WO1995001865A1 - Method of editing and setting injection velocities for injection molding machine - Google Patents
Method of editing and setting injection velocities for injection molding machine Download PDFInfo
- Publication number
- WO1995001865A1 WO1995001865A1 PCT/JP1994/001095 JP9401095W WO9501865A1 WO 1995001865 A1 WO1995001865 A1 WO 1995001865A1 JP 9401095 W JP9401095 W JP 9401095W WO 9501865 A1 WO9501865 A1 WO 9501865A1
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- WIPO (PCT)
- Prior art keywords
- injection
- injection speed
- screw
- speed
- stage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/766—Measuring, controlling or regulating the setting or resetting of moulding conditions, e.g. before starting a cycle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/90—Measuring, controlling or regulating
- B29C2037/906—Measuring, controlling or regulating using visualisation means or linked accessories, e.g. screens, printers
Definitions
- the present invention relates to a method of editing and setting an injection speed corresponding to a position of an injection screw in an injection molding machine using a display screen and a data input device.
- the screw movement section is divided into a plurality of sections and the injection speed is set for each screw movement section, and the screw movement speed in each screw movement section is set to the injection speed for each section.
- Injection molding machines that control the injection operation so that they coincide with each other are already known.
- the screw movement speed in the same divided section is always constant regardless of the screw position, so that switching of the injection speed is almost Gaussian.
- the screw movement section must first be divided into considerably small sections, and then a large number of the finely divided sections have to be moved. A large amount of time is required because different injection speeds must be individually assigned to each.
- An object of the present invention is that it is necessary to switch the injection speed smoothly.
- An object of the present invention is to provide an injection speed editing and setting method for an injection molding machine that can easily and reliably perform a setting operation performed.
- one embodiment of the present invention provides: (a) displaying coordinates defining one of two axes perpendicular to a screen at a screw position and the other at an injection speed; The section from the first screw position to the second screw position is defined as the first injection stage in all the moving sections of the crieu, and (c the first skew above) A first injection speed corresponding to the screw position and a second injection speed corresponding to the second screw position are determined, respectively. (D) The first injection speed corresponding to the first screw position is determined. The point representing the relationship of the second injection speed with respect to the second screw position and the point representing the relationship of the second injection speed are displayed as the start point and end point of the first injection stage on the rectangular coordinates.
- the second injection position is defined as a section from the second screw position to the third screw position.
- the same processing as (C), (d) and (e) above is sequentially performed for the injection stage and the subsequent injection stages, respectively, and the processing for the final injection stage is completed.
- (H) The result obtained is obtained.
- the relationship between the injection speed and each screw position in the entire travel section of the screw is set and stored in the storage device of the control device of the injection molding machine.c
- an injection molding machine for performing an injection operation so as to coincide with an injection speed set for a screw position.
- the injection speed is divided into a plurality of parts, the injection speed for each screw movement section is determined, and the injection speed is controlled by associating each screw movement section with the injection speed for each screw movement section.
- the relationship between the screw position obtained by performing the injection operation under the set injection conditions and the injection speed, or the screw position and the injection pressure are obtained.
- the corresponding relationship between the set screw movement section and the injection speed is displayed in a graph on the display screen, and the correction section is set with reference to the display screen, and the script is set.
- the re-definition of the menu movement section and the setting of the change characteristic of the injection speed are performed.
- the present invention has the above configuration, a section (injection stage) from a certain screw position to another screw position is designated, and in that section, the injection speed is defined by the relationship of an oblique straight line. It can be easily set using the display screen so as to increase or decrease with an arrow or to increase or decrease with the relation of an arc curve.
- FIG. 1 is a main part block diagram showing an example of an injection molding machine to which the method of the present invention is applied and its control device.
- FIG. 2 is a diagram showing an example of a setting screen of an edit setting process performed by the control device of FIG. 1,
- FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7, and FIG. 8 are a series of flowcharts each showing an outline of the editing setting process according to the method of the present invention performed by the control device of FIG. Some of them,
- Fig. 9 shows the outline of the speed control process by the control device in Fig. 1.
- FIGS. 10 and 11 show a screen before and after the edit setting process according to the method of the present invention, respectively.
- FIG. 12 is a conceptual diagram for explaining the change of the injection condition setting file when the edit setting process is performed by the method of the present invention.
- FIG. 1 is a block diagram showing a main part of an injection molding machine to which the method of the present invention is applied.
