Molding determination device, injection molding machine and molding determination method

Abstract

A molding determination device according to the present disclosure is equipped with a molding determination unit for determining whether or not it is possible for an injection molding machine to mold a target molded article, on the basis of specification information, which is information about the specifications of the injection molding machine, and the molding results of the target molded article from a die to be used in the molding of the target molded article, while taking an error in the molding results into consideration.

Description

Molding judgment device, injection molding machine, and molding judgment method

[0001] The present disclosure relates to a molding determination device, an injection molding machine, and a molding determination method.

[0002] Japanese Patent Laid-Open Publication No. 10-278086 discloses a diagnostic device that determines whether an injection molding machine can mold a molded product based on a resin flow analysis.

[0003] There is a demand for a better molding judgment device, injection molding machine, and molding judgment method.

[0004] A first aspect of the present disclosure is a molding judgment device that judges whether molding is possible using an injection molding machine, and the molding judgment device includes: a specification information acquisition unit that acquires specification information, which is information related to the specifications of the injection molding machine; a mold information acquisition unit that acquires mold information, which is at least one of the molding conditions set for the mold used to mold the target molded product and the molding result of the target molded product using the mold; and a molding judgment unit that judges whether the injection molding machine can mold the target molded product based on the specification information and the mold information, taking into account errors in the mold information.

[0005] A second aspect of the present disclosure is an injection molding machine, the injection molding machine having the molding determination device of the first aspect.

[0006] A third aspect of the present disclosure is a molding judgment method for judging whether or not molding is possible for an injection molding machine using a molding judgment device, the molding judgment method comprising: a specification information acquisition step for acquiring specification information, which is information relating to the specifications of the injection molding machine; a mold information acquisition step for acquiring mold information, which is at least one of the molding conditions set for the mold used to mold the target molded product and the molding result of the target molded product using the mold; and a molding judgment step for judging whether or not the injection molding machine is able to mold the target molded product based on the specification information and the mold information, taking into account errors in the mold information.

[0007] FIG. 1 is a block diagram showing the configuration of a molding judgment device. FIG. 2 is a block diagram showing the configuration of a resin flow analysis device. FIG. 3 is a block diagram showing the configuration of an injection molding machine. FIG. 4 is a diagram showing an input screen displayed on a display unit. FIG. 5 is a diagram explaining a method for calculating corrected mold information related to injection pressure. FIG. 6 is a flowchart showing molding judgment processing performed in the molding judgment device. FIG. 7 is a diagram explaining a method for calculating corrected specification information related to injection pressure. FIG. 8 is a diagram showing an input screen displayed on a display unit. FIG. 9 is a diagram showing an input screen displayed on a display unit. FIG. 10 is a diagram showing an input screen displayed on a display unit.

[0008] The resin flow analysis device can perform a simulation of the molding of a target molded product and obtain molding results from the simulation, such as changes in injection pressure over time.

[0009] The molding judgment device judges whether the injection molding machine can mold the target molded product based on the molding results obtained by the resin flow analysis device and the specification information of the injection molding machine. If the specifications of the injection molding machine can accommodate the molding results, the molding judgment device judges that the injection molding machine can mold the target molded product. On the other hand, if the specifications of the injection molding machine cannot accommodate the molding results, the molding judgment device judges that the injection molding machine cannot mold the target molded product.

[0010] The molding results obtained by the resin flow analysis device are simulation results. Therefore, there is a possibility of an error between the molding results obtained by the resin flow analysis device and the molding results obtained during actual molding using an injection molding machine. This error may cause the molding judgment device to erroneously determine that the injection molding machine can mold the target molded product, even though in reality it cannot.

[0011] If a production plan for a target molded product is made based on an incorrect judgment, the target molded product cannot actually be molded by the injection molding machine, and the worker must revise the production plan.

[0012] An object of the present disclosure is to provide a molding judgment device, an injection molding machine, and a molding judgment method that can improve the accuracy of judging whether an injection molding machine can mold a target molded product.

[0013] 1 is a block diagram showing the configuration of a molding determination device 90. The molding determination device 90 is connected to a resin flow analysis device 14 and an injection molding machine 16. The molding determination device 90 may be provided in the injection molding machine 16.

[0014] The resin flow analysis device 14 acquires molding conditions corresponding to each mold based on the analysis of the resin flow in each mold. Since a mold is formed for each molded product, it can be said that molding conditions are acquired corresponding to each molded product.

[0015] The resin flow analysis device 14 obtains molding results corresponding to each mold based on the analysis of the resin flow in each mold. The molding results obtained by the resin flow analysis device 14 are molding results obtained by performing a simulation. Since a mold is formed for each molded product, it can be said that molding results are obtained corresponding to each molded product.

[0016] The molding judgment device 90 compares the molding results corresponding to the mold used to mold the target molded product with the specifications of the injection molding machine 16, and determines whether the injection molding machine 16 can mold the target molded product using that mold.

