JP4804017B2 - Molding apparatus and abnormality display method thereof - Google Patents

Description

  The present invention is a molding apparatus and an abnormality display method for displaying an abnormality portion by an abnormality detection sensor as a photographic image and simultaneously displaying the abnormality content solving technique flow chart.

  A molding apparatus, particularly a blow molding apparatus, is basically an extruder that heats and melts a thermoplastic resin and continuously extrudes it from a die using a screw, and a blowing apparatus that expands the extruded parison in a closed mold by compressed air. , And a blow molded product take-out device. Furthermore, in order to inspect troubles in these operating parts, an abnormality detection sensor is provided in these operating parts. Normally, all of these abnormality detection sensors are displayed on a display screen showing the entire molding apparatus, that is, an operation panel screen.

  When an abnormality occurs, the location of the abnormality detection sensor is displayed on the display screen showing the entire molding apparatus, and the operator responds to eliminate the content of the abnormality.

  However, the display screen showing the entire molding apparatus is different for each molding apparatus, and creating these display screens requires a great deal of labor.

  Therefore, for example, a method for improving the display screen of the abnormality detection sensor as shown in Patent Document 1 has been proposed.

Hereinafter, this method will be described. An abnormality detection sensor is provided at each of the plurality of operation units, and when an abnormality occurs, an abnormality display screen of the first hierarchy is displayed and an abnormality display screen of the second hierarchy is displayed. On the first level abnormality display screen, an overall configuration diagram of the apparatus and a sensor symbol are displayed, and a sensor symbol corresponding to the sensor that detects the abnormality blinks. On the second level abnormality display screen, a photograph of one part where an abnormality has been detected and a sensor symbol indicating each of the abnormality detection sensors in the photograph part are displayed. The sensor symbol corresponding to the sensor that detected the abnormality is displayed blinking.
JP 2003-170489 A

  However, even in a molding apparatus provided with the above-described abnormality detection method, a display screen showing the entire configuration of the molding apparatus is required, and the creation effort is still not eliminated.

  The present invention is intended to solve the problems of such a conventional molding apparatus, and when an abnormality occurs, a solution method flow diagram of the abnormality content is displayed on the screen of the operation panel, and at the same time, the abnormality is detected. The photograph including the detected operating part and the abnormality sensor installed on it is displayed on the same screen of the operation panel, allowing the operator to quickly investigate the cause of the abnormality and further reduce the response time. An object of the present invention is to realize a molding apparatus and an abnormality detection method thereof.

In order to achieve the above object, the present invention provides at least one abnormality detection sensor in each of the desired operation parts among a plurality of operation parts for molding, and when the abnormality is detected by the abnormality detection sensor, Resolve each of the operation part in which an abnormality is detected, a photograph of the abnormality detection sensor arranged in the operation part, a region for enumerating and displaying a plurality of abnormality contents, and the plurality of abnormality contents The molding apparatus includes an abnormality detection control unit that displays an area for displaying the corresponding method flow diagram on the same screen of the operation panel.

The abnormality detection control of the molding apparatus according to the present invention enumerates the abnormality contents in an area in which the plurality of abnormality contents are listed and displayed in descending order of priority from the abnormality contents having the highest priority based on the severity of the abnormality contents. In addition, the operation part corresponding to the uppermost abnormality content and the abnormality sensor disposed in the operation part are photographed in the area for displaying the photograph in the same screen and the display area of the solution flow chart. The above-mentioned photograph and the solution method flow chart for the top abnormality content are displayed, and other abnormality content different from the top abnormality content displayed in the area for listing and displaying the plurality of abnormality contents is displayed by the operator. When touched, the abnormality detection control unit is disposed in the operation unit corresponding to the other abnormality content touched in the region where the photograph is displayed and the operation unit. Causes display is switched to the photograph obtained by photographing the abnormal sensor, it is intended to be displayed by switching the resolution method flow diagram corresponding to another abnormality what is the touch on the display area of the resolution techniques flow diagram.

The molding apparatus according to the present invention is preferably a blow molding apparatus, but can of course be applied to other general molding apparatuses .