- Reference numeral 1 denotes an injection cylinder of the injection molding machine
- reference numeral 2 denotes a screw.
- the screw 2 is driven in the ejection axis direction by an injection servomotor M 1 via a drive converter 5 for converting the shaft rotation of the driving source into a linear motion in the injection axis direction.
- the rotation is performed by the screw rotation servomotor M 2 via the tooth mechanism 3.
- a pressure detector 4 is provided at the base of the screw 2.
- the resin pressure acting in the axial direction of the screw 2, that is, the injection holding pressure in the injection holding pressure process and the metering and kneading process. Screw back pressure is detected.
- a pulse coder P 1 for detecting the position and moving speed of the screw 2 is provided in the injection sensor M 1, and a screw motor M for single screw rotation is provided.
- the 2 the control apparatus 1 0 of the speed detector P 2 is deployed £ injection molding machine for detecting the rotational speed of the scan click Li Yu 2, microphone for numerical control Russia CPU 25 for CNC as a processor, CPU 18 for PMC as a micro processor for a programmable machine controller, and a servo processor as a micro processor for servo control.
- CPU 20 and CPU 17 for pressure monitoring to sample injection holding pressure and screw back pressure through AZD converter 16 and bus 22 Information can be transmitted between the microprocessors by selecting the mutual input and output via the.
- the PMC CPU 18 is connected to a ROM 13 that stores a sequence program for controlling the sequence operation of the injection molding machine and a RAM 14 that is used for temporary storage of operation data and the like.
- the CPU CPU 25 is connected to a ROM 27 storing a program for controlling the entire injection molding machine and a RAM 28 used for temporary storage of operation data and the like.
- the servo CPU 20 is connected to a ROM 21 that stores a control program dedicated to servo control and a RAMI 9 that is used for temporary storage of data
- the pressure monitor CPU 17 is connected to an injection memory.
- pressure pressure Yasu click Li Yu moving speed that is connected RAM 1 2 that can remain use is for temporary storage of ROM 1 1 and data that stores a control program related to the sump-ring processing for monitoring the c
- the servo CPU 20 is provided with respective axes such as a mold clamping, an ejector (not shown), an injection, and a screw rotation based on a command from the CPU 20.
- Driving Servo Mo The output from the pulse coder P 1 installed on the injection servo motor M 1 and the pulse coder P 2 installed on the screw rotation servo motor M 2 are connected to the moving servo chamber 15. Is fed back to the servo CPU 20 and the current position and shift position of the screw 2 calculated by the servo CPU 20 based on the feed knock pulse from the pulse coder P1.
- the moving speed and the rotation speed of screw 2 detected by the speed detector P2 are stored in the current position storage register and the current speed storage register of memory 19, respectively. .
- the values of the screw position and the screw moving speed in the injection process are synchronized with the injection pressure sampling cycle in the same manner as the current position storage register and the current speed storage register described above. And the values of the screw movement speed and injection pressure at each point in time are written into RAM 12 based on the screw position, and the sampling data for the immediately preceding injection process is written. Saved as evening.
- the interface 23 receives signals from the limit switch operating panel installed in each part of the injection molding machine and transmits various commands to peripheral devices of the injection molding machine. It is an input / output interface for communication.
- the manual data input device 29 with display is connected to the bus 22 via the CRT display circuit 26 so that the monitor display screen and function menus can be selected and various data input operations can be performed.
- a numeric keypad for inputting numerical data and various function keys are provided.
- the non-volatile memory 24 is a memory for storing molding data that stores molding conditions (injection conditions, weighing and kneading conditions, etc.) and various set values, parameters, macro variables, etc. relating to the injection molding operation. It is.
- the CNC CPU 25 distributes pulses to the servo motors of each axis based on the control program in the ROM 27, and the servo CPU 20 distributes pulses to each axis.
- the servo CPU 20 distributes pulses to each axis.
- the detectors such as the pulse coder Pl and the speed detector P2.
- position loop control, speed loop control, current loop control, and other servo controls are performed, and so-called digital servo processing is performed.
- FIG. 12 (a) shows the injection conditions provided in the non-volatile memory 24 for storing the correspondence between the screw movement section and the injection speed for each screw movement section.
- FIG. 3 is a conceptual diagram showing a configuration of a setting file.
- the injection condition setting file includes an injection speed switching position corresponding to an injection speed switching position representing a screw movement section. The speed is now memorized. This can be explained with reference to Fig. 10.
- Injection speed switching position S1 is a weighing completion position when the screw advance position is the origin, and injection speed switching position S1 is the same as injection speed switching position S1.
