, 14, 15 and 16 are connected to a main controller 22 for controlling the overall operation of the injection molding machine based on a sequence program, and are provided from a machine operation panel 23 and a display with a touch panel (molding condition setting device) 24. The main controller 22 is operated based on the input operation command.
Is operated, a command signal is output from the main controller 22 and the central processing unit 17 operates. The central processing unit 17 reads the molding conditions in the memory 18 and drives the servo amplifiers 13A, 14A, 15A, 16A for the control axes via the output unit 19, whereby the electric servomotors 8, 9, 10,. 12 operates each control axis under the molding conditions stored in the memory 18.

At this time, the control driving devices 13 for the respective control axes,
Reference numerals 14, 15, and 16 denote electric servomotors 8, 9, and 1, respectively.
The output voltage and current of 0, 12 are detected by the sensor 20, and the operating position of each control axis is determined by each of the electric servomotors 8, 9,.
The operating positions of the control axes are detected by the encoders 8a, 9a, 10a, 12a of 10, 12 or the operating time of the control axes by a timer (not shown). The operation of each control axis is feedback-controlled so that the molding condition in the operation time matches the molding condition corresponding to each setting stage of the operation position or the movement time stored in the memory 18.

Next, the display with touch panel 24 as a molding condition setting device will be described. The display with a touch panel 24 includes a central processing circuit (control means) 25 connected to the main controller 22. The central processing circuit 25 includes control axes (injection axis, screw axis, mold) of the injection molding machine. A memory (storage means) 26 for storing molding conditions of the tightening shaft and the ejector shaft), an operation key (operation means) 27 for inputting various instruction items and set values on a touch panel (input screen), and an operation key 27 Display panel (display means) for displaying the designated items and the input set values
28 are connected to a bus.

The memory 26 stores a list (molding condition list) in which various molding conditions are set in correspondence with each of the plurality of divided setting stages of the operating position or operating time of each control axis. It is stored every time. For example, as for the injection shaft (control axis) for controlling the injection operation by driving the injection screw 7, as a molding condition at the time of filling, FIG.
As shown in FIG. (1) (2) (3)
In, the injection speed is given by V1, V2, V3, the switching position is given by S1, S2, and the injection pressure is given by P1, P2, P3.

The operation keys 27 are, as shown in FIG. 3, a control axis selection key 27A for selecting a control axis whose molding conditions are to be changed, and a selection of whether or not to change the setting stage of the molding conditions. Key 27B for changing the number of steps to be set, and a number-of-steps division key 2 for designating the number of steps to increase the number of steps set in the molding condition.
7Ca and the number-of-steps arrangement key 2 for specifying the arrangement of the number of division steps
A number-of-stages division / selection key 27C composed of 7Cb, a change-stage designation key 27D for designating a setting stage for which the molding condition is to be changed, and a numerical value relating to the molding condition for the setting stage for which the molding condition is to be changed. And a storage setting key 27F for storing in the memory 26 the molding conditions input by the molding condition setting keys.

The display panel 28 displays the molding conditions of the control axis selected by the control axis selection key 27A in the memory 2.
6 is read out by the central processing circuit 25 and displayed, and the number of steps change key 27B, the number of steps for organizing and sorting the keys 27C, the change step designation key 27D, the molding condition setting key 27E, and the storage setting key 27F are connected to the central processing circuit 25. 25
Thus, the keys to be operated are sequentially displayed on the touch panel in accordance with the procedure for changing the setting of the molding condition by distinguishing the keys to be operated from other keys by brightness, color classification, floating display and the like. The molding conditions stored in the memory 26 are processed by the central processing circuit 25 when necessary.
Through the main controller 22, the memory 18 inside the control driving devices 13, 14, 15, 16 for the respective control axes
Is transferred to the old molding condition stored in the memory 18 and stored.

Next, the display 2 with a touch panel having the above-described configuration
4 and FIG. 4 to FIG.
This will be described with reference to FIG. In the course of the molding operation using the electric injection molding machine 1, it is found that the currently set molding conditions are not always appropriate in view of the condition of the molded product, and when it is desired to change the molding conditions, for example, a broken line in FIG. As shown by, the molding conditions in the injection shaft filling process are
O. The injection speed V2 of (2) is changed between the switching positions S1 and S2.
The set stage is divided at the position S2x between the positions and the speed V2x, and the injection operation of the injection screw 7 may be finely controlled by increasing the set stage number.