[0017] The molding judgment device 90 judges that the injection molding machine 16 is capable of molding the target molded product if the specifications of the injection molding machine 16 can achieve the molding results obtained by the resin flow analysis device 14. On the other hand, if the specifications of the injection molding machine 16 cannot achieve the molding results obtained by the resin flow analysis device 14, the molding judgment device 90 judges that the injection molding machine 16 is unable to mold the target molded product.

[0018] Before describing the detailed configuration of the molding determination device 90, the detailed configurations of the resin flow analysis device 14, the injection molding machine 16, and the molding determination device 90 will be described below in order.

[0019] [Configuration of Resin Flow Analysis Device] FIG. 2 is a block diagram showing the configuration of the resin flow analysis device 14. As shown in FIG.

[0020] The resin flow analysis device 14 has a calculation unit 20 and a storage unit 22. The calculation unit 20 is a processor such as a central processing unit (CPU) or a graphics processing unit (GPU). The calculation unit 20 has an analysis unit 24, a molding condition calculation unit 26, and a molding result calculation unit 28. The analysis unit 24, the molding condition calculation unit 26, and the molding result calculation unit 28 are realized by executing a program stored in the storage unit 22 in the calculation unit 20. At least a portion of the analysis unit 24, the molding condition calculation unit 26, and the molding result calculation unit 28 may be realized by an integrated circuit such as an application specific integrated circuit (ASIC) or a field-programmable gate array (FPGA). At least a portion of the analysis unit 24, the molding condition calculation unit 26, and the molding result calculation unit 28 may be realized by an electronic circuit including discrete devices.

[0021] The memory unit 22 is composed of a volatile memory (not shown) and a non-volatile memory (not shown), which are computer-readable storage media. The volatile memory is, for example, a random access memory (RAM). The non-volatile memory is, for example, a read-only memory (ROM), a flash memory, etc. Data, etc., are stored in the volatile memory. Programs, tables, maps, etc., are stored in the non-volatile memory. At least a portion of the memory unit 22 may be provided in the above-mentioned processor, integrated circuit, etc. At least a portion of the memory unit 22 may be mounted on a device connected to the resin flow analysis device 14 via a network.

[0022] The analysis unit 24 simulates the flow of resin in the flow channel on a model created for each mold. The analysis unit 24 obtains analysis results such as the position of the leading edge of the resin (melt front) in the flow channel when the resin is filled, the pressure distribution of the resin in the flow channel, and the temperature distribution of the resin in the flow channel.

[0023] The molding condition calculation unit 26 calculates molding conditions corresponding to each mold based on the analysis results. Hereinafter, the molding conditions calculated by the molding condition calculation unit 26 may be referred to as analytical molding conditions. The analytical molding conditions correspond to mold information in the present invention. Examples of analytical molding conditions include a set injection rate, a set injection speed, and a set resin temperature.

[0024] The molding result calculation unit 28 calculates molding results corresponding to each mold based on the analysis results. Hereinafter, the molding results calculated by the molding result calculation unit 28 may be referred to as analytical molding results.

[0025] The analytical molding results correspond to the mold information of the present invention, and include, for example, the change in injection pressure over time (injection pressure waveform), peak injection pressure, the change in injection rate over time (injection rate waveform), the change in injection speed over time (injection speed waveform), the change in injection volume over time (injection volume waveform), the volume of the molded product, the injection stroke, and the change in clamping force over time (clamping force waveform).

[0026] The analytical molding conditions and analytical molding results are saved as analytical data in an analytical file 30 created in association with each mold. Each analytical file 30 is stored in the storage unit 22.

[0027] [Configuration of Injection Molding Machine] FIG. 3 is a block diagram showing the configuration of the injection molding machine 16.

[0028] The injection molding machine 16 has a calculation unit 32 and a memory unit 34. The calculation unit 32 is a processor such as a CPU or GPU. The calculation unit 32 has a molding condition setting unit 36 ​​and a molding result generation unit 38. The molding condition setting unit 36 ​​and the molding result generation unit 38 are realized by the calculation unit 32 executing a program stored in the memory unit 34. At least a portion of the molding condition setting unit 36 ​​and the molding result generation unit 38 may be realized by an integrated circuit such as an ASIC or FPGA. At least a portion of the molding condition setting unit 36 ​​and the molding result generation unit 38 may be realized by an electronic circuit including discrete devices.

[0029] The memory unit 34 is composed of a volatile memory (not shown) and a non-volatile memory (not shown), which are computer-readable storage media. The volatile memory is, for example, a RAM. The non-volatile memory is, for example, a ROM, a flash memory, etc. Data, etc., are stored in the volatile memory. Programs, tables, maps, etc., are stored in the non-volatile memory, for example. At least a portion of the memory unit 34 may be provided in the above-mentioned processor, integrated circuit, etc. At least a portion of the memory unit 34 may be installed in a device connected to the injection molding machine 16 via a network.