- the first-stage injection speed VI formed between the injection speed switching position S2 and the injection speed switching position S2 is stored corresponding to the injection speed switching position S1 representing the section.
- the injection speed V i is stored corresponding to the injection speed switching position S i.
- the injection condition setting file has an “identification value” column for identifying whether the injection speed V i is set by the initial setting or set by redefinition.
- the initial values of the identification values D i are all 0.
- the operator sets the injection speed switching position based on experience, divides the screw movement section into multiple sections, determines the number of injection stages, determines the injection speed switching position and the injection speed of each injection stage.
- the injection condition setting file as shown in FIG. 12A is initialized as in the conventional case.
- Fig. 9 is a flow chart showing the outline of the injection speed control process that is performed by the CNC for glue 1) 25 in response to the injection start command from the glue 1 11 for glue 11 18.
- the CPU 25 for the CNC initializes the value of the address search index i to 0 (step Tl), and then increments the value of the index i (step ST1).
- Step T2 it is determined whether or not the value of the index i exceeds the set injection stage number (Step T3). If the value of the index i does not exceed the set number of injection stages, the CPU 25 for CNC determines the identification value D i, the injection speed V i, and the next injection stage from the injection condition setting file.
- Injection speed switching position to be the start position
- the value of S i +1 is read (step T 4), and whether or not the discrimination value D i is 0, that is, the injection speed V i of the i-th injection stage is a constant set by the initial setting. Determine if it is
- Step T5 the value of the discrimination value D i is the initial setting value, and is therefore 0, so that C? U25 outputs the set injection speed Vi of the i-th injection stage read from the injection condition setting file to the servo CPU 20 as a speed command, and the injection speed becomes the set injection speed Vi.
- the drive control of the injection servomotor Ml is started (step 6).
- the same sampling processing as the conventional one by the pressure monitor CPU 17 is started, and the values of the screw moving speed and the injection pressure are set based on the screw position. Is written to RAMI2.
- the CNC CPU CPU 25 reads the current position Sn of the screw 2 from the current position storage register of the memory 19.
- Step T 7 it is determined whether or not the screw 2 has reached the injection speed switching position S 1, which is the start position of the next injection stage (Step ⁇ 8). If not, the processing of steps ⁇ 7 and ⁇ 8 is repeated until the determination result of step ⁇ 8 becomes false ( ⁇ ). Then, the driving of the injection vacuum M1 is controlled as it is so that the injection speed becomes the set injection speed V i of the i-th injection stage.
- step T8 determines whether the determination result of step T8 is false, and the screw 2 has reached the injection speed switching position S i +1, which is the start position of the next injection stage.
- CNC CPU 25 moves to the processing of step T2 and increments the value of the index i.
- the CPU 25 for CNC repeats the same processing as described above until the value of the index i exceeds the set injection stage number.
- the injection speed of the i-th injection stage is controlled in accordance with the value of the index i. In this case, the switching of the injection speed is completely the same as the conventional one.
- FIGS. 3 to 8 are flowcharts showing the outline of the editing setting process performed by the CPU 18 for PMC.
- the PMC CPU 18 that has started editing and setting processing in response to the operation of the function keys first displays the screen of the manual data input device 29 with display as shown in Fig. 2. Switch to such an edit setting screen, assign functions to the function keys F1 to F7, and set the shot movement section and set injection set in the injection condition setting file. The corresponding relationship with the speed is displayed on the display screen as a graph (Step Sl).
- the sampling data stored in the RAMI 2 for example, the relationship between the actual injection pressure and the screw position, or , Screw
- the relationship between the U-movement actual speed and the screw position is displayed in a graph.
- C Figure 2 shows the screw movement section and the set injection speed set in the injection condition setting file. This is an example in which the corresponding relationship (solid line in the figure) and the relationship between the actual injection pressure and the screw position (solid line in the diagram) are displayed in a graph.
- the PMC CPU 18 displays a position designation cursor at the (S, V) position on the graph indicating the correspondence between the screw movement section and the set injection speed (see step S4 and FIG. 2). ),
- the right-hand key for moving the cursor, the left-hand moving key for the cursor, the left-hand moving key for the cursor, the moving-key for moving the force-sol, the down-moving key for the force provided on the manual data input device 29 with display Confirm key Enters the wait state to wait for F4 to be operated (loop processing from step S5 to step S9).
