JP2008284779A - Injection molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the work for manufacturing operation control conditions when two different moldings are produced alternately every intermittent rotation of a rotary table in a two stage-type injection molding machine using the rotary table, and to efficiently use a memory means. <P>SOLUTION: In an image for selecting and setting the operation control conditions, the information to indicate a second mold and information to indicate a plurality of first molds which can be used in combination with the second mold are indicated in a catalog. A controller, by selecting the combination of the two first molds, sets the operation control conditions peculiar to a molded product of one selected product classification, the operation control conditions peculiar to a molded product of the other selected product classification, and the operation control conditions common to the molded products of the two selected product classifications as the control conditions of continuous automatic molding operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an injection molding machine in which two molds are mounted on a rotary table at intervals of 180 °, and more particularly to an injection molding machine capable of obtaining a different molded product for each intermittent rotation of the rotary table.

  Two lower molds are mounted on the rotary table at an interval of 180 °, and the rotary table is intermittently rotated in the forward and reverse directions by 180 °, so that one of the two lower molds is alternately one ( (One provided only) is stopped at a position facing the upper mold, and a pair of the upper mold and the lower mold facing each other is clamped, and one piece arranged corresponding to the upper mold 2. Description of the Related Art A two-stage type injection molding machine in which a molten resin is injected and filled into a cavity by an injection unit (provided only) is known.

  Such an injection molding machine is convenient for use in insert molding, and the placement and positioning of the insert article in the mold, the ejection of the molded product, and the injection and filling of the molten resin are performed in separate stages. Thus, the molding cycle can be shortened.

  By the way, in the two-stage type injection molding machine as described above, there is a restriction that the mold thickness is the same, but the type of the lower mold (the shape of the lower mold) mounted on the rotary table is different. Thus, different molded products of the same resin material can be obtained for each intermittent rotation of the rotary table. In this way, if different molded products can be produced by one machine (injection molding machine), for example, the molded product A and the molded product B can be obtained at the same time. Become. Furthermore, since the molding products A and B having similar molding production times have the same raw material resin lot, the resin quality of the molding product A and the molding product B is equivalent, and the molding product A and molding are the same. When an industrial product is produced by combining the product B, the quality of the combined product of the molded products A and B can be improved. Therefore, attention has been paid to the fact that molded products of two product types can be obtained without exchanging molds. At the production site of the cell production method (table production method), two products have recently been developed with one machine. Molding of different types of molded products is often done.

  In the two-stage type injection molding machine as described above, in order to mold the molded products A and B of two product types by continuous automatic molding operation, the operation control conditions common to the molded product A and the molded product B are The operation control conditions unique to the molded product A and the operation control conditions unique to the molded product B need to be set. Conventionally, the operation control conditions of the entire machine for forming such a molded product Ax and a molded product Bx are collectively handled as a certain operation control condition, and the operation control of the entire machine set by the operator is performed. The condition is stored in, for example, a removable storage medium as data of one operation control condition defined by a combination of a certain molded product Ax and a certain molded product Bx. In other words, conventionally, an operation control condition for the entire machine is created for each combination of two product types, and this is stored in a removable storage medium or the like. When setting the operation control condition after mold replacement, I was trying to use it.

  By the way, when there are only two lower molds L1 and L2 that can be used for a certain upper mold U1, a combination of two product types (two lower molds are Even if an operation control condition for the entire machine is created for each combination and stored as one group, memory resources are not compressed. However, when there are four lower molds L1 to L4 that can be used for a certain upper mold U1, a combination of two product types (a combination of two lower molds) The number is 6, and when there are five lower molds L1 to L5 that can be used for a certain upper mold U1, a combination of two product types (between the two lower molds The number of combinations) is 10, and when the operation control conditions created for each combination of two product types are stored, the more lower molds that can be used for one upper mold, the more Squeeze memory resources. Further, when there are a plurality of upper molds U1 to Un as upper molds and there are three or more lower molds that can be used for each upper mold, the number of combinations of two product types Will continue to increase, further straining memory resources.

