JP2007210125A - Operation system of molding machine and operation method of molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the maintenance of a molding machine. <P>SOLUTION: This operation system of the molding machine has an injection device 51, a mold assembly 52, a mold clamping device 53, an imaging device for photographing a monitor place, an image processing means for performing image processing on the basis of the image of the monitor place, a maintenance judge processing means for judging whether maintenance is necessary with respect to the monitor place on the basis of the result of image processing and a maintenance processing means for performing maintenance with respect to the monitor place in a case that maintenance is necessary. Image processing is performed on the basis of the image of the monitor place and it is judged whether maintenance is necessary and, in a case that maintenance is necessary, a maintenance operation device is operated to perform maintenance with respect to the monitor place. The maintenance of the molding machine can be performed easily. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a molding machine operation system and a molding machine operation method.

  Conventionally, in a molding machine, for example, an injection molding machine, a resin as a molding material heated and melted in a heating cylinder is injected at a high pressure to fill the cavity space of the mold apparatus, and in the cavity space. A molded product is obtained by cooling and solidifying.

  The injection molding machine includes a mold device, a mold clamping device, and an injection device, and the injection device includes a heating cylinder that heats and melts the resin, and an injection nozzle that injects the molten resin, A screw is disposed in the heating cylinder so as to be rotatable and freely movable back and forth. Further, by moving the movable mold forward and backward by the mold clamping device, the mold device is closed, clamped and opened, and a cavity is formed between the fixed mold and the movable mold as the mold is clamped. A space is formed.

  Then, by driving the injection motor to advance the screw, the resin is injected from the injection nozzle and filled into the cavity space. In addition, resin is weighed by driving a metering motor as a metering drive unit and rotating a screw, and the melted resin is stored in front of the screw head.

In addition, the operator can operate the operation unit to start or stop the operation of the injection molding machine or change molding conditions (see, for example, Patent Document 1). .
Japanese Unexamined Patent Publication No. 7-46675

  However, in the conventional injection molding machine, when a molded product remains in the mold apparatus, the operator needs to remove the molded product. When the mold apparatus or the injection nozzle is stained with resin, the operator It is necessary to clean the mold apparatus or the injection nozzle, and the maintenance of the injection molding machine is troublesome.

  An object of the present invention is to solve the problems of the conventional injection molding machine and to provide a molding machine operating system and a molding machine operating method capable of easily performing maintenance of the molding machine.

  For this purpose, in the molding machine operating system of the present invention, the injection device, the mold device having the first and second molds, and the mold clamping for performing mold closing, mold clamping and mold opening of the mold device. An image capturing apparatus that images a predetermined monitoring location in the injection device, the mold apparatus, and the mold clamping device, an image processing means that performs image processing based on an image of the monitoring location captured by the imaging device, Maintenance determination processing means for determining whether or not maintenance is required for the monitoring location based on the result of the image processing; and maintenance processing means for operating the maintenance operation device to perform maintenance on the monitoring location if maintenance is required. Have

  According to the present invention, in a molding machine operation system, an injection apparatus, a mold apparatus including first and second molds, and mold clamping for performing mold closing, mold clamping, and mold opening of the mold apparatus. An image capturing apparatus that images a predetermined monitoring location in the injection device, the mold apparatus, and the mold clamping device, an image processing means that performs image processing based on an image of the monitoring location captured by the imaging device, Maintenance determination processing means for determining whether or not maintenance is required for the monitoring location based on the result of the image processing; and maintenance processing means for operating the maintenance operation device to perform maintenance on the monitoring location if maintenance is required. Have

  In this case, image processing is performed based on the image of the monitoring location imaged by the imaging device, and it is determined whether maintenance is required for the monitoring location based on the result of the image processing. An operating device is activated to perform maintenance on the monitoring location.

  Therefore, it is not necessary for the operator to perform maintenance, so that the molding machine can be easily maintained.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this case, an injection molding machine as a molding machine will be described.

  FIG. 1 is a schematic diagram showing a first state of an injection molding machine in an embodiment of the present invention, FIG. 2 is a block diagram of a molding machine operating system in the embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a schematic diagram showing a second state of the injection molding machine according to the embodiment of the present invention.

