Injection molding machine, control device for injection molding machine, and control method for injection molding machine

Abstract

To shorten the replacing time of a mold in an injection molding machine.SOLUTION: The injection molding machine 100 includes a mold clamping unit 110 to which a replaceable mold is attached, a storage device 170, and a control device 140 that controls the mold clamping unit 110. The storage device 170 stores data relating to a mold to be used. The control device 140 (a) acquires data relating to a mold scheduled to be used next time from the storage device 170 when the mold is replaced, and (b) sets a parameter for performing mold thickness adjustment for setting the mold clamping device 110 at a position suitable for the mold scheduled to be used based on the acquired data.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an injection molding machine, a control device for an injection molding machine, and a control method for an injection molding machine, and more particularly to a technique for shortening the time required to change a mold in an injection molding machine. [Background technology]

[0002] Japanese Patent Publication No. 2022-21498 (Patent Document 1) discloses a configuration in an injection molding machine system equipped with a device for transporting or removing a mold to a clamping device, in which a mold can be replaced while a molded product is being molded in another mold. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-21498 Summary of the Invention [Problem to be solved by the invention]

[0004] In injection molding machines, molds are generally changed depending on the type of molded product. Therefore, in the case of high-mix, low-volume production where a relatively large number of molded products are molded in relatively small quantities, the frequency of mold changes increases, which causes a decrease in operating rate. Therefore, it is desirable to shorten the mold replacement time in order to improve operating rate.

[0005] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to shorten the time required to change molds in an injection molding machine. [Means for solving the problem]

[0006] An injection molding machine according to one aspect of the present disclosure includes a mold clamping unit to which an exchangeable mold is attached, a storage device, and a control device that controls the mold clamping unit. The storage device stores data related to the mold to be used. The control device (a) acquires data related to the mold to be used next from the storage device when exchanging the mold, and (b) sets parameters for adjusting the mold thickness to set the mold clamping unit to a position suitable for the mold to be used based on the acquired data.

[0007] A control device according to another aspect of the present disclosure relates to a control device for an injection molding machine with interchangeable molds. The injection molding machine includes a mold clamping device to which a mold is attached and a storage device. The storage device stores data related to the mold to be used. The control device (a) acquires data related to the mold to be used next from the storage device when exchanging the mold, and (b) sets parameters for adjusting the mold thickness to set the mold clamping device to a position suitable for the mold to be used based on the acquired data.

[0008] A control method according to yet another aspect of the present disclosure relates to a control method for an injection molding machine. The injection molding machine includes a mold clamping device to which an exchangeable mold is attached and a storage device. The storage device stores data related to the mold to be used. The control method includes the steps of (a) acquiring data related to the mold to be used next from the storage device when exchanging the mold, and (b) setting parameters for adjusting the mold thickness to set the mold clamping device to a position suitable for the mold to be used based on the acquired data. [Effects of the Invention]

[0009] The injection molding machine of the present disclosure can automatically acquire data on the next mold to be used, set parameters for mold thickness adjustment, and start mold thickness adjustment. This eliminates the need for the user to manually select data on the next mold to be used, set parameters for mold thickness adjustment using that data, and start mold thickness adjustment. This reduces the time required to change molds. [Brief explanation of the drawings]

[0010] [Figure 1] 1A and 1B are diagrams illustrating a configuration of an injection molding machine 100 according to an embodiment. [Figure 2] 2 is a diagram illustrating an example of a hardware configuration of a control device 140 of the injection molding machine 100. FIG. [Figure 3] 2 is a functional block diagram of a control device 140 in the injection molding machine 100. FIG. [Figure 4] FIG. 10 is a diagram showing an example of a screen on which a list of mold data is displayed. [Figure 5] FIG. 10 is a diagram showing the layout of buttons for changing to the next type in a window. [Figure 6] 10 is a flowchart showing a processing procedure when replacing a mold. [Figure 7] 3 is a flowchart showing a processing procedure of the injection molding machine 100 according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals, and description thereof will not be repeated.

[0012] [Configuration of injection molding machine] FIG. 1 is a diagram illustrating the configuration of an injection molding machine 100 according to an embodiment. For ease of explanation, the floor surface on which injection molding machine 100 is placed is defined as an XY plane, and the direction perpendicular to the floor surface is defined as a Z-axis direction. The positive direction of the Z-axis may be referred to as the upper side or upward, and the negative direction as the lower side or downward. Although injection molding machine 100 in the embodiment is shown as a horizontal injection molding machine, it is not limited to a horizontal type and may be a vertical injection molding machine.