  In addition, since it is necessary to create operation control conditions for every combination of all product types, the more the number of combinations of two product types increases, the more time is required to create operation control conditions. There is also a problem.

  In addition, as described above, when the number of combinations of two product types is large, an operation control condition for the entire machine is created and stored for each combination of two product types (a combination of two lower molds). Therefore, since the number of stored operation control conditions is large, it becomes difficult to quickly find a desired operation control condition from a list display of operation control conditions on the display device.

  The present invention has been made in view of the above points, and an object of the present invention is to obtain two different molded products alternately for each intermittent rotation of the rotary table in a two-stage type injection molding machine using the rotary table. In this case, the creation of operation control conditions can be reduced, and the memory means for storing the operation control conditions can be used efficiently.

  In order to achieve the above-described object, the present invention provides two first molds mounted on a rotary table at intervals of 180 °, and the two first molds by intermittent rotation of the rotary table every 180 °. One second mold disposed at a position where the two molds face each other, and one injection unit disposed corresponding to the second mold, and the first mold and the second mold facing each other. In an injection molding machine that performs injection by the injection unit with a pair of molds clamped, when the two first molds correspond to two molded products of different product types, A combination of an operation control condition unique to a molded product of one product type corresponding to the first mold and an operation control condition unique to a molded product of the other product type corresponding to the other first mold Operation control condition selection / setting images that can be selected A controller that can be displayed on a display device, and the operation control condition selection / setting image includes a plurality of pieces of information indicating the second mold and a combination of the second mold and the second mold. The information indicating the first mold is displayed in a list, and the controller selects a combination of the two first molds to select a molded product of one selected product type. Control of continuous automatic molding operation with unique operation control conditions, operation control conditions unique to the molded product of the other selected product type, and operation control conditions common to the molded products of the two selected product types Configured to set as a condition.

In the present invention, for example, when a plurality of different first molds (for example, lower mold) can be used for one second mold (for example, upper mold) whose mold identifier is Um, For any combination of two lower molds selected from a plurality of lower molds, the combination of two product types corresponding to the combination of these two lower molds is 2 Focusing on the fact that the operation control conditions common to the molded products of one product type are always the same, this common operation control condition is stored in association with the mold identifier Um of a certain upper mold. . If the lower molds that can be used for one upper mold Um are, for example, four lower molds of mold identifiers Lm, Ln, Lo, and Lp, the lower mold of the mold identifier Lm is used. The operation control conditions unique to the molded product A corresponding to the mold are stored in association with the mold identifier Lm of the lower mold, and the operation unique to the molded product B corresponding to the lower mold of the mold identifier Ln is stored. The control conditions are stored in association with the mold identifier Ln of the lower mold, and the operation control conditions unique to the molded product C corresponding to the lower mold of the mold identifier Lo are set as the mold identifier of the lower mold. The operation control condition unique to the molded product D corresponding to the lower mold of the mold identifier Lp is stored in association with the lower mold identifier Lp. In the operation control condition selection / setting image, for example, the upper mold identifier Um and the lower mold identifiers Lm, Ln, Lo, Lp that can be used for this mold identifier Um Are displayed as a list, and a combination of any two lower molds from the mold identifiers Lm, Ln, Lo, Lp of the lower mold, for example, the lower mold of the mold identifier Lm and the lower mold of the mold identifier Lp When the operator selects a combination of molds, the above-described common operation control conditions associated with the mold identifier Um of the upper mold and the molding product A corresponding to the lower mold of the selected mold identifier Lm are unique. The operation control condition and the operation control condition unique to the molded product D corresponding to the lower mold of the mold identifier Lp are combined, and the combined operation control condition is used as the operation control condition for the entire machine for continuous automatic operation. Set.
Therefore, the operation control conditions corresponding to the upper mold of the mold identifier Um and the operation control conditions associated with the lower molds of the mold identifiers Lm, Ln, Lo, and Lp are created and stored in advance. Compared with the prior art, the creation of operation control conditions can be reduced, and the memory means for storing operation control conditions can also be used efficiently. Furthermore, in the operation control condition selection / setting image, a plurality of lower mold die identifiers that can be used for the upper die in association with the upper die die identifier are displayed. Therefore, using the mold identifier of the upper mold as a guideline, you can quickly find the desired two lower molds and select and determine the combination of the two lower molds. It is easy to use at the production site where replacement is performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 relate to an injection molding machine according to an embodiment of the present invention (hereinafter referred to as the present embodiment). The injection molding machine of the present embodiment has two lower molds (claims) on a rotary table. Are mounted at intervals of 180 °, and the rotary table is intermittently rotated in the forward and reverse directions by 180 °, so that one of the two lower dies is alternately one ( Example of application to a vertical clamping and vertical injection type injection molding machine of a two-stage type that is stopped at a position facing the upper mold (which is the only one provided). It is. The present invention is also applicable to a vertical clamping / horizontal injection type injection molding machine, a horizontal clamping / horizontal injection type injection molding machine, and a horizontal clamping / vertical injection type injection molding machine. In the injection molding machine of the present invention, the two molds mounted on the rotary table are movable side molds that move forward and backward when the mold is opened and closed, even if they are fixed molds that do not move forward and backward when the mold is opened and closed. Also good.