  In the figure, 51 is an injection apparatus, 52 is a mold apparatus comprising a fixed mold 11 as a first mold and a movable mold 12 as a second mold, and 53 is arranged facing the injection apparatus 51. The mold clamping device provided, 54 is a plasticizing movement device that supports the injection device 51 so as to be able to advance and retreat, 55 is an ejector device, 60 is a mold thickness adjustment device that functions as a toggle adjustment device, fr1 is the injection device 51, and the mold A molding machine frame that supports the fastening device 53, the plasticizing moving device 54, and the like.

  The injection device 51 is attached to a heating cylinder 56 as a cylinder member, a screw 57 as an injection member disposed in the heating cylinder 56 so as to be rotatable and movable back and forth, and a front end of the heating cylinder 56. The injection nozzle 58, a hopper 59 disposed in the vicinity of the rear end of the heating cylinder 56, a screw shaft 61 formed to protrude from the rear end of the screw 57, and a load cell 70 as a load detection unit are connected. A movable support portion that includes a front support portion 71 serving as a first support portion and a rear support portion 72 serving as a second support portion and that is disposed so as to be movable forward and backward and rotatably supports the screw shaft 61. As a pressure plate 62, attached to the front support 71, and a pulley-belt type rotation transmission system (a drive pump as a drive element). A driven pulley as a driven element, and a timing belt as a transmission member stretched between the drive pulley and the driven pulley.) As a measuring drive unit connected to the screw shaft 61 via 65 A metering motor 66, attached to the molding machine frame fr1, is a pulley / belt type rotation transmission system (a driving pulley as a driving element, a driven pulley as a driven element, and a tension between a driving pulley and a driven pulley) And a timing belt as a transmission member.) An injection motor 69 as an injection drive unit connected to a ball screw 75 as a movement direction conversion unit via 68 is provided.

  The ball screw 75 functions as a motion direction conversion unit that converts rotational motion into linear motion, and is attached to the ball screw shaft 73 as the first conversion element connected to the rotation transmission system 68 and the rear support portion 72. And a ball nut 74 as a second conversion element screwed with the ball screw shaft 73.

  Further, the plasticizing movement device 54 includes a molding machine frame fr2, a plasticizing movement motor 77 as a plasticizing movement driving unit attached to the molding machine frame fr2, and a longitudinal direction of the molding machine frame fr2. The guide 78 that guides the front support portion 71 and the rear support portion 72 and the molding machine frame fr2 are rotatably disposed, and are rotated by driving the plasticizing movement motor 77. A ball screw shaft 81 as one conversion element, a ball nut 82 as a second conversion element screwed to the ball screw shaft 81, a bracket 83 attached to the rear end of the heating cylinder 56, and the ball nut 82 And a spring 84 or the like as an urging member disposed between the bracket 83 and the bracket 83.

  Therefore, by driving the plasticizing movement motor 77, the injection device 51 can be advanced at a predetermined timing to bring the injection nozzle 58 into contact with the fixed mold 11 to perform nozzle touch. The ball screw shaft 81 and the ball nut 82 constitute a ball screw 86, and the ball screw 86 functions as a motion direction conversion unit that converts rotational motion into linear motion.

  The mold clamping device 53 includes a fixed platen 91 as a first fixing member attached to the molding machine frame fr1, a toggle support 92 as a second fixing member, and a space between the fixed platen 91 and the toggle support 92. A movable platen 94 as a movable member disposed so as to face the tie bar 93 and the fixed platen 91 installed on the tie bar 93 and to be movable forward and backward along the tie bar 93, and disposed between the movable platen 94 and the toggle support 92. Toggle mechanism 95 provided, mold clamping motor 96 as a mold clamping drive unit, and pulley-belt type rotation for transmitting rotation generated by driving the mold clamping motor 96 to the toggle mechanism 95 Transmission system (as a driving pulley as a driving element, a driven pulley as a driven element, and a transmission member stretched between the driving pulley and the driven pulley) Consisting timing belt.) 97, a ball screw 98 as a motion direction converting portion which is connected to the rotation transmission system 97 includes a crosshead 99 or the like as a moving member connected to the ball screw 98. The fixed mold 11 and the movable mold 12 are attached to the fixed platen 91 and the movable platen 94 so as to face each other.

  The ball screw 98 functions as a motion direction conversion unit that converts rotational motion into linear motion, and is attached to a ball screw shaft 101 as a first conversion element connected to the rotation transmission system 97, and a crosshead 99, A ball nut 102 is provided as a second conversion element screwed into the ball screw shaft 101.