[0013] 1, injection molding machine 100 includes a mold clamping unit 110 for clamping a mold, an injection unit 120 for melting and injecting an injection material, an operation panel 130, a control unit 140, a storage device 170, and a servo amplifier 160. In Fig. 1, mold clamping unit 110 is disposed on the negative side of the X-axis relative to injection unit 120.

[0014] The mold clamping device 110 includes a bed 111, a fixed platen 112, a mold clamping housing 113, a movable platen 114, tie bars 115, a mold clamping mechanism 116, and a ball screw 119. The bed 111 is placed on the floor surface, and devices such as the fixed platen 112, the mold clamping housing 113, and the movable platen 114 are mounted on the upper surface of the bed 111.

[0015] The fixed platen 112 is fixed to the end of the bed 111 that is closer to the injection unit 120 (i.e., in the positive direction of the X-axis). The mold clamping housing 113 is disposed at the end of the bed 111 that is in the negative direction of the X-axis. The fixed platen 112 and the mold clamping housing 113 are connected by tie bars 115 that include a plurality of bars. The mold clamping housing 113 is movable on the bed 111 in the X-axis direction.

[0016] The movable platen 114 is disposed on the bed 111 between the fixed platen 112 and the mold clamping housing 113. The movable platen 114 is configured to be movable in the X-axis direction. The mold clamping housing 113 and the movable platen 114 are connected by a mold clamping mechanism 116. The mold clamping mechanism 116 has a toggle mechanism. A ball screw 119 is connected to the toggle mechanism, and by driving a servo motor 151 disposed in the mold clamping housing 113 to rotate the ball screw 119, the movable platen 114 can be moved in the X-axis direction relative to the mold clamping housing 113. Note that a direct acting cylinder driven by hydraulic pressure may be used as the mold clamping mechanism 116.

[0017] Molds 117 and 118 are arranged on the movable platen 114 and the fixed platen 112, respectively. Mold 117 and mold 118 are arranged facing each other between the movable platen 114 and the fixed platen 112. A thickness D1 of mold 117, a thickness D2 of mold 118, and a distance L1 between the movable platen 114 and the fixed platen 112 vary depending on the product to be molded. In the following explanation, the process of adjusting the distance L1 between the movable platen 114 and the fixed platen 112 to match the thickness D1 of mold 117 and the thickness D2 of mold 118 will be referred to as "mold thickness adjustment."

[0018] By moving the mold 117 in the X-axis direction using the mold clamping mechanism 116, the mold 117 and the mold 118 can be brought into close contact with each other or moved away from each other. In the following explanation, the process of transitioning the molds 117 and 118 from a spaced-apart state to a close contact state is referred to as "mold closing." The process of clamping the molds from the closed state with a large force so that they do not open due to the pressure at the time of injection is referred to as "mold clamping." Furthermore, the process of transitioning the molds 117 and 118 from a close contact state to a spaced-apart state is referred to as "mold opening."

[0019] With the mold 117 and mold 118 clamped together in the mold clamping process, a molten molding material (resin) is filled into the mold and cooled to solidify, thereby molding a product of a desired shape. After the product has been molded, with the mold 117 separated from the mold 118 in the mold opening process, the molded product can be removed from the mold 117 by operating an ejector mechanism (not shown) arranged on the movable platen 114. The ejector mechanism is driven by a servo motor 152 arranged on the movable platen 114. The process of removing the product using the ejector mechanism is referred to as the "ejection" process.

[0020] The injection device 120 includes a base 121, a heating cylinder 122, a drive device 124, a hopper 125, and an injection moving device 127. The base 121 is placed on the floor surface on the positive side of the X-axis of the bed 111, and the drive device 124 is mounted on the upper surface thereof. Servo motors 153 and 154 are arranged in the drive device 124.

[0021] A heating cylinder 122 extending in the X-axis direction is disposed in the driving device 124. The heating cylinder 122 is provided with a heater (not shown) for heating the interior, a screw 123, and an injection nozzle 126. The screw 123 is driven by a servo motor 153 in the driving device 124 and is configured to be rotatable around the X-axis direction as its rotation axis. The screw 123 is also configured to be movable in the X-axis direction by the servo motor 154. The injection nozzle 126 is disposed at the end of the heating cylinder 122 on the mold clamping device 110 side (i.e., the end in the negative direction of the X-axis). The heating cylinder 122 heats and melts beads of resin material fed from a hopper 125, and kneads the material using the screw 123 to produce a molten molding material. This process of melting the resin material is referred to as a "plasticization" process.

