JP2005096295A - Injection molding machine and control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily confirm the setting/input and input value of a temporally continuing control process comprising a cavity changeover control process for altering the flow of a resin and the control processes before and after the cavity changeover control process. <P>SOLUTION: In the injection molding machine employing a plurality of injection control processes B1 and B2, a plurality of the mold clamping control processes A1 and A2 corresponding to the plurality of injection control processes B1 and B2 and a cavity changeover control process C for moving the movable part 10 of a mold 9 between the injection control process B1 and the other injection control process B2 to alter the flow of the resin thereafter, at least one of the plurality of injection control processes B1 and B2 and the plurality of mold clamping control processes A1 and A2 is displayed in a list on one screen 26 of a display device 18 for setting/controlling. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to setting and control of an injection molding machine having a step of moving a movable part of a molding die between an injection control step and another injection control step.

  Conventionally, what was indicated in patent documents 1 and patent documents 2 is known as a screen display of an injection molding machine which has a plurality of injection devices. In Patent Document 1, the first and second injection molding machines 10A and 10B include first and second control devices 1 and 2, respectively, and first and second setting indicators 3 and 4, respectively. It is described that the setting indicators 3 and 4 can be configured to input molding conditions to the respective control devices 1 and 2 so that the molding conditions are displayed.

  Further, Patent Document 2 discloses another display and / or an opening provided on a side surface of an operation panel in which devices including a first display for the first injection device and a first setting device are provided. Alternatively, there is described that another setting device is provided and a sub operation panel corresponding to another injection device is provided in a drawer shape.

  Further, Patent Document 3 discloses an injection graphic image display method for an injection molding machine in which actual measurement data of injection strokes of a plurality of injection units are displayed on a single display screen in the form of being written along the same time axis. Is described. Patent Document 3 describes the effect that the movement during the injection stroke of the two injection units can be simultaneously confirmed on the display screen by the above-described configuration, and the monitoring is highly visible and easy to use.

Furthermore, Patent Document 4 includes (a) a common personal computer including an operation unit, a display unit, a first CPU, and a first memory, (b) a plurality of injection molding machine bodies, and (c) the Each injection molding machine main body is provided with a second CPU and a control device provided with a second memory, and the first CPU sets a plurality of frames on the screen of the display unit. Further, it is described that display means for displaying information on each injection molding machine main body is provided in each frame. And in patent document 4, while being able to set a molding condition easily with a common personal computer, the molding condition of each injection molding machine main body is displayed on one screen of a display part, or a molding result is displayed. The effect of being able to do is described.
JP 2001-219456 A (0014, FIG. 1) Registered Utility Model No. 3063193 (Claim 1, FIG. 1) JP-A-5-269815 (Claim 1, Effect of the Invention, FIG. 4) Japanese Patent Laid-Open No. 10-113966 (Claim 1, Claim 3, Effect of Invention, FIG. 1)

  However, Patent Documents 1 to 4 do not describe at all about the point of facilitating the setting and input of an injection molding machine in which injection is performed before and after time. That is, what is described in Patent Literature 1 and Patent Literature 2 is set and input on a separate display screen for each injection device, and can be set and input by comparing the setting values of the respective injection devices. It was difficult. In addition, a plurality of display screens are required, leading to an increase in cost. Further, since Patent Document 3 uses an injection unit that performs injection almost simultaneously and displays the actual measurement value, it is easy to set and input in an injection molding machine that performs injection before and after time. Are completely different in purpose. Further, Patent Document 4 merely manages information of each injection molding machine main body by a common personal computer, and the injection molding machine main bodies are not associated with each other by a continuous process. Therefore, the purpose of Patent Document 4 is completely different from that of facilitating setting / input of an injection molding machine in which injection is performed before and after time.

  Therefore, the present invention solves the problems of the conventional injection molding machine described above, and turns to cavity switching that changes the flow of a plurality of resins, focusing on the points that were not considered as problems in the conventional injection molding machine. It is an object of the present invention to provide an injection molding machine that facilitates setting / input and confirmation of input values of control processes that are temporally continuous, such as a control process and control processes before and after that.

An injection molding machine according to a first aspect of the present invention includes a plurality of injection control steps, a plurality of mold clamping control steps corresponding to the plurality of injection control steps, and an injection control step and another injection control step. A cavity switching control step of moving the movable part of the molding die to change the flow of the resin thereafter,
In the injection molding machine having the above, at least one of the plurality of injection control processes and the plurality of mold clamping control processes is set and controlled by being displayed in a list on one display screen of the display device.

  The injection molding machine according to a second aspect of the present invention is the injection molding machine according to the first aspect, wherein the mold clamping control step includes two to five primary mold clamping control steps corresponding to the primary injection control step, and a cavity switching control step. Is set and controlled by a setting unit including a first-stage pressure reduction control process corresponding to No. 2 and a second to fifth-stage secondary mold clamping control process corresponding to the second injection control process.

  According to a third aspect of the present invention, there is provided the injection molding machine according to the first or second aspect, wherein the detected value of any of the screw position, the injection pressure, the in-mold pressure, and the mold opening amount is input in advance. Thus, it is possible to switch to the next stage mold clamping force control.

The method for controlling an injection molding machine according to claim 4 of the present invention includes a plurality of injection control steps,
A plurality of mold clamping control processes corresponding to a plurality of injection control processes, and a cavity switching control process in which the movable part of the mold is moved between the injection control process and another injection control process to change the flow of the resin thereafter. The at least one of the plurality of injection control processes and the plurality of mold clamping control processes is set and controlled by displaying a list on one display screen of the display device.

  In the first and fourth aspects of the present invention, there are a plurality of injection control steps, a plurality of mold clamping control steps corresponding to the plurality of injection control steps, an injection control step and another injection control step. An injection molding machine having a cavity switching control step of moving a movable part of a molding die and changing a flow of resin thereafter, and at least one of a plurality of injection control steps and a plurality of mold clamping control steps. Since it is set and controlled by displaying a list on one display screen, there is no need to provide multiple display screens, and setting values can be easily input while comparing setting values between multiple control processes. Became.

  In the invention of claim 2 of the present invention, the mold clamping control process corresponding to the injection control process is switched and controlled by a set value linked to the injection control process, so that the mold clamping control is performed with a more desirable mold clamping force. In addition, it became easier to set and input the control.

  In the invention of claim 3 of the present invention, the controllability of the injection molding machine is improved by switching to the mold clamping force control of the next stage due to the set value inputted in advance. Easy to set and input.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of an injection molding machine and its control device according to the present invention. FIG. 2 is a cross-sectional view for explaining a core back mold which is a molding mold of the present invention and its operation. FIG. 3 is a diagram showing a display screen in the display device of the injection molding machine of the present invention. FIG. 4 is an explanatory view showing the control of the injection molding machine of the present invention. FIG. 5 is a block diagram of a conventional injection molding machine and its control device.

  An outline of an injection molding machine 1 and its control device 2 according to the present embodiment will be described with reference to FIG. In the injection molding machine 1 in the present embodiment, a first injection device 3 that performs primary injection and a second injection device 4 that performs secondary injection are disposed as injection devices. The first injection device 3 and the second injection device 4 are respectively provided with a known screw position detection sensor and an injection pressure detection sensor (not shown). A fixed mold 7 and a movable mold 8 are respectively attached to the fixed plate 5 and the movable plate 6 of the injection molding machine 1.

  The molding die 9 composed of the fixed die 7 and the movable die 8 will be described with reference to FIG. 2. The molding die 9 of this embodiment is called a core back die. The movable mold 8 is provided with a core portion 10 which is a movable portion constituting a part of the cavity forming surface. A rod 11a of a hydraulic cylinder 11, which is an actuator for moving the core portion 10 back and forth in the mold opening / closing direction, is fixed to the back surface 10a of the core portion 10. The fixed mold 7 is used when the molten resin is injected from the first injection device 3 and when the molten resin is injected from the second injection device 4. A second molten resin passage 13 is formed. As shown in FIG. 2 (1), when the core portion 10 is in the advanced position, the fixed mold side cavity forming surface 10b of the core portion 10 abuts against the cavity forming surface 14 of the fixed mold 7. Thus, the second molten resin passage 13 is closed, and only the first molten resin passage 12 is communicated to form the first cavity 15. Further, as shown in FIG. 2 (2), when the core portion 10 is in the retracted position, the back surface 10a of the core portion 10 is brought into contact with the contact surface 7a and the second molten resin passage 13 is opened. The second cavity 16 is formed.

  A mold clamping device 17 for clamping the molding die 9 is fixed to the movable platen 6. The mold clamping device 17 can switch between open loop control and closed loop control, and can control the mold clamping force in multiple stages. The mold clamping device 17 is provided with a mold clamping force detection sensor (not shown) for detecting the mold clamping force.

  A display device 18 is attached to one side of the operation side of the fixed platen 5. The display device 18 comprises a single liquid crystal display, and a touch panel is disposed on the liquid crystal display. By operating the touch panel, a screen for setting the injection control process and mold clamping control process, a screen for displaying actual measurement values, a screen for setting the temperature of the heating cylinder and mold, and production management data are displayed. It is possible to switch to a screen to perform.

  The outline of the injection molding machine 1 of the present embodiment is as described above, but the injection molding machine 1 is not limited to the above. For example, the injection device is not limited to the inline screw type, and may be one using a plunger. The number of injection devices is not limited to two, and may be one or three or more. When there is one injection device, after injecting the molten resin partway through the cylinder of the injection device, the movable part of the molding die 9 is moved, and the remaining molten resin is again injected from the cylinder. Further, the arrangement of the injection devices 3 and 4 may be such that the nozzle directly contacts between the fixed mold 7 and the movable mold 8.

  The molding die 9 is not limited to the core-back die of the above type as long as it has a cavity switching control process in which the movable part of the molding die 9 is moved to change the flow of the resin thereafter. For example, a mold other than the core back mold of the above type, a mold that moves a movable piece in the mold, or a mold that is provided with a valve gate (movable part) to switch or cut the flow of resin. Good. In addition, an injection compression mold having an inlay shape in which the movable mold (movable part) can move with respect to the fixed mold, or an injection compression mold in which the outer wall part (movable part) around the cavity can move is used. Also good. Further, as in a rotary injection molding machine, one or a plurality of molding dies may be provided, and cavity switching control may be performed by moving or rotating a resin injection hole (movable part) of the molding dies.

  The actuators used in the mold clamping device 17, the first injection device 3, the second injection device 4, and the molding die 9 may be those using hydraulic pressure or an electric mechanism. As for the sensor, in addition to the above, a resin pressure sensor for detecting the resin pressure in the cavity and a scale for detecting the mold opening amount may be separately provided. Furthermore, the display device 18 may be a display device unit and an input unit including a keyboard.

  Next, before explaining the control device 2 of the injection molding machine 1, the control devices 56 and 57 of the conventional injection molding machine 51 will be described with reference to FIG. 5 in order to clarify the difference from the prior art. The conventional injection molding machine 51 is the same as the injection molding machine 1 of the present invention in that it includes a first injection device 52, a second injection device 53, a molding die 54, and a mold clamping device 55. In the conventional injection molding machine 51, the primary injection control process by the first injection device 52 and the corresponding primary mold clamping control process by the mold clamping device 55 are controlled by the primary injection / mold clamping control device 56. It is. The secondary injection control process 57, which is another injection control process by the second injection apparatus 53 and the secondary mold clamping control process by the mold clamping apparatus 55 corresponding thereto, is controlled by the secondary injection / mold clamping control apparatus 57. It is. Therefore, the control devices 56 and 57 are required, and two control devices for a normal injection molding machine having one injection device and one mold clamping device are required. The primary injection / clamping control device 56 of the injection molding machine 51 will be described with reference to functional blocks. The control unit 58 that controls the entire injection molding machine 51 has an injection control unit 59, a mold clamping control unit 60, The display controller 61 is connected to control the primary injection control process and the corresponding primary mold clamping control process. The primary injection / clamping control device 56 also includes a mold movable part control unit 62 that moves the movable part 54 a of the molding die 54. The secondary injection / clamping control device 57 is also connected to the control unit 63 by an injection control unit 64, a mold clamping control unit 65, and a display device control unit 66. The next mold clamping control process is controlled separately from the primary side. The display of the primary injection and mold clamping by the primary injection / mold clamping control device 56 and the display of the secondary injection and mold clamping by the secondary injection / mold clamping control device 57 are indicated by display devices 67a and 67b. Were displayed separately.

  Next, a control device 2 for controlling the injection molding machine 1 of the present invention will be described with reference to FIG. Unlike the control devices 56 and 57 of the conventional injection molding machine 51, the injection molding machine 1 of the present invention is operated by a single control device 2. A specific hardware configuration (not shown) of the control device 2 includes a CPU that performs various arithmetic processes and has a timer function, a ROM that stores various sequence control programs of the injection molding machine 1 including the present invention, and various molding conditions. These are composed of a RAM in which the set values are temporarily stored, an I / O port for inputting and outputting various signals, and the like.

  The control device 2 will be described using blocks representing functions. The control device 2 is provided with a control unit 19 for controlling the entire injection molding machine 1, and the control unit 19 performs primary injection control for controlling the injection device. The unit 20 and the secondary injection control unit 21 are connected. A first injection device 3 is connected to the primary injection control unit 20, and a second injection device 4 is connected to the secondary injection control unit 21. In the control device 2, by changing the setting, the primary injection control unit 20 controls the second injection device 4 to perform the primary injection, and the secondary injection control unit 21 controls the first injection device 3. Thus, it can be switched to perform secondary injection.

  Further, a primary mold clamping control unit 22 and a secondary mold clamping control unit 23 for controlling the mold clamping device 17 are connected to the control unit 19. The primary mold clamping control unit 22 and the secondary mold clamping control unit 23 are respectively connected to the mold clamping device 17 of the injection molding machine 1. The control device 2 is provided with a mold movable part control unit 24 that controls the movement of the core part 10 that is a movable part of the molding die 9. It is connected to an electromagnetic switching valve (not shown) that operates a hydraulic cylinder 11 that moves the core 10. The control unit 19 is connected to a display device control unit 25 that controls the display device 18, and the display device control unit 25 is connected to the display device 18.

  Next, the mold clamping control screen 26 displayed on the display device 18 of the injection molding machine 1 of the present embodiment will be described with reference to FIG. In the injection molding machine 1 of the present invention, on one mold clamping control screen 26 displayed on the display device 18, a plurality of mold clamping control processes can be displayed in a list on the same display screen and set and controlled. On the mold clamping control screen 26, a setting unit 27 for performing multistage mold clamping control is arranged. In the setting unit 27, a first setting unit 28, a second setting unit 29, and a third setting unit 30 are arranged in order from the left side, and the first mold clamping described later by the first setting unit 28 to the third setting unit 30. A primary mold clamping control process setting unit 31 for setting the multistage mold clamping control of the control process A1 is configured. The next (fourth from the left) fourth setting unit 32 performs setting of a cavity switching control process setting unit C described later. Furthermore, from the next (fifth from the left), a fifth setting unit 33, a sixth setting unit 34, and a seventh setting unit 35 are arranged in order, and the fifth setting unit 33 to the seventh setting unit 35 will be described later. A secondary mold clamping control process setting unit 36 for setting the multi-stage mold clamping control in the secondary mold clamping control process A2 is configured. Items set / input and displayed in the first setting unit 28 to the seventh setting unit 35 of the setting unit 27 are a mold clamping pressure (MPa), a mold clamping time (sec), and a mold clamping speed (%). Further, the setting unit 27 can be switched so that the mold clamping control in the first setting unit 28 to the seventh setting unit 35 can be performed by either the open loop control or the closed loop control. Further, in the first setting section 28 to the seventh setting section 35, the mold clamping force can be switched so that it can be performed in either a stage or a slope.

  In the present embodiment, the first setting unit 28 to the seventh setting unit of the setting unit 27 are also used when the injection molding machine 1 is used for molding including only the primary injection control process and the corresponding multistage mold clamping control process. This can be dealt with by switching 35. Further, the number of control stages of the primary mold clamping control process setting unit 31 and the secondary mold clamping control process setting unit 36 is not limited to the above, and each may have 2 to 5 stages of setting units.

  In addition, a mold clamping time actual value display unit 37 is arranged below a portion of the mold clamping control screen 26 where a setting value of the mold clamping time is displayed in the setting unit 27. On the lower right side of the mold clamping control screen 26, an actual measurement value display section 38 such as a mold clamping pressure, a mold position, an injection pressure, and a screw position is arranged. Further, a trend data display unit 39 for displaying the measured values in a graph is arranged at the lower center of the left side of the measured value display unit 38. Therefore, the display device 18 of the injection molding machine 1 of the present embodiment can perform setting / input of the primary mold clamping control process A1 and the secondary mold clamping control process A2 and display / confirmation of measured data on a single screen.

  A first switching condition setting unit 40 a and a second switching condition setting unit 40 b are arranged at an intermediate position between the setting unit 27 and the trend data display unit 39 on the mold clamping control screen 26. The first switching condition setting unit 40a switches the control of the primary mold clamping control step A1 described later from the first stage (first setting part 28) to the second stage (second setting part 29) which is the next stage. The set value can be set, input and displayed. In the present embodiment, the injection pressure of the first injection device 3 is set as a switching condition. The second switching condition setting unit 40b controls the second mold clamping control step A2, which will be described later, from the first stage (fifth setting unit 33) to the second stage in the secondary mold clamping control process A2. It is possible to set, input and display a switching condition set value when switching to (sixth setting unit 34). In the present embodiment, the screw position of the second injection device 4 is set as a switching condition. In the first switching condition setting unit 40a and the second switching condition setting unit 40b, in addition to the injection pressure and the screw position, the resin pressure in the cavity, the mold opening amount, and the time measured by the timer can be set as the switching conditions. Further, the first switching condition setting unit 40a and the second switching condition setting unit 40b can be selected so that either the first injection device 3 or the second injection device 4 can be used in the primary injection control step B1. ing. When the first injection device 3 is set to be used in the primary injection control step B1 as in the mold clamping control screen 26 of FIG. 3, the secondary injection control step B2 is automatically performed in the second injection device. 4 is used and displayed.

  In this embodiment, the case where the primary mold clamping control process A1 and the secondary mold clamping control process A2 are displayed in a list on the same screen of the display device 18 and set and controlled has been described. It suffices that at least one of the mold clamping control processes A1 and A2 and the plurality of injection control processes B1 and B2 is set and controlled in a list on the same display screen. Therefore, when a plurality of injection control processes B1 and B2 are displayed as a list on the same display device 18, it is possible to set and input the other injection control process as compared with the set value of one injection control process.

  Next, control of the injection molding machine 1 of the present embodiment will be described with reference to FIG. First, after the molded product is taken out in the mold open state, the movable mold 8 is moved and the mold is closed. Around that time, the core portion 10 of the molding die 9 is advanced, and a first cavity 15 is formed between the fixed die 7 and the movable die 8. Next, a signal is sent from the primary mold clamping control unit 22 of the control device 2 to the mold clamping device 17, and control of the first stage (first setting unit 28) of the primary mold clamping control process A1 is started. At this time, the initial mold clamping device 17 is controlled by open loop control, and is switched to closed loop control when the mold clamping pressure reaches a predetermined mold clamping pressure. Therefore, the execution value of the process can be accurately detected and can be smoothly switched by the closed loop control after the rise. Then, with a slight delay time, a signal is sent from the primary injection control unit 20 of the control device 2 to the first injection device 3, and the primary injection control process B1 is started. In the primary injection control process B1, the molten resin is injected and filled into the first cavity 15 through the first molten resin passage 12 by advancing a screw (not shown) of the first injection device 3. At this time, when the detection value of the injection pressure sensor of the first injection device 3 reaches a preset value, the mold clamping force control of the primary mold clamping control step A1 is performed from the first stage (first setting unit 28). Switching to the next second stage (second setting unit 29), the mold clamping control of the second stage (second setting unit 29) and the third stage (third setting unit 30) is successively performed. During this time, pressure holding control is performed for the primary injection control step B1. For example, by lowering the mold clamping force of the third stage (the third setting unit 30), the pressure removal speed is increased to shorten the cycle and to save energy.

  When the mold clamping time set in the primary mold clamping control process setting unit 31 is timed, the primary mold clamping control process A1 is finished, and the core part 10 in the molding die 9 is moved backward by the hydraulic cylinder 11, Thereafter, the process is switched to a cavity switching control process C which is a pressure reduction control process for changing the flow of resin in the mold. In the cavity switching control process C, the mold clamping force is reduced to 0 or a predetermined set value as the mold clamping control of the fourth stage (fourth setting unit 32) counting from the beginning. The reason is that if the mold clamping force is greater than or equal to a predetermined value, the movement of the movable part of the molding die 9 may be hindered. Then, the core 10 of the molding die 9 is moved by a signal from the mold movable part control unit 24 of the control device 2 and communicated with the second molten resin passage 13 in the molding die 9 and is still filled with the molten resin. A second cavity 16 that has not been formed is formed.

  Then, when the mold clamping time set in the fourth setting unit 32 is timed and the cavity switching control step C is completed, a signal is sent from the secondary mold clamping control unit 23 of the control device 2 to the mold clamping device 17. The next mold clamping control process A2 is started. The mold clamping control in the first stage (fifth setting unit 33) of the secondary mold clamping control process is initially controlled by open loop control, and is switched to closed loop control when the mold clamping pressure reaches a predetermined mold clamping pressure. Next, the secondary injection control process B <b> 2 is started with a slight delay time, and the molten resin is injected and filled into the second cavity 16 from the second injection device 4 through the second molten resin passage 13. At this time, when the detected value of the screw position of the second injection device 4 reaches a preset value, the mold clamping force control in the secondary mold clamping control step A2 is performed from the first stage (fifth setting unit 33) to 2. The second stage (sixth setting part 34) and the third stage (seventh setting part 35) are controlled in sequence in order. During this time, pressure holding control is performed for the primary injection control step B1. Then, when the predetermined time is counted, the mold clamping control at the third stage (seventh setting unit 35) of the secondary mold clamping control step A2 is completed, and the mold opening is performed after depressurization. Note that the primary mold clamping control process A1 and the secondary mold clamping control process A2 of the injection molding machine 1 of the present invention may be controlled in multiple stages of 2 to 5 stages, respectively. Further, only one of the primary mold clamping control process A1 and the secondary mold clamping control process A2 may be controlled in multiple stages.

  The present invention is not enumerated one by one, but is not limited to the one described above, and it goes without saying that the present invention is also applied to those modified by a person skilled in the art based on the gist of the present invention.

It is a block diagram of the injection molding machine of this invention, and its control apparatus. It is sectional drawing explaining the core back metal mold | die which is a shaping | molding metal mold | die of this invention, and its operation | movement. It is a figure which shows the display screen in the display apparatus of the injection molding machine of this invention. It is explanatory drawing which shows control of the injection molding machine of this invention. It is a block diagram of the conventional injection molding machine and its control apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Injection molding machine 2 Control apparatus 3 1st injection apparatus 4 2nd injection apparatus 5 Fixed board 6 Movable board 7 Fixed mold 7a Contact surface 8 Movable mold 9 Molding mold 10 Core part
DESCRIPTION OF SYMBOLS 11 Hydraulic cylinder 12 1st molten resin channel | path 13 2nd molten resin channel | path 14 Cavity formation surface 15 1st cavity 16 2nd cavity 17 Clamping device 18 Display apparatus 19 Control part 20 Primary injection control part 21 Secondary injection control part 22 Primary mold clamping control unit 23 Secondary mold clamping control unit 24 Mold movable unit control unit 25 Display device control unit 26 Mold clamping control screen 27 Setting unit 28 First setting unit 29 Second setting unit 30 Third setting unit 31 1 Next mold clamping control process setting part 32 4th setting part 33 5th setting part 34 6th setting part 35 7th setting part 36 Secondary mold clamping control process setting part
37 Actual mold clamping time display section 38 Actual measurement display section 39 Trend data display section 40a, 40b Switching condition setting section A1 Primary mold clamping control process A2 Secondary mold clamping control process B1 Primary injection control process
B2 Secondary injection control process C Cavity switching control process C

Claims (4)

A plurality of injection control processes;
A plurality of mold clamping control steps corresponding to the plurality of injection control steps;
A cavity switching control step of moving the movable part of the molding die between the injection control step and another injection control step to change the flow of the resin thereafter;
In an injection molding machine having
At least one of the plurality of injection control steps and the plurality of mold clamping control steps is:
An injection molding machine characterized in that a list is displayed and set and controlled on one screen of a display device. About the mold clamping control process,
2 to 5 steps of primary mold clamping control process corresponding to the primary injection control process;
A one-stage decompression control step corresponding to the cavity switching control step;
2. The injection molding machine according to claim 1, wherein the injection molding machine is set and controlled by a setting unit including 2 to 5 stages of secondary mold clamping control process corresponding to the secondary injection control process. About the mold clamping control process,
2. The mold clamping force control of the next stage is switched when a detected value of any one of a screw position, injection pressure, in-mold pressure, and mold opening amount becomes a preset input value. Or the injection molding machine of Claim 2. A plurality of injection control processes;
A plurality of mold clamping control steps corresponding to the plurality of injection control steps;
A cavity switching control step of moving the movable part of the molding die between the injection control step and another injection control step to change the flow of the resin thereafter;
In an injection molding machine having
At least one of the plurality of injection control steps and the plurality of mold clamping control steps is:
A control method for an injection molding machine, wherein a list is displayed and set and controlled on one screen of a display device.

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