  The toggle mechanism 95 is configured to swing with respect to a toggle lever 105 that is swingably supported with respect to the cross head 99, a toggle lever 106 that is swingably supported with respect to the toggle support 92, and a movable platen 94. A toggle arm 107 that is movably supported is provided, and the toggle levers 105 and 106 and between the toggle lever 106 and the toggle arm 107 are linked.

  The toggle mechanism 95 advances and retracts the movable platen 94 along the tie bar 93 by advancing and retracting the crosshead 99 between the toggle support 92 and the movable platen 94 by the mold clamping motor 96, and the movable mold 12 is fixed. The mold 11 is brought into contact with and separated from the mold 11 to perform mold closing, mold clamping, and mold opening.

  Further, the ejector device 55 is disposed on the rear end surface of the movable platen 94, and a cross head 111 as a moving member disposed so as to be movable back and forth with respect to the movable platen 94, and a projecting motor as a projecting drive unit. 112, a ball screw shaft 113 as a first conversion element that is rotatably arranged with respect to the cross head 111, a second screw attached to the cross head 111 and screwed to the ball screw shaft 113; A pulley-belt type rotation transmission system (a driving pulley as a driving element, a driven element as a driven element) that transmits the rotation generated by driving the ball nut 114 as a conversion element and the protruding motor 112 to the ball screw shaft 113 Driven pulley, and a timing belt as a transmission member stretched between the driving pulley and the driven pulley That.) 116, and an ejector rod and ejector pins (not shown) or the like is caused to advance and retreat along with the advance and retreat of the crosshead 111.

  Therefore, by driving the protruding motor 112, the molded product remaining in the movable mold 12 when the mold is opened can be ejected. A ball screw 115 is constituted by the ball screw shaft 113 and the ball nut 114, and the ball screw 115 functions as a motion direction conversion unit that converts a rotational motion into a straight motion.

  The mold thickness adjusting device 60 is screwed into a threaded portion formed at the rear end of each tie bar 93, and serves as an adjustment nut 121 as a toggle adjusting member and as a mold thickness adjusting member, and a toggle adjusting member. And a die thickness motor 122 as a die thickness adjusting drive unit, a timing belt 123 as a transmission member for transmitting rotation generated by driving the die thickness motor 122 to each adjusting nut 121, and the like. . Therefore, for example, when the mold apparatus 52 is replaced, the mold thickness adjustment can be performed by driving the mold thickness motor 122 so that the toggle support 92 is moved back and forth with respect to the fixed platen 91.

  In the injection device 51 configured as described above, when the plasticizing movement motor 77 is driven, the rotation of the plasticizing movement motor 77 is transmitted to the ball screw shaft 81 and the ball nut 82 is moved forward and backward. Then, the thrust of the ball nut 82 is transmitted to the bracket 83 via the spring 84, and the injection device 51 is advanced and retracted.

  Further, in the weighing process, when the weighing motor 66 is driven, the rotation is transmitted to the screw shaft 61 via the rotation transmission system 65, and the screw 57 is rotated, the molding material supplied from the hopper 59 is not shown. Is heated and melted in the heating cylinder 56, moved forward, and collected in front of the screw 57. Along with this, the screw 57 is retracted to a predetermined position.

  In the injection process, the injection nozzle 58 is pressed against the fixed mold 11, the injection motor 69 is driven, and the ball screw shaft 73 is rotated via the rotation transmission system 68. At this time, the load cell 70 moves with the rotation of the ball screw shaft 73 and advances the screw 57, so that the resin stored in front of the screw 57 is injected from the injection nozzle 58 and formed in the fixed mold 11. A cavity space formed between the fixed mold 11 and the movable mold 12 is filled through the runner. The reaction force at that time is received by the load cell 70 and detected as a shooting output.

  In the mold clamping device 53 and the ejector device 55 configured as described above, when the mold clamping motor 96 is driven, the rotation of the mold clamping motor 96 is transmitted to the ball screw shaft 101 via the rotation transmission system 97, and the ball The nut 102 is advanced and retracted, and the crosshead 99 is also advanced and retracted. As the cross head 99 advances, the toggle mechanism 95 is extended, the movable platen 94 is advanced to close the mold, and the movable mold 12 is brought into contact with the fixed mold 11. Subsequently, when the mold clamping motor 96 is further driven, a mold clamping force is generated in the toggle mechanism 95, and the movable mold 12 is pressed against the fixed mold 11 by the mold clamping force. A cavity space is formed between the mold 12. Further, when the toggle mechanism 95 is bent along with the retraction of the cross head 99, the movable platen 94 is retracted and the mold is opened.