[0022] The injection moving device 127 is configured, for example, by a mechanism using a hydraulic cylinder or a mechanism using a ball screw, and connects the drive device 124 to the fixed platen 112 of the mold clamping device 110. When the injection moving device 127 is configured by a mechanism using a ball screw, the injection moving device 127 is driven by the drive device 124 to move the drive device 124 and the heating cylinder 122 in the X-axis direction. The injection moving device 127 brings the injection nozzle 126 into contact with the sprue bushing of the mold 118 in the mold clamping device 110, and injects the molten molding material from the injection nozzle 126, thereby filling the cavities of the molds 117, 118 with the molten molding material. The servo motor 154 applies pressure to the molten molding material by moving the screw 123 in the heating cylinder 122 in the negative direction of the X-axis, thereby injecting the molten molding material into the molds 117, 118 and maintaining a constant pressure of the molten molding material after injection.

[0023] The configuration of the injection movement mechanism is not limited to the above-described configuration in which the entire injection device is moved by a ball screw disposed between the fixed platen 112 and the drive device 124, but may be other configurations. For example, a configuration in which a ball screw is used to connect the device frame to a fixed member at the rear of the heating cylinder, and the heating cylinder itself is moved toward the mold, may be used. Alternatively, a configuration in which a ball screw is used to connect a slide base on which the injection device is mounted to the device frame, and the injection device is moved together with the slide base to bring the injection nozzle into contact with the mold may be used.

[0024] The process of injecting the molten molding material into the molds 117, 118 is called the "injection" process. After the injection process, the process of maintaining the molten molding material filled in the molds 117, 118 at a constant pressure and adjusting the amount of shrinkage is called the "holding" process. After the holding process is completed, a cooling process, in which the molten molding material is left to solidify in the mold, and a plasticization process, in which the material for the next injection is melted, kneaded, and measured, are carried out in parallel.

[0025] Once the cooling and plasticizing steps are complete, the mold opening and ejection steps are carried out to remove the molded product.

[0026] The injection molding machine 100 can continuously mold products by cyclically repeating a mold closing process, a mold clamping process, an injection process, a pressure holding process, a cooling and plasticizing process, a mold opening process, and an ejection process.

[0027] The control panel provided on the base 121 houses a control device 140, a storage device 170, and a servo amplifier 160 for driving the servo motors 151 to 154. The control device 140 acquires detection values ​​from various sensors arranged in the injection molding machine 100 and controls the injection molding machine 100 overall.

[0028] The storage device 170 stores various parameter settings during operation, sensor measurements, and mold data. The mold data includes data related to mold thickness adjustment, mold opening / closing that adjusts the mold opening amount and mold opening / closing speed after mold installation, ejector, cylinder temperature related to starting molding, injection, and plasticization. The storage device 170 may also store various programs and data for automatic operation.

[0029] The storage device 170 includes a large-capacity storage device such as an HDD (Hard Disc Drive) and an SSD (Solid State Drive). Although not shown in the figure, the servo amplifier 160 includes a plurality of servo amplifiers provided corresponding to the servo motors 151 to 154, respectively.

[0030] The operation panel 130 is a device used by an operator to operate the injection molding machine 100, and includes a display device 135 such as a liquid crystal display, and an input device 136 such as a keyboard or operation switches. The operation panel 130 is connected to the control device 140, and can acquire and display the status of the injection molding machine 100, and output user operation signals from the input device 136 to the control device 140. The operation panel 130 may be a touch panel in which the display device 135 and the input device 136 are integrated. The operation panel 130 may be attached to the bed 111 or base 121 of the injection molding machine 100, or may be located in a position independent of the injection molding machine 100.

[0031] Fig. 2 is a diagram showing an example of the hardware configuration of the control device 140 of the injection molding machine 100. As shown in Fig. 2, the control device 140 includes a memory 142, a processor 144, and an input / output interface 146, which are connected to each other via a communication bus.

[0032] The input / output interface 146 receives various parameter settings, sensor measurement values, and mold data. The input / output interface 146 also transmits drive control signals to the servo motors 151 to 154. The input / output interface 146 is connected to a storage device 170.

