Resin flow analysis result display system and resin flow analysis result display control method

Abstract

This resin flow analysis result display system (10), which has a display unit (16) for displaying an analysis result (22) of a resin flow analysis, acquires analysis results (22) associated with respective screw positions in the resin flow analysis, selects a molding condition of at least a single lot from among a plurality of molding conditions set on an injection molding machine, selects an analysis result (22) according to the molding condition of the selected lot, and causes the selected analysis result (22) to be displayed on the display unit (16).

Description

Technical FieldThe present invention relates to a resin flow analysis result display system and a control method for the resin flow analysis result display.Related ArtJP 2002-361702 A discloses a personal computer which displays the progress of the melt front as a result of the resin flow analysis on a display.Summary of the InventionThere is a need for a better resin flow analysis result display system and a better resin flow analysis result display control method for displaying a resin flow analysis result obtained in the resin flow analysis on a display unit.A first aspect of the present disclosure is characterized by a resin flow analysis result display system provided with a display unit configured to display an analysis result obtained in the resin flow analysis, the resin flow analysis result display system including: an analysis result obtaining unit configured to obtain analysis results respectively associated with each time or each screw position in the resin flow analysis; a molding condition selecting unit configured to select a molding condition of at least one item from among molding conditions of a plurality of items set for an injection molding machine; an analysis result selecting unit configured to select the analysis result according to the selected molding condition of the item; and a display control unit configured to cause the display unit to display the selected analysis result.A second aspect of the present disclosure is characterized by a resin flow analysis result display control method for causing a display unit to display an analysis result obtained in the resin flow analysis, the method comprising: obtaining analysis results respectively associated with each time or each screw position in the resin flow analysis; selecting a molding condition of at least one item from among molding conditions of a plurality of items set for an injection molding machine; selecting the analysis result according to the selected molding condition of the item; and causing the display unit to display the selected analysis result.Brief Description of the DrawingsThe following are shown:[FIG. 1 ] FIG. 1 is a block diagram of a resin flow analysis result display system;[FIG. 2 ] FIG. 2 is a table showing an example of / time, scroll position, injection speed, pressure, and three-dimensional analysis data managed by a resin flow analysis device;[FIG. 3] FIG. 3 is a diagram showing an example of three-dimensional display of an analysis result;[FIG. 4] FIG. 4 is a diagram showing a display example of a display unit;[FIG. 5 ] FIG. 5 is a diagram showing a display example of the display unit;[FIG. 6 ] FIG. 6 is a graph showing the changes in the casting conditions and the changes in the actual casting results with respect to the actual screw position;[FIG. 7 ] FIG. 7 is a graph showing the changes in the casting conditions and the changes in the actual casting results with respect to the actual screw position;[FIG. 8 ] FIG. 8 is an image diagram showing a state in which the stroke length of a screw in the actual casting and the stroke length of the screw in the analysis are deviated from each other;[FIG. 9 ] FIG. 9 is an image diagram showing a state in which the start position for injection in actual casting and the start position for injection in analysis are deviated from each other;[FIG. 10 ] FIG. 10 is a view showing a display example of a graphical representation at a certain point in time in a virtual casting time; and[FIG. 11 ] FIG. 11 is a view showing a display example of a table at a certain time in a virtual casting time.DETAILED DESCRIPTION OF THE INVENTIONA resin flow analysis device analyzes the flow state of the resin in an injection molding machine and calculates the molding conditions to be set in the injection molding machine. However, the resin flow analysis device cannot always fully reproduce the state of the resin flow in actual casting through the analysis. Therefore, even when the molding conditions calculated by the resin flow analysis device are set in the injection molding machine, a good molded article cannot be obtained basically in actual molding. Therefore, the user needs to adjust the molding conditions calculated by the resin flow analysis device. The molding conditions are adjusted based on the molded article obtained in actual molding, the actual molding result, and the like, and based on the analysis result obtained with the resin flow analysis device.The analysis result obtained by the resin flow analysis device is displayed on a display unit. The analysis result is associated with each time or each screw position in the analysis. A user may cause the display unit to display an analysis result corresponding to a desired timing or a desired scroll position by operating a slide controller or the like to indicate a timing or a scroll position in the analysis.When the user sets the molding conditions, the user needs to select an analysis result corresponding to the molding conditions of a lot to be set, and cause the display unit to display the selected analysis result. However, it is cumbersome for the user to select, from a large number of analysis results, the one corresponding to the molding condition of the item to be set.An object of the present disclosure is therefore to allow the user to easily operate to cause the display unit to display an analysis result corresponding to the molding condition of each item.