  Subsequently, the protrusion motor 112 is driven, and the rotation generated by driving the protrusion motor 112 is transmitted to the ball screw shaft 113 via the rotation transmission system 116, and the crosshead 111 is moved forward and backward. The ejector rod is also advanced and retracted. As the mold is opened, when the cross motor 111 is advanced by driving the protruding motor 112, the ejector pin is advanced, and the molded product is ejected.

  In the mold thickness adjusting device 60 having the above-described configuration, when the mold thickness motor 122 is driven, the rotation of the mold thickness motor 122 is transmitted to each adjustment nut 121 via the timing belt 123. As it is rotated, the tie bar 93 is advanced and retracted, and the toggle support 92 is advanced and retracted. As a result, the mold thickness is adjusted, and the reference position of the toggle mechanism 95 is adjusted.

  By the way, for example, if the resin adheres to the periphery of the injection nozzle 58 as the molding is repeated, the contact between the injection nozzle 58 and the fixed platen 91 is reduced when the nozzle touch is performed, and the injection nozzle 58. And the fixed platen 91 not only leaks resin, but also the cavity space cannot be filled with a sufficient amount of resin, and the quality of the molded product is deteriorated.

  Therefore, in the present embodiment, the injection nozzle 58 is a first monitoring location in the injection molding machine, and in order to monitor the injection nozzle 58, the camera 138 and the first imaging device are used. A nozzle cleaning device 131 as a maintenance operation device is provided, and the camera 138 is provided to face the injection nozzle 58 and photographs the injection nozzle 58. The nozzle cleaning device 131 rotates a brush 152 as a cleaning member disposed to face the nozzle opening of the injection nozzle 58, a moving mechanism (robot mechanism) 153 for moving the brush 152, and the brush 152. For example, a cleaning motor (not shown) as a driving unit for cleaning is provided. Therefore, the injection nozzle 58 is monitored by the camera 138 with the injection nozzle 58 as a monitoring target, and when the resin adheres around the injection nozzle 58, the brush 152 is rotated to clean the periphery of the injection nozzle 58, and the resin is removed. Try to remove. Normally, the brush 152 is placed at a predetermined retracted position, moved by the moving mechanism 153, and placed at the operating position.

  Further, for example, when the mold opening is performed, as described above, the ejector pin is advanced, the molded product is ejected, and then the unloader 161 is moved along the rail 162 as shown in FIG. Then, it is moved from the retracted position to the operating position facing the cavity space, and is operated to take out the molded product, but if the molded product cannot be reliably ejected, the molded product remains in the mold apparatus 52. End up. Usually, as the mold is opened, the runner portion made of the resin piece solidified in the runner is separated from the fixed mold 11 as a part of the molded product. When an external force is applied to the runner, the runner portion may break and remain in the fixed mold 11.

  Therefore, the mold device 52 is set as a second monitoring location, and a camera 139 as a second imaging device and a molded product extraction device 132 as a second maintenance operation device are disposed, and the camera 139 is a mold. The mold device 52 is photographed by being disposed so as to face the device 52. The molded product extraction device 132 guides the pickup 165 as an extraction member disposed facing the fixed mold 11, a moving mechanism (robot mechanism) 168 for moving the pickup 165, and the moving mechanism 168. Rail 169 etc. are provided. Therefore, the mold apparatus 52 is monitored by the camera 139 with the mold apparatus 52 being monitored, and when the molded product remains in the mold apparatus 52, the pickup 165 is operated to extract the molded product. The pickup 165 includes a thermocouple as a heating element at the tip, supplies a current to the thermocouple for a predetermined time, advances toward the runner, temporarily heats and melts the runner, When solidified, the pickup 165 and the runner are integrated. Therefore, when the pickup 165 is moved backward, the runner portion can be extracted from the runner. Normally, the pickup 165 is placed at a predetermined retracted position, moved by the moving mechanism 168, and placed at the operating position.