[0030] The molding condition setting unit 36 ​​sets, in the injection molding machine 16, molding conditions corresponding to the mold attached to the injection molding machine 16 during actual molding. The molding conditions set here do not have to be the analytical molding conditions acquired by the resin flow analysis device 14. For example, molding conditions input by an operator may be set. Hereinafter, the molding conditions set in the injection molding machine 16 by the molding condition setting unit 36 ​​may be referred to as actual molding conditions. The actual molding conditions correspond to the mold information of the present invention. The actual molding conditions are, for example, the set injection speed, the set mold clamping force, etc.

[0031] During actual molding, the molding result generation unit 38 acquires detection values ​​from various sensors attached to the injection molding machine 16 and the molds, and generates molding results based on the detection values. The molding results are generated in association with each mold attached to the injection molding machine 16. Hereinafter, the molding results generated by the molding result generation unit 38 may be referred to as actual molding results. The actual molding results correspond to the mold information of the present invention. The actual molding results include, for example, changes in injection pressure over time (injection pressure waveform), changes in injection speed over time (injection speed waveform), injection stroke, etc.

[0032] The actual molding conditions and the actual molding results are stored as molding data in a molding file 42 created in association with each mold. Each molding file 42 is stored in the storage unit 34.

[0033] In addition to the molding file 42 described above, the storage unit 34 also stores a specification information file 44. The specification information file 44 stores information related to the specifications of the injection molding machine 16. Examples of information related to the specifications of the injection molding machine 16 include the maximum injection pressure, maximum injection speed, maximum injection rate, maximum injection volume, maximum mold clamping force, screw diameter, and maximum mold dimensions. Hereinafter, the information stored in the specification information file 44 may be referred to as specification information.

[0034] 1, the molding determination device 90 has a calculation unit 48 and a storage unit 50. The calculation unit 48 is a processor such as a CPU or a GPU. The calculation unit 48 has a mold information acquisition unit 52, a specification information acquisition unit 54, an input value acquisition unit 92, a molding determination unit 58, and a display control unit 60. The mold information acquisition unit 52, the specification information acquisition unit 54, the input value acquisition unit 92, the molding determination unit 58, and the display control unit 60 are realized by the calculation unit 48 executing a program stored in the storage unit 50.

[0035] At least a part of the mold information acquisition unit 52, the specification information acquisition unit 54, the input value acquisition unit 92, the molding determination unit 58, and the display control unit 60 may be realized by an integrated circuit such as an ASIC, an FPGA, etc. At least a part of the mold information acquisition unit 52, the specification information acquisition unit 54, the input value acquisition unit 92, the molding determination unit 58, and the display control unit 60 may be realized by an electronic circuit including a discrete device.

[0036] The storage unit 50 is composed of a volatile memory (not shown) and a non-volatile memory (not shown), which are computer-readable storage media. The volatile memory is, for example, a RAM. The non-volatile memory is, for example, a ROM, a flash memory. Data, etc., are stored in, for example, the volatile memory. Programs, tables, maps, etc., are stored in, for example, the non-volatile memory. At least a portion of the storage unit 50 may be provided in the above-mentioned processor, integrated circuit, etc. At least a portion of the storage unit 50 may be mounted on a device connected to the forming determination device 90 via a network.

[0037] The mold information acquisition unit 52 acquires analytical molding results corresponding to the mold of the target molded product from the resin flow analysis device 14. The specification information acquisition unit 54 acquires specification information from the injection molding machine 16.

[0038] The input value acquisition unit 92 acquires values ​​input by the worker operating the input unit 66. FIG. 4 is a diagram showing an input screen 94 displayed on the display unit 18. The display control unit 60 causes the display unit 18 to display the input screen 94. A value input unit 96 is displayed on the input screen 94. The worker can input values ​​into the value input unit 96 by operating the input unit 66. The input value acquisition unit 92 acquires the values ​​input into the value input unit 96.

[0039] The molding determination unit 58 determines whether the injection molding machine 16 can mold the target molded product based on the specification information and the analytical molding results, taking into account errors in the analytical molding results. Specifically, the molding determination unit 58 calculates corrected mold information, which is a value obtained by adding errors to the analytical molding results. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information of the injection molding machine 16 to determine whether the injection molding machine 16 can mold the target molded product.

[0040] The post-correction mold information is compared with the specification information for each item, such as injection pressure, injection rate, injection volume, and mold clamping force.

[0041] As an example, a method for calculating corrected mold information for the injection pressure item will be described. FIG. 5 is a diagram illustrating a method for calculating corrected mold information for injection pressure. The molding determination unit 58 determines the maximum value of the injection pressure. The maximum value of the injection pressure is determined from changes in the injection pressure over time. As shown in FIG. 4, when the value input to the value input unit 96 is "10," the molding determination unit 58 sets the value obtained by multiplying the maximum value of the injection pressure by 1.1 as the corrected mold information for the injection pressure. As a result, corrected mold information is obtained as an analytical molding result corrected by taking into account errors corresponding to the values ​​input by the operator.