According to a second means for solving the problem, a photograph angle switching button is provided on the same screen of the operation panel, and the abnormality detection control unit displays the photograph in an area where the photograph is displayed by operating the photograph angle switching button. Instead of this, it is configured to switch and display the photograph taken by changing the angle of the abnormally detected operating part corresponding to the photograph.

The third problem solving means detects an abnormality when an abnormality occurs in these operating parts by an abnormality detecting sensor provided in each of the desired operating parts among a plurality of operating parts for molding, A display area that lists and displays multiple error contents that occurred in descending order of priority from the contents of the highest-priority abnormality based on the severity of these abnormality contents, and the above-mentioned highest abnormality contents are detected. The same screen of the operation panel is displayed on the operation panel and a photograph of the abnormality sensor arranged in the operation part and an area for displaying a method flow diagram for solving the highest abnormality content among the plurality of abnormality contents Then, the above-mentioned plurality of abnormality contents are listed in the display area where the priorities are listed in order from the highest abnormality contents on the basis of the severity of these abnormality contents. When different other abnormalities content and normal content is touched by the operator, distributing the operating unit corresponding to the other abnormal content that is the touch in the region for displaying the photos in the same screen and said operation portion Switch the displayed abnormality sensor to the photographed image and switch to the solution flow diagram corresponding to the other abnormality content touched in the area to display the method flow diagram to be solved in the same screen. This is a method for displaying an abnormality in the molding apparatus.

The fourth problem solving means is that the abnormal detected operation corresponding to the photograph instead of the photograph displayed in the region where the photograph is displayed by operating the photograph angle switching button provided on the same screen of the operation panel. This is an abnormality display method of a molding apparatus that switches to a photograph taken by changing the angle of the part.

The operation of the first problem solving means is as follows .

When an abnormality is detected by the abnormality detection sensor, and a display area for displaying enumerating several abnormal content that occur, operating unit and priority of these abnormal content is best abnormal content is detected the operating unit The photograph of the abnormality sensor arranged in the above and the area for displaying the flow chart of the method for solving the highest abnormality content are displayed on the same screen of the operation panel, and the operator of the molding apparatus is displayed on the operation panel screen. This makes it possible to quickly and objectively understand the anomalous locations and their solution flow, allowing the operator to quickly investigate the cause of the anomaly and respond to the initial action when an anomaly occurs.

In addition, the detected abnormality contents are displayed on the operation panel display screen in the area where the plurality of abnormality contents are listed and displayed in descending order of severity of the abnormality contents from the abnormality contents with the highest priority. However, it is possible to preferentially resolve important abnormal contents, and as a result, the entire abnormal contents can be efficiently solved.

The operation of the second problem solving means has the effect that the operator can easily grasp the contents of the abnormality more visually because the photograph screen of the operating portion displayed in three dimensions is displayed on the operation panel screen.

The action by the third means for solving problems is a display area in which a plurality of abnormal content that occurred priority based on the significance of these abnormal content is displayed are listed in descending order from the contents of the uppermost abnormal, the and techniques flow diagram for solving the contents of the top of the abnormality, on the same screen of the uppermost abnormal operation and a photograph of the abnormality detection sensor disposed in the operating unit and the operating unit detected panels Since the molding device abnormality display method is displayed, the operator of the molding device can visually and quickly determine the location of the abnormality and the contents of the abnormality on the operation panel screen during molding. On the other hand, it is possible to quickly investigate the cause of an abnormality and respond to the initial action when an abnormality occurs even more quickly.

In addition, among the abnormal contents detected and displayed on the display screen of the operation panel, the operator touches the other abnormal contents different from the uppermost abnormal contents, and the corresponding abnormal part operating part and the operating part are touched. Switch to the photographed image of the abnormal sensor installed, and switch to the solution flow diagram corresponding to the other abnormal content touched above and display it on the same screen of the operation panel, so that the operator The response that should be resolved preferentially from the contents can be performed, and as a result, the effect of efficiently resolving the overall abnormal contents can be achieved.

The operation by the fourth problem solving means has the effect that the operator can easily grasp the contents of the abnormality more visually because the photograph screen of the operating portion displayed in three dimensions is displayed on the operation panel screen.