[First Embodiment][Overview of Resin Flow Analysis Results Display System]FIG. 1 is a block diagram of a resin flow analysis result display system 10. the resin flow analysis result display system 10 includes an input unit 12, a display control unit 14, and a display unit 16. the resin flow analysis result display system 10 is connected to a resin flow analysis device 18 and an injection molding machine 20 via a network.In the resin flow analysis device 18, the following information is managed in time series as an analysis result. The information includes time, screw position, injection speed, pressure, and three-dimensional analysis data. FIG. 2 is a table showing an example of the time, the screw position, the injection speed, the pressure, and the three-dimensional analysis data managed by the resin flow analyzer 18.The resin flow analysis device 18 sets a plurality of points in a virtual three-dimensional space. Each point has three-dimensional coordinate values. The resin flow analyzer 18 calculates the state of the resin at each point at predetermined regular time intervals in the molding time in the analysis. The state of the resin includes the pressure, velocity, temperature and density of the resin. The state of the resin at each point is managed as three-dimensional analysis data shown in FIG. 2 together with the three-dimensional coordinate values of each point.The above-described molding time is the elapsed time from the time when a screw is started in an injection operation after completion of a metering operation. The above-described molding time in the analysis is the molding time calculated by the resin flow analyzer 18. Hereinafter, the molding time in the analysis is referred to as a virtual molding time. The virtual molding time corresponds to the time shown in FIG. 2.The display control unit 14 of the resin flow analysis result display system 10 acquires the analysis result from the resin flow analysis device 18. the display control unit 14 causes the display unit 16 to display a three-dimensional display 22 of the analysis result based on the three-dimensional analysis data at each time of the virtual casting time. FIG. 3 is a diagram showing a display example of the three-dimensional display 22 at a certain time in the virtual casting time.The display control unit 14 generates the three-dimensional display 22 by displaying each point existing at the boundary between the resin and a substance other than the resin by using polygons at each time of the virtual molding time. The substance other than the resin refers to a mold, air and the like. In the display example of the three-dimensional display 22 shown in FIG. 3, the flow path in the mold is represented by a wire mesh. The inflow area of the resin is represented by the use of polygons in the flow path. The temperature distribution of the resin is indicated by the shading of a color on the polygons indicating the inflow area of the resin. Instead of shading the colour, the temperature distribution of the resin can also be indicated by a colour arrangement. In addition, instead of the temperature distribution, a pressure distribution, a density distribution, or the like may be displayed.As shown in FIG. 2, the screw position varies with the time of the virtual casting time. In other words, the three-dimensional analysis data is associated with the screw position. The screw position shown in FIG. 2 is a screw position in analysis. The screw position in the analysis is a screw position obtained as an analysis result in the resin flow analysis device 18. Hereinafter, the screw position in the analysis may be referred to as a virtual screw position.The resin flow analysis device 18 calculates the molding conditions to be set in the injection molding machine 20. The injection molding machine 20 performs the actual molding based on the molding conditions calculated by the resin flow analysis device 18. By this actual casting, a molded article and an actual casting result are obtained. The actual molding result is a detection value detected during actual molding by various sensors provided in the injection molding machine 20. As the actual casting result, the screw position, the injection pressure, the injection speed, and the like at each time of the casting time in the actual casting are obtained. The casting time in the actual casting is the actual elapsed time from the time when the screw starts moving in the injection step of the actual casting. Hereinafter, the casting time in actual casting is referred to as actual casting time. The screw position obtained as a result of the actual casting may be referred to as an actual screw position.The display control unit 14 controls the display unit 16 to display the molding conditions set in the injection molding machine 20 and the three-dimensional display 22 of the analysis result on the display unit 16. FIGS. 4 and 5 are diagrams showing display examples of the display unit 16. the display unit 16 includes a first display area 24 and a second display area 26. The three-dimensional display 22 is displayed in the second display area 26.The molding conditions of a plurality of items are displayed in the first display area 24. The user can select a molding condition of a lot by operating the input unit 12. The three-dimensional display 22 of the analysis result corresponding to the selected molding