In this case, the operator selects and presses "injection" with the control axis selection key 27A of the operation key 27 on the display unit 24 with the touch panel, and then presses the step number change key 2
When the user presses 7B (see FIG. 3A), the display surface of the display panel 28 changes to FIG.
Since C appears, the user presses the stage number division key 27Ca of the stage number division rearrangement selection key 27C. When the number-of-stages division key 27Ca is pressed, the display surface of the display panel 28 changes to that shown in FIG. 3 (C), and a change-stage designation key 27D appears. Key, for example, NO.
Press (2).

When the change stage designation key 27D is pressed,
As shown in FIG. 4, the central processing circuit 25 of the touch panel display 24 starts the process of changing the setting stage of the molding condition (step S1), and the molding condition list in the memory 26 (see FIG. 2A). It is determined whether or not molding conditions are stored in all of the preset stages (step S2). If the preset stage is the maximum, the molding condition is determined. Since it is impossible to divide the setting stage of
The process ends as division is impossible (step S3).

When the central processing circuit 25 determines in step S2 that the setting step is not the maximum, the processing condition setting step number is incremented by one to the current setting step number (step S4), and the NO. Conditions (injection speed, speed switching position, injection pressure) stored in the lower setting stage than the setting stage
Is shifted to the next stage as shown in FIG.
And store it (step S5). And N to divide
O. The molding conditions stored in the setting stage (NO. (2)) are copied and stored in the next setting stage (NO. (3)) as shown in FIG. 2C (step S6). ).

At this time, the display surface of the display panel 28 is shown in FIG.
(D), the display section of each molding condition of the setting stage (NO. (3)) generated by the division is designated, and the molding condition setting key 27E is displayed on the input screen to enter a new one. The molding condition setting key 27E
To enter. The input numerical value is displayed in the display column, and is stored in the corresponding setting stage (NO. (3)) of the molding condition list (see FIG. 2) of the memory 26 in place of the copied molding condition. You. At this time, if necessary, the molding conditions of the other setting stages are also changed collectively (step S7), whereby the processing for splitting the molding conditions by the central processing circuit 25 is completed (step S8).

When the molding condition list in the memory 26 is displayed on the display section 28A of the input screen of the display panel 28, the molding condition switching positions S1 and S2 are set at the respective setting stages (NO. (1), NO. (2), NO. (3) ...)
Is displayed in the middle position of. The division setting processing of the molding conditions by the central processing circuit 25 is performed during the molding operation of the electric injection molding machine 1. However, the number of setting steps is increased and newly set and stored in the memory 26. The molding conditions are transferred by the central processing circuit 25 through the main controller 22 to the memory 18 of the control shaft driving device 13 of the injection shaft whose setting has been changed, if necessary, and the injection screw 7 is controlled based on the molding conditions. The injection operation is controlled to perform the molding operation.

Next, when a change is made to increase the setting stage of the molding conditions when the injection shaft is held in pressure, the display panel 28 and its input are input in the same manner as in the process of dividing the molding conditions when the injection shaft is filled. When the operator operates according to the operation keys 27 displayed on the screen, the central processing circuit 25 operates to start the process of changing the setting stage of the molding condition (step S1).
The processing of steps S2 to S8 is performed, and new molding conditions are set and stored in the memory 26.

However, in the case of the pressure holding, the switching of the pressure holding is performed in time, so in step S6, the switching time is set as the molding condition in place of the switching position at the time of filling, and division is performed. The switching time (forming condition) is set to zero in the next stage of the setting stage to be set, and the other forming conditions (holding pressure and speed) are divided into NO. The point stored in the setting stage is copied and stored in the molding condition list, which is different from the case of the filling. Others are the same as those at the time of filling, and the description thereof is omitted.
By setting the switching time to zero instead of copying it to the next stage of the setting stage to be divided, the time interval of the setting stage to be divided is prolonged (undivided), thereby preventing unreasonableness.

When changing the setting stages of the molding conditions at the time of filling and holding the injection shaft, the operator operates the display panel 28 in the same manner as described above.
In the input screen (see FIG. 3A) of the operation key 27, the user selects "injection" with the control axis selection key 27A of the operation key 27, presses the key, and then presses the step number change key 27B to display the input screen of the display panel 28 in FIG. When the number is changed to, the number-of-stages arrangement key 27Cb of the number-of-stages division arrangement selection key 27C is pressed.

With the above operation, the central processing circuit 25 operates to start the process of changing the arrangement of the molding conditions (step S1). When the central processing circuit 25 executes the molding condition list in the memory 26 (FIG. A) is read out, and regarding the filling time, (1) the switching position of each setting stage is equal to or larger than the set value of the preceding setting stage, and (2) the switching position of each setting stage in the molding condition of the injection shaft. Is smaller than the holding pressure switching position, and (3) the injection speed (pressure) of each setting stage is the same as the set value of the setting of the preceding stage. A setting stage having a molding condition that satisfies one of the sorting target conditions in (3) is extracted as a sorting target (step S2).

In addition, regarding the pressure holding time, it is checked whether or not there is a setting stage with a switching time of zero, which is a rearranging target condition, in the molding condition of the injection shaft. Is satisfied, and this is extracted as an object to be rearranged (step S3). Next, the central processing circuit 25
Deletes the molding conditions (injection speed (pressure), switching position) of the set stage to be rearranged extracted in the step S2 from the molding condition list, and sets the molding conditions following the set stage from which the molding conditions have been deleted. Is shifted forward (shifted forward by one step), the number of setting steps of the molding condition is subtracted by the number of deleted setting steps, and the number of setting steps of the molding condition is stored and held (step S4).

Further, the molding conditions (holding pressure and switching time) of the setting stage to be rearranged extracted in the step S3 are deleted from the molding condition list relating to the holding pressure, and the molding stages following the setting stage from which the molding conditions have been deleted are deleted. The molding condition is shifted to the previous stage (shifted to the previous stage), and the molding condition setting stage is subtracted by the number of deleted setting stages, and the molding condition setting stage (holding pressure stage number) is stored and held ( Step S5). When the processing of the steps S2 to S5 is completed, the central processing circuit 25 deletes the molding condition of the unnecessary setting stage from the input screen of the display panel 28, and at this time, the other corrected and input other setting steps are necessary. The molding conditions of the setting stage are also changed collectively (step S
6), the molding conditions reset by the above processing are stored and set in the memory 26, and displayed on the display panel 28, and the processing for organizing the setting stages is completed (step S).
7).

As described above, according to the molding condition setting method and apparatus of the embodiment, when the setting stage of the molding condition to be divided is designated by the change stage designation key 27D of the operation key 27, the central processing circuit 25, the memory 26
In the molding conditions (molding condition list) stored in the table, the molding conditions of the setting stages subsequent to the setting stage for which the division is designated are sequentially moved down to lower setting stages, and the setting for which the division is designated is performed. The molding condition of the setting stage for which the division is designated is copied to the next stage, and the setting of storage of the molding condition in the memory 26 is performed.

Also, the number-of-stages key 2 of the operation keys 27
When ordering the setting stage of the molding condition is instructed by 7Cb, the central processing circuit 25 checks the molding condition (molding condition list) stored in the memory 26 according to the organizing target condition, and determines the molding condition to be organized. The setting stage is extracted, and the molding conditions of the extracted setting stage are deleted from the memory 26. The molding conditions of the setting stages subsequent to the deleted setting stage are sequentially advanced and stored in the memory 26.

Therefore, according to the method and apparatus for setting the molding conditions of the injection molding machine according to the embodiment, the molding conditions used in the molding operation are changed by increasing the number of setting stages on the display unit 24 with the touch panel. Then, the molding conditions stored in the memory 26 are stored in the respective control driving devices 13, 14, 15, 16
Even if the data is transferred to the memory 18 and the molding operation is continued,
The molding conditions of the setting stage that has been divided and increased are the same as the molding conditions of the setting stage for which the division has been designated, or the molding conditions of the setting stage that has been reduced and arranged are substantially the same as the molding conditions before the arrangement. Therefore, the molding operation can be performed safely and smoothly without affecting the molding operation by each control shaft.

In addition, when the setting steps in the middle of the molding conditions are divided and the setting of the setting steps increased is performed, or when the condition setting of the same setting in the middle is consolidated into one, the number of the setting steps is increased or reduced. Since molding conditions other than the setting stage do not change the setting order and can be used as they are, at the stage where the new setting stage number of the molding condition is determined, the troublesome work of resetting the molding condition after the setting stage to be changed is performed. No need.