  As described above, when the abnormality is detected by the abnormality detection sensor, the molding apparatus of the present invention and the abnormality display method thereof include a method flow diagram for solving the contents of the abnormality, an operation unit in which the abnormality is detected, and A photograph of the abnormality detection sensor disposed in the operating unit is displayed in a predetermined area of the operation panel screen, and the operator of the molding apparatus can visually and quickly identify the abnormality location and the solution flow thereof on the operation panel screen. This makes it possible to make an objective determination, allowing the operator to quickly investigate the cause of the abnormality and respond to the initial action when the abnormality occurs even more quickly.

  As shown in FIGS. 1 and 3, a blow molding apparatus according to an embodiment of the present invention includes an extruder 1, a crosshead 3, a parison cutting device (not shown), and a molding die as operating parts for molding. 5, an air blowing device 6, a mold clamping device 7, a molding die moving device 8, and a molded product removing device 9.

  The extruder 1 includes a hopper 11 for charging a resin composition, and a screw (not shown) for transferring, kneading, melting, and discharging the resin composition inside the extruder. The extruder 1 itself is provided on the base 10. In the figure, 14 is an extruder drive motor.

  As shown in FIG. 3, the cross head 3 is for multiple heads and is connected to the tip of the extruder 1. The resin composition melted in the extruder 1 is supplied from the extruder 1 to the crosshead 3 so that the cylindrical parison p shown by the two-dot chain line in the figure is formed as shown in FIG. It has become.

  The parison cutting device (not shown) cuts the upper part of the cylindrical parison p hanging from the cross head 3 and includes a cutter holder having an electric heating cutter.

  As shown in FIGS. 1, 2 and 4, the molding die 5 is composed of a pair of split dies 5a and 5b, and a cylindrical parison p is inserted into these split dies, as shown in FIG. A cavity (not shown) for forming such a hollow molded product B is formed.

  The molding die 5 is moved by a molding die moving device 8 having an accompanying die moving electric motor, at positions immediately below the multi-head crossheads 3, 3 and the right and left air blowing nozzles 61, 61 of the air blowing device 6. It is designed to reciprocate alternately in the horizontal direction between the positions immediately below.

  As shown in FIGS. 3, 4, and 5, the air blowing device 6 is inserted into the cylindrical parison p above each of the left and right cavities of the molding die 5 to blow compressed air. A nozzle 61 and an air blowing nozzle driving device 62 for raising and lowering the air blowing nozzle 61 are provided. The air blowing nozzle driving device 62 is a variable speed type blowing device driving motor connected to a control unit (not shown).

  The air blowing nozzle 61 is supplied with compressed air supplied from an air source (not shown), and blows air into the cylindrical parison p supplied into the left and right cavities of the molding die 5. .

  As shown in FIG. 1, the mold clamping device 7 clamps the split molds 5a and 5b of the molding die 5, and includes platens 71 and 72 for mounting the split molds 5a and 5b, respectively, and a platen 72. It comprises a platen support plate 73 to be supported, a mold clamping drive mechanism to be described later between the platen 71 and the rear plate 74, and the like.

  The mold clamping device 7 itself can move on the molding device main body base 12 in a direction orthogonal to the paper surface of FIG. Three tie bars 75a, 75b, and 75c that fasten the platen support plate 73 and the rear plate 74 are inserted into the movable base 13, and the bracket 84 connects the upper two tie bars 75a and 75b to FIG. The platen 71 is inserted in the direction parallel to the paper surface and supported horizontally, and the slide collars 71a, 71b, 71c of the platen 71 are inserted into the tie bars 75a, 75b, 75c to move the platen 71 in the axial direction of the tie bars. Supports freely.

  The bracket 84 is slidably inserted into the tie bars 75a and 75b, and a pair of plates 85a and 85b standing on the upper surface of the bracket are supported. A reduction gear (not shown) and an electric motor 15 are attached to the plate 85a, and a rotary disk (not shown) is connected to the output shaft of the reduction gear. The electric motor 15 is easy to control the rotation of a servo motor or the like.