condition of the item is displayed in the second display area 26.The item indicated by "A" in FIG. 4 indicates an injection switching position which is a scroll position at which the injection speed is switched between the second-stage speed and the third-stage injection speed. For example, when the user selects the molding condition of the item indicated by "A" in FIG. 4, the three-dimensional display 22 corresponding to the molding condition "10.00 mm" of the injection switching position is displayed in the second display area 26.The item indicated by "E" in FIG. 5 indicates an injection / hold switching pressure, i.e., an injection pressure at which the injection operation is switched to the hold operation. For example, when the user selects the molding condition indicated by "E" in FIG. 5, the three-dimensional display 22 corresponding to the molding condition "1.2 MPa" of the injection / after-pressing switching pressure is displayed in the second display area 26.The user may also select, via the input unit 12, an item such as an injection / hold switching position, a maximum injection time, a hold pressure, a hold time, a maximum injection pressure, and an injection speed, in addition to the injection switching position and the injection / hold switching pressure.The injection / pushing-down switching position is a scroll position at which the injection operation is switched to the pushing-down operation. The maximum injection time is the maximum injection time. When the elapsed time from the start of the injection reaches the maximum injection time, the operation shifts to the repressing operation. The re-pressing pressure is an injection pressure held during the re-pressing operation. The re-pressing time is the time during which the re-pressing pressure is held in the re-pressing operation. The maximum injection pressure is the maximum value of the injection pressure in the injection operation. The screw is moved such that the injection pressure does not exceed the maximum injection pressure. The injection speed is a moving speed of the screw in the injection operation.[Configuration of Display Control Unit]As illustrated in FIG. 1, the display control unit 14 includes a calculation unit 28 and a storage unit 30.The calculation unit 28 includes, for example, a processor such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or the like. The calculation unit 28 includes a casting condition acquisition unit 32, a casting condition display control unit 34, a casting condition selection unit 36, an analysis result acquisition unit 38, an actual casting result acquisition unit 40, an analysis result selection unit 42, and an analysis result display control unit 44. the casting condition acquisition unit 32, the casting condition display control unit 34, the casting condition selection unit 36, the analysis result acquisition unit 38, the actual casting result acquisition unit 40, the analysis result selection unit 42, and the analysis result display control unit 44 are realized by the calculation unit 28 executing a program stored in the storage unit 30. At least a part of the casting condition acquisition unit 32, the casting condition display control unit 34, the casting condition selection unit 36, the casting condition acquisition unit 38, the actual casting results acquisition unit 40, the analysis result selection unit 42, and the analysis result display control unit 44 may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array). At least a part of the casting condition acquisition unit 32, the casting condition display control unit 34, the casting condition selection unit 36, the analysis result acquisition unit 38, the actual casting result acquisition unit 40, the analysis result selection unit 42, and the analysis result display control unit 44 may be realized by an electronic circuit including a discrete device.The storage unit 30 is formed of a non-illustrated volatile memory and a non-illustrated non-volatile memory. The volatile and non-volatile memories are computer readable storage media. The volatile memory is, for example, a RAM (Random Access Memory) or the like. The nonvolatile memory is, for example, a ROM (Read Only Memory), a flash memory, or the like. In the volatile memory, for example, data or the like is stored. In the nonvolatile memory, for example, programs, tables, maps, or the like are stored. At least a portion of the storage unit 30 may be provided in the above-described processor, the integrated circuit, or the like.The molding condition acquisition unit 32 acquires the molding conditions of the respective items set in the injection molding machine 20 from the injection molding machine 20.The molding condition display control unit 34 controls the display unit 16 to display the acquired molding conditions of the respective items in the first display area 24, as illustrated in FIG. 4 or 5.The molding condition selection unit 36 selects a molding condition for a single lot from among the molding conditions of the plurality of lots set in the injection molding machine 20 based on the operation of the input unit 12 by the user. The input unit 12 is, for example, a touch panel provided on the screen of the display unit 16. In this case, the molding condition selection unit 36 selects the molding condition of the item displayed at a double-tap position by the user on the screen of the display unit 16.The analysis result acquisition unit 38 acquires the analysis results shown in FIG. 2 from the resin flow analysis device 18.The actual molding result acquisition unit 40 acquires the actual molding result from the injection molding machine 20.The analysis result selection unit 42 selects a single analysis result based on the