- the graph shows the relationship between the screw movement zone and the set injection speed, and the graph showing the relationship between the actual injection pressure and the screw position.
- the PMC CP 18 that repeats the loop processing of steps S5 to S9 executes the force move right key, the cursor left move key, The operation of the cursor up / down key and the cursor down / up key are detected, and the values of the position register S and speed register V are increased / decreased at predetermined intervals a and b according to the key operation.
- the position designation cursor By displaying the position designation cursor at the position of (S, V), the points (S, S) that are currently the starting points are displayed.
- the position data of V) is visually displayed to the operator (step S4).
- step S14 the PMC CPU 18 detects this operation in the discriminating process of step S 9, and performs the finger operation. It is determined whether or not the point identification flag F maintains the initial value 0 (step S14). Since the designated point identification flag F has been initialized to 0 in the processing of step S3, the determination result of step S14 at this point is true. Therefore, the PMC CPU 18 stores the current values of the position register S and the speed register V in the start point position storage register Ss and the start point speed storage register Vs, respectively (step S15).
- Step S16 Set 1 to the indication point identification flag F (Step S16) CPU for PMC with 1 set to the indication point identification flag F 18 shifts to the processing of step S5, and again enters a standby state waiting for operation of the various cursor movement keys or the confirmation key F4 (step S5). ⁇ Lube processing of step S9). Then, the operator operates the various cursor movement keys in the same manner as described above to move the cursor to the desired end position (steps S10 to S13 and the processing of step S4). ), Operate the confirmation key F4.
- the PMC CPU 18 that has detected the operation of the enter key F4 in the determination processing of step S9 performs the determination processing of step S14 in the same manner as described above.
- step S14 Since 1 is already set in the indication point identification flag F, the determination result of step S14 is false (N), and the PMC CPU 18 sends the position register S and the speed register.
- the current value of the scan time V is stored in each of the end point position storage register Se and the end point speed storage register Ve (step S17)
- An example of the start point position P1 ( Figure 10 shows an example of the end position P 2 (S e, V e).
- the usage 118 is used to determine the shape of the line connecting the start point and end point of the correction section, that is, the change characteristic of the injection speed. Then, the system enters a wait state for waiting for the designation (step S18 to loop processing of step S20).
- a straight line or an arc can be selected as the shape of a line connecting the start point (S s, V s) and the end point (S e, V e) of the correction section. It's ok.
- the operator When selecting a straight line as the shape of the line segment, the operator operates the straight line key F 1 to declare the selection of a straight line to the controller 10, and determines the straight line key F 1 in the discrimination processing in step S 18.
- the PMC CPU 18 that has detected the operation of (1) finds the equation of a straight line connecting the start point (S s, V s) and the end point (S e, V e) and temporarily stores this equation in the RAM 14 ( Step S21) This equation is used to determine the injection speed corresponding to the screw position.
- Step S19 the PMC CPU 18 detects this in the discriminating process of step S19 and sets 1 to the convex direction memory register C (step S19). 2 2) If the concave arc key F 3 is operated, it is detected in the discriminating process of step S 20, and 2 is set to the convex direction memory register C (2). (Step S23) c The PMC CPU 18 that has completed the processing of step S22 or step S23 then specifies the arc path point (Sp, Vp).
- the system enters a waiting state (step S24).
- the designation of the arc path point (S p, V p) is performed by keyboard input from the manual data input device 29 with a display, or the same processing as in the above-described steps S4 to S13. It is performed by.
- the PMC CPU 18 detects this in the discrimination process of step S 24, Information on the three points that form the arc (Ss, Vs), (Sp,
- Step S25 This equation is for obtaining the injection speed corresponding to the screw position.
- Figure 10 shows (S p, V p).
- the PMC CPU 18 having obtained the equation of the straight line or the 12 arc in this way initializes the value of the address search index i to 0 (step S26), The value of i is incremented (step S27), and the injection speed switching position S i, which is the start position of the i-th injection, and the i-th injection i ⁇ are determined from the injection condition setting file.
- the value of the injection speed switching position S i +1 which is the start position of the first stage is read (step S -28), and the screw position S s corresponding to the start position of the correction section is S i ⁇ S s> S i +1 or not, that is, whether or not the start point position (S s, V s) of the correction section belongs to the i-th stage of the injection in the injection condition setting file Is determined (step S29). If the start point position (S s, V s) of the correction section does not belong to the injection i-th stage, the PMC until the injection i-th stage to which the start position (S s, V s) of the correction section belongs is detected.