  The mold clamping drive mechanism of the mold clamping apparatus 7 has the following configuration. That is, one end of a rotatable link arm 77a is rotatably connected via a bracket 76 provided at the upper end of the rear plate 74, and the other end of the link arm 77a is rotatable to the rotating disk. It is connected. One end of the other link arm 77b is rotatably connected to a bracket 78 provided at the upper end of the back surface of the platen 71, and the other end of the link arm 77b is rotatably connected to the rotating disk. . As the rotating disk rotates, the link arms 77a and 77b move, and the platen 71 slides along the three tie bars 75a, 75b, and 75c according to the movement, and passes through the rear plate 74 and the tie bars 75a, 75b, and 75c. Thus, the split mold 5a approaches and separates from the other split mold 5b.

  The molded product take-out device 9 has a structure as shown in FIGS. After the blow molding is completed, the hollow molded product B indicated by the two-dot chain line in the figure is sandwiched between the separated split dies 5a and 5b by the product holder (not shown) extending from the side surface of the platen 72, and the molded product take-out device 9 However, these hollow molded products B are further gripped, removed from the blowing line, and transferred to the product outlet.

  Such a blow molding apparatus is further provided with a sensor for detecting an abnormality in each of the operating parts described above. For example, an air blowing device abnormality detection sensor will be described below.

  As shown in FIG. 5, the air blowing device abnormality detection sensor detects a position detection plate 64 provided on a movable base 63 located above the left and right air blowing nozzles 61 of the air blowing device 6 at a fixed point for driving up. The proximity sensor 65 and the proximity sensor 66 that detects at the fixed descent point.

  Next, the operation of the blow molding apparatus and the embodiment of the abnormality content display method in the blow molding apparatus will be described together.

  In the blow molding by the blow molding apparatus, the resin is suspended from the multi-head crosshead 3 to form the left and right cylindrical parisons p, and the parisons p are inserted into the respective cavities of the molding die 5, and then the parison p A bottle, which is a hollow molded product B, is molded by blow molding in which air is blown into the parison p from the air blow nozzles 61 and 61 corresponding to the above and the parison p is expanded until it matches the cavity of the molding die 5. . Then, the split molds 5a and 5b of the mold 5 are separated from each other, and the molded product B is removed from the blowing line by the gripping of the product take-out device 9 and transferred to the product outlet.

  In such a blow molding apparatus, when an abnormality is detected by the above-described abnormality detection sensor or the like, as shown in FIG. 6, an abnormality detection control connected to the abnormality detection sensor group 90 including the above-described abnormality detection sensors 65 and 66. The unit 100 reacts to operate the abnormal content display circuit 101 to display the abnormal content on the display screen 111 of the operation panel 110 shown in FIG. 7, and to operate the abnormal alarm buzzer 102 to generate an alarm. Then, the signal tower 103 is operated to flash a red or yellow signal according to the type of abnormality. At the same time, depending on the type of alarm, the automatic stop circuit 104 of the molding machine is activated to immediately stop the operation of the molding machine, or the cycle stop circuit of the molding machine is activated to perform only the molding cycle in the molding machine. Stop. At the same time, according to the type of alarm, the extruder drive motor stop circuit 106 is operated to stop the drive motor of the extruder. In FIG. 7, reference numerals 90a, 90b,..., 90n-1, 90n denote other abnormality detection sensors. Here, n represents a positive integer of 2 or more.

  On the touch panel display screen 111 of the operation panel 110 shown in FIG. 7, as shown in FIG. 8, the photograph X of the corresponding operation unit including the corresponding abnormality detection sensor is displayed in the photograph display area 112, and the content of the abnormality Is displayed on the right side of the screen. In FIG. 7, reference numeral 112 denotes various operation buttons.

  A photograph X shown in FIG. 8 shows a driving up fixed point proximity sensor 65, a driving down fixed point sensor 66, a position detecting plate 64 of the air blowing device 6, and a mechanism portion around them. The abnormality content displayed in the solution flow chart 113 shown in FIG. 8 is a case where the up / down motion is a trouble during the driving operation, and the ascending fixed point sensor is not turned on when the driving is raised.

  Switching to the abnormal display screen is performed directly from the main menu screen or various sub-menu screens by the operation of the abnormality detection control unit 100.