  Next, the molding machine operation system will be described.

  In the figure, 220 is a molding machine operation system, 222 is a main control unit as a management device for managing the injection molding machine, Fi is a control unit of the injection molding machine, and 211 is a network connecting the main control unit 222 and the injection molding machine. It is. In the present embodiment, the main control unit 222 and the control unit Fi of one injection molding machine are connected, but the main control unit 222 and a plurality of injection molding machines are connected. Can do.

  The main control unit 222 includes a CPU 224 as an arithmetic device, a RAM 225 used as a working memory when the CPU 224 performs various arithmetic processes, a ROM 226 in which various data are recorded in addition to a control program, It is connected to an operation unit 212 such as an operation panel and a keyboard, and a display unit 213 such as a CRT or a liquid crystal screen. The control unit Fi includes a CPU 231 as an arithmetic unit, a RAM 232 used as a working memory when the CPU 231 performs various arithmetic processes, a ROM 233 in which various data are recorded in addition to a control program. And a database (DB) 234 for recording data acquired by operating the injection molding machine, an operation unit 235 such as an operation panel and a keyboard, a display unit 236 such as a CRT and a liquid crystal screen, and the camera 138, 139.

  The cameras 138 and 139 constantly shoot the injection nozzle 58 and the mold device 52, respectively, and send image data of the shot injection nozzle 58 and the mold device 52, that is, image data, to the CPU 231. The transmission processing means of the CPU 231 performs transmission processing, receives the image data, compresses the image data as necessary, and constantly transmits it to the main control unit 222.

  In the main control unit 222, an image processing unit (processing unit) (not shown) of the CPU 224 performs image processing, and receives image data, processes the image data, and an information recording processing unit (processing unit) (not shown) of the CPU 224 Information recording processing is performed, and data representing the result of image processing is recorded in the ROM 226. In this case, image data is recorded in the ROM 226 by a preset data amount, and old image data is sequentially deleted.

  In the present embodiment, image processing and information recording processing are performed by the CPU 224, but can be performed by the CPU 231 in the control unit Fi.

  The molding machine control system 220, the CPUs 224, 231 and the like can function as a computer based on various programs, data, and the like. Further, the recording device is configured by the database 234, the RAMs 225, 232, the ROMs 226, 233, and the like. An MPU or the like can be used instead of the CPUs 224 and 231 as the arithmetic unit.

  Subsequently, the operation of the molding machine operation system having the above-described configuration will be described.

  First, in the main control unit 222, an abnormal stop determination processing unit (processing unit) (not shown) of the CPU 224 performs an abnormal stop determination process, reads a state signal indicating the state of the injection molding machine transmitted from the control unit Fi, It is determined whether an abnormality such as a molded product remaining in the mold apparatus 52 has occurred and an abnormal stop has occurred in the injection molding machine. When an abnormal stop occurs, an injection molding machine instruction processing unit (processing unit) (not shown) of the CPU 224 performs an injection molding machine instruction process and transmits an instruction signal for confirming the state of the injection molding machine to the control unit Fi.

  In the control unit Fi, a temperature control processing unit (processing unit) (not shown) of the CPU 231 performs a temperature control process so that the temperature of the resin in the heating cylinder 56 does not become excessively high due to an abnormal stop of the injection molding machine. In addition, the temperature in the heating cylinder 56, that is, the temperature of the resin is lowered. Subsequently, a protrusion processing unit (processing unit) (not shown) of the CPU 231 performs a protrusion process, and operates the ejector device 55 again to perform protrusion, and an extraction processing unit (processing unit) (not shown) of the CPU 231 performs the extraction process. Then, the take-out machine 161 is operated again to take out the molded product.

  Meanwhile, an information acquisition processing unit (processing unit) (not shown) of the CPU 231 performs an information acquisition process, calculates the motor torque of the protrusion motor 112 as the protrusion process and the extraction process are performed, and extracts the unloader. The stroke when operating 161 is read, and the motor torque of the ejecting motor 112 is sent to the main control unit 222 as the physical quantity in the ejecting process as the physical quantity in the ejecting process.