- the CPU 18 sequentially increments the value of the index i, repeats the same processing as described above, and executes the same processing.
- the injection stage to which S s, V s) belongs is detected, and the value of the index i at this time is stored in the start-point injection stage storage register js (step S 30).
- Step S 45 Step S 36 to Step S 42, Step S 46 to Step S 51, or Step Perform the processing of S52 to S58 individually.
- step S35 if the difference between js and je is 1 and the discrimination result of step S35 is false (N), that is, if the starting point position (Ss, Vs) belongs to If the injection stage je to which the end point position (S e, V e) belongs is a stage adjacent to each other, it is defined by the start point position (S s, V s) and the end point position (S'e, V e). The injection stage of the corrected section Since it is newly inserted between is and the injection stage je, the number of injection stages in the injection condition setting file must be increased by one overall.
- 1 ⁇ use the injection condition setting file by shifting the data after the je address in the injection condition setting file down one address at a time to the injection condition setting file.
- a free area for storing information on the correction section is provided (step S36).
- the injection speed V s at the start point position (S s, V s) of the correction section is set as the injection velocity V js of the injection js stage to which the start point position (S s, V s) of the correction section belongs.
- the injection speed V s at the start position (S s, V s) of the injection stage je newly set as the correction section is made to coincide with the injection speed at the end of the injection stage js ( (Step S3 7)
- a screw position S s corresponding to the start point position (S s, V s) of the correction section is set as the newly set injection speed switching position S je of the injection je (step S). 38)
- the injection speed Vje of the section set the equation of the straight line or the 12 arc obtained in the processing of step S21 or step S25.
- a value 1 indicating that the injection speed is set by an equation is set as the identification value D je of the je-th address.
- the end point position of the correction section is determined as the injection speed switching position S + 1 of the injection stage je + 1 located next to the correction section (step S40).
- the screw position S e corresponding to S e, V e) is set (step S 41), and the correction section is set as the injection speed V je +1 of the eleventh injection stage.
- the end point position (S e : V e) of the injection je step newly set as the correction section
- the injection speed Ve at the time of injection and the injection speed at the start of the injection first je + 1 stage are made to match (step S42).
- the modified section was defined by specifying the starting point PI (Ss, Vs) and the ending point P2 (Se, Ve) as shown in Fig. 10.
- the states of the modified injection condition file and the graphs based on the modified injection condition file are shown in Fig. 12 (b) and Fig. 11 . Note that no correction has been made at this time for the correction when the correction section is defined by the start point position P3, the end point position P5, and the arc path point position P4. ) Does not appear on the file, but Fig. 11 shows the state where the work to correct the arc has been completed. V7 in FIG.
- the difference between the ejection stage js to which the start point position (S s, V s) of the correction section belongs and the ejection stage je to which the end point position (S e, V e) belongs is 2; If the determination result of 35 is true (Y) and the determination result of step S45 is false (N), that is, the output stage js to which the start position (S s, V s) belongs When the injection stage je to which the end point position (S e, V e) belongs sandwiches another injection stage, the number of injection stages in the injection condition setting file does not change.
- the tone 1 ⁇ (3 dice 1] 18 is the start point position (S S, V s) of the correction section as the injection speed V js of the injection js stage to which the start position (S s, V s) of the correction section belongs.
- the start position (S s, V s) of the correction section is set as the injection speed switching position S js + 1 of the injection js eleventh stage to be updated and set.
- step S21 or step S25 is set as the injection speed Vjs + 1 for the section.
- the value 1 indicating that the operation is being performed is set (step S49).
- the screw position S e corresponding to the end point position (S e, V e) of the correction section is set (step S 50), and by setting the injection speed V e corresponding to the end point position (S e, V e) of the correction section as the injection speed V of the injection je step,
- the injection speed Ve at the end position (Se, Ve) of the injection js + 1st stage that has been updated and set to match the injection speed at the start of the injection je stage step S 5 1).
- Fig. 12 (c) shows the state of the corrected injection condition file, taking the case where the correction section is specified and defined as an example.
- the difference between the output stage js to which the start position (S s, V s) of the correction section belongs and the injection stage je to which the end position (S e, V e) belongs is 3 or more, Both the judgment result of step S35 and the judgment result of step S45 are true (Y)
- the PMC CPU 18 deletes the data from address js + 2 to address je-1 in the injection condition file and performs blanking-filling sorting processing.
- the storage area of the address js + 1 in the injection condition file is used for setting the correction section (step S52).