  If the rising fixed point sensor is not turned on when the driving is raised, a flowchart 113 showing the solution is as shown in FIG. That is, as shown in step S1 in the figure, if the ascending fixed point sensor is not turned ON, the molding machine automatically stops immediately and the extruder drive motor 14 also stops. Then, as shown in step S2, it is determined whether or not the position is the driving up position. If yes, whether the position detecting plate 64 has reached the driving up fixed point detecting proximity sensor 65 as shown in step S3. If NO in step S2, as shown in step S4, whether or not the coupling 89 between the servo motor shaft 87 and the ball screw 88 of the air blowing nozzle driving device 62 shown in FIG. Determine whether.

  If Yes in step S3, the sensor 65 is checked as shown in step S5, and if necessary, this sensor is replaced. If No in step S3, the position of the sensor 65 is adjusted as shown in step S6.

  If Yes in step S4, the above-described coupling tightening adjustment is performed as shown in step S7. If No in step S4, as shown in step S8, the encoder of the servo motor of the air blowing nozzle driving device 62, the encoder cable communicating from this encoder to the sequencer, and the sequencer are checked, and if necessary, these components are replaced.

  In the case of step S7 and step S8, the re-origin adjustment of the air blowing nozzle drive device 62 is performed as shown in step S9.

  After eliminating the cause in the steps S5, S6, and S9, as shown in step S10, the trouble reset key (not shown) is continuously pressed for 3 seconds or more. As a result, the reset is completed.

  An abnormal display area 114 and a photo angle switching button 115 are provided at the lower left of the display screen 111 of the operation panel 110. When there are a plurality of abnormal contents, they are listed in each column of the abnormal content display area 114 according to a predetermined rule. That is, the abnormality detection control unit 100 lists and displays the plurality of abnormality contents in the abnormality content display area 114 in order from the abnormality contents with the highest priority on the basis of the severity of the abnormality contents. For example, as shown in FIG. 8, the contents of the abnormality are displayed in the blank areas of items 1, 2, and 3 in the display area 114 in accordance with such rules.

  In this case, the abnormality detection control unit 100 operates according to the program flow shown in FIG. 9 as follows. That is, first, as shown in step S20, it is determined whether or not there are a plurality of abnormal contents. If yes, as shown in step S21, the abnormal contents display area 114 is listed and displayed in order from the top of the plurality of columns according to the rules described above. And as shown in step S22, the photograph X of the operation part corresponding to the abnormal content to be described in the uppermost column is displayed in the photograph area 112. Further, when the operator touches and specifies the content of the abnormality described in the second and subsequent columns from the top, as shown in step S23, a photograph of the operation unit corresponding to the content is displayed in the photo area 113, and A solution flowchart of the content of the abnormality is displayed on the right side of the screen 111.

  In the case of No in step S20, as shown in step S24, the abnormality content is displayed in the uppermost column of the abnormality content display area 114, and a photograph of the operation unit corresponding to the abnormality content is displayed in the photograph area 112. .

Abnormality detection control unit 100 of the program also the lower right of the screen side of the photo angle changeover button 115 shown in FIG. 9 is an operator touches, the abnormality of the operation section photograph was taken from a different direction ie other angle screen Y For example, as shown in FIG. Such a photograph is not limited to a photographic image from one direction, but may be a photographic image obtained by copying the same part from another angle. The point is that the photograph may be a photograph that allows the operator of the molding apparatus to judge the abnormal part in a three-dimensional manner more easily.

  Such a program is processed according to the flow shown in FIG. That is, when the photograph angle switching button 115 is touched in step S30, as shown in step S31, a photograph screen in which the abnormal operation part is photographed from another angle is displayed. Further, if desired, by repeatedly touching the photograph angle switching button 115, the operation of step S30 and then step S31 can be repeated to display photographs of other angles of the same operation unit.