  Subsequently, in the main control unit 222, a maintenance determination processing unit (processing unit) as a residual determination processing unit (processing unit) (not shown) of the database 234 performs a maintenance determination process as a residual determination process, and displays the result of image processing. Representing data is read from the ROM 226, and based on the result of image processing, whether or not the mold apparatus 52 needs to be maintained is determined based on whether or not a molded product remains in the mold apparatus 52. Then, when the molded product remains in the mold apparatus 52, the maintenance determination processing unit determines that maintenance is necessary for the mold apparatus 52, and the molded product does not remain in the mold apparatus 52. In this case, it is determined that the mold apparatus 52 does not require maintenance.

  The maintenance determination processing unit also determines whether or not the motor torque of the protruding motor 112 is greater than a threshold value, or whether or not the stroke of the unloader 161 is greater than the threshold value, and the determination result and the result of the image processing. Based on the above, it can be determined whether or not the mold apparatus 52 requires maintenance. For example, the first condition is that the motor torque is larger than the threshold value, and the second condition is that the stroke of the unloader 161 is larger than the threshold value, and the molded product remains in the mold apparatus 52 from the result of the image processing. As a third condition, when all of the first to third conditions are satisfied, it is determined that maintenance is required for the mold apparatus 52, or at least when the third condition is satisfied It can be determined that the mold apparatus 52 needs maintenance.

  When it is determined that maintenance is not required for the mold apparatus 52, the main control unit 222 causes the injection molding machine instruction processing means to send an instruction signal for starting operation in the injection molding machine to the control unit Fi. Send.

  When the instruction signal is received, in the control unit Fi, the temperature control processing unit raises the temperature of the resin to melt the resin, and then the automatic purge processing unit (processing unit) (not shown) of the database 234 is obtained. Performs an automatic purge process, and the resin in the heating cylinder 56 is discharged from the injection nozzle 58 and purged. Therefore, while the injection molding machine is abnormally stopped, the resin accumulated in the heating cylinder 56 and burned (resin burn) can be discharged.

  Then, automatic nozzle cleaning processing means (processing unit) (not shown) of the database 234 performs automatic nozzle cleaning processing and operates the nozzle cleaning device 131 to clean the injection nozzle 58. Therefore, the resin discharged from the injection nozzle 58 and adhered to the periphery of the injection nozzle 58 in the automatic purge process can be removed.

  Subsequently, a molding processing means (processing unit) (not shown) of the database 234 performs a molding process and starts automatic molding.

  On the other hand, when the molded product remains in the mold apparatus 52, in the main control unit 222, the injection molding machine instruction processing means sends an instruction signal for extracting the molded product in the injection molding machine to the control unit Fi. Send.

  When the instruction signal is received, after the extraction processing means (processing unit) (not shown) of the database 234 performs the extraction processing, operates the molded product extraction device 132, and advances the pickup 165 in the control unit Fi. Then, the tip of the pickup 165 is heated to melt a part of the runner, and then the pickup 165 is cooled to solidify a part of the runner. Subsequently, the pickup 165 is moved backward, and the runner portion is extracted.

  In this case, the time during which a part of the runner is melted varies depending on the type of resin. Therefore, the time for heating the tip of the pickup 165 is changed depending on the type of resin.

  Subsequently, as described above, the maintenance determination processing unit reads data representing the result of the image processing from the ROM 226, and determines whether or not the mold apparatus 52 needs to be maintained based on the result of the image processing. Judgment is made based on whether or not the molded product remains in the device 52.

  When no molded product remains in the mold apparatus 52, as described above, in the main control unit 222, the injection molding machine instruction processing means causes the control unit Fi to start operation in the injection molding machine. The instruction signal is transmitted. When the molded product remains in the mold apparatus 52, the injection molding machine instruction processing means instructs the control unit Fi to extract the molded product in the injection molding machine until the automatic sampling frequency reaches a threshold value. Send a signal. When the automatic sampling number reaches the threshold, in the main control unit 222, an abnormality determination processing unit (processing unit) (not shown) of the CPU 224 performs abnormality determination processing, determines that an automatic sampling abnormality has occurred, and notifies the CPU 224 (not shown). The processing means (processing unit) performs notification processing and notifies the operator that an automatic sampling abnormality has occurred.

  As described above, in the present embodiment, it is determined whether or not a molded product remains in the mold apparatus 52 based on the image taken by the camera 139, and the molded product remains in the mold apparatus 52. In this case, the molded product can be automatically extracted by the molded product extraction device 132, and the operator need not extract the molded product.

  In addition, the nozzle cleaning device 131 can automatically clean the injection nozzle 58, eliminating the need for the operator to clean.

  Therefore, maintenance of the injection molding machine can be easily performed.

  In the present embodiment, the injection nozzle 58 is automatically cleaned, but based on the image taken by the camera 138, it is determined whether the injection nozzle 58 is dirty with resin, When the injection nozzle 58 is dirty with resin, the injection nozzle 58 can be automatically cleaned. Further, based on the image taken by the camera 138, it is determined whether or not the mold device 52 is soiled with resin. When the mold device 52 is soiled with resin, the mold device 52 is automatically cleaned. can do.

Next, a flowchart will be described.
Step S1 Wait for an abnormal stop to occur, and if an abnormal stop occurs, proceed to Step S2.
Step S2: The temperature of the resin is lowered.
Step S3 Protruding and taking out again.
Step S4: Determine whether or not the molded product remains in the mold apparatus 52. If the molded product remains in the mold apparatus 52, the process proceeds to step S9, and if not, the process proceeds to step S5.
Step S5: Increase the temperature of the resin.
Step S6 An automatic purge process is performed.
Step S7 An automatic nozzle cleaning process is performed.
Step S8: Automatic molding is started and the process is terminated.
Step S9: The pickup 165 is heated.
Step S10: The pickup 165 is positioned.
Step S11 The pickup 165 is inserted into the mold apparatus 52.
Step S12: The pickup 165 is cooled.
Step S13 The molded product is extracted.
Step S14: It is determined whether or not the molded product remains in the mold apparatus 52. If the molded product remains in the mold apparatus 52, the process proceeds to step S15. If not, the process returns to step S5.
Step S15: It is determined whether the number of automatic extractions is within a threshold value. If the automatic sampling number is within the threshold, the process returns to step S9, and if the automatic sampling number exceeds the threshold, the process proceeds to step S16.
Step S16: It is determined that an automatic sampling abnormality has occurred, and the process is terminated.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

It is the schematic which shows the 1st state of the injection molding machine in embodiment of this invention. It is a block diagram of a molding machine operation system in an embodiment of the present invention. It is a flowchart which shows operation | movement of the molding machine operating device in embodiment of this invention. It is the schematic which shows the 2nd state of the injection molding machine in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Fixed mold 12 Movable mold 51 Injection apparatus 52 Mold apparatus 53 Clamping apparatus 58 Injection nozzle 131 Nozzle cleaning apparatus 132 Molded product extraction apparatus 138, 139 Camera 220 Molding machine operation system

Claims (7)

(A) an injection device;
(B) a mold apparatus including first and second molds;
(C) a mold clamping device for performing mold closing, mold clamping and mold opening of the mold device;
(D) an imaging device for photographing a predetermined monitoring location in the injection device, mold device, and mold clamping device;
(E) image processing means for performing image processing based on an image of a monitoring location imaged by the imaging device;
(F) maintenance determination processing means for determining whether or not maintenance is required for the monitoring location based on the result of the image processing;
(G) A molding machine operating system comprising maintenance processing means for operating the maintenance operation device to perform maintenance on the monitored portion when maintenance is required.   The molding machine operation system according to claim 1, wherein the maintenance determination processing unit reads a predetermined physical quantity at a monitoring location, and determines whether maintenance is required for the monitoring location based on the physical quantity and the result of the image processing.   The molding machine monitoring system according to claim 1, wherein the monitoring location is an injection nozzle.   The molding machine monitoring system according to claim 1, wherein the monitoring location is a mold apparatus.   The molding machine monitoring system according to claim 3, wherein the maintenance operation device is a nozzle cleaning device.   The molding machine monitoring system according to claim 4, wherein the maintenance operation device is a molded product sampling device. In a molding machine operating method of a molding machine having an injection device, a mold device including first and second molds, and a mold clamping device that performs mold closing, mold clamping, and mold opening of the mold device,
(A) Photographing predetermined monitoring points in the injection device, mold device and mold clamping device;
(B) performing image processing based on the image of the monitored part imaged by the imaging device;
(C) Based on the result of the image processing, it is determined whether maintenance is necessary for the monitoring location;
(D) A method for operating a molding machine, characterized in that when maintenance is required, a maintenance operation device is operated to perform maintenance on the monitored portion.

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