  FIG. 1 is an explanatory view seen from the right side showing the outline of the mechanism of the injection molding machine of the present embodiment. In FIG. 1, reference numeral 1 denotes a frame constituting a skeleton of a machine (injection molding machine), and 2 denotes a rotation assembled on an upper structure portion 1 a of the frame 1 so as to be rotatable via a rotation holding portion 3. A table 4 is a table rotation motor (table rotation electric servomotor) attached to the upper structure portion 1 a of the frame 1, and 5 is disposed in the upper structure portion 1 a of the frame 1. A rotation transmission mechanism 6 that transmits rotation to the rotary table 2 to rotate the rotary table 2 is two lower molds mounted on the rotary table 2 at intervals of 180 °. The lower mold 6 is intermittently rotated by 180 ° of the rotary table 2, and the mold opening / closing / injection stage S 1 (the right side in FIG. 1 corresponds to the position near the back of the machine) and the eject stage S 2 (in FIG. 1). The lower mold 6 positioned on the mold opening / closing / injection stage S1 is located on the left side of the mold opening / closing / injection stage S1. The upper die 7 attached to the movable die plate 9 constitutes a pair of dies.

  8 is a tail stock that is disposed below the upper structure 1a of the frame 1 in the mold opening / closing / injection stage S1 and can move up and down with respect to the upper structure 1a, and 9 is a frame in the mold opening / closing / injection stage S1. The movable die plate 10 is disposed above the upper structure portion 1a and can move up and down with respect to the upper structure portion 1a. One end of the movable die plate 10 is fixed to the tailstock 8 and the other end is fixed to the movable die plate 9. The three tie bars are connected by the tie bar 10 so that the tail stock 8 and the movable die plate 9 move up and down integrally. Of the three tie bars 10, the tie bar 10 located at the center of rotation of the turntable 2 is slidable in the vertical direction through the upper structure portion 1 a and the rotation holding portion 3 of the frame 1, and the rest The two tie bars 10 are slidable in the vertical direction through the upper structure portion 1a of the frame 1. An upper mold 7 is attached to the lower surface side of the movable die plate 9, and an injection unit 11 is mounted on the upper surface side of the movable die plate 9. The injection unit 11 moves up and down together with the movable die plate 9. It is supposed to be.