molding condition of the item selected by the user. Selection of the analysis result made by the analysis result selection unit 42 will be described in detail below.The analysis result display control unit 44 controls the display unit 16 to display the three-dimensional display 22 of the selected analysis result in the second display region 26, as illustrated in FIG. 4 or 5. The analysis result display control unit 44 corresponds to a display control unit in the sense of the present invention.All the constituent elements of the resin flow analysis result display system 10 may be mounted on the injection molding machine 20.The resin flow analysis result display system 10 may be configured by a plurality of devices connected to each other via a network. The input unit 12, the display control unit 14, and the display unit 16 may be accommodated in various devices, for example.At least a portion of the storage unit 30 of the display control unit 14 may be installed in a device connected to the display control unit 14 via a network.Moreover, the casting condition acquisition unit 32, the casting condition display control unit 34, the casting condition selection unit 36, the analysis result acquisition unit 38, the actual casting result acquisition unit 40, and the analysis result selection unit 42 may be realized by calculation units in various apparatuses.[Selection Processing of Analysis Result]Next, the selection processing of the analysis result performed by the analysis result selection unit 42 will be described. The selection processing of the analysis result is roughly divided into two processes.In the first process, the analysis result selection unit 42 determines a screw position (actual screw position) in the actual casting from the casting condition of the item selected by the user. In the subsequent second process, the analysis result selection unit 42 determines a screw position in the analysis (virtual screw position) corresponding to the actual screw position. After completion of the first and second processes, the analysis result selection unit 42 selects an analysis result corresponding to the determined virtual scroll position based on the table illustrated in FIG. 2.(First Operation)FIG. 6 is a graph showing the changes in the casting conditions and the changes in the actual casting results with respect to the actual screw position. The molding conditions shown in FIG. 6 indicate the molding conditions of the respective items displayed in the first display area 24 of FIG. 4.Under the molding conditions shown in FIG. 4, the injection speed in the injection operation is set in three stages. In the re-pressing operation, the re-pressing pressure is adjusted in two stages. The switching from the injection process to the pushing-on process is defined by the screw position.The item indicated by "A" in FIG. 4 indicates an injection switching position which is a scroll position at which the injection speed is switched between a second-stage injection speed and a third-stage injection speed. When the casting condition is selected for this item, the actual screw position (10 mm) indicated by "A" in FIG. 6 is determined in the analysis result selection unit 42.The item indicated by "B" in FIG. 4 indicates a re-pressing time, i.e., a time in which the re-pressing pressure of the second stage is held. When the molding condition of this batch is selected, the analysis result selection unit 42 determines the actual screw position indicated by "B" in FIG. 6. This actual screw position is a position 0.2 second (i.e., the pushing-down time) after the actual screw position reaches 5 mm.The item indicated by "C" in FIG. 4 indicates the maximum injection pressure when the screw is advanced at the third-stage injection speed. When the molding condition of this batch is selected, the analysis result selection unit 42 determines the actual screw position (10 mm) indicated by "C" in FIG. 6.The item indicated by "D" in FIG. 4 indicates the third-stage injection speed. When the molding condition of this batch is selected, the analysis result selection unit 42 determines the actual screw position (10 mm) indicated by "D" in FIG. 6.FIG. 7 is a graph showing the changes in the molding conditions and the changes in the actual molding results with respect to the actual screw position. The molding conditions shown in FIG. 7 indicate the molding conditions of the respective items displayed in the first display area 24 of FIG. 5.Under the molding conditions shown in FIG. 5, the injection speed in the injection operation is set in three stages. In the re-pressing operation, the re-pressing pressure is adjusted in two stages. The switching from the injection process to the repressing process is determined by the injection pressure.The item indicated by "E" in FIG. 5 is an injection / hold switching pressure, i.e., an injection pressure at which the injection operation is switched to the hold operation. When the molding condition of this batch is selected, the analysis result selection unit 42 determines an actual screw position indicated by "E" in FIG. 6. This actual scroll position is a position at the time when the injection pressure reaches the injection / hold-pressure switching pressure 1.2 MPa.In the above description, the operation of the analysis result selection unit 42 for determining the actual screw position from the molding condition of the item selected by the user has been described. Also, the process for determining the actual molding time from the molding condition of the item selected by the user is performed.