JP7285158B2 - Injection molding machine - Google Patents

Description

The present invention is injection molding that has a rotary table on which a plurality of molds are installed, intermittently rotates the rotary table to move the plurality of molds to an injection position, and injects a resin material into the mold at the injection position. Regarding the machine.

An example of a conventional injection molding machine is disclosed in Patent Document 1. The injection molding machine of Patent Document 1 is a two-station vertical injection molding machine. In this injection molding machine, two lower molds are placed on a rotary table at intervals of 180 degrees. It is made to stop at the position which opposes one upper metal mold|die alternately.

Patent No. 4977500

In the injection molding machine described above, a molding defect may occur in any one of the molds. In this case, the operator visually confirms the defective mold among the multiple molds on the rotary table, and displays the molding condition setting screen corresponding to this mold on the display device. Enter new molding conditions. However, the injection molding machine has a plurality of molding condition setting screens corresponding to each of the plurality of molds. Therefore, the operator may erroneously display a molding condition setting screen for a mold other than the mold in which the molding defect occurred. As a result, there is a risk that the operator will erroneously change the molding conditions of a mold that does not have a defective molding without noticing that the wrong molding condition setting screen is being displayed.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an injection molding machine capable of suppressing erroneous change of molding conditions of a mold.

To achieve the above object, an injection molding machine according to the present invention has a rotary table on which a plurality of molds are installed, and intermittently rotates the rotary table to move the plurality of molds. and a control device for displaying a plurality of molding condition setting screens corresponding to each of the plurality of molds on a display device, and a color for individually identifying each of the plurality of molds is assigned to the plurality of molds. and the plurality of molds or the vicinity of the plurality of molds arranged on the rotary table are given a color assigned to each mold, and the control device displays the molding condition setting screen is displayed in the molding condition setting screen, the screen constituent elements assigned the color assigned to the mold corresponding to the molding condition setting screen are displayed in the molding condition setting screen.

In the present invention, it is preferable that the screen component is a background portion of the molding condition setting screen.

To achieve the above object, an injection molding machine according to the present invention has a rotary table on which a plurality of molds are installed, and intermittently rotates the rotary table to move the plurality of molds. and a control device for displaying a molding condition setting screen corresponding to each of the plurality of molds on a display device, and a color for individually identifying each of the plurality of molds is assigned to the plurality of molds. , the plurality of molds installed on the rotary table or the vicinity of the plurality of molds on the rotary table are marked with colors assigned to each mold so that they can be seen, and the control device and displaying the molding condition setting screen in a color assigned to the mold corresponding to the molding condition setting screen.
In the present invention, the plurality of dies installed on the rotary table or the vicinity of the plurality of dies on the rotary table is attached with a magnetic sheet having a color assigned to each die. preferably.
In the present invention, the control device causes the display device to display a plurality of screen call icons corresponding to the plurality of molding condition setting screens, and the screen call icon includes the screen call icon called by an operation input to the screen call icon. It is preferable that the color assigned to the mold corresponding to the molding condition setting screen is given.

According to the present invention, a plurality of molds are assigned colors to uniquely identify them. A plurality of molds or the vicinity of a plurality of molds arranged on a rotary table are given colors assigned to the respective molds. Then, when the molding condition setting screen is displayed on the display device, the screen constituent elements assigned the color assigned to the mold corresponding to the molding condition setting screen are displayed in the molding condition setting screen. Because of this, by comparing the color given to the mold or the vicinity of the mold on the rotary table and the color given to the screen constituent elements of the molding condition setting screen, the correct It is possible to easily determine whether or not the molding condition setting screen has been displayed. Therefore, erroneous change of the molding conditions of the mold can be suppressed.

1 is a front view of an injection molding machine according to one embodiment of the present invention; FIG. 2 is a plan view of a mold clamping device of the injection molding machine of FIG. 1 and its vicinity; FIG. 2 is a diagram illustrating functional blocks of the injection molding machine of FIG. 1; FIG. 2 is a cross-sectional view of the mold clamping device of the injection molding machine of FIG. 1 and its vicinity; FIG. FIG. 4 is a perspective view showing a mold and a magnet sheet attached to the mold; FIG. 2 is a diagram showing an example of a molding condition setting screen displayed on the display device of the injection molding machine of FIG. 1 (No. 1); 2 is a diagram showing an example of a molding condition setting screen displayed on the display device of the injection molding machine of FIG. 1 (No. 2); FIG. 3 is a diagram showing an example of a molding condition setting screen displayed on the display device of the injection molding machine in FIG. 1 (No. 3); FIG. 4 is a diagram showing an example of a molding condition setting screen displayed on the display device of the injection molding machine of FIG. 1 (No. 4); FIG.

An injection molding machine according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a front view of an injection molding machine according to a first embodiment of the invention. FIG. 2 is a plan view of the mold clamping device of the injection molding machine of FIG. 1 and its vicinity. FIG. 3 is a diagram illustrating functional blocks of the injection molding machine of FIG. FIG. 4 is a cross-sectional view of the mold clamping device of the injection molding machine of FIG. 1 and its vicinity. FIG. 5 is a perspective view showing a plurality of molds placed on the rotary table of the injection molding machine of FIG. 1 and magnet sheets attached to each mold.

The injection molding machine 1 of the present embodiment injects and fills a cavity 84 of a mold 80 having an upper mold 81 and a lower mold 82 with a plasticized resin material, and solidifies by cooling to obtain a molded product. is. Although this embodiment shows an example of a configuration in which the present invention is applied to an injection molding machine in which the heating cylinders are arranged along the vertical direction (vertical direction), the heating cylinders are arranged along the horizontal direction. The present invention may be applied to an injection molding machine that has been designed.

The injection molding machine 1 has a configuration in which a plurality of types of molds 80 having different shapes of cavities 84 can be installed on the rotary table 11 . A plurality of molds 80 of the same type having the same shape of the cavity 84 may be installed on the rotary table 11 .

As shown in each figure, the injection molding machine 1 includes a mold clamping device 10 for clamping a mold 80, an injection device 20 for injecting a resin material into the mold 80, and a molded product for taking out the molded product from the mold 80. It has a take-out device 40 , a display input device 60 and a control device 70 .

The mold clamping device 10 has a rotary table 11 and a movable die plate 12 . The mold clamping device 10 also includes a rotary drive mechanism 13 that drives the rotary table 11 to intermittently rotate clockwise by a predetermined angle. and a mold clamping drive mechanism 14 that vertically tightens to generate a mold clamping force.

A plurality of molds 80 are installed on the upper surface 11a of the rotary table 11 at predetermined angular intervals. In this embodiment, the plurality of molds 80 is composed of four molds 80, which are installed on the upper surface 11a at intervals of 90 degrees. When the four molds 80 are separately described, they are denoted as molds 80A, 80B, 80C, and 80D. The multiple molds 80 are moved by the rotary table 11 in a closed state (a state in which the upper mold 81 and the lower mold 82 are stacked). A plurality of molds 80 are positioned at four work stations: an injection station P1, a first cooling station P2, a second cooling station P3 and a demolding station P4.

Symbols "A", "B", "C" and "D" are assigned to the molds 80A, 80B, 80C and 80D as identification codes for individually identifying them. "Blue", "pink", "yellow" and "white" are assigned to the molds 80A, 80B, 80C and 80D. As shown in FIG. 5, a magnetic sheet 86 of a color assigned to each mold is attached to the side surface of each of the molds 80A to 80D. Instead of the side surface of each mold 80, a magnet sheet may be attached near each mold 80 on the upper surface 11a of the rotary table 11. FIG. In addition to the magnet sheet, the metal mold 80 and the rotary table 11 may be directly colored with paint or the like.

The injection station P1 is an injection position where the mold 80 is clamped and the plasticized resin material is injected. The first cooling station P2 and the second cooling station P3 are located at the 3 o'clock and 6 o'clock positions when the injection station P1 is at the 0 o'clock position in plan view, and cool the resin material injected into the mold 80. position. The molded product take-out station P4 is located at the 9 o'clock position when the injection station is at the 0 o'clock position, and is a molded product take-out position where the mold 80 is opened and the molded product is taken out.

In addition to such a configuration, for example, two molds 80 are installed on the upper surface 11a of the rotary table 11 at an interval of 180 degrees, and an injection station P1 is provided at the 0 o'clock position and the molded product at the 6 o'clock position. A configuration having a take-out station P4 may also be used. Alternatively, three molds 80 are installed on the upper surface 11a of the rotary table 11 at intervals of 120 degrees, and an injection station P1 is provided at the 0 o'clock position, and a first cooling station P2 is provided at the 4 o'clock position. It is also possible to adopt a configuration having a molded product take-out station P4 at the time position. The rotary table 11 only needs to move the mold 80 to at least the injection station P1 and the molded article removal station P4.

The injection device 20 is arranged above the movable die plate 12 . The injection device 20 has a heating cylinder 21 having a nozzle 21a facing downward at its tip, and a screw 22 housed in the heating cylinder 21 so as to be rotatable and forward and backward. It also has an injection device drive mechanism 23 for vertically moving the injection device 20 and a screw drive mechanism 24 for rotating and moving the screw 22 forward and backward within the heating cylinder 21 .

When the control device 70 controls the injection device drive mechanism 23 to move the injection device 20 downward, the nozzle 21a of the heating cylinder 21 passes through the through hole 12a provided in the movable die plate 12 and moves above the mold 80. The mold 81 is touched. In this state, the nozzle 21a communicates with the cavity 84 through a resin channel 85 having runners, spools, gates, and the like. The control device 70 controls the screw drive mechanism 24 to rotate the screw 22 to plasticize the resin material, and measures the amount of resin material corresponding to the cavity 84 of the mold 80 . Then, the controller 70 controls the screw drive mechanism 24 to advance the screw 22 and inject and fill the resin material into the cavity 84 .

The molded article extraction device 40 has a mold opening/closing device 41 , an ejector device 42 and an extraction device 43 . The mold opening/closing device 41 has, for example, an air cylinder, and moves the upper mold 81 vertically with respect to the lower mold 82 . The ejector device 42 projects an ejector pin (not shown) provided on the lower mold 82 into the cavity 84 to eject the molded product from the cavity 84 . The extractor 43 moves the molded product extruded from the cavity 84 to a predetermined location.

The display input device 60 has a display device 61 that displays information related to the injection molding machine 1 and an input device 62 that inputs operations. The display device 61 and the input device 62 are connected to the control device 70 . The display device 61 displays various screens in the display area. The input device 62 has input keys and transmits a signal corresponding to each input key to the control device 70 . The display input device 60 has a touch panel as the input device 62, and has a software switch configured by combining a touch panel superimposed on the display area of the display device 61 and icons displayed in the display area.

The control device 70 controls the operation of the injection molding machine 1 as a whole. The control device 70 is configured with a microcomputer.

The control device 70 controls the rotation drive mechanism 13 and the mold clamp drive mechanism 14 of the mold clamping device 10, the injection device drive mechanism 23 and the screw drive mechanism 24 of the injection device 20, and the mold opening/closing device 41 of the molded product unloading device 40. It controls the operation of each driving mechanism such as the ejector device 42 and the unloader 43 .

Specifically, the control device 70, in the molding operation,
(1) controlling the rotary drive mechanism 13 so as to move the plurality of molds 80 placed on the rotary table 11 to the injection station P1, the first cooling station P2, the second cooling station P3, and the molded article removal station P4;
(2) The mold clamping drive mechanism 14, the injection device drive mechanism 23, and the screw drive mechanism 24 are configured to plasticize the resin material to be injected into the mold 80 and to inject the resin material when the mold 80 moves to the injection station P1. to control the
(3) Control the mold opening/closing device 41, the ejector device 42, and the takeout device 43 so as to take out the molded product from the mold 80 at the molded product take-out station P4.

In addition, the control device 70
(4) The display device 61 displays molding condition setting screens 90A, 90B, 90C, and 90D corresponding to the molds 80A, 80B, 80C, and 80D, respectively.

Next, an example of the operation (screen display) of the injection molding machine 1 of the present embodiment described above will be described with reference to FIGS. 6 to 9. FIG.

6 to 9 are diagrams showing examples of molding condition setting screens 90A to 90D displayed on the display device 61 of the injection molding machine of FIG.

The molding condition setting screens 90A to 90D have a title display area 91, an actual measurement value display area 95, a screen operation display area 92, and a molding condition display area 93 as screen components.

The title display area 91 displays the names of the molding condition setting screens 90A to 90D. The measured value display area 95 displays measured values of various molding conditions (molding parameters). The screen operation display area 92 displays icons (software switches) for switching between various screens.

The molding condition display area 93 has a background portion 94, an identification code 96, and screen call icons 97a, 97b, 97c, and 97d as screen components.

The background portion 94 is colored with colors assigned to the molds 80A to 80D corresponding to the molding condition setting screens 90A to 90D. A background portion 94 of the molding condition setting screen 90A is colored blue. A background portion 94 of the molding condition setting screen 90B is colored pink. A background portion 94 of the molding condition setting screen 90C is colored yellow. A background portion 94 of the molding condition setting screen 90D is colored in white. 6 to 9, for the background portion 94, "blue", "pink", "yellow", and "white" are shown in order from the higher dot density to the lower dot density.

The identification code 96 is a code assigned to the molds 80A-80D corresponding to the molding condition setting screens 90A-90D. The identification code 96 may have colors assigned to the molds 80A to 80D corresponding to the molding condition setting screens 90A to 90D.

The screen call icons 97a-97d are icons (software switches) for calling the molding condition setting screens 90A-90D. The control device 70 displays the molding condition setting screen 90A on the display device 61 when the screen call icon 97a is operated. Similarly, the control device 70 displays the molding condition setting screens 90B, 90C and 90D on the display device 61 when the screen call icons 97b, 97c and 97d are operated.

As described above, according to the injection molding machine 1 of the present embodiment, colors are assigned to the molds 80A to 80D for individually identifying them. Molds 80A-80D are labeled with colors assigned to each mold. When the molding condition setting screens 90A to 90D are displayed on the display device 61, the background portions 94 in the colors assigned to the molds 80A to 80D corresponding to the molding condition setting screens 90A to 90D are displayed on the molding condition setting screens 90A to 90D. Displayed in setting screens 90A to 90D. As a result, by comparing the colors applied to the molds 80A to 80D with the colors applied to the background portions 94 of the molding condition setting screens 90A to 90D, the corresponding molds 80A to 80D can be identified. It is possible to easily judge whether or not the correct molding condition setting screens 90A to 90D are displayed. Therefore, it is possible to prevent the molding conditions of the mold 80 from being erroneously changed.

Also, in the molding condition setting screens 90A to 90D, a background portion 94 having a relatively large area is given the color assigned to the molds 80A to 80D. Therefore, the operator can easily visually recognize the colors, and can more easily compare the colors applied to the molds 80A to 80D and the colors applied to the background portion 94 of the molding condition setting screens 90A to 90D. can be done.

In the injection molding machine 1 of the above-described embodiment, colors assigned to the molds corresponding to the molding condition setting screens 90A to 90D called by the screen call icons 97a to 97d by operating the screen call icons 97a to 97d. may be attached. By doing so, it is possible to prevent the operator from calling and displaying the wrong molding condition setting screens 90A to 90D.

Although embodiments of the present invention have been described above, the present invention is not limited to these examples. A person skilled in the art may add, delete, or change the design of the above-described embodiments as appropriate, or combine the features of the embodiments as appropriate, as long as they do not contradict the spirit of the present invention. included in the range of

DESCRIPTION OF SYMBOLS 1... Injection molding machine, 10... Mold clamping apparatus, 11... Rotary table, 11a... Upper surface, 12... Movable die plate, 12a... Through hole, 13... Rotary drive mechanism, 14... Mold clamp drive mechanism, 20... Injection device, DESCRIPTION OF SYMBOLS 21... Heating cylinder 21a... Nozzle 22... Screw 23... Injection device drive mechanism 24... Screw drive mechanism 40... Molded article ejection device 41... Mold opening/closing device 42... Ejector device 43... Extractor, 60 Display input device 61 Display device 62 Input device 70 Control device 80, 80A, 80B, 80C, 80D Mold 81 Upper mold 82 Lower mold 84 Cavity , 85... resin flow path, 86... magnet sheet, 90A, 90B, 90C, 90D... molding condition setting screen, 91... title display area, 92... screen operation display area, 93... molding condition display area, 94... background part, 95 Actual measurement value display area 96 Identification code 97a, 97b, 97c, 97d Screen call icon P1 Injection station P2 First cooling station P3 Second cooling station P4 Molded article removal station

Claims (3)

An injection molding machine having a rotary table on which a plurality of molds are installed and intermittently rotating the rotary table to move the plurality of molds,
A control device for displaying a molding condition setting screen corresponding to each of the plurality of molds on a display device,
Each of the plurality of molds is assigned a color for individually identifying each,
The plurality of molds installed on the rotary table or the vicinity of the plurality of molds on the rotary table are marked with colors assigned to each mold so that they can be seen ,
wherein the control device, when displaying the molding condition setting screen, causes the background portion of the molding condition setting screen to be displayed in a color assigned to the mold corresponding to the molding condition setting screen. Molding machine. A magnetic sheet having a color assigned to each mold is attached to the plurality of molds installed on the rotary table or near the plurality of molds on the rotary table. Item 1. The injection molding machine according to item 1. The control device causes a display device to display a plurality of screen call icons corresponding to the plurality of molding condition setting screens,
3. The injection molding according to claim 1, wherein the screen call icon is assigned a color assigned to a mold corresponding to the molding condition setting screen called by operating the screen call icon. machine.

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