- the PMC CPU 18 determines the injection speed V js of the injection js stage to which the start point position (S s, V s) of the correction section belongs at the start point position (S s, V s) of the correction section.
- the injection speed j s the injection speed V s at the start point position (S s, V s) of the i-th stage newly set as the correction section and the injection speed V s
- the injection speed at the end of the js stage is matched with (step S53).
- a screw position S s corresponding to the start point position (S s, V s) of the correction section is set as the newly set injection speed switching position S js +1 of the injection js eleventh stage.
- Step S54 as the injection speed V js +1 of the section, the equation of the straight line or the 12 arc obtained by the processing of Step S21 or Step S25 is used.
- Step S55 and set the js-1 As the address identification value D js + 1, set the value 1 that indicates that the injection speed is set by the equation.
- Step S57 the injection speed Ve corresponding to the end point position (Se, Ve) of the correction section is set as the injection speed js + 2 of the injection speed Vjs + 2.
- step S36 to step S42, or step S46 to step S51, or step S52 to step S52 The PMC CPU 18 that has modified the injection condition file in the processing of step S58, sets the screw travel section based on the modified injection condition file setting data.
- a graph showing the relationship with the injection speed is displayed.
- the correction data is displayed on the screen of the manual data input device with a sprayer and the details of the correction are shown immediately (see step S43 and Fig. 11). Wait until all steps have been completed (step S44).
- the control of the injection speed based on the modified setting conditions of the injection condition storage file is performed as follows in accordance with the injection speed control process shown in FIG.
- ⁇ ⁇ (for 1) 25 initializes the value of the address search index i to 0 (step T 1), The value of the index i is incremented (step T2), and it is determined whether or not the value of the index i exceeds the set number of injection stages (step T3). If the number of injection stages is not exceeded, the CPU 25 for CNC will use the injection condition setting file to determine the identification value D i, injection speed data V i, and the start position of the next injection stage. The value of the speed switching position S i + l is read (step T 4), and whether or not the identification value D i is 0, that is, the injection speed data V i of the i-th injection stage is determined by the initial setting.
- step T5 It is determined whether the expression is an expression (step T5).
- the value of the identification value D i is 0, that is, when the injection speed data V i is a constant, the processing is completely the same as in the related art.
- the CPU 25 for CNC uses the script.
- the current position Sn of user 2 is sequentially read from the current position storage register of memory 19 (step T9), and each time the injection speed switching position S i + which is the start position of the next injection stage is used. It is determined whether or not the screw 2 has reached 1 (step T10). If the screw 2 has not reached the injection speed switching position S i +1, which is the start position of the next injection stage, the step set in the equation set as the injection speed data V i is performed.
- step T11 By solving this equation by substituting the value of the current position Sn read in the processing of step T9, the value of the injection speed corresponding to the current screw position Sn is obtained (step In step T11), the corresponding speed command is output to the servo CPU 20 to control the drive of the injection servomotor M1 (step T12).
- step T12 the processing of step T12 is repeatedly executed, and the injection speed data Vi is set. Control of the injection sub-motor M 1 so that the injection speed changes according to the equation set.
- step T10 When it is detected in step T10 that the current screw position Sn has reached the injection speed switching position S i + 1, the CPU 25 for the CNC is again activated. The process proceeds to step T2, and the value of the index i is incremented.After that, until the value of the index i exceeds the set number of injection stages, the values of the index i and the discrimination value D i are changed. Based on each injection stage, the speed control process of Step T6 to Step T8 or Step 9 to Step 12 is repeatedly executed. That is. If the injection control based on the modified injection condition storage file injection control was not performed but a satisfactory molded product could not be obtained, the same procedure as above was repeated. By repeatedly executing the edit setting process, it is possible to make various corrections to the data of the injection condition setting file.
- injection condition setting file that was set by the initial settings without modifying it
- save the injection condition setting file before starting the edit setting process This data may be duplicated in another file, and the duplicated injection condition setting file may be modified overnight by editing and setting processing.
- the injection speed control process and the edit setting process to be performed after the second time use the default injection condition setting file or modified injection condition setting. Specify one of the files to read. Initial setting of injection control speed setting This is useful when you need to return to a fixed state.
- the embodiment in which the change characteristic of the injection speed in the correction section is defined by a straight line or an arc has been described as an embodiment.
- a parabola, a hyperbola, or the like may be used.