[0033] The memory 142 stores various programs and data for automatic operation. The memory 142 may also store various parameter settings during operation, sensor measurement values, and mold data. The memory 142 includes memories such as ROM (Read Only Memory) and RAM (Random Access Memory).

[0034] The processor 144 controls each device of the injection molding machine 100 based on various data stored in the memory 142 and the storage device 170 and various data acquired from the input / output interface 146. The processor 144 is, for example, an arithmetic processing device such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). [Mold change procedure] As described above, after products have been continuously molded using one mold, when a different product is to be molded, the molds 117, 118 arranged in the mold clamping device 110 must be replaced. However, in the case of high-mix, low-volume production in which a relatively large variety of products are molded in relatively small quantities, the frequency of mold changes increases, which causes a decrease in the operating rate. Therefore, it is desirable to shorten the mold replacement time in order to improve the operating rate.

[0035] Therefore, in the mold change sequence, we will focus on the process of acquiring data on the mold to be used next, setting parameters for mold thickness adjustment, and starting the mold thickness adjustment. In this process, a typical injection molding machine executes the following steps. First, a screen listing mold data is output by user operation. Next, the user selects the data on the mold to be used next from the list of mold data. Next, the user opens a window listing the data on the selected mold to be used next, and acquires the data on the mold to be used next.

[0036] Finally, the user references the acquired data on the mold to be used next, sets the parameters required for mold thickness adjustment, and presses the execute button to start the mold thickness adjustment.As all of these steps were performed manually by the user, the data acquisition process took a relatively long time.

[0037] Therefore, in the injection molding machine 100 of this embodiment, when a mold is replaced, data on the mold to be used next is acquired, parameters for mold thickness adjustment are set, and mold thickness adjustment is started automatically. This eliminates the need for the user to manually acquire data on the mold to be used next, set parameters for mold thickness adjustment using that data, and start mold thickness adjustment. This reduces the time required to replace the mold.

[0038] [Controller function] 3 is a functional block diagram of the control device 140 in the injection molding machine 100. As shown in FIG. 3, the control device 140 includes an input unit 141, a data acquisition unit 143, and a parameter setting unit 145.

[0039] First, we will explain how to automatically obtain the data of the next mold to be used when changing the mold. The user must register the order in which the molds will be used in advance by adding it to the mold data.

[0040] The user inputs the order in which the dies are to be used into the input unit 141 via the operation panel 130. The input unit 141 transmits the order in which the dies are to be used input by the user to the storage device 170. The storage device 170 stores the order in which the dies are to be used in association with pre-stored die data.

[0041] Here, the screen of the operation panel 130 when the user performs an operation input will be described in detail. Specifically, the operation input by the user is performed on a screen on which a list of mold data is displayed. Figure 4 is a diagram showing an example of the screen on which the list of mold data is displayed. The screen includes fixed portions A1 and A3 and a transition portion A2.

[0042] The transition section A2 includes a data update date and time B1 and a list of mold data B2. The data update date and time B1 is, for example, the date and time when the mold data was most recently updated. The list of mold data B2 displays the file name for each product, the order in which the molds are used, and the date and time when the mold data was updated.

[0043] Each file stores various data for each mold. The mold data must be entered before the mold order is entered. Alternatively, the user can enter the mold order when entering the mold data.

[0044] The user registers in advance the order in which each mold will be used in the mold use order column 210 in the mold data list B2. In Figure 4, it can be seen that the molds are scheduled to be used in the following order: product 4, product 8, product 2, product 5, and product 3.

[0045] The registration or change of the mold use order is performed, for example, at the start of work each day, before the injection molding machine 100 starts operating, in accordance with the production schedule for that day. The registration or change of the mold use order may also be performed, for example, for molds to be used the following day or later. Furthermore, the registration or change of the mold use order may also be performed while the injection molding machine 100 is operating.

[0046] Next, a method for automatically setting parameters for adjusting the mold thickness when replacing a mold will be described with reference to Fig. 3 again. First, the user inputs an instruction to change the mold currently in use to the mold scheduled for next use into the input unit 141 via the operation panel 130. The input unit 141 transmits the instruction to change the mold currently in use to the mold scheduled for next use to the data acquisition unit 143.

[0047] The data acquisition unit 143 identifies the mold to be used next based on the instruction and the order of the molds currently being used. The data acquisition unit 143 sends a signal to the storage device 170 to transmit data on the identified mold. In response to the signal, the storage device 170 selects data on the mold to be used next and transmits it to the data acquisition unit 143. The data acquisition unit 143 transmits the acquired data on the mold to be used next to the parameter setting unit 145.