[0042] If the maximum injection pressure of the injection molding machine 16 is equal to or less than the corrected mold information, the molding determination unit 58 determines that the injection molding machine 16 cannot mold the target molded product. As shown in Figure 5, if the maximum injection pressure of the injection molding machine 16 is greater than the corrected mold information, the molding determination unit 58 compares the corrected mold information obtained from the analytical molding results with the specification information for other items. If the specification information can achieve the corrected mold information for all items, the molding determination unit 58 determines that the injection molding machine 16 can mold the target molded product.

[0043] The corrected mold information for each item is obtained as follows. The molding determination unit 58 obtains the maximum value of the injection rate corrected in accordance with the value input to the value input unit 96 as the corrected mold information for the injection rate. The maximum value of the injection rate is determined from the change in the injection rate over time. The molding determination unit 58 obtains the maximum value of the injection volume corrected in accordance with the value input to the value input unit 96 as the corrected mold information for the injection volume. The maximum value of the injection volume is determined from the change in the injection rate over time. The molding determination unit 58 obtains the maximum value of the clamping force corrected in accordance with the value input to the value input unit 96 as the corrected mold information for the clamping force. The maximum value of the clamping force is determined from the change in the required clamping force over time.

[0044] 6 is a flowchart showing the forming determination process performed in the forming determination device 90. The forming determination process is performed when, for example, an operator issues an instruction via the input unit 66 to execute the forming determination process.

[0045] In step S1, the specification information acquisition unit 54 acquires specification information from the injection molding machine 16. Then, the process proceeds to step S2.

[0046] In step S2, the mold information acquisition unit 52 acquires the analytical molding results from the resin flow analysis device 14. Then, the process proceeds to step S3.

[0047] In step S3, the molding determination unit 58 determines whether or not the injection molding machine 16 can mold the target molded product based on the specification information and the analytical molding results, taking into account errors in the analytical molding results. Thereafter, the molding determination process ends.

[0048] [Effects] In the molding determination device 90 of this embodiment, the molding determination section 58 determines whether or not the injection molding machine 16 can mold the target molded product based on the specification information and the analytical molding results, taking into account errors in the analytical molding results. This allows the molding determination device 90 to improve the accuracy of determining whether or not the injection molding machine 16 can mold the target molded product.

[0049] Furthermore, in the molding determination device 90 of this embodiment, the molding determination unit 58 calculates corrected mold information, which is the analytical molding result corrected by taking into account errors in the analytical molding result. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information to determine whether the injection molding machine 16 can mold the target molded product. This allows the molding determination device 90 to improve the accuracy of determining whether the injection molding machine 16 can mold the target molded product.

[0050] Furthermore, the forming determination device 90 of this embodiment takes into account an error according to the value input by the operator operating the input unit 66. This allows the forming determination device 90 to adjust the determination accuracy according to the value input by the operator.

[0051] Second Embodiment The molding determination device 90 of the first embodiment determines whether or not the injection molding machine 16 can mold a target molded product by comparing corrected mold information obtained from the analytical molding results with specification information of the injection molding machine 16. In contrast, the molding determination device 90 of the present embodiment determines whether or not the injection molding machine 16 can mold a target molded product by comparing corrected specification information obtained from the specification information of the injection molding machine 16 with the analytical molding results. Other configurations of the molding determination device 90 are the same as those of the molding determination device 90 of the first embodiment.

[0052] As an example, a method for calculating corrected specification information regarding injection pressure will be described. FIG. 7 is a diagram illustrating a method for calculating corrected specification information regarding injection pressure. As shown in FIG. 4, when the value input to the value input unit 96 is "10," the molding judgment unit 58 calculates the corrected specification information regarding injection pressure by multiplying the maximum injection pressure, which is the specification information of the injection molding machine 16, by 0.9. In this way, the corrected specification information is obtained as specification information corrected by taking into account an error corresponding to the value input by the operator.

[0053] If the corrected specification information is equal to or less than the maximum injection pressure, the molding determination unit 58 determines that the injection molding machine 16 cannot mold the target molded product. If the corrected specification information is greater than the maximum injection pressure, as shown in Figure 7, the molding determination unit 58 compares the corrected specification information obtained from the specification information with the analytical molding results for other items. If the corrected specification information can achieve the analytical molding results for all items, the molding determination unit 58 determines that the injection molding machine 16 can mold the target molded product.

[0054] [Effects] In the molding determination device 90 of this embodiment, the molding determination unit 58 calculates corrected specification information corresponding to the specification information, taking into account errors in the analytical molding results. Furthermore, the molding determination unit 58 compares the analytical molding results with the corrected specification information to determine whether the injection molding machine 16 can mold the target molded product. This allows the molding determination device 90 to improve the accuracy of determining whether the injection molding machine 16 can mold the target molded product.