(Second Process)In the second process, the analysis result selection unit 42 determines a virtual scroll position corresponding to the actual scroll position. As methods for determining the virtual screw position corresponding to the actual screw position, two methods will be described below. The first method is used when the stroke length of the screw in the actual casting and the stroke length of the screw in the analysis are different. The second method is used when the stroke lengths are the same, but the injection start position in the actual casting and the injection start position in the analysis are different. The stroke length indicates a length from the injection initiating scroll position to the minimum buffer.FIG. 8 is an image diagram showing a state in which the stroke length S 1 of the screw in the actual casting and the stroke length T 1 of the screw in the analysis are deviated from each other. In this case, the virtual screw position Q 1 corresponding to the actual screw position P 1 is determined by the following equation.FIG. 9 is a graph showing a state in which the injection start position P 0 in actual casting and the injection start position Q 0 in analysis are deviated from each other although the stroke lengths are the same. In this case, the virtual screw position Q 2 corresponding to the actual screw position P 2 is determined by the following equation.In the above description, the operation of the analysis result selection unit 42 for determining the virtual scroll position from the actual scroll position has been described. Also, the process for determining the virtual casting time from the actual casting time is performed.[Operations and Effects]In the resin flow analysis result display system 10 of the present embodiment, the analysis result acquisition unit 38 acquires the analysis results associated with each of the virtual casting time and the virtual screw position. The molding condition selection unit 36 acquires a molding condition for a lot selected by the user. The analysis result selection unit 42 selects an analysis result based on the selected molding condition of the item. The analysis result display control unit 44 causes the display unit 16 to display the three-dimensional display 22 of the selected analysis result. That is, when the user simply performs only an operation for selecting an item, the three-dimensional display 22 of the analysis result corresponding to the molding condition of the selected item is displayed on the display unit 16. Thereby, the resin flow analysis result display system 10 can reduce the burden on the user in setting the molding conditions.In the resin flow analysis result display system 10 of the present embodiment, the analysis result selection unit 42 determines the actual scroll position according to the selected molding condition of the item. The analysis result selection unit 42 calculates a virtual screw position corresponding to the determined actual screw position. The analysis result selection unit 42 selects an analysis result corresponding to the calculated virtual scroll position. Thus, even if the actual scroll position and the virtual scroll position do not match, the resin flow analysis result display system 10 may cause the display unit 16 to display the three-dimensional display 22 of the analysis result according to the selected molding condition of the item.[Modifications]In the resin flow analysis result display system 10 of the first embodiment, the user selects a molding condition for a single item by operating the input unit 12. In contrast, the user may have the option of selecting the molding conditions of two or more items. In this case, the three-dimensional display 22 of the plurality of analysis results is displayed in the second display region 26 of the display unit 16.In the resin flow analysis result display system 10 of the first embodiment, the display control unit 14 causes the three-dimensional display 22 of the analysis result to be displayed in the second display region 26 of the display unit 16. The display mode of the analysis result displayed in the second display area 26 of the display unit 16 may be another mode.The display control unit 14 may cause the display unit 16 to display a graphic display 50 of the analysis result based on the injection speed, the screw position, and the injection pressure at each time of the virtual molding time illustrated in FIG. 2. FIG. 10 is a diagram showing a display example of the graphic display 50 at a certain time in the virtual molding time. The graphic display 50 shows a change in the injection speed with respect to the scroll position and a change in the injection pressure with respect to the scroll position. In the graphic display 50, a position indicator 52 indicating a screw position corresponding to a specific item in the virtual molding time is displayed.The display control unit 14 may cause the display unit 16 to display a table display 54 of the analysis result based on the injection speed, the screw position, the injection pressure, and the three-dimensional analysis data at each time of the virtual molding time illustrated in FIG. 2. FIG. 11 is a diagram showing a display example of the table display 54 at a certain time in the virtual casting time. The table display 54 displays the injection speed, the screw position, the injection pressure, and the three-dimensional analysis data at each time in a table format. In the table display 54, a frame of a column corresponding to a certain point in the virtual molding time is indicated by a thick line.Moreover, the following supplementary remarks are disclosed with respect to the above-described embodiments.