[0048] The parameter setting unit 145 extracts, for example, data on the thickness D1 of the mold 117 and the thickness D2 of the mold 118 included in the data on the mold thickness adjustment from the data on the mold to be used next. Based on the thickness D1 of the mold 117 and the thickness D2 of the mold 118, the parameter setting unit 145 calculates the distance L1 between the movable platen 114 and the fixed platen 112, which is a parameter required for mold thickness adjustment.

[0049] When the used molds 117, 118 have been removed from the movable platen 114 and the fixed platen 112, the parameter setting unit 145 sends a control signal to the mold clamping unit 110 so that the distance between the movable platen 114 and the fixed platen 112, which is the opening degree of the mold clamping unit 110, becomes distance L1, and moves the mold clamping housing 113 to the target position.

[0050] Here, the screen of the operation panel 130 when the user performs an operation input will be described in detail. Referring again to Fig. 4, buttons 220 and 230 exist in the fixed portion of the screen of the display device 135 of the operation panel 130. The same display continues in the fixed portion even when another screen is opened. In the fixed portions, fixed portion A1 is the header and fixed portion A3 is the footer.

[0051] The fixed portion A1 includes a button 220 and the current date and time. This allows the user to immediately input a command to change the mold currently in use to the mold scheduled to be used next into the input unit 141 of the control device 140, regardless of which window is open. Also, the current date and time can be seen regardless of which window is open.

[0052] The fixed portion A3 includes a button 230, a button to return to the display of the previously opened window, a button to return to the home screen, and a button to open a new window. This allows the user to immediately input, into the input unit 141 of the control device 140, an instruction to change the mold currently in use to the mold to be used next, regardless of which window is open. Also, regardless of which window is open, the display screen can be changed immediately. The fixed portion A3 may also display the current time.

[0053] The user presses buttons 220, 230 on the screen of the operation panel 130 and inputs an instruction to change the mold currently in use to the mold scheduled for next use into the input unit 141. In Fig. 4, button 220 is arranged on fixed part A1, and button 230 is arranged on fixed part A3. By pressing either button, the user can input an instruction to change the mold currently in use to the mold scheduled for next use into the input unit 141.

[0054] Figure 5 shows the layout of buttons for changing to the next mold in a window. The window in Figure 5 is different from the window in Figure 4, but like the window in Figure 4, it includes fixed portions A1 and A3 and a transition portion A2. The fixed portions continue to display the same information even when other windows are opened, so buttons 220 and 230 are present not only in the window in Figure 4 that displays a list of mold data, but also in the window in Figure 5. In this way, regardless of which window the user has open, the user can immediately input to the control device 140 an instruction to change the mold currently in use to the mold to be used next.

[0055] In this way, the injection molding machine 100 of this embodiment can automatically acquire data on the mold to be used next, set parameters for mold thickness adjustment, and start mold thickness adjustment. This eliminates the need for the user to manually acquire data on the mold to be used next, set parameters for mold thickness adjustment using that data, and start mold thickness adjustment. This reduces the time required to change molds.

[0056] Here, the overall processing procedure for replacing a mold will be explained. Figure 6 is a flowchart showing the processing procedure for replacing a mold. First, when all injection molding using the mold currently in use is completed (step S1), the process moves to the mold replacement work in preparation for molding the next product. Next, the user suspends the mold using a crane and wire, loosens the mounting bolts, and removes the mold from the movable platen and moving platen (step S2), and then hoists the mold using the crane (step S3). Next, the control device 140 performs data acquisition processing for the mold to be used next in accordance with the button operation by the user (step S4), and subsequently adjusts the mold thickness of the mold (step S5).

[0057] Here, step S4 will be described in detail with reference to Fig. 7. In the injection molding machine 100 of the embodiment, the data acquisition process of step S4 is changed from manual to automatic, thereby shortening the time required for mold replacement. Fig. 7 is a flowchart showing the processing procedure of the injection molding machine 100 of the embodiment.

[0058] First, the user presses a button provided on the operation panel 130 (step S21). Then, the control device 140 identifies the next mold to be used based on an instruction to change the mold currently in use to the next mold to be used and the order of the molds currently in use. Then, the control device 140 acquires data of the identified next mold to be used from the storage device 170 (step S22).

[0059] Then, the control device 140 extracts data on the thickness D1 of the mold 117 and the thickness D2 of the mold 118, which are included in the data related to mold thickness adjustment, from the data on the mold to be used next. Then, the control device 140 calculates the distance L1 between the movable platen 114 and the fixed platen 112, which is a parameter required for mold thickness adjustment, based on the thickness D1 of the mold 117 and the thickness D2 of the mold 118. Finally, the control device 140 sets parameters for mold thickness adjustment, such as the distance L1 between the movable platen 114 and the fixed platen 112, and starts the mold thickness adjustment (step S23).

[0060] 6, in response to the start command in step S23, actual mold thickness adjustment is performed in step S5. Once this is completed, the user then replaces the ejector mechanism (step S6). After that, the user uses a crane to suspend the mold to be used next (step S7) and attaches it to the movable platen and the movable platen (step S8). Once the attachment of the mold is complete, the control device 140 starts the next injection molding in accordance with the user's operation (step S9).

[0061] In this way, the injection molding machine 100 of this embodiment can automatically perform a series of processes, from acquiring data on the mold to be used next, setting parameters for mold thickness adjustment, starting mold thickness adjustment, and adjusting the mold thickness in step S5, which are executed in the data acquisition process of step S4. This minimizes the amount of manual operation by the user in the series of processes from acquiring data on the mold to be used next to adjusting the mold thickness. Therefore, the time required for changing molds can be shortened.

[0062] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the description of the above embodiments, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0063] 100 injection molding machine, 110 mold clamping device, 111 bed, 112 fixed platen, 113 mold clamping housing, 114 movable platen, 115 tie bar, 116 mold clamping mechanism, 117, 118 mold, 120 injection unit, 121 base, 122 heating cylinder, 123 screw, 124 drive unit, 125 hopper, 126 injection nozzle, 127 injection moving unit, 130 operation panel, 135 display device, 136 input device, 140 control device, 141 input unit, 142 memory, 143 data acquisition unit, 144 processor, 145 parameter setting unit, 146 input / output interface, 151 to 154 servo motor, 160 servo amplifier, 170 storage device.

Claims

1. An injection molding machine with an exchangeable mold, a mold clamping device to which a mold is attached; a storage device storing data relating to the mold to be used; a control device for controlling the mold clamping device, The control device When replacing the mold, data on the mold to be used next is obtained from the storage device; An injection molding machine that sets parameters for adjusting the mold thickness to set the mold clamping device at a position suitable for the mold to be used based on the acquired data.

2. 2. The injection molding machine according to claim 1, wherein the data is stored in the storage device together with the order in which the molds are to be used.

3. 3. The injection molding machine of claim 2, wherein the data includes information regarding the thickness of the mold.

4. The injection molding machine of claim 3 , wherein the parameters include a position of the mold clamping device.

5. 5. The injection molding machine according to claim 4, wherein the control device determines whether or not to replace the mold based on a predetermined operation input from a user.

6. 6. The injection molding machine according to claim 5, further comprising an operation button for a user to input the predetermined operation.

7. The injection molding machine according to claim 6, further comprising an operation panel on which the operation buttons are arranged.

8. further comprising a display device configured to display the data; 7. The injection molding machine according to claim 6, wherein the operation button is a software switch displayed on a display screen of the display device.

9. The injection molding machine according to claim 8 , wherein the operation buttons are arranged in an area on the display device that remains unchanged even when the screen changes.

10. The injection molding machine according to claim 9, wherein the control device displays the set parameters on the display device.

11. 9. The injection molding machine according to claim 8, wherein the control device accepts input of the data from a user via the display device, and stores the input data in the storage device.

12. 12. The injection molding machine according to claim 1, wherein the control device adjusts the mold thickness after setting the parameters.

13. A control device for an injection molding machine with an exchangeable mold, The injection molding machine a mold clamping device to which a mold is attached; a storage device in which data relating to the mold to be used is stored; The control device When replacing the mold, data on the mold to be used next is obtained from the storage device; A control device for an injection molding machine that sets parameters for adjusting the mold thickness to set the mold clamping device at a position suitable for the mold to be used based on the acquired data.

14. A control method for an injection molding machine with exchangeable molds, comprising: The injection molding machine a mold clamping device to which a mold is attached; a storage device in which data relating to the mold to be used is stored; The control method includes: When replacing the mold, acquiring data on the mold to be used next from the storage device; and setting parameters for adjusting the mold thickness to set the mold clamping device at a position suitable for the mold to be used based on the acquired data.

Images