[0055] [Third Embodiment] In the forming determination device 90 of the first embodiment, the input value acquisition unit 92 acquires a value input to the value input unit 96 ( FIG. 4 ) by an operator operating the input unit 66. In contrast, in the forming determination device 90 of the present embodiment, the input value acquisition unit 92 acquires a value corresponding to an option 100 selected by an operator operating the input unit 66.

[0056] 8 is a diagram showing an input screen 94 displayed on the display unit 18. The display control unit 60 causes the display unit 18 to display the input screen 94. Options 100A to 100E are displayed on the input screen 94. The worker can select one of the options 100A to 100E by operating the input unit 66.

[0057] A value is associated with each of the options 100A to 100D. For example, the value "30(%)" is associated with option 100A. "20(%)" is associated with option 100B. "10(%)" is associated with option 100C. "15(%)" is associated with option 100D. The input value acquisition unit 92 acquires the value associated with the selected option 100.

[0058] 4 may be displayed on the display unit 18. In this case, the input value acquisition unit 92 acquires the value input to the value input unit 96.

[0059] The molding determination unit 58 calculates corrected mold information according to the value corresponding to the option 100 selected by the worker. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information of the injection molding machine 16 to determine whether the injection molding machine 16 can mold the target molded product.

[0060] [Effects] In the forming determination device 90 of this embodiment, the display control unit 60 displays a plurality of options 100 on the display unit 18. Furthermore, the forming determination unit 58 adds an error depending on the option 100 selected by the worker operating the input unit 66. This allows the determination accuracy of the forming determination device 90 to be adjusted depending on the option 100 selected by the worker.

[0061] [Fourth Embodiment] In the forming determination device 90 of the first embodiment, the input value acquisition unit 92 acquires a value input to the value input unit 96 ( FIG. 4 ) by an operator operating the input unit 66. In contrast, in the forming determination device 90 of the present embodiment, the input value acquisition unit 92 acquires a value corresponding to the position of the slide 104 moved on the slide bar 102 by the operator operating the input unit 66.

[0062] 9 is a diagram showing an input screen 94 displayed on the display unit 18. The display control unit 60 causes the display unit 18 to display the input screen 94. A slide bar 102 and a slide 104 are displayed on the input screen 94. The worker can move the slide 104 along the slide bar 102 by operating the input unit 66. A value corresponding to the position of the slide 104 on the slide bar 102 is associated with the slide 104.

[0063] The molding determination unit 58 calculates corrected mold information in accordance with the value corresponding to the position of the slide 104. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information of the injection molding machine 16 to determine whether the injection molding machine 16 can mold the target molded product.

[0064] [Effects] In the forming determination device 90 of this embodiment, the display control unit 60 displays the slide bar 102 and the slide 104 on the display unit 18. Furthermore, the forming determination unit 58 adds an error depending on the position of the slide 104 moved by the worker operating the input unit 66. This allows the determination accuracy of the forming determination device 90 to be adjusted depending on the position of the slide 104 moved by the worker.

[0065] Fifth Embodiment In a molding determination device 90 of this embodiment, the molding determination unit 58 compares the corrected mold information with the specification information of the injection molding machine 16 for each item selected by the operator.

[0066] 10 is a diagram showing an input screen 94 displayed on the display unit 18. The display control unit 60 causes the display unit 18 to display the input screen 94. The input screen 94 displays an item selection button 106, a slide bar 102, and a slide 104.

[0067] The item selection buttons 106A to 106D are provided corresponding to the respective items of injection pressure, injection rate, injection volume, and mold clamping force. The operator can switch the display of each item selection button 106 between "ON" and "OFF" by operating each item selection button 106 using the input unit 66. For an item that is displayed as "ON," a slide bar 102 and a slide 104 may be displayed on the display unit 18, as shown in FIG. 10 .

[0068] The molding judgment unit 58 calculates corrected mold information for each item for which the item selection button 106 is displayed as "ON." The molding judgment unit 58 compares the corrected mold information with the specification information for each item for which the item selection button 106 is displayed as "ON." If the specification information can realize the corrected mold information for all items, the molding judgment unit 58 judges that the injection molding machine 16 can mold the target molded product.

[0069] [Operation and Effect] In the molding judgment device 90 of this embodiment, the display control unit 60 causes the display unit 18 to display item selection buttons 106 for selecting each item used for judgment. Furthermore, for the item selected by the operator operating the input unit 66, the molding judgment unit 58 compares the corrected mold information with the specification information of the injection molding machine 16 and judges whether or not the injection molding machine 16 can mold the target molded product. In this way, it is possible to judge whether or not the injection molding machine 16 can mold the target molded product based on the item selected by the operator.

[0070] Sixth Embodiment The molding determination device 90 of the first embodiment sets corrected mold information for each item based on the analytical molding results acquired by the resin flow analysis device 14 corresponding to the mold of the target molded product. In contrast to this, the molding determination device 90 may set corrected mold information for each item based on analytical molding conditions acquired by the resin flow analysis device 14 corresponding to the mold of the target molded product.