  12 is a mold opening / closing motor (electric servo motor for mold opening / closing) mounted on the tail stock 8, and 13 is a ball screw mechanism in which a rotating portion (here, for example, a nut body) is rotatably held by the tail stock 8. Thus, the rotation of the mold opening / closing motor 12 is transmitted to the rotating portion of the ball screw mechanism 13, and the linearly moving portion (here, for example, the ball screw shaft) of the ball screw mechanism 13 screwed into the rotating portion thereby moves linearly (here, , Move up and down). 14 is provided between the lower surface side of the upper structure portion 1a of the frame 1 and the upper surface side of the tail stock 8 in the mold opening / closing / injection stage S1 (the lower surface side of the upper structure portion 1a and the upper surface side of the tail stock 8). The cross head 14a, which is an input end of the force of the toggle link mechanism 14, is vertically moved by the linearly moving portion of the ball screw mechanism 13 that converts the rotation of the mold opening / closing motor 12 into a linear motion. The toggle link mechanism 14 is driven to be folded or extended.

  In the present embodiment, when the toggle link mechanism 14 is driven to extend (when the crosshead 14a is driven up), the tailstock 8 is driven down, and the tie bar 10, the movable die plate 9, The mold 7 and the injection unit 11 are lowered, and the upper mold 7 is lowered with respect to the lower mold 6 in the mold opening / closing / injection stage S1, so that the mold is closed. Is lifted by a predetermined amount, and a clamping force is applied to the upper mold 7 and the lower mold 6. Further, when the toggle link mechanism 14 is driven to be folded (when the cross head 14a is driven downward), the tail stock 8 is driven upward, and the tie bar 10, the movable die plate 9, and the upper die 7 are integrated therewith. The injection unit 11 is raised so that the mold is opened.

  In FIG. 1, 15 is an eject motor (electric servo motor for eject) attached to the lower side of the upper structure portion 1a of the frame 1 in the eject stage S2, and 16 is a rotating portion (here, for example, a nut). The rotation of the eject motor 15 is transmitted to the rotating portion of the ball screw mechanism 16 and is rotated by the ball screw mechanism that is rotatably held below the upper structure portion 1a of the frame 1 in the eject stage S2. The linearly moving portion (here, for example, a ball screw shaft) of the ball screw mechanism 16 screwed into the portion moves linearly (here, moves up and down). Reference numeral 17 denotes an eject plate disposed so as to be movable up and down by a predetermined amount below the upper structure portion 1a of the frame 1 in the eject stage S2. The eject plate 17 includes a linear motion portion of the ball screw mechanism 16. The end portion is fixed, and the eject plate 17 is driven up or down by the driving force of the eject motor 15. The eject plate 17 is configured to move up and down along a plurality of guide pins 18 that are suspended and fixed to the upper structure portion 1a of the frame 1. A first eject pin 19 is erected on the eject plate 17. It is fixed. The first eject pin 19 is inserted through the upper structure portion 1a of the frame 1 and the through hole of the rotary table 2, and can be moved up and down in the lower mold 6 in the eject stage S2. The lower mold 6 is provided with a second eject pin (not shown) that can be moved up and down by a predetermined amount. The second eject pin can be driven to be pushed up by the first eject pin 19. .

  When the eject plate 17 is driven upward by the driving force of the eject motor 15 (when the eject drive is driven forward), the first eject pin 19 comes into contact with a second eject pin (not shown). The first eject pin 19 pushes up the second eject pin, and the molded product is ejected from the lower mold 6. When the eject advancement process is completed, the eject plate 17 is driven downward by the drive force of the eject motor 15 (eject backward drive), and the first eject pin 19 is also lowered together with the eject plate 17. When the first eject pin 19 is lowered, the second eject pin (not shown) in the mold is lowered by the spring force. When such an eject advance / retreat process is completed, the molded product released from the lower mold 6 in the eject advance process is taken out manually by a robot or an operator. After the molded product is taken out, the insert article is placed and positioned on the lower mold 6 in the eject stage S2 by manual operation by a robot or an operator as necessary.