The side view of the shaping | molding apparatus which shows embodiment of this invention Top view of the molding equipment Front view showing details of front part of molding apparatus Side view showing enlarged mold and clamping device The perspective view which shows the abnormality detection sensor in an air blowing apparatus Block diagram showing anomaly detection sensor, anomaly detection control unit, and controlled unit Top view showing the operation panel Front view showing the display screen of the operation panel displaying a photograph of the abnormal operation part and a flow chart of the abnormal solution technique Program flow diagram of the abnormality detection control unit showing the switching of multiple abnormality contents on the display screen The front view which shows the display screen of the operation panel which displayed the photograph of another angle different from the photograph shown in FIG. Program flow diagram of the anomaly detection control unit showing switching of different angle photos on the anomaly content display screen

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Extruder 2 ... Cross head 5 ... Molding die 6 ... Air blowing apparatus 7 ... Clamping apparatus 8 ... Mold moving apparatus 61 ... Air blowing nozzle 64 ... Position detection plate 65 ... Improving fixed point proximity sensor 66 ... Descent fixed point proximity sensor 90 ... Abnormality detection sensor group 100 ... Abnormality detection control unit 110 ... Operation panel 111 ... Display screen 112 ... Photo display area 113 ... Abnormal content solution technique flow diagram 114 ... Abnormal content display area 115 ... Photo Angle switch button X ... Photo Y ... Photo X

Claims (4)

At least one abnormality detection sensor is provided in each of the desired operation parts among a plurality of operation parts for molding, and when the abnormality is detected by the abnormality detection sensor, the operation part in which the abnormality is detected and the operation part A photograph of the abnormality detection sensor disposed in the area, an area for listing and displaying a plurality of abnormality contents that have occurred, and an area for displaying a corresponding technique flow diagram for solving each of the plurality of abnormality contents Is displayed on the same screen of the operation panel, and the abnormality detection control enumerates the plurality of abnormality contents in descending order of priority from the abnormality contents with the highest priority on the basis of the severity of the abnormality contents. In the display area, the abnormal contents are listed and displayed, and the display area of the photograph in the same screen and the display area of the solution technique flow diagram are displayed in advance. Display the action part corresponding to the highest abnormality content, a photograph of the abnormality sensor arranged in the action part, and the solution method flow diagram of the highest abnormality content, and list and display the plurality of abnormality contents When another abnormality content different from the uppermost abnormality content displayed in the area is touched by the operator, the abnormality detection control unit changes the other abnormality content touched in the area displaying the photograph. Solution method flow diagram corresponding to the other abnormality content touched in the display area of the solution method flow diagram while switching the corresponding operation unit and the abnormality sensor arranged in the operation unit to the photographed image to be displayed A molding apparatus characterized by being switched to and displayed. A photograph angle switching button is provided on the same screen of the operation panel, and the abnormality detection control unit corresponds to the photograph instead of the photograph displayed in the area where the photograph is displayed by the operation of the photograph angle switching button. The molding apparatus according to claim 1, wherein the photographed image is switched and displayed by changing the angle of the abnormally detected operation part. When an abnormality occurs in these operating parts by an abnormality detecting sensor provided in each of the desired operating parts among a plurality of operating parts for molding, the abnormality is detected, and the contents of the plurality of abnormalities generated are detected. A display area that lists and displays in order from the content of the highest-priority abnormality on the basis of the severity of the abnormality content, and the operation unit in which the highest abnormality content is detected among these abnormality contents and the operation unit A photograph of the arranged abnormality sensor and an area for displaying a method flow diagram for solving the highest abnormality content among the plurality of abnormality contents are displayed on the same screen of the operation panel, and then the plurality of the abnormality sensors are displayed. the abnormal content based on the significance of these abnormal content different priorities other than said uppermost abnormality contents displayed in the display area for displaying listed in descending order from the uppermost abnormal content When the normal content is touched by the operator, the operation unit corresponding to the other abnormal content touched in the region displaying the photograph in the same screen and the abnormality sensor disposed in the operation unit are photographed. And switching to a solution method flow diagram corresponding to the other touched abnormal content in the area for displaying the method flow diagram to be solved in the same screen. An abnormality display method for a molding apparatus. Taken by changing the angle of anomaly to be detected operation unit corresponding to the photograph in place of the photograph is displayed in the region for displaying the photos by the operation of the pre-Symbol the photographic angle change button provided on the same screen of the operation panel The abnormality display method for a molding apparatus according to claim 3, wherein the display is switched to a photograph.