Further, the molding conditions set and changed on the display unit 24 with the touch panel are controlled by the control driving units 13, 14, 1
The molding operation is performed by operating the respective control shafts under the molding conditions in the memory 18 by transferring and storing them in the memories 18 of the memory 5 and 16. If necessary, any ongoing molding operation is obstructed. Without this, setting and changing of molding conditions can be performed independently of the molding operation. In addition, since the keys are displayed on the input screen of the panel display 28 in accordance with the various key operation procedures of the operation keys 27, by operating the operation keys 27 in the order in which they are displayed, the setting of the molding conditions can be extremely easily performed without erroneous input. Can be done.

In the molding condition setting method according to the above-described embodiment, a setting method has been described in which the setting stage of the molding condition of the injection shaft is changed by designating only one stage and dividing and increasing by one. However, the present invention is not limited to this. When the molding conditions are set to a plurality of stages, a plurality of setting stages can be designated and divided into a plurality of stages, and a change can be made to increase the number of setting stages simultaneously.

Further, in the molding condition setting method of the embodiment, the injection screw 7 is operated as a control axis to apply to the injection axis for controlling the injection speed and the holding pressure in the injection process, and the molding condition setting step is performed. However, the present invention is not limited to the injection shaft, but a screw shaft for rotating the injection screw 7 to control the resin measurement, and the movable platen 3 of the mold clamping device 4. The present invention can be applied to a mold clamping shaft for controlling the opening and closing and mold clamping operation, and an ejector shaft for controlling the ejecting operation of the molded product of the ejector 11. Further, the molding condition setting apparatus of the above embodiment has been described as an example applied to an electric injection molding machine, but the present invention is not limited to this, and the hydraulic injection molding in which the injection operation by the injection screw 2 is performed by a hydraulic cylinder is performed. Of course, it can also be applied to a machine.

[0046]

As described above, according to the present invention, the following excellent effects can be obtained. According to the molding condition setting method of the injection molding machine according to claim 1 or 2, the molding condition being used for the molding operation is changed by increasing the number of setting stages by the molding condition setting device. Even when the molding condition stored in the storage means is transferred to the storage means of the control axis drive device and the molding operation is continued, the molding condition of the set stage increased by division is the same as the molding condition of the set stage for which the division is designated. Since the molding conditions of the set stage reduced or arranged are substantially the same as the molding conditions before the arrangement, the molding operation by the control shaft is not affected, and the molding operation is performed safely and smoothly. be able to.

In addition, when the setting steps in the middle of the molding conditions are divided and the condition setting for the increased setting steps is performed, or when the condition setting of the same setting in the middle step is organized into one, the increase or reduction is performed. Since molding conditions other than the setting stage do not change the setting order and can be used as they are, at the stage where the new setting stage number of the molding condition is determined, the troublesome work of resetting the molding condition after the setting stage to be changed is performed. No need.

According to the molding condition setting method of the injection molding machine according to the third or fourth aspect, in the molding condition at the time of filling the injection shaft, the setting step of the molding condition which does not effectively function in the filling operation can be reliably performed. It is possible to eliminate or to effectively eliminate the setting stage of the molding condition which does not substantially function in the pressure-holding operation in the molding condition at the time of keeping the pressure of the injection shaft.

According to the molding condition setting method of the injection molding machine according to the fifth aspect, even when the molding operation is performed by operating the control shaft under the molding conditions stored in the control shaft driving device,
The operation of setting and changing the molding conditions by the control means of the molding condition setting device can be performed independently as necessary without any hindrance to the molding operation.

According to the molding condition setting apparatus of the injection molding machine according to the sixth aspect, even if the rearrangement change by adding or deleting the setting stage of the molding condition is performed for the setting stage in the middle of the molding condition. It is possible to provide a molding condition setting device which does not require complicated resetting work and can easily set and change molding conditions.

According to the molding condition setting device of the injection molding machine according to the seventh aspect, by operating the operation keys displayed on the input screen of the display means in the display order, the setting of the molding condition can be performed without erroneous input. Can be done very easily.

[Brief description of the drawings]

FIG. 1 is a block diagram of a molding condition setting device of an injection molding machine according to an embodiment of the present invention.

FIG. 2 is a diagram showing a molding condition list in the memory.

FIG. 3 is a diagram showing an input screen of the display panel.

FIG. 4 is a flowchart showing a molding condition setting method of the injection molding machine according to one embodiment of the present invention (processing for dividing molding conditions when filling an injection shaft).

FIG. 5 is a flowchart showing a molding condition setting method (a process of dividing molding conditions at the time of holding pressure of an injection shaft).

FIG. 6 is a flowchart showing a molding condition setting method (processing for organizing molding conditions at the time of filling an injection shaft and holding pressure).

FIG. 7 is an explanatory diagram regarding division of setting stages in setting of molding conditions.

[Description of Signs] 4 Mold clamping device 5 Injection device 6 Heating cylinder 7 Injection screw 8, 9, 10, 12 Electric servomotor 11 Ejector 13, 14, 15, 16 Control drive device (Control shaft drive device) 13A, 14A, 15A, 16A Servo amplifier for control axis 17 Central processing unit 18, 26
Memory (storage means) 22 Main controller 24 Display with touch panel (molding condition setting device) 25 Central processing circuit (setting control means) 27 Operation keys (operation means) 27A Control axis selection key 27B Step number change key 27C Step number division selection key 27D Change stage designation key 27E Molding condition setting key 27F Storage setting key 28 Display panel (display means)

Claims (7)

[Claims] 1. The number of setting steps for forming conditions for operating a control axis stored in a storage means is increased by dividing the setting steps by operating the control means by operating means, and resetting the forming conditions. In the molding condition setting method of the injection molding machine, by specifying the setting stage to be divided by the operating unit, the control unit sequentially lowers the molding conditions of the setting stages subsequent to the setting stage for which the division is designated. After deferring to the setting stage, the molding conditions of the setting stage specified the division,
A molding condition setting method for an injection molding machine, wherein a division is copied to a stage next to a designated setting stage and stored in the storage means. 2. An injection molding machine in which the number of setting steps of molding conditions for operating a control axis stored in a storage means is reduced in order by operating the control means by operating means, and the molding conditions are reset. In the molding condition setting method of (1), by instructing rearranging of molding conditions by the operation unit, the control unit checks the molding conditions stored in the storage unit and has a molding condition that satisfies the rearrangement target condition. After extracting the setting stage of the molding condition, the molding condition of the extracted setting stage is deleted from the storage unit, and the molding condition of the stage following the extracted setting stage is shifted to the front and stored in the storage unit. Method for setting molding conditions of an injection molding machine. 3. The rearrangement target condition is such that (1) the switching position of the injection speed is set to be equal to or larger than the previous setting stage in the molding condition at the time of filling the injection shaft which is the control shaft. 3. The injection according to claim 2, wherein the switching position is set to be smaller than the pressure-holding switching position, and (3) the injection speed is set to be the same as the previous setting stage. How to set molding conditions for molding machines. 4. The molding condition setting of an injection molding machine according to claim 2, wherein the rearrangement target condition is such that, in the molding condition at the time of the pressure holding of the injection shaft, the switching time of the pressure holding is zero. Method. 5. The apparatus according to claim 1, wherein the molding conditions stored in said storage means by said control means are transferred to and stored in storage means provided in a control shaft driving device for operating said control shaft. 5. The method for setting molding conditions for an injection molding machine according to any one of 4. 6. A storage means for storing molding conditions for operating the control axis, a display means for displaying the molding conditions stored in the storage means, and setting of the molding conditions operated by operating means to the storage means. A molding condition setting device for an injection molding machine, comprising: a control unit for performing change, storage, and display of the molding condition on the display unit, wherein the storage unit has a plurality of setting stages for storing molding conditions of a control axis. A molding condition list having a stage is provided, and the operating means includes a stage number change for selecting whether to perform the molding condition change in a manner of dividing the number of stages to increase the number of setting stages or reducing the number of setting stages. A selection unit is provided, and further, the control unit is configured to form the specified setting stage of the molding condition list in the storage unit in accordance with a mode of change of the molding condition selected by the stage number change selection unit. Injection molding machine characterized in that it is configured to copy the matter and add it to the next stage, or to delete the specified setting stage and make a change to shift the molding conditions of the next stage forward. Molding condition setting device. 7. The display means comprises a touch panel display, and operation keys to be operated by the operation means are displayed on an input screen thereof in accordance with operation procedures for setting and changing molding conditions. The molding condition setting device for an injection molding machine according to claim 6, wherein: