JPH074838B2 - Injection molding machine with product take-out machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection molding machine in which a control unit of an injection molding machine body controls a product take-out machine that automatically takes out a molded product from a mold of an injection molding machine.

2. Description of the Related Art A product take-out machine that automatically takes out a molded product from the mold when the injection molding machine finishes injection and cooling and opens the mold has a control section in the conventional product take-out machine itself. It sent and received a signal and automatically operated to take out molded products. For example, when the product take-out machine receives a mold open completion signal from the injection molding machine, the product take-out machine starts driving, picks up the molded product from the mold with a certain sequence operation, and injection-molds the take-out completion signal. It was operating like replying to the machine itself.

In addition, a system has been recently developed in which a servomotor is used as the drive source of the injection molding machine and the numerical control device controls these servomotors to drive the injection molding machine. A system has also been developed in which a peripheral device such as the product take-out machine is controlled by a control device so that a control unit is not provided in each peripheral device.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention relates to a product unloading machine controlled by the control unit of the injection molding machine body described above. When the injection machine and the product unloading machine are automatically operated, In synchronization with the automatic operation of the molding machine, the product take-out machine is also automatically controlled and driven by the control unit of the injection molding machine body, and there is no problem. However, it may be necessary to manually operate the product unloader for testing and adjustment. Normally, the product take-out machine opens and closes the hand, moves the arm forward and backward, moves the arm up and down,
At least four axes such as rotation of the arm to the left and right are required, and eight or more manual switches must be provided to manually drive each of the four or more axes. Therefore, when controlling the product unloading machine by the control unit of the injection molding machine body, the control unit of the injection molding machine body must be provided with the above-mentioned eight or more manual switches for manually driving the product unloading machine. . If a manual switch for manually driving each part of the injection molding machine is installed and a manual switch for manual operation of the product take-out machine is installed, the number of manual switches will be large and the installation space will be low. In terms of performance or operator's operation.

Therefore, an object of the present invention is to enable manual operation of a product take-out machine by using a manual switch of each part for manual operation of an injection molding machine body.

Means for Solving the Problems FIG. 1 is a block diagram of means for solving the above problems adopted by the present invention. The present invention is a selection switch button for manually operating each mechanism of the injection molding machine main body E. A and an injection molding machine having a product take-out machine F having a direction selection switch button B for designating an operation direction of a mechanism selected by the selection switch button A and controlled by a control unit of the injection molding machine, Selection means C for selecting the manual operation mode of the product take-out machine F, and the product take-out machine F by the selection means C
When the manual operation mode is selected, the command from each selection switch button A is converted into a selection command for each associated axis of the product unloading machine F, and the direction selection switch button B is selected.
From the conversion means D for converting the command from the conversion instruction D into the operation direction command of the selected axis of the product take-out machine F, and the direction of the axis of the product take-out machine F commanded by the selection switch button A by the conversion output from the conversion means D. The above problem is solved by providing the driving means f for driving in the direction instructed by the selection switch button B.

Operation When the manual operation mode of the product take-out machine F is not selected by the selection means C, the conversion means D does not perform any conversion, and the selection switch button A and the direction selection switch for manual operation of the injection molding machine. When each of the buttons B is selectively pressed, the selected mechanism of the injection molding machine body E is driven in the selected direction. On the other hand, when the manual operation of the product unloading machine F is selected by the selecting means C, the converting means D switches the command of the selecting switch button A and the direction selecting switch button B to the command to the driving means f of the product unloading machine F. Since the selection switch button A and the axis of the product unloading machine are associated with each other, and the relationship between the command direction of the direction selection switch button B and the driving direction of the axis is determined,
The pressed selection switch button A and the direction selection switch button B allow the product unloading machine F to manually operate the selected operation.

As a result, the product unloading machine can be manually operated without providing a switch for manually operating the product unloading machine.

Embodiment FIG. 2 is a block diagram of an embodiment of the present invention, in which 1 is a numerical control device (hereinafter referred to as NC device) for controlling an injection molding machine body and a product take-out device 2, and 2 is an output of the NC device 1. Circuit 21
3 is an operation panel connected via the input circuit 20 of the NC device 1, and 4 is a bus arbiter controller (hereinafter referred to as BAC) 13 of the NC device via an operator panel controller 19. It is a connected CRT2 MDI.

The NC device 1 includes an NC microprocessor (hereinafter referred to as CPU) 11 and a programmable machine controller (hereinafter referred to as PM).
CPU 12 for PMC, and the PMC CPU 12 has a manual operation program for a product take-out machine, an injection molding machine,
ROM1 that stores the sequence program of the product unloader
5 is connected, and the NC CPU 11 drives and controls the ROM 14 that stores a management program that controls the injection molding machine as a whole and the servo motors M for injection, clamping, screw rotation, ejector, etc. The servo circuit 17 is connected via the servo interface 16. Only one servo motor M and servo circuit 17 are shown in FIG. Reference numeral 18 denotes a non-volatile shared RAM having a backup power source, which stores a program for controlling each operation of the injection molding machine and various set values and parameters described later. 13 is the above-mentioned BAC, and the BAC 13 has an NC CPU 11 and a PMC.
Each bus of the CPU 12, shared RAM 18, input circuit 20, and output circuit 21 is connected, and the bus used is controlled by the BAC 13. Reference numeral 22 is a RAM used by the CPU 11 for NC for temporary storage of data during various processes.
RAM is selectively connectable to the CPU 12 as well, and is not connected in this embodiment.

The operation panel 3 connected to the input circuit 20 has a power switch 31,
Operation mode selection switch groups 32a to 32c for selecting one of automatic, semi-automatic and manual operation, and a die height and a clamp (mold clamping device) for adjusting the rear platen position according to the thickness of the mold of the injection molding machine. Ejector, core,
Manual operation selection switch groups 33a to 33g for selecting and manually operating any of various mechanisms such as an injection unit, a screw, an extruder, and a direction selection switch group 34a for selecting the operation direction of each selected mechanism, 34b is arranged.

In addition, the product take-out machine 2 uses a conventional product take-out machine, but it is composed of only a drive section without a control section of the product take-out machine. An example is shown in FIG. The product take-out machine 2 is the first
Arm 25 moves back and forth as indicated by arrow a, and
The second arm 26 provided at the tip of the first arm 25 moves up and down as shown by an arrow b, and the hands 27a and 27b provided at the tip of the second arm 26 are opened and closed as shown by an arrow C. In addition, the second arm 26 has a four-axis structure in which the second arm 26 rotates about the first arm 25 as shown by an arrow d, and each of the arms 25, 26 hands 27a, 27b is an air cylinder. The air cylinders are driven by a solenoid valve.

The CRT / MDI4 is a key 4a for inputting data such as set values and various command inputs and a soft key 4b for selecting a function corresponding to the CRT screen.
have. Particularly, in connection with the present invention, a product unloader mode selection screen for selecting ON / OFF of the control of the product unloading machine and the automatic mode and manual mode at that time is provided, and the mode selection screen is displayed on the CRT. You can select the mode by soft key. FIG. 4 shows an example of the mode selection screen of the product unloading machine, 41 is a column for displaying the mode selection screen of the product unloading machine, and 42 is the control of the product unloading machine. 43 is a column for displaying whether or not the automatic or manual operation mode is selected, and 44 is a column for displaying the combination of the operation of the product unloader and the command switch for performing the operation in the manual operation mode. . Reference numeral 45 is a display field for the soft key 4b. In this screen, the soft key display 45a for turning on the control of the product unloading machine 2, the soft key display 45b for turning off the control, and the product unloading machine 2 are automatically operated. Soft key display 45c, soft key display 4 for manual operation
5d is displayed respectively. Reference numeral 46 is a mark indicating that the operation is currently in progress.

Next, the operation of this embodiment will be described. First, when operating the injection molding machine automatically, the automatic switch button 32a of the operation panel 3
If the check box is inserted, the injection molding machine will start automatic operation, and the product take-out machine 2 will also be automatically operated according to the operation of the injection molding machine. When operating the injection molding machine manually, insert the manual switch button 32c, press the selection switch buttons 33a to 33g of the mechanism to be driven, and select the drive direction with the direction selection switch buttons 34a and 34b. ,
The selected mechanism is driven in the selection drive direction. For example, if the clamp shaft is to be driven in the mold opening direction, first, the clamp switch button 33b is pressed and the direction selection switch 34a for the mold opening direction is pressed to drive the clamp shaft and perform mold opening. When the direction selection switch 34b having the opposite direction is pressed, the clamp shaft is driven in the mold closing direction. In this way, when one of the selection switch buttons 33a to 33g for the manual operation of the injection molding machine is selected and one of the direction selection switches 34a and 34b is pressed, the selected mechanism of the injection molding machine is selected. Switch buttons 33a-3
As long as each of 3g and one of the direction selection switches 34a and 34b is pressed, the selected mechanism moves in the selected direction. These manual operations are already known and are described in detail in Japanese Patent Application No. 60-142520.

Next, when you want to operate only the product unloader 2, first display the product unloader mode selection screen as shown in Fig. 4 on the display screen of CRT / MDI4, and execute the operation command of the product unloader 2 by software. Enter from key 4b, then soft key
If an automatic operation command is input from 4b, the product take-out machine 2 can be automatically operated, and if a manual operation command is input from the soft key 4b, the product take-out machine 2 can be manually operated.

The command switch for the manual operation of the product unloading machine 2 is also used by the selection switches 33a to 33g and the direction selection switches 34a and 34b used when the respective mechanisms of the injection molding machine body are driven by the manual operation. In FIG. 4, as shown in FIG. 4, the relationship between the combination of command switches and the operation of the product unloader is displayed on the product unloader mode selection screen. For example, in the present embodiment, the clamp switch button 33b on the operation panel selects the operation of the hands 27a, 27b, and if the clamp switch button 33b is pressed and the left direction selection switch 34a is pressed, the hands 27a, 27b are opened. ,
This means a command to close the hands 27a and 27b by pressing the right direction selection switch 34b. Similarly, the ejector switch button 33c serves as a selection switch for the vertical movement of the second arm 26, and the left direction 34a of the direction selection switch is raised and the right direction 34b is selected.
Will choose to descend. Core switch button 33d
Is a selection switch for rotation of the second arm 26, and the left 34a of the direction selection switch selects rotation in the swing-up direction and the right 34b selects rotation in the swing-down direction. Further, the injection unit switch button 33e serves as a forward / backward selection switch for the first arm 25, the left direction 34a of the direction selection switch serves as a forward selection switch, and the right direction 34b serves as a backward selection switch.

Therefore, CR on the product unloader mode selection screen shown in Fig. 4.
When displayed on the T / MDI4 display screen, the PMC CPU12 is
Then, the product take-out machine manual operation program shown in FIG. 5 is connected and executed. That is, the PMC CPU 12 performs the operation process of FIG. 5 at a constant cycle, and determines whether the product unloader control is turned on (snap S1) and whether manual operation is input (step S2). is doing. Therefore, the operator displays the display field 45 of the softkey 4b displayed on the display screen.
Press the soft key 4b corresponding to the control ON display field 45a of the product unloader 2 displayed in step 4, then the manual operation display field 45d
When the soft key 4b corresponding to is pressed, the PMC CPU 12 detects this (steps S1 and S2) and shifts to the processing of step S3 and thereafter.