[0071] In this case, the mold information acquisition unit 52 acquires analytical molding conditions corresponding to the mold of the target molded product from the resin flow analysis device 14. The other configurations of the molding judgment device 90 are the same as those in the first embodiment.

[0072] The molding determination unit 58 obtains corrected mold information for each item from the analytical molding conditions. For example, the molding determination unit 58 obtains the set injection rate corrected according to the value input to the value input unit 96 (FIG. 4) as corrected mold information for the injection rate. The set injection rate is an analytical molding condition.

[0073] The corrected mold information for each item may include a mixture of corrected mold information obtained from analytical molding results and corrected mold information obtained from analytical molding conditions.

[0074] The molding determination unit 58 determines whether the specification information of the injection molding machine 16 satisfies the corrected mold information for each item of the injection molding machine 16. If the specification information of the injection molding machine 16 satisfies the corrected mold information for all items, the molding determination unit 58 determines that the injection molding machine 16 can mold the target molded product. On the other hand, if the specification information of the injection molding machine 16 does not satisfy one or more of the corrected mold information for each item, the molding determination unit 58 determines that the injection molding machine 16 cannot mold the target molded product.

[0075] [Effects] In the molding determination device 90 of this embodiment, the molding determination unit 58 calculates corrected mold information, which is analytical molding conditions corrected by taking into account errors in the analytical molding results. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information to determine whether the injection molding machine 16 can mold the target molded product. This allows the molding determination device 90 to improve the accuracy of determining whether the injection molding machine 16 can mold the target molded product.

[0076] Seventh Embodiment The molding judgment device 90 of the first embodiment sets corrected mold information for each item based on the analytical molding results acquired by the resin flow analysis device 14 corresponding to the mold of the target molded product. In contrast to this, the molding judgment device 90 may set corrected mold information for each item based on the actual molding results acquired by the injection molding machine 16 corresponding to the mold of the target molded product.

[0077] In this case, the mold information acquisition unit 52 acquires the actual molding results corresponding to the mold of the target molded product from the injection molding machine 16. The other configurations of the molding judgment device 90 are the same as those in the first embodiment.

[0078] The corrected mold information for each item is obtained as follows. The molding judgment unit 58 obtains the maximum value of the injection pressure corrected according to the value input unit 96 (FIG. 4) as the corrected mold information for the injection pressure. The maximum value of the injection pressure is determined from the change over time in the injection pressure of the actual molding results. The molding judgment unit 58 obtains the maximum value of the injection rate corrected according to the value input unit 96 as the corrected mold information for the injection rate. The maximum value of the injection rate is obtained from the change over time in the injection speed of the actual molding results and the screw diameter of the injection molding machine 16. The molding judgment unit 58 obtains the maximum value of the injection volume corrected according to the value input unit 96 as the corrected mold information for the injection volume. The maximum value of the injection volume is obtained from the injection stroke of the actual molding results and the screw diameter of the injection molding machine 16.

[0079] In addition, the corrected mold information for each item may be a mixture of corrected mold information obtained from analytical molding results, corrected mold information obtained from analytical molding conditions, and corrected mold information obtained from actual molding results.

[0080] [Effects] Even when molding the same molded product, there are cases where different actual molding results are obtained by different injection molding machines 16. Furthermore, even when the same molded product is molded by the same injection molding machine 16, there are cases where the actual molding results are obtained differently depending on the environment, such as temperature and humidity.

[0081] In the molding determination device 90 of this embodiment, the molding determination unit 58 calculates corrected mold information, which is the actual molding result corrected by taking into account errors in the actual molding result. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information to determine whether the injection molding machine 16 can mold the target molded product. This allows the molding determination device 90 to improve the accuracy of determining whether the injection molding machine 16 can mold the target molded product.

[0082] Eighth Embodiment The molding judgment device 90 of the first embodiment sets corrected mold information for each item based on the analytical molding results acquired by the resin flow analysis device 14 corresponding to the mold of the target molded product. In contrast to this, the molding judgment device 90 may set corrected mold information for each item based on actual molding conditions acquired by the injection molding machine 16 corresponding to the mold of the target molded product.

[0083] In this case, the mold information acquisition unit 52 acquires the actual molding conditions corresponding to the mold of the target molded product from the injection molding machine 16. The other configurations of the molding judgment device 90 are the same as those in the first embodiment.

[0084] The corrected mold information for each item is obtained as follows. The molding judgment unit 58 obtains the maximum value of the injection rate corrected in accordance with the value input in the value input unit 96 (FIG. 4) as the corrected mold information for the injection rate. The maximum value of the injection rate is obtained from the set injection speed of the actual molding conditions and the screw diameter of the injection molding machine 16. The molding judgment unit 58 obtains the maximum value of the mold clamping force corrected in accordance with the value input in the value input unit 96 as the corrected mold information for the mold clamping force. The maximum value of the mold clamping force is obtained from the set mold clamping force of the actual molding conditions.