- the screw position that is the correction section is defined only by the two points that define the start point and the end point, and all the velocities in the correction section are obtained by solving an equation that uses the current screw position as a variable. Therefore, even if a complex change characteristic such as a parabola or a hyperbola can be defined by a functional expression, as in the present embodiment, even if the characteristic is a complex change characteristic such as a parabola or a hyperbola, Speed control can be performed.
- the correspondence between the initially set screw movement section and the injection speed is displayed on the display screen as a graph, and the starting point on the graph is displayed.
- a new correction section is set by specifying the start point and end point, and the shape of the line segment connecting the start point and end point of the section is specified, so that the change characteristics of the injection speed in the correction section can be set arbitrarily. Therefore, it is possible to freely set the injection speed change characteristics without subdividing the screw movement section and setting the injection speed, and to control the injection by smoothly changing the injection speed. Even in such a case, the required injection speed change characteristics can be easily set.
- the script obtained by performing the injection operation under the set injection conditions The setting operation can be performed while the correspondence between one position and the injection speed or the correspondence between the screw position and the injection pressure is displayed on the display screen and referenced.
- the correction section and the change characteristics of the injection speed can be properly reset.
- the start point P 1 and the end point P 2 of the first correction section are set on a straight line indicating the relationship between the screw position and the injection speed as shown in FIG.
- the starting point P3 and P5 of the second correction section are specified to correct the relationship between the screw position and the injection speed as shown in Fig. 11.
- the point (S1, V1) By specifying the point and the point (S2, VI), and specifying that both points are connected by a straight line, the injection speed of the first stage of injection is determined.
- the third injection in which the point (S s, V s) and the point (S e, V e) are specified, and then both points may be specified by connecting them with a straight line.
- the following other injection stages are determined in the same manner.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/392,945 US6066276A (en) | 1993-07-08 | 1994-07-05 | Injection speed editing/setting method for an injection molding machine |
| EP94919854A EP0664199B1 (en) | 1993-07-08 | 1994-07-05 | Method of editing and setting injection velocities for injection molding machine |
| KR1019950700885A KR960700877A (ko) | 1993-07-08 | 1994-07-05 | 사출성형기의 사출속도 편집 설정 방법 |
| DE69433658T DE69433658T2 (de) | 1993-07-08 | 1994-07-05 | Verfahren zum verarbeiten und einstellen von spritzgeschwindigkeiten in spritzgiessmaschinen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5/192697 | 1993-07-08 | ||
| JP19269793A JP3162549B2 (ja) | 1993-07-08 | 1993-07-08 | 射出成形機の射出速度編集設定方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995001865A1 true WO1995001865A1 (en) | 1995-01-19 |
Family
ID=16295549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1994/001095 Ceased WO1995001865A1 (en) | 1993-07-08 | 1994-07-05 | Method of editing and setting injection velocities for injection molding machine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6066276A (ja) |
| EP (1) | EP0664199B1 (ja) |
| JP (1) | JP3162549B2 (ja) |
| KR (2) | KR960700877A (ja) |
| DE (1) | DE69433658T2 (ja) |
| WO (1) | WO1995001865A1 (ja) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1128751A (ja) * | 1997-07-09 | 1999-02-02 | Niigata Eng Co Ltd | 射出成形機の駆動制御装置 |
| JP3519604B2 (ja) * | 1998-05-28 | 2004-04-19 | ファナック株式会社 | 射出成形機における成形条件再生装置 |
| JP2002361702A (ja) * | 2001-06-04 | 2002-12-18 | Fujitsu Ltd | 射出成形機、射出成形機制御装置、射出成形機制御方法および射出成形機制御プログラム |
| JP4210099B2 (ja) * | 2002-10-29 | 2009-01-14 | 東芝機械株式会社 | 射出成形機 |
| US7346425B2 (en) * | 2005-04-27 | 2008-03-18 | Toshiba Kikai Kabushiki Kaisha | Control device for use in injection molding machine |
| JP4594160B2 (ja) * | 2005-04-28 | 2010-12-08 | 東芝機械株式会社 | 射出成形機の制御装置 |
| US20070156279A1 (en) * | 2005-10-19 | 2007-07-05 | Husky Injection Molding Systems Ltd. | Molding machine having human-machine interface |
| JP4091631B2 (ja) * | 2005-11-17 | 2008-05-28 | ファナック株式会社 | 機械の信号処理装置 |
| DE102010024246A1 (de) | 2010-06-18 | 2011-12-22 | Netstal-Maschinen Ag | Verfahren und Vorrichtung zum Betrieb einer angetriebenen Achse bei einer Werkzeugmaschine |
| JP5897682B1 (ja) * | 2014-10-10 | 2016-03-30 | ファナック株式会社 | 固定子の通気路、またはファンを清掃可能な電動機、および電動機の清掃システム |
| JP7362530B2 (ja) * | 2020-03-31 | 2023-10-17 | 住友重機械工業株式会社 | 射出成形機、射出成形システム |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542577A (ja) * | 1991-08-14 | 1993-02-23 | Ube Ind Ltd | 射出成形機の射出制御方法および装置 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306214A1 (de) * | 1982-02-23 | 1983-09-08 | Toshiba Kikai K.K., Tokyo | Vorrichtung zum messen der einspritzgeschwindigkeit einer druckgussmaschine |
| JPS60108155A (ja) * | 1984-04-10 | 1985-06-13 | Ube Ind Ltd | 射出速度制御方法 |
| JPS61220818A (ja) * | 1985-03-28 | 1986-10-01 | Fanuc Ltd | 計量・混練条件をグラフ表示する射出成形機 |
| JPS62218120A (ja) * | 1986-03-20 | 1987-09-25 | Fanuc Ltd | 射出速度の加減速時間が変更できる射出成形機 |
| JPS63130326A (ja) * | 1986-11-20 | 1988-06-02 | Nissei Plastics Ind Co | 射出成形機の成形条件設定装置 |
| JPH0659675B2 (ja) * | 1987-01-30 | 1994-08-10 | 住友重機械工業株式会社 | 射出圧力設定方法及び射出成形機 |
| US5031127A (en) * | 1987-11-27 | 1991-07-09 | Toshiba Machine Co., Ltd. | Molten injection-molding method |
| DE3803832A1 (de) * | 1988-02-09 | 1989-08-17 | Bayer Ag | Substituierte vinylazole |
| US5030395A (en) * | 1988-03-08 | 1991-07-09 | Fanuc Ltd. | Method and an apparatus for pressure control of a motor-operated injection-molding machine |
| JPH07115399B2 (ja) * | 1988-03-28 | 1995-12-13 | ファナック株式会社 | 射出成形機の成形条件記録装置 |
| GB8828713D0 (en) * | 1988-12-08 | 1989-01-11 | Vickers Systems Ltd | Apparatus & method for simultaneous control of two/more related variables |
| JP2608784B2 (ja) * | 1989-07-27 | 1997-05-14 | ファナック株式会社 | 電動式射出成形機 |
| JP2650070B2 (ja) * | 1991-01-14 | 1997-09-03 | ファナック株式会社 | 射出圧力制御における圧力波形設定方法及び射出成形機 |
| US5470218A (en) * | 1993-07-07 | 1995-11-28 | Wheaton Inc. | Graphical interface driven injection blow molding apparatus |
| JP2779759B2 (ja) * | 1993-12-15 | 1998-07-23 | 日精樹脂工業株式会社 | 射出成形機の射出制御方法 |
-
1993
- 1993-07-08 JP JP19269793A patent/JP3162549B2/ja not_active Expired - Fee Related
-
1994
- 1994-07-05 DE DE69433658T patent/DE69433658T2/de not_active Expired - Fee Related
- 1994-07-05 EP EP94919854A patent/EP0664199B1/en not_active Expired - Lifetime
- 1994-07-05 KR KR1019950700885A patent/KR960700877A/ko active Granted
- 1994-07-05 KR KR1019950700885A patent/KR0145194B1/ko not_active Expired - Fee Related
- 1994-07-05 US US08/392,945 patent/US6066276A/en not_active Expired - Fee Related
- 1994-07-05 WO PCT/JP1994/001095 patent/WO1995001865A1/ja not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542577A (ja) * | 1991-08-14 | 1993-02-23 | Ube Ind Ltd | 射出成形機の射出制御方法および装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3162549B2 (ja) | 2001-05-08 |
| EP0664199A4 (en) | 1997-07-02 |
| DE69433658T2 (de) | 2005-02-10 |
| KR960700877A (ko) | 1996-02-24 |
| KR0145194B1 (ko) | 1998-07-15 |
| EP0664199A1 (en) | 1995-07-26 |
| EP0664199B1 (en) | 2004-03-31 |
| JPH0724887A (ja) | 1995-01-27 |
| US6066276A (en) | 2000-05-23 |
| DE69433658D1 (de) | 2004-05-06 |
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