JP2008155974A - Filling machine control device and filling machine control method - Google Patents

Abstract

A packaging container is not unnecessarily discarded, and the cost of the packaging container can be reduced.
A sensor, learning interval calculation processing means for calculating a learning interval until receiving the next input signal after receiving the sensor output as an input signal, and generating a learning output upon completion of timing based on the learning interval Learning output generation processing means, delay determination processing means for determining whether or not an input signal has been received after the learning output has been generated, and latest input timing having received the latest input signal, learning that has received the learning output Timing determination processing means for determining whether or not the input timing is earlier, and detection output generation processing means for generating a detection output based on each determination. Since the detection output is generated based on each determination, the position of the packaging material can be reliably recognized.
[Selection] Figure 1

Description

  The present invention relates to a filling machine control device and a filling machine control method.

  Conventionally, in a packaging container manufacturing apparatus for manufacturing a packaging container such as a brick type containing liquid food such as tea, juice, soup and alcoholic beverage, for example, liquid food, a web-shaped packaging material is used. A packaging container is formed by sealing a predetermined portion of the material by a method such as heat sealing or ultrasonic sealing. That is, the wrapping material is previously formed with creases at predetermined locations, wound in a reel shape, and set in a filling machine. In the filling machine, the packaging material is drawn out into a tube shape, pressed against the strip tape from the inside of the packaging material and sealed in the vertical direction by a vertical sealing device, and then filled with liquid food, It is sealed and cut in the horizontal direction by a horizontal sealing device at intervals, and becomes a pillow-shaped prototype container. Further, the packaging container is completed by forming the original container into a predetermined shape.

  In the packaging container, the packaging container can be opened by peeling off the pull tab when the liquid food is poured out. Therefore, in the manufacturing process of the packaging container, after a punch hole is formed in the packaging material, a patch film is applied from the back side of the packaging material (inside in the packaging container), and a pull tab is attached from the outside. (For example, refer to Patent Document 1).

By the way, in the filling machine, the position of the packaging material is recognized, and various controls for the packaging material are performed according to the recognized position. For this purpose, various sensors detect register marks printed on the packaging material, punch holes formed on the packaging material, patch films stuck on the packaging material, etc., and generate sensor outputs, , The filling machine control section reads the sensor output sent from each sensor and performs the various controls based on the sensor output.
JP-A-6-191893

  However, in the conventional filling machine control unit, it is caused by distortion (distortion) of the packaging material, variation in the surface finish, adhesion of foreign matter to the packaging material, etc. Holes, patch films, etc. cannot be reliably detected, and sensor output may not be generated. In that case, the filling machine control unit cannot recognize the position of the packaging material.

  Therefore, the number of times the sensor output could not be read is counted, and when the count value exceeds a predetermined value, an alarm is issued, the filling machine is stopped, and the packaging container is discarded regardless of whether it is good or bad. . As a result, the cost of the packaging container is increased.

  The present invention solves the problems of the conventional filling machine control unit, prevents the packaging container from being discarded unnecessarily, and can reduce the cost of the packaging container and the filling machine control method. The purpose is to provide.

  Therefore, in the filling machine control device of the present invention, a sensor that periodically generates a sensor output, receives the sensor output as an input signal, performs time measurement, and calculates a learning interval until the next input signal is received. A learning interval calculation processing means, a learning output generation processing means for measuring time based on the learning interval, and generating a learning output upon completion of timing, and whether an input signal has been received after the learning output is generated The timing to determine whether the latest input timing is earlier than the learning input timing, the delay determination processing means to determine the timing, the timing that received the latest input signal is the latest input timing, the timing that received the learning output is the learning input timing Determination processing means, whether the latest input timing is earlier than the learning input timing, and a learning output is generated. And a detection output generation processing means for generating a detection output based on whether receiving the input signal if the decision after allowed was.

  According to the present invention, in the filling machine control device, a sensor that periodically generates a sensor output, and the sensor output is received as an input signal, the time is measured, and a learning interval until the next input signal is received is calculated. A learning interval calculation processing means, a learning output generation processing means for measuring time based on the learning interval, and generating a learning output upon completion of timing, and whether an input signal has been received after the learning output is generated The timing to determine whether the latest input timing is earlier than the learning input timing, the delay determination processing means to determine the timing, the timing that received the latest input signal is the latest input timing, the timing that received the learning output is the learning input timing Judgment processing means, whether or not the latest input timing is earlier than the learning input timing, and a learning output is generated And a detection output generation processing means for generating a detection output based on the determination whether receiving the input signal after it is.

  In this case, since the detection output is generated based on the determination whether the latest input timing is earlier than the learning input timing and whether the input signal is received after the learning output is generated, the position of the packaging material is changed. Can be recognized reliably.

  Therefore, the packaging container is not discarded unnecessarily, and the cost of the packaging container can be reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a conceptual diagram showing a filling machine of the packaging container manufacturing apparatus in the embodiment of the present invention.

  In the figure, reference numeral 10 denotes a web-like packaging material. The packaging material 10 is accommodated in a cassette 32 in the state of a reel 31, and is set in a magazine area (not shown) of the filling machine, that is, a delivery unit via the cassette 32. Is done. The packaging material 10 is composed of a paper base material and a flexible laminate in which both sides of the paper base material are coated with a film of a resin, for example, a polyethylene resin. A barrier layer made of an aluminum foil, a gas barrier resin, or the like is formed between the film and a portion corresponding to the surface of the packaging container is preliminarily printed.

  The packaging material 10 fed out from the delivery section by a feeding machine (not shown) is intermittently conveyed in the direction of arrow A by a feeding device (not shown) as a conveying means, and is stripped via a bending roller r1, a damper roller r2, and the like. The strip tape 34 is stuck along one edge of the packaging material 10 by the strip tape sticking device 33.

  Subsequently, the packaging material 10 is sent to the sheet tensioner 35 via the bending rollers r3 and r4, and then sent to the bending roller r5. In the meantime, punching is performed by a punching device 37 to form a punch hole at a predetermined location of the packaging material 10 to be conveyed, and a pull tab is attached from the outside of the packaging material 10 to the packaging material 10 by the sticking device 38. A patch film is applied from the inside of the punch hole, and the punch hole is sealed from the outside and the inside. For this purpose, a supply device 39 is arranged between the punch device 37 and the sticking device 38, in which the pull tab is supplied from above the packaging material 10 and the patch film is supplied from below the packaging material 10. Is done. An inner film is constituted by the strip tape, patch film or the like.

  Subsequently, the packaging material 10 is sent to the sterilization tank 61 through the paper tensioner 43 and bending rollers r6 and r7, and is immersed in a sterilization liquid such as hydrogen peroxide in the sterilization tank 61 to be sterilized. Reference numeral 62 denotes a bottom tray for storing the sterilizing liquid.

  Thereafter, the packaging material 10 is sent to the air knife 45 via the calendar roller r8, dried by the air knife 45, and then sent to the upper forming ring 48 via the bending roller r9, the crease roller r10 and the bending roller r11. . The packaging material 10 is gradually deformed into a tube shape by forming rollers such as the upper molding ring 48, the movable molding ring 49, the split molding ring 50, the lower molding ring 51, and the like, and the longitudinal direction by the vertical sealing device 53. The wrapping material 10 is filled with a fluid food, for example, a liquid food supplied through the filling pipe 52.

  Subsequently, the packaging material 10 is guided by the tube support roller r12 and sent to the sealing / cutting portion p1, and the sealing / cutting portion p1 is preliminarily molded into a pillow shape by a folding flap (not shown), It is sandwiched by a sealing / cutting device (not shown), sealed laterally by a horizontal sealing device at predetermined intervals, and cut by a cutter to form a pillow-shaped prototype container 36. The prototype container 36 is molded into a predetermined shape by a final molding and conveying apparatus (not shown), and becomes a packaging container that contains a certain amount of liquid food.

  By the way, in the filling machine of the said structure, the position of the packaging material 10 is detected in the preset location, and various control with respect to the packaging material 10 is performed according to the detected position. For this purpose, various sensors detect register marks printed on the packaging material 10, punch holes formed on the packaging material 10, patch films attached to the packaging material 10, etc., and generate sensor outputs. When sent to the filling machine control section as the control section, the filling machine control section reads the sensor output sent from each sensor and performs the various controls based on the sensor output.

  That is, the filling machine controller first controls the design collection, and in the control of the design collection, the first sensor (not shown) detects the register mark printed on the packaging material 10 and fills the sensor output. To the machine controller. The sealing / cutting processing means of the filling machine controller performs sealing / cutting processing, recognizes the position of the packaging material 10 based on the sensor output, and sets the operation amount of the folding flap in accordance with the position of the packaging material 10 Then, the position for sealing the packaging material 10 in the lateral direction and the position for cutting the packaging material 10 are controlled.

  In addition, the filling machine control unit secondly performs pull tab sticking control, and in the pull tab sticking control, a second sensor (not shown) detects the register mark, and outputs the sensor output to the filling machine control part. Send to. The pull tab sticking processing means of the filling machine control unit performs pull tab sticking processing, recognizes the position of the packaging material 10 based on the sensor output, and corresponds to the position of the packaging material 10 to a predetermined portion of the packaging material 10. A punch hole is formed in the plate, and a patch film and a pull tab are attached.

  Thirdly, the filling machine control unit performs ASU control. In the ASU control, a third sensor (not shown) detects the register mark and sends a sensor output to the filling machine control unit. The packaging material connection processing means of the filling machine controller performs packaging material connection processing, recognizes the position of the packaging material 10 based on the sensor output, and associates the packaging material 10 of the old reel 31 with the position of the packaging material 10. And the packaging material 10 of the new reel 31 are connected.

  The filling machine control unit fourthly performs PHD control. In the PHD control, the fourth sensor detects the position of the punch hole formed in the packaging material 10, and outputs the sensor output to the filling machine control unit. Send to. The pinhole detection processing means of the filling machine controller performs pinhole detection processing, recognizes the position of the packaging material 10 based on the sensor output, and is formed on the patch film in correspondence with the position of the packaging material 10. Detect pinholes.

  Furthermore, the filling machine control unit performs PPD control, and in the PPD control, the fifth sensor detects the position of the patch film adhered to the packaging material 10, and controls the sensor output to the filling machine. Send to department. The patch film detection processing means of the filling machine controller performs patch film detection processing, recognizes the position of the packaging material 10 based on the sensor output, and detects the displacement of the patch film corresponding to the position of the packaging material 10. .

  By the way, due to distortion of the packaging material 10, variation in surface finish, adhesion of foreign matter to the packaging material 10, etc., the register marks, punch holes, patch films, etc. are surely secured in each of the first to fifth sensors. May not be detected, and sensor output may not be generated. Accordingly, when the filling machine control unit cannot recognize the position of the packaging material 10, the packaging container is discarded regardless of whether the packaging material 10 is good or not, and the cost of the packaging container increases.

  Therefore, in the present embodiment, even when no sensor output is generated in a predetermined sensor, the filling machine control unit generates a pseudo sensor output (hereinafter referred to as “internal output”) in place of the sensor output, thereby generating an internal. The position of the packaging material 10 is recognized based on the output.

  Next, the operation of the filling machine controller when the sensor outputs of the first to fifth sensors are not generated will be described. In this case, since the operation of the filling machine control device when the sensor outputs of the first to fifth sensors are not generated is the same, the filling machine control device when the sensor output of the first sensor is not generated is the same. Only the operation will be described.

  FIG. 1 is a control block diagram of the filling machine control device in the embodiment of the present invention, and FIG. 3 is a flowchart showing the operation of the filling machine control device in the embodiment of the present invention.

  In the figure, 70 is a filling machine control device, 11 is a filling machine control section as a main control section, 12 is a first sensor, 13 is an input / output control section as a sub-control section, and 14 is a first timer for timekeeping. Learning timer, 15 is a learning interval output timer as a second timing timer, 16 is an output interval monitoring timer as a monitoring timer, and 17 is an alarm device as a notification unit.

  When the first sensor 12 is functioning normally and there is no distortion of the packaging material 10, variation in the surface finish, adhesion of foreign matter to the packaging material 10, etc., the first sensor 12 A register mark printed on the material 10 is detected, a sensor output is periodically generated, and sent to the filling machine control unit 11 via the input / output control unit 13.

  Then, when the sensor output is sent, the first timing processing means as the learning interval calculation processing means (not shown) of the input / output control unit 13 performs the first timing processing as the learning interval calculation processing, and the sensor output is The generated cycle is calculated as a learning interval (learning value). For this purpose, the first timing processing means receives the sensor output as an input signal, and starts timing by the learning timer 14 at that timing. Subsequently, when receiving the next input signal, the first time measuring means reads the count value of the learning timer 14 and sets the count value as the learning interval.

  The first time measuring means starts again the time measurement by the learning timer 14 from zero (0). Therefore, the learning timer 14 is always operated regardless of whether an input signal is received.

  Then, a second timing processing unit (not shown) as a learning output generation processing unit (not shown) of the input / output control unit 13 performs a second timing processing as a learning output generation process, and is described above based on the learning interval. As described above, an internal output (learning output) is generated instead of the sensor output. For this purpose, the second timing processing means reads the learning interval, sets the learning interval as a time-up value in the learning interval output timer 15, and starts timing by the learning interval output timer 15. Then, when the learning interval output timer 15 counts the learning interval, the time is up, and the timing is finished, the second timing processing means generates the internal output.

  In this way, each time the first time measuring means receives an input signal, the learning time interval is calculated, and the second time measuring means generates an internal output based on the learning time interval.

  By the way, when the next input signal is sent from the first sensor 12 before the internal output is generated in the second timing processing, the first timing processing means uses the learning timer 14. Timekeeping is started again and the count value is calculated as the next learning interval. At this time, the second timekeeping processing means has not finished timekeeping by the learning interval output timer 15 for the previous learning interval. In this case, the second timing processing means reads the next learning interval and starts timing with the next learning interval as a time-up value. Therefore, an internal output based on the previous learning interval is not generated.

  When the next input signal is sent from the first sensor 12 at the same time as the internal output is generated in the second timing process, the first timing processing means uses the learning timer 14. The clocking is started again, and the count value is calculated as the next learning interval. At this time, the second timing processing unit ends the timing of the learning interval output timer 15 for the previous learning interval, so the internal output is The next learning interval is read, the next learning interval is set as a time-up value, and time counting is started.

  On the other hand, even if an internal output is generated in the second timing process, if the next input signal is not sent from the first sensor 12, a delay determination process (not shown) of the input / output control unit 13 is performed. The means performs a delay determination process and determines that the next input signal is not received from the first sensor 12.

  After that, when the next input signal is sent from the first sensor 12, the first time measuring means restarts the time measurement by the learning timer 14, calculates the count value as the next learning interval, The second timing processing means reads the next learning interval and starts timing with the next learning interval as a time-up value.

  At this time, an input signal recording processing unit (not shown) of the input / output control unit 13 performs an input signal recording process and records the input signal in a storage device (not shown).

  Subsequently, a timing determination processing unit (not shown) of the input / output control unit 13 performs timing determination processing, reads the timing at which the latest input signal is received as the latest input timing, and receives an internal output from the learning interval output timer 15. The timing is read as a learning input timing, and it is determined whether the latest input timing is the same as the learning input timing or earlier than the learning input timing.

  A detection output generation processing unit (not shown) of the input / output control unit 13 performs detection output generation processing. If the latest input timing is the same as the learning input timing or earlier than the learning input timing, the latest input signal is output. Is output (directly output) to the filling machine control unit 11 at the latest input timing as a detection output by the first sensor 12.

  Further, when the latest input timing is later than the learning input timing, the detection output generation processing means determines whether or not the input signal is recorded in the storage device, and when the input signal is recorded in the storage device, the sensor output The latest input signal is generated as a detection output by the first sensor 12 and output (direct output) to the filling machine control unit 11 at the latest input timing. On the other hand, when the input signal is not recorded in the storage device, the detection output generation processing means determines that the sensor output is not generated, and generates the latest internal output as the detection output by the first sensor 12. Then, it outputs (learning output) to the filling machine controller 11 at the learning input timing.

  The output interval monitoring processing means (not shown) of the input / output control unit 13 performs output interval monitoring processing and monitors the output interval. Therefore, the output interval monitoring processing means starts timing by the output interval monitoring timer 16 at the timing of generating the detection output, and the count value of the output interval monitoring timer 16 becomes larger than the threshold value. When the output interval monitoring timer 16 finishes timing, the notification processing means (not shown) of the input / output control unit 13 performs notification processing and rings the alarm device 17 so that the first sensor 12 is notified to the operator. It is informed that it is not functioning normally, or that the packaging material 10 is distorted, the surface finish is uneven, the foreign material adheres to the packaging material 10, and the like.

  When a new detection output is generated, the output interval monitoring processing means starts counting from zero again by the output interval monitoring timer 16. Therefore, the output interval monitoring timer 16 is always operated regardless of the presence or absence of the detection output.

  As described above, when the latest input timing is the same as the learning input timing or earlier than the learning input timing, the detection output is sent to the filling machine controller 11 at the latest input timing, and the latest input timing is learned. If it is later than the input timing and an input signal is input thereafter, it is generated for the filling machine control unit 11 at the latest input timing, and the latest input timing is later than the learning input timing. If no input signal is input thereafter, it is generated for the filling machine controller 11 at the learning input timing.

  Therefore, after the operation of the filling machine is started, even if the conveying speed of the packaging material 10 gradually increases in the filling machine, a detection output is generated corresponding to the change in the conveying speed, and the filling machine controller 11 Can be output.

  And even when the conveyance speed of the packaging material 10 is in a steady state, the first sensor 12 is delayed in detecting one or several register marks or cannot be searched. Based on the learning interval, the latest detection output at that time can be generated as a virtual detection output and output to the filling machine control unit 11.

  In this way, even if the sensor output may or may not be delayed in the first sensor 12, the latest input signal is generated as a detection output by the first sensor 12, and the filling machine control is performed. Is output to the unit 11. Therefore, the filling machine control unit 11 can reliably recognize the position of the packaging material 10.

  Further, since it is not necessary to stop the filling machine, the packaging container is not discarded unnecessarily regardless of whether it is good or bad. As a result, the cost of the packaging container can be reduced.

  In this embodiment, the learning input timing is set based on the immediately preceding learning interval, but the learning input timing can be set based on the immediately preceding learning intervals. In this case, the responsiveness in the input / output control unit 13 is lowered, but the variation in the learning input timing can be eliminated, the detection output can be generated stably and output to the filling machine control unit 11.

Next, a flowchart will be described.
Step S1: Wait for receiving an input signal.
Step S2: Delay determination processing is performed.
Step S3: Time is up at the previous learning interval and an internal output is sent.
Step S4: It is determined whether the latest input timing is simultaneous with the learning timing or earlier than the learning timing. If the latest input timing is the same as or earlier than the learning timing, the process proceeds to step S6. If the latest input timing is later than the learning timing, the process proceeds to step S5.
Step S5: Determine whether an input signal is recorded. If the input signal is recorded, the process proceeds to step S6. If not, the process proceeds to step S7.
Step S6: Output (direct output) at the latest input timing.
Step S7: Output (learning output) at learning input timing.
Step S8: It is determined whether or not the output interval monitoring timer 16 has expired. If the output interval monitoring timer 16 has expired, the process proceeds to step S8, and if not, the process returns.
Step S9: An alarm is generated and the process returns.

  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 a control block diagram of the filling machine control apparatus in embodiment of this invention. It is a conceptual diagram which shows the filling machine of the packaging container manufacturing apparatus in embodiment of this invention. It is a flowchart which shows operation | movement of the filling machine control apparatus in embodiment of this invention.

Explanation of symbols

12 First sensor 13 Input / output control unit 70 Filling machine control device

Claims (4)

(A) a sensor that periodically generates a sensor output;
(B) learning interval calculation processing means for receiving the sensor output as an input signal, measuring time, and calculating a learning interval until the next input signal is received;
(C) learning output generation processing means for measuring time based on the learning interval and generating learning output at the end of time counting;
(D) delay determination processing means for determining whether an input signal is received after the learning output is generated;
(E) timing determination processing means for determining whether the latest input timing is earlier than the learning input timing, the timing receiving the latest input signal as the latest input timing, the timing receiving the learning output as the learning input timing,
(F) detection output generation processing means for generating a detection output based on a determination whether the latest input timing is earlier than a learning input timing and whether an input signal is received after the learning output is generated; A filling machine control device comprising: (A) The learning interval calculation processing means measures time with a first timer,
(B) The filling machine control device according to claim 1, wherein the learning output generation processing means measures time by a second timer.   The detection output generation processing means outputs the detection output at the latest input timing when the latest input timing is the same as the learning input timing or earlier than the learning input timing, and when the input signal is received after the learning output is generated. The filling machine control device according to claim 1, wherein when a learning output is generated and no input signal is received, a detection output is generated at a learning input timing. (A) The periodically generated sensor output is received as an input signal, the time is measured, and a learning interval until the next input signal is received is calculated.
(B) Time is measured based on the learning interval, and a learning output is generated at the end of the time measurement,
(C) determine whether an input signal has been received after the learning output has been generated;
(D) The timing at which the latest input signal is received is the latest input timing, the timing at which the learning output is received is the learning input timing, and it is determined whether the latest input timing is earlier than the learning input timing,
(E) A filling machine that generates a detection output based on a determination as to whether the latest input timing is earlier than a learning input timing and a determination as to whether an input signal has been received after the learning output has been generated. Control method.

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