On the other hand, the BAC 13 reads the input of the input circuit 20 at a constant cycle,
Shared RAM1 by MA (Direct Memory Access)
The signal input to the input circuit 20 is written in 8 for PMC
From the signal input from the shared RAM 18 via the input circuit 20, the CPU 12 determines whether or not the selection switch buttons 33b, 33c, 33d, 33e of the clamp, ejector, core, and injection unit have been pressed (step S3). ~ S6), if the clamp selection switch button 33b is pressed (step S6)
3) Next, it is determined whether the left direction selection switch button 34a is pressed (step S7), or if not, the right direction selection switch button 34b is pressed (step S9). If the left direction selection switch button 34a is pressed (step S7), the hands 27a, 2
The solenoid valve for opening 7b is turned on (step S8), and the air cylinder of the hand is driven in the hand opening direction to open the hands 27a, 27b. Similarly, the right direction selection switch button
When 34b is pushed (step S9), the solenoid valve for closing the hands 27a, 27b is turned on (step S10). Similarly, with the ejector selection switch button 33c pressed (step S4), the left direction selection switch button is pressed.
When 34a is pushed (step S11), the solenoid valve of the air cylinder is turned on so as to raise the second arm 26, and if the right direction selection switch button 34b is pushed, the second arm 2
Turn on the solenoid valve of the air cylinder to lower 6. In addition, when it is detected that the left direction selection switch button 34a is pressed while detecting that the core selection switch button 33d is pressed (step S5), the second The solenoid valve in the swinging direction of the air cylinder that rotates the arm 26 is turned on (step S16). When it is detected that the right direction selection switch 34b is pressed (step S17), the swing-down direction solenoid valve is turned on (step S18).

Furthermore, when it is detected that the injection unit selection switch button 33e is pressed (step S6) and the left direction selection switch button 34a is pressed (step S19), the first Turn on the solenoid valve in the forward direction of the air cylinder that drives arm 25 of
If the right direction selection switch button 34b is pressed (step S21), the solenoid valve for retracting the first arm 25 is turned on (step S22).

As described above, in the manual operation mode of the product unloader, select the selection switch button of each mechanism of the injection molding machine used during the manual operation mode of the injection molding machine main body, and select each of the axes of the product unloader. The direction selection switch button is used as a switch button for selecting the operation direction of each axis of the product unloading machine, and when different modes are performed by one switch button, different members are manually operated.

Further, in this embodiment, a combination of switch buttons for instructing the operation and operation direction of each axis when the product unloader 2 is manually operated is displayed on the screen of the CRT / MDI 4 so that the operator can easily operate it. .

Although the product take-out machine 2 has four axes in the above-mentioned embodiment, a selection switch for selecting a selection mechanism for manually operating the injection molding machine main body even if it has five or six axes is used. The present invention can be implemented in response to the increased axis.

As described above, according to the present invention, in the injection molding machine having the product take-out device controlled by the control unit of the injection molding machine, when the product take-out device is manually operated, the shaft to be selected and the selected shaft are selected. The command of the operating direction of the shaft is performed by the selection switch button and the direction selection switch button of each mechanism for manual operation of the injection molding machine. Since the operation command for each mechanism or axis during manual operation is performed by a common switch button, it is not necessary to newly provide a command switch button for manual operation of the product unloader, so the operation panel is enlarged. There is no need, the cost is low, and the operability of the operator is good because the number of switch buttons is small.

[Brief description of drawings]

FIG. 1 is a block diagram of means for solving the problems of the prior art adopted by the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a perspective view of an example of a product take-out machine. FIG. 4 is a diagram showing an example of a product unloader mode selection screen, and FIG. 5 is a product unloader manual operation flowchart. 1 ... Numerical control device, 2 ... Product extractor, 3 ... Operation panel, 4 ... CRT / MDI, 33a to 33g ... Selection switch button, 34a, 34b ... Direction selection switch button.

Claims (2)

[Claims] 1. A control of the injection molding machine, comprising: a selection switch button for manually operating each mechanism of the injection molding machine body; and a direction selection switch button for designating an operation direction of the mechanism selected by the selection switch button. In an injection molding machine having a product take-out machine controlled by a section, selecting means for selecting a manual operation mode of the product take-out machine, and each selection switch button when the manual operation mode of the product take-out machine is selected by the selecting means. From the above-mentioned direction selection switch button, and the conversion means for converting the command from the above-mentioned direction selection switch button into the operation direction command of the selected axis of the product unloading machine, Drives the axis of the product unloader commanded by the selection switch button in the direction commanded by the direction selection switch button by the conversion output from the conversion means. Injection molding machine with product take machine, characterized in that it comprises a drive means for. 2. When the manual operation mode of the product unloading machine is selected by the selecting means, there is provided display means for displaying a relationship between the operation combination of the selection switch button and the direction selection switch button and the operation of the product unloading machine. An injection molding machine with a product take-out machine according to claim 1.