  Here, in the present embodiment, the two lower molds 6 mounted on the turntable 2 have the same mold thickness (die height), but have different shapes of the cavity forming surfaces. Different shaped products can be alternately obtained for every 180 ° rotation of the table. In addition, when two lower molds 6 having different shapes are mounted on the rotary table 2, an insert-molded product having a different shape can be obtained for each 180 ° rotation of the rotary table. It is possible to obtain a product or alternately obtain an insert-molded product and a non-insert-molded product, and it is possible to appropriately select which of these production forms is adopted.

  FIG. 2 is a simplified view of the injection molding machine according to the present embodiment as viewed from above. In FIG. 2, the injection unit 11 is omitted. As shown in FIG. 2, one of the three tie bars 10 arranged in an equilateral triangle is positioned at the rotation center of the rotary table 2, and two lower molds 6 are provided on the rotary table 2. It is mounted at intervals of 180 °.

  FIG. 3 is a block diagram showing a simplified configuration of the control system of the injection molding machine according to the present embodiment. In FIG. 3, 31 is a system controller that controls the entire machine (injection molding machine), 32 is an input device for an operator to perform various input operations, and 33 is an image of various display modes for the operator. 34 is a sensor group including a number of sensors (position sensor, speed sensor, pressure sensor, rotation amount detection sensor, temperature sensor, etc.) disposed in each part of the machine, and 35 is a machine. A driver group comprising a number of drivers (motor drivers, heater drivers, etc.) for driving and controlling actuators (motors 4, 12, 15, motors of the injection unit 11, etc.) and heaters arranged in the respective parts Is a USB memory mounting unit to which the USB memory can be attached and detached, 37 is a USB memo which is a removable storage medium mounted to the USB memory mounting unit 36. It is.

  In the system controller 31, 41 is a general control unit, 42 is an operation condition setting storage unit, 43 is a measured value storage unit, 44 is an operation process control unit, 45 is a display control unit, and 46 is a USB memory read / write control. (Hereinafter referred to as a USB memory R / W control unit).

  The overall control unit 41 performs overall control of each unit in the system controller 31. In FIG. 3, the connection for connecting the overall control unit 41 and each part in the system controller 31 is omitted for convenience of illustration. However, the overall control unit 41 is connected to each part in the system controller 31 with respect to the signal. Send and receive to understand the overall situation, interpret commands from external inputs and measurement information from the sensor group 34, etc., and give commands to each part in the system controller 31 to perform control operations according to the situation Output.

  The operation condition setting storage unit 42 includes a common operation condition setting storage unit 42a, a first molded product operation condition setting storage unit 42b, and a second molded product operation condition setting storage unit 42c. In the operation condition setting storage units 42a, 42b, and 42c, the operation control conditions input using the input device 32 or input from the USB memory 37 connected to the system controller 31 can be stored in a rewritable manner. Has been. In the common operating condition setting storage unit 42a, when producing both the first molded product and the second molded product, only one of the first molded product and the second molded product is produced. At least as operating conditions common to the first molded product and the second molded product, that is, as steps in a molding cycle common to the first molded product and the second molded product. The operation control conditions for each step of table rotation, mold closing (clamping), mold opening, eject forward, and eject backward are set and stored. In the first molded product operating condition setting storage unit 42b, operating conditions unique to the first molded product, that is, operation control conditions for at least the weighing and injection processes of the first molded product are set and stored. The operation condition setting storage section 42c for the second molded product sets and stores an operation condition unique to the second molded product, that is, an operation control condition for at least the weighing and injection processes of the second molded product. The When only one of the first molded product and the second molded product is produced by the machine of the present embodiment (when a single type of molded product is produced), the first operating condition setting for the molded product is performed. The operation control condition is set / stored only in either the storage unit 42b or the second molded product operation condition setting storage unit 42c.

  In the measurement value storage unit 43, measurement information (position information, speed information, pressure information, rotation angle information, rotation number information, temperature information, etc.) of each part of the machine is captured and stored in real time by the sensor group 34 or the like. .

  The operation process control unit 44 measures the measurement information in the measurement value storage unit 43 based on the operation control program for each process prepared in advance and the set value of the operation condition for each step stored in the operation condition setting storage unit 42. The driver group 35 is driven and controlled while referring to its own timing information, and the operation of each process is executed.

  Based on various display processing programs prepared in advance and fixed display data, the display control unit 45 stores the contents of the operating condition setting storage unit 42 and the measured value storage unit 43 or the system controller 31 as necessary. With reference to the contents of the connected USB memory 37, images in various display modes are generated and displayed on the display device 33.

  The USB memory R / W control unit 46 reads the contents written in the USB memory 37 attached to the USB memory attachment unit 36, converts the read contents appropriately as necessary, and performs overall control unit 41. To the display control unit 45, or to the operating condition setting storage unit 42. Also, the USB memory R / W control unit 46 reads the operating conditions set and stored by the operator in the operating condition setting storage unit 42 using the input device 32, and appropriately converts the read contents as necessary. Then, the data is transferred to the USB memory 37 attached to the USB memory attachment unit 36, and the transfer data is stored in the USB memory 37.

  The data transferred from the USB memory R / W control unit 46 to the display control unit 45 is used by the display control unit 45 to display an operation condition selection / setting image to be described later. The data notified from the USB memory R / W control unit 46 to the overall control unit 41 controls whether or not the combination of the two lower molds selected by the operator using the operation condition selection / setting image described later is appropriate. Used by the control unit 41 for determination. The data transferred from the USB memory R / W control unit 46 to the operation condition setting storage unit 42 is set and stored in the operation condition setting storage unit 42 as an operation control condition for performing continuous automatic molding operation.

  FIG. 4 is a diagram showing an outline of an example of data stored in the USB memory 37, and FIG. 4A shows a certain upper mold 7 and a lower mold that can be used for the upper mold 7. 6 is a diagram showing a relationship with FIG. In the example shown in FIG. 4A, the lower mold (lower mold) 6 that can be used for the upper mold (upper mold) 7 whose mold identifier is U1 has the mold identifiers L01, L02, L03, L12 are lower molds 6, and lower molds (lower molds) 6 that can be used for upper molds (upper molds) 7 having a mold identifier U2 have mold identifiers L04, L05, It represents the lower mold 6 of L06 and L16. In the USB memory 37, for example, a lower mold identifier Lm that can be used for an upper mold whose mold identifier is Um is associated with the upper mold identifier Um. , Ln, Lo, and Lp are stored. Such correspondence is stored as many as the number of prepared upper dies. Note that the number of mold identifiers of the lower mold associated with the mold identifier of the upper mold can be arbitrarily increased or decreased.

  4B is stored in the USB memory 37 in association with the common operation control condition stored in association with the mold identifier of each upper mold and in association with the mold identifier of each lower mold. It is a figure which shows the example with the shaping | molding product intrinsic | native operation conditions which are. In the example shown in FIG. 4B, the common operation control conditions “U1”, “U2”, “U3”,... Are associated with the upper mold die identifiers U1, U2, U3,. Are stored in correspondence with the mold identifiers L01, L02, L03, L04, L05, L06,... "L03", "L04", "L05", "L06",... Are stored.

  The above common operation control condition is, for example, when two or more different lower molds can be used for one upper mold, and any two lower molds selected from the plurality of lower molds. It is a common operation control condition for any combination of molds (that is, any combination of two types of molded products), and as described above, molding is common to two types of molded products. At least the operation control conditions of each step of the table rotation, mold closing (clamping), mold opening, ejecting forward, ejecting backward as each process in the cycle. The unique operation control condition for each molded product is an operation control condition unique to each molded product corresponding to each lower mold, and as described above, at least the operation control conditions for the weighing and injection processes. is there. The operation control conditions for nozzle touch / back can be included in the specific operation control conditions for each molded product as necessary.

  FIG. 5 is a diagram illustrating an example of an operation control condition selection / setting image in the present embodiment. The operation control condition selection / setting image is displayed on the display screen of the display device 33 when the operator appropriately operates the input device 32 with the USB memory 37 mounted on the USB memory mounting portion 36. .

  In FIG. 5, 51 is a number display column for selecting a lower die (lower die), 52 is a die identifier display column for a lower die (lower die), and 53 is an upper die (upper die). 54) is a display column for a mold identifier, 54 is a date display column for storing the unique operation control condition for each molding product corresponding to the lower mold (lower mold) in the USB memory 37, and 55 is a lower mold (lower This is a display field for comments regarding the molded product corresponding to the mold. As shown in FIG. 5, there are a plurality of upper mold (upper mold) mold identifiers and a plurality of lower mold mold identifiers that can be used in combination with the upper mold. It is designed to display a list across the set, and by this display, which lower mold is the lower mold that the machine operator can use in combination with a certain upper mold Can be grasped easily and reliably.

  In FIG. 5, 56 is an input field for a mold identifier of a lower mold on one side (A side) mounted at a mold mounting position on one side (A side) of the rotary table 2, and 57 is a rotary table. 2, in the input field for the mold identifier of the lower mold on the other side (B side) mounted at the mold mounting position on the other side (B side), the operator enters the input device 32 in the input field 56 or the input field 57. By using the selected number from the display field 51, the mold identifier or rotation of the lower mold at the mold mounting position on one side (A side) of the turntable 2 is entered in the input field 56 or the input field 57. The mold identifier of the lower mold of the mold mounting position on the other side (B side) of the table 2 is input and displayed. 58 is a display field for the mold identifier of the selected upper mold, and the upper mold corresponding to the selected lower mold is entered by inputting the mold identifier of the lower mold in the input field 56 or the input field 57. The mold identifier of the mold is automatically displayed. In the example shown in FIG. 5, the lower mold of the mold identifier L03 is selectively input as the lower mold on one side (A side), and the lower mold of the mold identifier L12 is used as the lower mold on the other side (B side). The mold is selected and input, and U1 is displayed as the mold identifier of the upper mold corresponding to the selected lower mold.

  The operator confirms the display contents of the input fields 56 and 57 and the display field 58 as shown in FIG. 5, and uses the “determine” key icon 59 in the operation control condition selection / setting image to control the operation. The general controller 41 of the system controller 31 is instructed to confirm that the setting content in the condition selection / setting image has been confirmed. In response to this, the overall control unit 41 gives a command to the USB memory R / W control unit 46, and from the USB memory 37 to the common operation control condition “U1” corresponding to the mold identifier U1 and the mold identifier L03. The corresponding unique operation control condition “L03” for each molded product and the unique operation control condition “L12” for each molded product corresponding to the mold identifier L12 are read, and the common operation control condition “U1” is set to the common operation condition. The storage unit 42a stores the molding product specific operation control condition “L03” in the first molding product operation condition setting storage unit 42b, and the molding product specific operation control condition “L12” corresponds to the second molding product. Stored in the operation condition setting storage unit 42c. As a result, the control conditions for the continuous automatic molding operation are set and stored in the operation condition setting storage unit 42.

  In the operation control condition selection / setting image, if the combination of the two lower molds selected by the operator does not correspond to a common upper mold, the overall control unit 41 recognizes this. Controlling the display control unit 45, an alarm indicating that, for example, “The combination of the two lower molds is inappropriate. Please make the combination of the upper molds common” in the operation control condition selection / setting image. The message is displayed in a window.

  As described above, in the present embodiment, the common operation control condition corresponding to a certain upper mold, and the unique operation control condition for each molded product corresponding to each of the plurality of lower molds usable for this certain upper mold, Can be created and stored in advance, so that the operation of creating operation control conditions can be reduced as compared with the prior art, and the memory means for storing operation control conditions can also be used efficiently. . Furthermore, in the operation control condition selection / setting image, a plurality of lower mold die identifiers that can be used for the upper die in association with the upper die die identifier are displayed. Therefore, using the mold identifier of the upper mold as a guideline, you can quickly find the desired two lower molds, select and determine the combination of the two lower molds, and change the mold frequently. It is easy to use at the production site.

It is explanatory drawing seen from the right side surface which shows the outline | summary of the mechanism of the injection molding machine which concerns on one Embodiment of this invention. It is the simplified explanatory view which looked at the injection molding machine concerning one embodiment of the present invention from the upper part. It is a block diagram which simplifies and shows the structure of the control system in the injection molding machine which concerns on one Embodiment of this invention. It is explanatory drawing which shows the outline | summary of the example of data memorize | stored in USB memory in the injection molding machine which concerns on one Embodiment of this invention. In an injection molding machine concerning one embodiment of the present invention, it is an explanatory view showing an example of a picture for operation control condition selection and setting displayed on a display.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 1a Upper structure part of a frame 2 Rotary table 4 Table rotation motor (electric servomotor for table rotation)
5 Rotation transmission mechanism 6 Lower mold S1 Mold opening / closing / injection stage S2 Eject stage 7 Upper mold 8 Tailstock 9 Movable die plate 10 Tie bar 11 Injection unit 12 Mold opening / closing motor (electric servo motor for mold opening / closing)
13 Ball screw mechanism 14 Toggle link mechanism 14a Cross head 15 Ejecting motor (electric servo motor for ejecting)
16 Ball screw mechanism 17 Eject plate 18 Guide pin 19 First eject pin 31 System controller 32 Input device 33 Display device 34 Sensor group 35 Driver group 36 USB memory mounting unit 37 USB memory 41 General control unit 42 Operating condition setting storage unit 42a Common operation Condition setting storage unit 42b First molding product operation condition setting storage unit 42c Second molding product operation condition setting storage unit 43 Measurement value storage unit 44 Operation process control unit 45 Display control unit 46 USB memory read / write control unit (USB memory R / W controller)
51 Number display field for selecting a lower mold (lower mold) 52 Display field for mold identifier of lower mold (lower mold) 53 Display field of mold identifier for upper mold (upper mold) 54 Date of display Display field 55 Display field for comments regarding molded products 56 Input field for mold identifier of lower mold on one side (A side) 57 Input field for mold identifier of lower mold on other side (B side) 58 Mold on upper mold Type identifier display field 59 “OK” key icon

Claims (2)

Two first molds mounted on the rotary table at intervals of 180 °, and one of the two first molds disposed at positions facing each other by intermittent rotation of the rotary table every 180 °. Two second molds and one injection unit arranged corresponding to the second mold, and a pair of the first mold and the second mold facing each other is clamped In an injection molding machine that performs injection by the injection unit,
When the two first molds correspond to two molded products of different product types, respectively, the operation control conditions unique to the molded product of one product type corresponding to one of the first molds, and the other A controller capable of displaying, on a display device, an operation control condition selection / setting image capable of selecting a combination with an operation control condition unique to a molded product of the other product type corresponding to the first mold. With
The operation control condition selection / setting image includes information indicating the second mold and information indicating a plurality of the first molds that can be used in combination with the second mold. The controller displays a list, and the controller selects the combination of the two first molds so that the operation control condition specific to the molded product of one selected product type and the other selected product are displayed. An injection molding machine characterized in that an operation control condition unique to a type of molded product and an operation control condition common to two selected product types are set as control conditions for continuous automatic molding operation. The injection molding machine according to claim 1,
Information indicating the second mold and information indicating the plurality of first molds that can be used in combination with the second mold are displayed in a list over a plurality of sets. Injection molding machine.

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