(Supplementary Note 1)The resin flow analysis result display system ( 10) is provided with a display unit ( 16) configured to display the analysis result ( 22, 50, 54) obtained in the resin flow analysis. The resin flow analysis result display system includes: the analysis result acquisition unit (38) configured to acquire the analysis results respectively associated with each time or each of the screw positions in the resin flow analysis; the molding condition selection unit (36) configured to select a molding condition of at least one item, which is set for the injection molding machine, from among the molding conditions of the plurality of items; the analysis result selection unit (42) configured to select the analysis result according to the selected molding condition of the item; and the display control unit (44) configured to cause the display unit to display the selected analysis result.(Supplementary Note 2)In the resin flow analysis result display system according to Supplementary Note 1 described above, the items of the molding conditions may include at least one item of the injection switching position which is a scroll position at which the injection speed is switched in the injection operation, or the injection / hold switching position which is a scroll position at which the injection operation is switched to the hold operation.(Supplementary Note 3)In the resin flow analysis result display system according to Supplementary Note 1 or 2, the items of the molding conditions may include at least one item of the maximum injection time which is the maximum time of the injection operation or the pushing-down time for which the pushing-down pressure is held in the pushing-down operation.(Supplementary Note 4)In the resin flow analysis result display system according to any one of Supplementary Notes 1 to 3, the items of the molding conditions may include at least one item of the maximum injection pressure which is the maximum value of the injection pressure in the injection operation, the hold pressure in the hold operation, or the injection / hold pressure switching pressure which is the injection pressure at which the injection operation is switched to the hold operation.(Supplementary Note 5)In the resin flow analysis result display system according to any one of Supplementary Notes 1 to 4, the items of molding conditions may include at least the injection speed which is the moving speed of the screw in the injection operation.(Supplementary Note 6)In the resin flow analysis result display system according to any one of Supplementary Notes 1 to 5, each of the analysis results may be associated with each of the screw positions in the resin flow analysis, and the analysis result selection unit may be configured to: determine the screw position in the actual casting according to the selected casting condition of the item; calculate the screw position in the resin flow analysis according to the determined screw position in the actual casting; and select the analysis result according to the calculated screw position in the resin flow analysis.(Supplementary Note 7)In the resin flow analysis result display system according to any one of Supplementary Notes 1 to 6, the display unit may display the molding conditions of the respective items, the display unit may include the touch panel, and the molding condition selection unit may select, from the molding conditions of the items, a molding condition of an item displayed at a position touched by the user on the screen of the display unit.(Supplementary Note 8)In the resin flow analysis result display system according to any one of Supplementary Notes 1 to 6, the display unit may display the molding conditions of the respective items, the display unit may include the touch panel, and the molding condition selection unit may select, from the molding conditions of the items, a molding condition of an item displayed at a position double-typed by the user on the screen of the display unit.(Supplementary Note 9)The resin flow analysis result display system according to any one of Supplementary Notes 1 to 8 may be configured by a plurality of devices connected to each other via a network.(Supplementary Note 10)The control method for the resin flow analysis result display for causing the display unit to display the analysis result obtained in the resin flow analysis includes: obtaining the analysis results respectively associated with each time or each of the screw positions in the resin flow analysis; selecting a molding condition of at least one item from among the molding conditions of the plurality of items set for the injection molding machine; selecting the analysis result according to the selected molding condition of the item; and causing the display unit to display the selected analysis result.(Supplementary Note 11)In the control method for the resin flow analysis result display according to Supplementary Note 10, each of the analysis results may be associated with each of the screw positions in the resin flow analysis, the screw position in the actual casting may be determined according to the selected casting condition of the batch, the screw position in the resin flow analysis corresponding to the determined screw position in the actual casting may be calculated, and the analysis result corresponding to the calculated screw position in the resin flow analysis may be selected.Although the embodiments of the present disclosure are described in detail, the present disclosure is not limited to the above-described embodiments. Various additions, substitutions, modifications, division strokes, and the like can be made to these embodiments without departing from the essence and spirit of the invention or without departing from the spirit and scope of the present invention that will be apparent from the contents described in the claims and their equivalents. For example, in the above-described embodiments, the order of operations and the order of operations are illustrated as examples, but the present invention is not limited to them. The same applies to the case where numerical values or mathematical equations are used in the description of the above-described embodiments.List of reference characters10 Resin flow analysis result display system 16 Display unit 22 Three-dimensional display (analysis result) 36 Casting condition selection unit 38 Analysis result acquisition unit 42 Analysis result selection unit 44 Analysis result display control unit (display control unit) 50 Graphic display (analysis result) 54 Table display (analysis result)References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedJP 2002-361702 A

[0002]

Claims

A resin flow analysis result display system provided with a display unit configured to display an analysis result obtained in the resin flow analysis, the resin flow analysis result display system comprising: an analysis result obtaining unit configured to obtain analysis results respectively associated with each time point or each screw position in the resin flow analysis; a molding condition selecting unit configured to select a molding condition for at least one item from molding conditions of a plurality of items set for an injection molding machine; an analysis result selecting unit configured to select the analysis result according to the selected molding condition of the item; and a display control unit configured to cause the display unit to display the selected analysis result.The resin flow analysis result display system according to claim 1, wherein the items of the molding conditions include at least one item of an injection switching position that is a scroll position at which an injection speed is switched to an injection operation, or an injection / repressing switching position that is a scroll position at which the injection operation is switched to a repressing operation.The resin flow analysis result display system according to claim 1 or 2, wherein the items of the molding conditions include at least one item of a maximum injection time which is a maximum time of an injection operation or a repressing time for which a repressing pressure is held in a repressing operation.The resin flow analysis result display system according to any one of claims 1 to 3, wherein the items of the molding conditions include at least one item of a maximum injection pressure that is a maximum value of an injection pressure in an injection operation, a repressurization pressure in a repressurization operation, or an injection / repressurization switching pressure that is an injection pressure at which the injection operation is switched to the repressurization operation.The resin flow analysis result display system according to any one of claims 1 to 4, wherein the items of the molding conditions include at least an injection speed that is a moving speed of a screw in an injection operation.The resin flow analysis result display system according to any one of claims 1 to 5, wherein each of the analysis results is associated with each of the screw positions in the resin flow analysis, and the analysis result selection unit is configured to: determine the screw position in the actual casting according to the selected casting condition of the batch; calculate a screw position in the resin flow analysis corresponding to the determined screw position in the actual casting; and select the analysis result corresponding to the calculated screw position in the resin flow analysis.The resin flow analysis result display system according to any one of claims 1 to 6, wherein the display unit displays the molding conditions of the respective items, the display unit includes a touch panel, and the molding condition selection unit selects, from the molding conditions of the items, a molding condition of an item displayed at a position touched by the user on a screen of the display unit.The resin flow analysis result display system according to any one of claims 1 to 6, wherein the display unit displays the molding conditions of the respective items, the display unit includes a touch panel, and the molding condition selection unit selects, from the molding conditions of the items, a molding condition of an item displayed at a position double-typed by a user on a screen of the display unit.The resin flow analysis result display system according to any one of claims 1 to 8, wherein the resin flow analysis result display system is configured by a plurality of devices connected to each other via a network.A control method of a resin flow analysis result display for causing a display control unit to display an analysis result obtained in the resin flow analysis, the method comprising: obtaining analysis results respectively associated with each time or each screw position in the resin flow analysis; selecting a molding condition of at least one item from a plurality of items set for an injection molding machine; selecting the analysis result according to the selected molding condition of the item; and causing the display unit to display the selected analysis result.The control method for the resin flow analysis result display according to claim 10, wherein each of the analysis results is associated with each of the screw positions in the resin flow analysis, a screw position in the actual casting is determined corresponding to the selected casting condition of the item; a screw position in the resin flow analysis corresponding to the determined screw position in the actual casting is calculated; and the analysis result corresponding to the calculated screw position in the resin flow analysis is selected.

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