[0085] In addition, the corrected mold information for each item may be a mixture of corrected mold information obtained from analytical molding results, corrected mold information obtained from analytical molding conditions, corrected mold information obtained from actual molding results, and corrected mold information obtained from actual molding conditions.

[0086] [Effects] In the molding determination device 90 of this embodiment, the molding determination unit 58 calculates corrected mold information, which is the actual molding conditions corrected by taking into account errors in the actual molding results. Furthermore, the molding determination unit 58 compares the corrected mold information with the specification information to determine whether the injection molding machine 16 can mold the target molded product. This allows the molding determination device 90 to improve the accuracy of determining whether the injection molding machine 16 can mold the target molded product.

[0087] The following additional notes are further disclosed regarding the above embodiment.

[0088] (Supplementary Note 1) A molding determination device (90) that determines whether molding is possible using an injection molding machine (16), the molding determination device comprising: a specification information acquisition unit (54) that acquires specification information, which is information relating to the specifications of the injection molding machine; a mold information acquisition unit (52) that acquires mold information, which is at least one of molding conditions set for a mold used to mold a target molded product and the molding result of the target molded product using the mold; and a molding determination unit (58) that determines whether the injection molding machine can mold the target molded product based on the specification information and the mold information, taking into account errors in the mold information.

[0089] (Supplementary Note 2) In the molding determination device described in Supplementary Note 1 above, the molding determination unit may determine whether the injection molding machine can mold the target molded product by comparing corrected mold information, which is the mold information corrected by taking the error into account, with the specification information.

[0090] (Supplementary Note 3) In the molding determination device described in Supplementary Note 1, the molding determination unit may determine whether the injection molding machine can mold the target molded product by comparing corrected specification information, which is the specification information corrected by taking the error into account, with the mold information.

[0091] (Supplementary Note 4) In the forming determination device described in any one of Supplementary Notes 1 to 3 above, the forming determination unit may take into account the error according to a value input by an operator operating the input unit (66).

[0092] (Supplementary Note 5) The molding determination device described in any one of Supplementary Notes 1 to 3 above may include a display control unit (60) that displays a plurality of options (100) on a display unit (18), and the molding determination unit may take into account the error depending on the option selected by an operator operating an input unit.

[0093] (Supplementary Note 6) The molding determination device described in any one of Supplementary Notes 1 to 3 above may include a display control unit that displays a slide bar (102) and a slide (104) that can be moved along the slide bar on a display unit, and the molding determination unit may take into account the error depending on the position of the slide moved by an operator operating an input unit.

[0094] (Supplementary Note 7) The molding judgment device described in any one of Supplementary Notes 1 to 3 above may include a display control unit that displays selection buttons (106) on a display unit to select each item used for judgment by the molding judgment unit, and the molding judgment unit may judge whether or not the injection molding machine can mold the target molded product based on the specification information and mold information of the item selected by an operator operating an input unit.

[0095] (Supplementary Note 8) In the molding determination device described in any one of Supplementary Notes 1 to 7 above, the specification information may be at least one of a maximum injection pressure, a maximum injection speed, a maximum injection rate, a maximum injection volume, and a maximum mold clamping force, and the mold information may be at least one of an injection pressure waveform, a peak injection pressure, a set injection rate, a set injection speed, an injection rate waveform, an injection speed waveform, an injection volume waveform, a molded product volume, an injection stroke, a mold clamping force waveform, and a set mold clamping force.

[0096] (Supplementary Note 9) In the molding judgment device described in any one of Supplementary Notes 1 to 8, the molding conditions may be acquired by the injection molding machine or a resin flow analysis device (14) that analyzes the flow of resin inside the mold, and the molding results may be acquired by the injection molding machine or the resin flow analysis device.

[0097] (Supplementary Note 10) In the molding determination device described in any one of Supplementary Notes 1 to 9, the molding determination unit may determine whether or not the injection molding machine can mold the target molded product based on the maximum injection pressure, which is the specification information, and the injection pressure waveform, which is the mold information.

[0098] (Supplementary Note 11) In the molding determination device described in any one of Supplementary Notes 1 to 10 above, the molding determination unit may determine whether or not the injection molding machine is capable of molding the target molded product based on a maximum injection rate, which is the specification information, and a set injection rate, which is the mold information.

[0099] (Supplementary Note 12) In the molding determination device described in any one of Supplementary Notes 1 to 11 above, the molding determination unit may determine whether or not the injection molding machine can mold the target molded product based on the maximum injection volume, which is the specification information, and the molded product volume, which is the mold information.

[0100] (Supplementary Note 13) In the molding determination device described in any one of Supplementary Notes 1 to 12 above, the molding determination unit may determine whether or not the injection molding machine can mold the target molded product based on the maximum mold clamping force, which is the specification information, and the mold clamping force waveform, which is the mold information.

[0101] (Supplementary Note 14) An injection molding machine includes the molding judgment device according to any one of Supplementary Notes 1 to 13 above.

[0102] (Supplementary Note 15) A molding judgment method for judging whether or not molding is possible for an injection molding machine using a molding judgment device, comprising: a specification information acquisition step for acquiring specification information, which is information relating to the specifications of the injection molding machine; a mold information acquisition step for acquiring mold information, which is at least one of molding conditions set for a mold used to mold a target molded product and the molding result of the target molded product using the mold; and a molding judgment step for judging whether or not the injection molding machine is able to mold the target molded product based on the specification information and the mold information, taking into account errors in the mold information.

[0103] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values ​​or mathematical expressions are used in the description of the above-described embodiments.

[0104] 16: Injection molding machine 18: Display unit 52: Mold information acquisition unit 54: Specification information acquisition unit 58: Molding judgment unit 60: Display control unit 66: Input unit 90: Molding judgment device 100: Options 102: Slide bar 104: Slide 106: Item selection button (selection button)

Claims

1. A molding judgment device that judges whether molding by an injection molding machine is possible, a specification information acquisition unit that acquires specification information that is information regarding the specifications of the injection molding machine; a mold information acquisition unit that acquires mold information, which is at least one of molding conditions set for a mold used to mold a target molded product and molding results of the target molded product using the mold; a molding determination unit that determines whether the injection molding machine can mold the target molded product based on the specification information and the mold information, taking into account errors in the mold information; A forming determination device comprising:

2. The forming determination device according to claim 1, The molding judgment unit is a molding judgment device that judges whether the injection molding machine can mold the target molded product by comparing corrected mold information, which is the mold information corrected by taking the error into account, with the specification information.

3. The forming determination device according to claim 1, The molding determination unit determines whether the injection molding machine can mold the target molded product by comparing corrected specification information, which is the specification information corrected by taking the error into account, with the mold information.

4. The forming determination device according to claim 1, The forming determination unit is a forming determination device that takes into account the error according to a value input by an operator operating an input unit.

5. The forming determination device according to claim 1, a display control unit that displays a plurality of options on a display unit; The forming determination unit is a forming determination device that takes into account the error depending on the option selected by an operator operating an input unit.

6. The forming determination device according to claim 1, a display control unit that displays a slide bar and a slide that can be moved along the slide bar on a display unit; The forming determination unit is a forming determination device that takes into account the error depending on the position of the slide moved by an operator operating an input unit.

7. The forming determination device according to claim 1, a display control unit that displays, on a display unit, selection buttons for selecting each item used in the judgment by the molding judgment unit; The molding determination unit determines whether the injection molding machine can mold the target molded product based on the specification information and mold information of the item selected by an operator operating an input unit.

8. The forming determination device according to claim 1, the specification information is at least one of a maximum injection pressure, a maximum injection speed, a maximum injection rate, a maximum injection volume, and a maximum mold clamping force; The molding determination device, wherein the mold information is at least one of an injection pressure waveform, a peak injection pressure, a set injection rate, a set injection speed, an injection rate waveform, an injection speed waveform, an injection volume waveform, a molded product volume, an injection stroke, a mold clamping force waveform, and a set mold clamping force.

9. The forming determination device according to claim 1, the molding conditions are acquired by the injection molding machine or a resin flow analysis device that analyzes the flow of resin inside the mold, The molding result is acquired by the injection molding machine or the resin flow analysis device.

10. The forming determination device according to claim 1, The molding determination unit is a molding determination device that determines whether or not the injection molding machine can mold the target molded product based on the maximum injection pressure, which is the specification information, and the injection pressure waveform, which is the mold information.

11. The forming determination device according to claim 1, The molding determination unit determines whether the injection molding machine is capable of molding the target molded product based on the maximum injection rate, which is the specification information, and the set injection rate, which is the mold information.

12. The forming determination device according to claim 1, The molding determination unit determines whether the injection molding machine can mold the target molded product based on the maximum injection volume, which is the specification information, and the molded product volume, which is the mold information.

13. The forming determination device according to claim 1, The molding determination unit is a molding determination device that determines whether or not the injection molding machine can mold the target molded product based on the maximum mold clamping force, which is the specification information, and the mold clamping force waveform, which is the mold information.

14. An injection molding machine having the molding judgment device according to any one of claims 1 to 13.

15. A molding judgment method for judging whether molding is possible or not for an injection molding machine by a molding judgment device, a specification information acquisition step of acquiring specification information that is information regarding the specifications of the injection molding machine; a mold information acquisition step of acquiring mold information, which is at least one of molding conditions set for a mold used to mold a target molded product and molding results of the target molded product using the mold; a molding determination step of determining whether or not the injection molding machine can mold the target molded product based on the specification information and the mold information, taking into account errors in the mold information; A molding determination method comprising: