JP2007131331A - Bag-making packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce occurrences of failure in the movement of seal jaws by facilitating the operation of replacing the seal jaws of a bag-making packaging machine. <P>SOLUTION: The bag-making packaging machine 1 includes seal jaws 51 and 52, arm members 92a to 92d, a tag reader 22, and a setting block 20a. While making a bag by sealing a packaging material, the machine 1 fills the bag with an item or items. The seal jaws 51 and 52 have an IC tag 54 and seal the packaging material. Arm members 92a to 92d store the seal jaws 51 and 52 so that the seal jaws are replaceable. With the seal jaws 51 and 52 stored in the arm members 92a to 92d, the tag reader 22 reads identification information for identifying the seal jaws 51 and 52 from the IC tag. Based on the identification information read by the tag reader 22, the setting block 20a sets packaging operation conditions for the seal jaws 51 and 52. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bag making and packaging machine that fills an object to be packaged while sealing and packaging a packaging material.

  A vertical bag making and packaging machine exists as an apparatus for filling a bag with food and other objects to be packaged while manufacturing the bag.

  For example, a vertical pillow bag-wrapping machine forms a sheet-like film packaging material into a tube shape by a former and a tube, and seals the vertical edge of the tube-shaped bag overlapped by a vertical sealing mechanism ( Heat seal). And after filling the inside of the tube-shaped wrapping material from the tube into the bag and sealing it across the upper part of the bag and the lower part of the succeeding bag by the horizontal seal mechanism below the tube, the horizontal seal part Repeat cutting the center of with a cutter. That is, in the pillow bag making and packaging machine, as described above, the operations of manufacturing the bag and filling the bag into the package are continuously performed.

  As a lateral sealing mechanism of such a bag making and packaging machine, there are many mechanisms that heat and pressure-bond a tubular bag by pressing a pair of sealing members called seal jaws opposed to each other across a conveyance path of the tubular bag. It has been adopted.

  On the other hand, in such a bag making and packaging machine, since a film roll wound with a film having different materials, sizes, printing contents, etc. is used depending on the package, the film roll is exchanged depending on the package. At the same time, the operating conditions of the bag making and packaging machine need to be changed according to the newly replaced film roll. If a new film roll is used without changing the operating conditions of the bag making and packaging machine, the characters and patterns printed on the bag may be cut off halfway, the film meandering and sticking the seal There is a risk of defects.

Therefore, Patent Document 1 proposes a method of automatically changing the operation condition by attaching an identification medium for identifying the type of the film roll to the film roll.
JP 2004-155469 A

  However, the sealing jaw has a heating mechanism such as a heater and a cutting mechanism such as a cutter inside, and operates in a complex manner while interlocking with elements other than the sealing jaw such as a tube-like bag conveyed along the conveyance path. There is a tendency that the operation for changing the operating condition accompanying the replacement of the seal jaws becomes difficult. Therefore, when exchanging the seal jaws, it is particularly desirable that the operation for changing the operating conditions of the bag making and packaging machine be easy.

  An object of the present invention is to reduce the possibility that a malfunction occurs in the operation of the sealing jaw by facilitating the operation associated with the replacement of the sealing jaw in the bag making and packaging machine.

  The bag making and packaging machine according to the first aspect of the present invention includes a sealing jaw, a storage portion, a reading portion, and a setting portion, and fills an object to be packaged while sealing the packaging material and making a bag. The sealing jaw has an identification medium and seals the packaging material. The accommodating portion accommodates the seal jaw in a replaceable manner. The reading unit reads identification information for identifying the seal jaw from the identification medium in a state where the seal jaw is accommodated by the accommodation unit. The setting unit sets the packaging jaw operating condition based on the identification information read by the reading unit.

  In this bag making and packaging machine, seal jaws for sealing the packaging material are accommodated in the exchange by the accommodating portion, and identification information for identifying the seal jaws is read from the identification medium of the seal jaw by the reading portion. Based on the read identification information, the seal jaw currently accommodated is identified, and the setting operation automatically sets the seal jaw packaging operation condition corresponding to the seal jaw. Thereby, in this bag making packaging machine, it becomes possible to facilitate the operation accompanying replacement of the seal jaws, and it is possible to reduce the possibility of problems in the operation of the seal jaws.

  The identification information read from the identification medium may be information for identifying individual seal jaws, or information for identifying the type of seal jaws.

  A bag making and packaging machine according to a second invention is the bag making and packaging machine according to the first invention, further comprising a display unit. The display unit displays the packaging operation condition set by the setting unit.

  In this bag making and packaging machine, the sealing jaw packaging operation condition automatically set by the setting unit is displayed on the display unit. Thereby, the operator of this bag making packaging machine can confirm the packaging operation conditions automatically set by the bag making packaging machine.

  A bag making and packaging machine according to a third aspect of the present invention is the bag making and packaging machine according to the first or second aspect of the present invention, further comprising a diagnosis unit and a notification unit. The diagnosis unit diagnoses whether or not it is appropriate to operate the sealing jaw under the packaging operation condition set by the setting unit. When the diagnosis unit is diagnosed as inappropriate by the diagnosis unit, the notification unit notifies that fact.

  In this bag making and packaging machine, it is diagnosed whether or not there is a problem when the sealing jaw is operated under the packaging operation condition automatically set by the setting unit. For example, when a member that cannot be used in combination with the seal jaws currently accommodated is attached to the bag making and packaging machine, a problem occurs. In such a case, a warning is sounded or a warning screen is displayed via a notification unit such as a speaker or a display, so that the operator is notified of the malfunction. Thereby, in this bag making packaging machine, it can avoid operating a sealing jaw in the situation where a malfunction may arise.

  A bag making and packaging machine according to a fourth invention is the bag making and packaging machine according to any one of the first to third inventions, wherein the identification medium is an IC tag.

  In this bag making and packaging machine, an IC tag is attached to the seal jaw. Thereby, in this bag making packaging machine, the seal jaw currently accommodated can be identified.

  A bag making and packaging machine according to a fifth invention is the bag making and packaging machine according to any one of the first to third inventions, wherein the identification medium is a notch formed in a part of the seal jaw.

  In this bag making and packaging machine, a notch is formed in a part of the seal jaw. Thereby, in this bag making packaging machine, the seal jaw currently accommodated can be identified.

  A bag making and packaging machine according to a sixth invention is the bag making and packaging machine according to any one of the first to third inventions, wherein the identification medium is a dip switch.

  In this bag making and packaging machine, a dip switch is attached to the sealing jaw. Thereby, in this bag making packaging machine, the seal jaw currently accommodated can be identified.

  A bag making and packaging machine according to a seventh aspect of the present invention is the bag making and packaging machine according to any one of the first to sixth aspects, further comprising a storage unit. A memory | storage part memorize | stores the control parameter corresponding to each seal jaw about several seal jaws. The setting unit reads from the storage unit the control parameter stored in the storage unit that corresponds to the seal jaw identified by the identification information read by the reading unit, and sets the packaging operation condition.

  A list of control parameters for a plurality of sealing jaws is stored in the storage unit of the bag making and packaging machine. Then, a control parameter corresponding to the seal jaw currently accommodated is selected from the list of control parameters, and used for setting the packaging jaw operating condition. Thereby, in this bag making packaging machine, even when the seal jaw is replaced, the seal jaw can be operated under the packaging operation condition corresponding to the replaced seal jaw.

  A bag making and packaging machine according to an eighth invention is the bag making and packaging machine according to the seventh invention, wherein the seal jaw has a heater. The sealing jaw heats and seals a predetermined position of the packaging material with a heater. The control parameter includes at least one of a proportional gain, integral time, and derivative time for performing PID control of the heater.

  The seal jaw manufactures a bag by heat-pressing a predetermined position of the packaging material with a heater. When the seal jaw is replaced, the attributes of the seal jaw main body such as shape and material change, so that the control parameter of the heater used for the control for heating the seal jaw to a temperature suitable for the pressure bonding of the packaging material also changes.

  In the storage unit of the bag making and packaging machine according to the eighth aspect of the present invention, at least one of a proportional gain, integral time, and differential time for performing PID control of the heater of the seal jaw is stored for the plurality of seal jaws. Thereby, in this bag making packaging machine, at least one coefficient used for PID control of the heater of the seal jaw can be set according to the seal jaw, and the currently stored seal jaw can be appropriately heated. it can.

  A bag making and packaging machine according to a ninth aspect of the present invention is the bag making and packaging machine according to the seventh or eighth aspect of the present invention, further comprising a rotation drive unit. A rotation drive part rotates an accommodating part with the seal jaw accommodated in the accommodating part. The control parameter includes a rotation pattern of the sealing jaw.

  In general, the pair of sealing jaws rotate at an appropriate rotation speed according to the rotating position along a rotation path including a position where the sealing jaws abut against each other and seal the packaging material. When the seal jaws are replaced, for example, the size of the surface where the pair of seal jaws abut against each other changes, so the rotation pattern for appropriately sealing the packaging material also changes.

  In the storage unit of the bag making and packaging machine according to the ninth aspect, the rotation pattern of the seal jaws is stored for a plurality of seal jaws. Thereby, in this bag making packaging machine, the rotation pattern of the sealing jaw can be set according to the sealing jaw, and the sealing jaw currently accommodated can be rotated with an appropriate rotation pattern.

  A bag making and packaging machine according to a tenth aspect of the present invention is the bag making and packaging machine according to the seventh or eighth aspect of the present invention, further comprising a rotation drive unit. A rotation drive part rotates an accommodating part with the seal jaw accommodated in the accommodating part. The control parameter includes the maximum rotational acceleration of the seal jaw.

  When the seal jaw is exchanged, the moment of inertia of the seal jaw changes according to the mass of the exchanged seal jaw, so that the rotational acceleration due to the torque of the rotary drive part also changes.

  The maximum rotational acceleration of the seal jaws is stored for a plurality of seal jaws in the storage unit of the bag making and packaging machine according to the tenth invention. Thereby, in this bag making packaging machine, the maximum rotational acceleration speed of the sealing jaw can be set according to the sealing jaw, and the sealing jaw currently accommodated can be rotated at an appropriate rotational acceleration.

  In the bag making and packaging machine according to the present invention, the sealing jaw for sealing the packaging material is accommodated in the accommodating portion in a replaceable manner, and the identification information for identifying the sealing jaw is read by the reading portion from the identification medium of the sealing jaw. Based on the read identification information, the seal jaw currently accommodated is identified, and the setting operation automatically sets the seal jaw packaging operation condition corresponding to the seal jaw. As a result, it becomes possible to facilitate the operation associated with the replacement of the seal jaws, and to reduce the possibility of problems in the operation of the seal jaws.

(Overall configuration of bag making and packaging machine)
A bag making and packaging machine 1 according to an embodiment of the present invention is shown in FIGS. 1 and 2. A bag making and packaging machine 1 shown in these drawings is a machine for bagging a packaged object such as potato chips, and mainly a bag making and packaging unit 5 which is a main body part for bagging a packaged object, and the product. It is comprised from the film supply unit 6 which supplies the film F used as the bag B to the bag packaging unit 5. FIG. In addition, operation switches 7 are arranged on the front surface of the bag making and packaging unit 5, and a liquid crystal display 8 showing an operation state is arranged at a position where an operator who operates the operation switches 7 can visually recognize. Further, a speaker 4 is disposed beside the operation switches 7, and an operator who operates the operation switches 7 can hear the sound output from the speaker 4.

(Configuration of each unit)
The film supply unit 6 is a unit that supplies a sheet-like film F to the forming mechanism 13 of the bag making and packaging unit 5 described later, and is provided adjacent to the bag making and packaging unit 5 here. A film roll around which the film F is wound is set in the film supply unit 6, and the film F is fed out from the film roll.

  As shown in FIGS. 1 and 2, the bag making and packaging unit 5 includes a forming mechanism 13 that mainly forms a film F fed in a sheet shape into a tube shape, and a film F (hereinafter referred to as a tube) that is in a tube shape. Pull-down belt mechanism 14 for conveying the film-like film F) downward, a vertical sealing mechanism 15 for sealing (heat-sealing) the overlapping portion of the tube-like film F in the vertical direction, and the tube-like film F in the horizontal direction. It is comprised from the horizontal sealing mechanism 17 which seals the upper and lower ends of the bag B by sealing, and the support frame 12 which supports each of these mechanisms. A casing 9 is attached around the support frame 12.

  As shown in FIG. 2, the forming mechanism 13 has a tube 31 and a former 32. The tube 31 is a cylindrical member, and the upper and lower ends are open. The tube 31 is disposed at the central opening of the top plate 29 and is integrated with the former 32 via a bracket (not shown). An article to be packaged that is weighed from the computer scale 2 is put into the opening at the upper end of the tube 31. The former 32 is disposed so as to surround the tube 31. The shape of the former 32 is such that the sheet-like film F sent from the film supply unit 6 is formed into a tube shape when passing through the gap between the former 32 and the tube 31. The former 32 is also fixed to the support frame 12 via a support member (not shown). Further, the tube 31 and the former 32 of the forming mechanism 13 can be exchanged according to the size of the bag B to be manufactured. Therefore, the forming mechanism 13 is detachable from the support frame 12.

  The pull-down belt mechanism 14 and the vertical seal mechanism 15 are supported by a support member suspended from the top plate 29, and are disposed so as to extend vertically along the tube 31. The pair of pull-down belt mechanisms 14 is a mechanism that conveys the tube-shaped film F wound around the tube 31 while adsorbing the tube-like film F, and includes a belt having a driving roller, a driven roller adsorbing function, and the like. The vertical sealing mechanism 15 is a mechanism that heats the overlapping portion of the tubular film F wound around the tube 31 while pressing it against the tube 31 with a constant applied pressure to vertically seal the tube 31. The vertical sealing mechanism 15 includes a heater, a heater belt that is heated by the heater and contacts an overlapping portion of the tubular film, and the like.

(Configuration of horizontal seal mechanism)
As shown in FIG. 2, the horizontal sealing mechanism 17 of the bag making and packaging machine 1 of the present embodiment is disposed below the forming mechanism 13, the pull-down belt mechanism 14, and the vertical sealing mechanism 15 and is supported by the support frame 12. .

  As shown in FIGS. 3 and 4, the lateral seal mechanism 17 includes left and right seal units 50 a and 50 b. These sealing units 50a and 50b are configured so that both units 50a and 50b can be used when the tubular film F is laterally sealed while rotating the two sealing jaws 51 and 52 (refer to the locus of the sealing jaw indicated by the dotted line in FIG. 3). This is a unit for pressing the pair of seal jaws 51 or the seal jaws 52 of 50b together. The seal jaws 51 and 52 can be exchanged, and other seal jaws can be attached to the seal units 50a and 50b, but in the following, the seal jaws 51 and 52 will be taken as an example when the seal jaws 51 and 52 are attached. A general configuration of Joe will be described. Hereinafter, in FIG. 3 and FIG. 4, the one located on the left side of the tubular film F is referred to as a first seal unit 50a, and the one located on the right side is referred to as a second seal unit 50b.

  The tubular film F is conveyed downward along the surface CO that divides both the sealing units 50a and 50b so that the surface CO passes through the center in the width direction of the tubular film F. For simplicity of explanation, FIG. 4 shows a state in which the arm cover 100 shown in FIG. 6 is removed.

  The seal jaws 51 and 52 are rotated about the axes C1 and C2 by the drive motor 91. That is, the seal jaws 51 and 52 of the first seal unit 50a rotate around the axis C1, and the seal jaws 51 and 52 of the second seal unit 50b rotate around the axis C2 (the locus of the seal jaw shown by the dotted line in FIG. 3). See).

  The torque of the drive motor 91 is transmitted to the rotation shafts 94 and 96 coaxial with the rotation centers C1 and C2 of the seal units 50a and 50b via the gears 93a and 93b. Since the arm members 92a and 92c are fixed to the rotating shaft 94 and the arm members 92b and 92d are fixed to the rotating shaft 96, the arm members 92a and 92c rotate around the rotation center C1 and the arm members 92b. , 92d rotate around the rotation center C2.

  The seal jaw 51 of the first seal unit 50a is supported at one end by an arm member 92a and at the other end by an arm member 92c. The seal jaw 52 of the first seal unit 50a is also supported at one end by an arm member 92a and at the other end by an arm member 92c. The arm members 92a and 92c are members that rotate about the rotation center C1, and are rotatably supported by the rotation shaft 94.

  The seal jaw 51 of the second seal unit 50b is supported at one end by an arm member 92b and at the other end by an arm member 92d. The seal jaw 52 of the second seal unit 50b is also supported at one end by an arm member 92b and at the other end by an arm member 92d. The arm members 92b and 92d are members that rotate about the rotation center C2, and are rotatably supported on the rotation shaft 96.

  Each of the sealing jaws 51 and 52 has a sealing heater 71 and a sensor 77 inside (see FIG. 5A). Heating of the sealing surfaces of the sealing jaws 51 and 52 is controlled by the sealing heater 71 and the sensor 77, and a part of the tubular film F sandwiched between the left and right sealing jaws 51 and 52 is thermally sealed. Yes.

  Further, the seal units 50a and 50b are respectively squeezed to regulate the fall of the article to be packaged into the tubular film F in conjunction with the seal jaws 51 and 52, or to squeeze the article to be packaged downward. Members 61 and 62 are provided. The squeezing members 61 and 62 are rotated about the axes C1 and C2 by the drive motor 91 in the same manner as the sealing jaws 51 and 52. That is, the ironing members 61 and 62 of the first seal unit 50a rotate around the axis C1, and the ironing members 61 and 62 of the second seal unit 50b rotate around the axis C2.

(Structure of seal jaw)
As described above, the sealing jaws 51 and 52 are members for contacting and heat-sealing the tubular film F, and include the sealing heater 71, the cutting mechanism 72, the punch punching mechanism 73, and the sensor 77. (See FIG. 5A). As shown in FIG. 6, the seal jaws 51 and 52 are fixed to the arm members 92a and 92c by screws 80a to 80d. FIG. 6 shows only the seal unit 50a, but the same applies to the seal unit 50b.

  As shown in FIGS. 5A and 6, two seal heaters 71 are inserted into the seal jaws 51 and 52 along the longitudinal direction of the seal jaws 51 and 52. And it receives the electric power supplied from the electrical wiring 74, generates heat, and heats the sealing jaws 51 and 52 to the sealing temperature corresponding to the tubular film F.

  The sensor 77 is inserted into the seal jaws 51 and 52 as shown in FIG. The sensor 77 senses the temperature of the seal jaws 51 and 52 and sends it to the control unit 20 (see FIG. 7). The control unit 20 receives the signal from the sensor 77 as a feedback signal, and controls the heating by the sealing heater 71 so that the sealing jaws 51 and 52 are maintained at the sealing temperature corresponding to the tubular film F.

  The cutting mechanism 72 is provided on the seal jaws 51 and 52 on the seal unit 50a side, and includes a cutter 72a and a cutter drive mechanism 72b. The cutter 72a moves the seal jaws 51, 52 on the seal unit 50b side from the slide space 53 formed in the seal jaws 51, 52 on the seal unit 50a side by the cutter drive mechanism 72b at the timing of sealing the tubular film F. You can move forward. The cutter driving mechanism 72b is an air cylinder for reciprocating the cutter 72a in a predetermined direction. Accordingly, the bag B (tubular film F) sealed by pressing the cutter 72a between the pair of seal jaws 51, 51 or the pair of seal jaws 52, 52 at substantially the center position in the height direction of the seal portion. ) Can be cut off. As a result, the bags B can be divided one by one and discharged onto the chute conveyor 19 (see FIGS. 1 and 2).

  The punch hole punching mechanism 73 is provided in the seal jaws 51 and 52 on the seal unit 50b side, and has a burn-through heater. Similar to the sealing heater 71, the burn-through heater generates heat upon receiving electric power supplied from the electric wiring 74. The tip of the burn-through heater is processed into a hole punch shape. When the burn-through heater comes into contact with the sealing jaws 51 and 52 so as to sandwich the tubular film F, the tip of the substantially C-shaped heater is pressed against the sealing portion, and the heat and pressure of the bag B Punch holes for suspending when displaying products can be formed in the upper part (seal part).

  As shown in FIG. 6, the sealing jaws 51 and 52 are provided with insertion members 55, while the arms 92a and 92c are provided with receiving members 97 into which the insertion members 55 are inserted. The insertion member 55 guides the electric wiring 74 to the receiving member 97, and the receiving member 97 guides the electric wiring 74 to the power source. An IC tag 54 is attached to the insertion member 55 in the vicinity of the tip thereof, and the tag reader 22 is attached to the receiving member 97 at a position close to the IC tag 54 with the insertion member 55 inserted. Yes. The IC tag 54 attached to the seal jaws 51 and 52 stores identification information “J001” for identifying the type of the seal jaws 51 and 52. The tag reader 22 reads identification information from the IC tag 54 and sends the read identification information to the control unit 20 (see FIG. 7).

  The arms 92a to 92d can accommodate other sealing jaws such as the sealing jaws 151 and 152 shown in FIG. 5 (a) and FIG. 5 (b) are drawn to the same scale. In FIG. 5 (b), members denoted by the same reference numerals as those shown in FIG. It is assumed that the configuration is the same as the member shown in FIG. The sealing surfaces of the sealing jaws 151 and 152 are longer in the vertical direction in FIGS. 5A and 5B than in the sealing jaws 51 and 52, and FIGS. 5A and 5B. The depth direction is shorter. Therefore, when the sealing jaws 151 and 152 are used, a larger bag B can be manufactured than when the sealing jaws 51 and 52 are used.

(Configuration of control unit)
As shown in FIG. 7, the bag making and packaging machine 1 includes a control unit 20, which includes a speaker 4, operation switches 7, a liquid crystal display 8, a seal heater 71, a sensor 77, a punch hole. The opening mechanism 73, the cutting mechanism 72, the drive motor 91, the tag reader 22, and the storage unit 21 are connected. And the control part 20 is controlling the operation | movement of each part by running the program memorize | stored in the storage part 21. FIG. For example, by controlling the torque of the drive motor 91, the rotation pattern of the seal jaws 51, 52 is controlled, the heating of the seal heater 71 is controlled while referring to the feedback signal from the sensor 77, The operation is synchronized.

(Configuration of control parameter table)
The storage unit 21 stores a control parameter table 30 (see FIG. 8) for various types of seal jaws that can be attached to the bag making and packaging machine 1 in a replaceable manner. The control parameter table 30 is a list of control parameters arranged in a table format, and includes a seal jaw ID field, a proportional gain field, an integration time field, a differentiation time field, a rotation pattern field, a maximum rotation acceleration field, a cutter field, and a hole punch. It has a field and a ironing field. Note that record 1 in FIG. 8 corresponds to seal jaws 51 and 52, and record 2 corresponds to seal jaws 151 and 152.

  In the seal jaw ID field, an ID for identifying the type of the seal jaw is stored. That is, “J001” indicates the type of the seal jaws 51 and 52, and “J002” indicates the type of the seal jaws 151 and 152.

  In the proportional gain field, the integral time field, and the derivative time field, the proportional gain Kp, integral time Ki, and derivative for controlling the heating of the type of seal jaw specified by the ID stored in the seal jaw ID field, respectively. The time Kd is stored. That is, in the PID control for heating the sealing jaws 51 and 52, Kp = 500, Ki = 0.1, and Kd = 2.5. In the PID control for heating the sealing jaws 151 and 152, Kp = 650. Ki = 0.1 and Kd = 2.5. The values of the proportional gain field, the integration time field, and the differential time field are values obtained by a test in a state where the seal jaw corresponding to the record is actually attached to the bag making and packaging machine 1.

  The rotation pattern field stores information for specifying a rotation pattern for appropriately rotating the type of seal jaw specified by the ID stored in the seal jaw ID field. That is, the sealing jaws 51 and 52 rotate with “Rotation pattern 1”, and the sealing jaws 151 and 152 rotate with “Rotation pattern 2”. Here, “Rotation pattern 1” corresponds to the rotation pattern P1 shown in FIG. 9, and “Rotation pattern 2” corresponds to the rotation pattern P2 shown in FIG. In FIG. 9, time T1 indicates the sealing time in the rotation pattern P1, and time T2 indicates the sealing time in the rotation pattern P2.

  The maximum rotation acceleration field stores the maximum rotation acceleration for appropriately rotating the type of seal jaw specified by the ID stored in the seal jaw ID field. That is, the maximum rotational acceleration of the seal jaws 51 and 52 is “A1”, and the maximum rotational acceleration of the seal jaws 151 and 152 is “A2”.

  The cutter field stores information indicating whether or not a cutting mechanism is provided for the type of seal jaw specified by the ID stored in the seal jaw ID field. In other words, the sealing jaws 51 and 52 and the sealing jaws 151 and 152 are provided with a cutting mechanism 72.

  In the hole punch field, information indicating the type of punch punching mechanism of the type of seal jaw specified by the ID stored in the seal jaw ID field is stored. That is, “Punch 1” is used for the seal jaws 51 and 52, and “Punch 2” is used for the seal jaws 151 and 152. “Punch 1” corresponds to the punch hole forming mechanism 73 in FIG. 5A, and “Punch 2” corresponds to the punch hole mechanism 173 in FIG. 5B. Further, when “-” is stored in the hole punch field, it means that no punch punching mechanism is provided in the seal jaw corresponding to the record.

  The ironing field stores information indicating the type of ironing member that can be used in combination with the type of seal jaw specified by the ID stored in the seal jaw ID field. That is, “squeezing member 1” indicates the type of the squeezing members 61 and 62 used in combination with the seal jaws 51 and 52 in FIG.

(Start-up process of bag making and packaging machine)
When the operator presses a start button for starting the packaging operation by the bag making and packaging machine 1, the activation process shown in FIG. 10 is started before the packaging operation is started. Details of the activation process will be described below. In the following description, it is assumed that the seal jaws 51 and 52 are currently housed in the arms 92a to 92d. When the operator presses the start button, the operator makes a setting reservation for the operation end time, whether the cutter is driven, the shape of the punch hole, and the like via the operation switches 7.

  In step S <b> 1, the tag reader 22 reads an ID “J001” that identifies the type of the seal jaws 51, 52 from the IC tag 54 attached to the seal jaws 51, 52. Thereby, the bag making packaging machine 1 can recognize the kind of seal jaw currently accommodated in the arms 92a to 92d.

  Next, in step S2, the control unit 20 determines whether or not the seal jaws accommodated in the arms 92a to 92d at the previous use of the bag making and packaging machine 1 are the same as the seal jaws 51 and 52 currently accommodated. Determine whether. The storage unit 21 has a storage area for storing information indicating the type of seal jaws stored during the previous use of the bag making and packaging machine 1. Based on the information stored in the storage area, the control unit 20 determines the type of the seal jaws 51 and 52 identified by the ID “J001” read in step S1 and the previous use of the bag making and packaging machine 1. Compare the types of seal jaws that were sometimes housed. If it is determined that they are not the same, the process proceeds to step S3. If it is determined that they are the same, the process skips step S3 and proceeds to step S4.

  In step S3, the control unit 20 operates as the setting block 20a. The setting block 20a refers to the control parameter table 30 stored in the storage unit 21, and reads the record (record 1) corresponding to the ID “J001” read in step S1. And the setting block 20a changes the control parameter which the program for making the bag making packaging machine 1 perform packaging operation refers to at the time of the execution based on the read record (record 1). Specifically, at this time, the proportional gain Kp, the integration time Ki, and the differential time Kd for performing PID control of the heating of the seal jaws 51 and 52 are set to “500”, “0.1”, and “2.5”, respectively. Further, the rotational acceleration for rotating the seal jaws 51 and 52 is changed to “A1” or less so that the rotation pattern for rotating the seal jaws 51 and 52 is “rotation pattern 1”. As a result, the sealing jaw packaging operation condition corresponding to the sealing jaw currently housed in the arms 92a to 92d is set.

  Next, in step S4, the control unit 20 operates as the diagnostic block 20b. The diagnosis block 20b diagnoses whether or not it is appropriate to operate the seal jaws 51 and 52 under the currently set packaging operation conditions.

  Specifically, the diagnosis block 20b determines the presence / absence of a cutter, the shape of a punch hole, and the like based on the values of the cutter field and the hole punch field of the record (record 1) corresponding to the ID “J001” read in step S1. It is determined whether the structure of the seal jaws 51 and 52 currently housed is consistent with the setting reservation input by the operator.

  The storage unit 21 has a storage area for storing information indicating the type of ironing member currently attached to the bag making and packaging machine 1. This information is input by the operator when the ironing member is attached via the operation switches 7. Based on the information stored in this storage area and the value of the squeezing field of the record (record 1) corresponding to the ID “J001” read in step S1, the diagnosis block 20b It is determined whether or not there is no problem even if it is used in combination with the ironing member currently attached to the bag making and packaging machine 1.

  As a result of the above diagnosis, when it is diagnosed that it is appropriate to operate the sealing jaws 51 and 52 under the currently set packaging operation conditions, the process proceeds to step S5. The process proceeds to step S6.

  In step S5, the packaging operation by the bag making and packaging machine 1 is started together with information indicating the structure of the seal jaws 51 and 52 currently accommodated, such as the presence or absence of the cutter and the shape of the punch hole, and the currently set packaging operation conditions. A message is displayed on the liquid crystal display 8 to confirm with the operator whether or not to accept the response. When the operator inputs an answer indicating that the start of the packaging operation is permitted, the activation process ends, and the process proceeds to the packaging operation.

  On the other hand, in step S6, a warning sound is emitted from the speaker 4, and an item diagnosed as inappropriate in step S4 is displayed on the liquid crystal display 8, and the activation process ends without shifting to the packaging operation.

  In this way, confirmation to the operator is made through steps S4 to S6, thereby reducing the possibility of problems occurring in subsequent packaging operations.

<Features>
(1)
In the bag making and packaging machine 1, seal jaws for sealing the film F are accommodated by the arms 92a to 92d in an exchangeable manner, and identification information for identifying the type of the seal jaws by the tag reader 22 from an IC tag attached to the seal jaws. Is read. Then, based on the read identification information, the type of the seal jaw currently accommodated in the arms 92a to 92d is identified, and the packaging operation condition corresponding to the type of the seal jaw is automatically set by the setting block 20a. Thereby, in this bag making packaging machine 1, compared with the conventional structure which had to reset all the packaging operation conditions manually after exchanging the seal jaws, the time required to change the packaging operation conditions is greatly increased. In addition, it is possible to accurately perform the operation of changing the packaging operation condition, which is particularly difficult for an operator who does not have special knowledge.

(2)
In the bag making and packaging machine 1, before starting the packaging operation, information indicating the structure of the seal jaws currently accommodated in the arms 92a to 92d, such as the presence or absence of a cutter and the shape of a punch hole, is automatically set by the setting block 20a. The sealing jaw wrapping operating conditions set in the above are displayed on the liquid crystal display 8. Thereby, the operator of this bag making packaging machine 1 can confirm the setting reservation of the bag making packaging machine 1 inputted by himself or the packaging operation condition automatically set by the bag making packaging machine 1.

(3)
In the bag making and packaging machine 1, before starting the packaging operation, it is diagnosed whether or not there is no problem even if the seal jaw operates under the packaging operation condition automatically set by the setting block 20a. When it is diagnosed that a problem may occur, a warning sound is emitted from the speaker 4 and a warning is displayed on the liquid crystal display 8. Thereby, in this bag making packaging machine 1, generation | occurrence | production of a malfunction can be avoided.

(4)
In general, the sealing jaw has a heating mechanism such as a sealing heater 71 and a cutting mechanism 72 formed of a cutter 72a and the like, and the tubular film F and the squeezing members 61 and 62 conveyed along the conveying path. Since the operation is complicated while interlocking with elements other than the seal jaws, the control parameters that need to be changed when replacing the seal jaws are wide-ranging. Further, some control parameters relating to the operation of the seal jaws, such as a coefficient for PID control of the seal heater 71, are difficult to understand for those who do not have special knowledge. However, according to the present invention, the control parameter relating to the seal jaw is automatically changed with the replacement of the seal jaw, so that a mistake in changing the control parameter is less likely to occur.

(5)
In the bag making and packaging machine 1, sealing heaters 71 and 52 are provided with built-in sealing heaters 71, and electrical wirings 74 are connected to the sealing heaters 71. The electrical wiring 74 is led to the power source by the insertion member 55 and the receiving member 97. Thereby, in this bag making packaging machine 1, the handling of the electrical wiring when exchanging the seal jaws is facilitated.

<Other embodiments>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.

(A)
In the above embodiment, the IC tag 54 is used as the identification medium having the identification information of the seal jaws 51 and 52, but the present invention is not limited to this aspect.

  For example, as shown in FIG. 11A, a dip switch 54 a may be used instead of the IC tag 54. In this case, the dip switch 54 a is attached to the tip of the insertion member 55 of the seal jaws 51 and 52. Then, instead of the tag reader 22, the reading circuit 22 a of the dip switch 54 a is attached to the receiving member 97. At this time, the reading circuit 22a is attached at a position where the identification information can be read from the dip switch 54a in a state where the insertion member 55 is inserted into the receiving member 97.

  Further, as shown in FIG. 11B, notches 54 b may be formed on the surfaces of the seal jaws 51 and 52 instead of the IC tag 54. In this case, for example, instead of the tag reader 22, a shape sensor 22b capable of reading a physical shape using a laser is attached.

  About another structure, it is the same as that of the said embodiment.

(B)
In the above embodiment, the control parameters relating to the operation of the seal jaws are stored in the storage unit 29 built in the bag making and packaging machine 1, but may be stored in an external storage medium or an IC attached to the seal jaws. It may be stored in the tag itself.

(C)
In the present invention, not only the control parameters exemplified in the description of the above embodiment, but also seals such as a coefficient for performing PID control of the rotation of the arms 92a to 92d and a control parameter for operating the motor driver of the drive motor. Any control parameter relating to jaw movement can be utilized.

(D)
In the above embodiment, the identification information read from the IC tag 54 is information for identifying the type of the seal jaws, but may be information for identifying individual seal jaws.

(E)
In the said embodiment, although the example which has applied this invention with respect to the vertical type bag making packaging machine was given and demonstrated, for example, this invention was applied with respect to the other bag making packaging machine provided with the seal jaw. Even in this case, the same effect as that obtained in the above embodiment can be obtained.

(F)
In the above-described embodiment, the seal jaw has a configuration in which a cutter and a burn-through heater are incorporated. However, the present invention is also applicable to a seal jaw having other functions.

  The present invention has the effect of facilitating the operation associated with the replacement of the seal jaws in the bag making and packaging machine, thereby reducing the possibility of problems in the operation of the seal jaws, and sealing the packaging material. It is useful as a bag making and packaging machine that fills an item to be packaged while making a bag.

The perspective view of the bag making packaging machine 1 which concerns on one Embodiment of this invention. The side view of the bag making packaging machine 1. FIG. FIG. 4 is a side view of the lateral seal mechanism 17. FIG. 3 is a plan view of a lateral seal mechanism 17. (A) The side view of the seal jaws 51 and 52. FIG. (B) Side view of seal jaws 151 and 152. The perspective view of arms 92a and 92c in the state where seal jaws 51 and 52 were stored. The block diagram which shows the structure of the bag making packaging machine. The figure which shows the structure of a control parameter table. The figure which shows the rotational speed of the seal jaws 51 and 52 and the seal jaws 151 and 152. FIG. The flowchart which shows the starting process of the bag making packaging machine. (A) The figure which shows the dip switch attached to the sealing jaw in the state just before the insertion member 55 is inserted in the receiving member 97. FIG. (B) The figure which shows the notch formed in the sealing jaw in the state just before the insertion member 55 is inserted in the receiving member 97. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag making packaging machine 4 Speaker 8 Liquid crystal display 20 Control part 20a Setting block 20b Diagnosis block 21 Storage part 22 Tag reader 22a Reading circuit 22b Shape sensor 30 Control parameter table 51,52,151,152 Seal jaw 54 IC tag 54a Dip switch 54b Notch 71 Sealing heater 91 Drive motors 92a to 92d Arm member

Claims (10)

A bag making and packaging machine that fills an item to be packaged while sealing and packaging the packaging material,
A sealing jaw having an identification medium and sealing the packaging material;
An accommodating portion for exchanging the sealing jaw;
A reading unit that reads identification information for identifying the sealing jaw from the identification medium in a state where the sealing jaw is accommodated by the accommodation unit;
Based on the identification information read by the reading unit, a setting unit for setting a packaging operation condition of the seal jaw;
A bag making and packaging machine. A display unit for displaying the packaging operation condition set by the setting unit;
Further comprising
The bag making and packaging machine according to claim 1. A diagnostic unit for diagnosing whether or not it is appropriate to operate the sealing jaw under the packaging operation conditions set by the setting unit;
When diagnosed as inappropriate by the diagnostic unit, a notification unit for notifying that effect,
Further comprising
The bag making and packaging machine according to claim 1 or 2. The identification medium is an IC tag.
The bag making and packaging machine according to any one of claims 1 to 3. The identification medium is a notch formed in a part of the sealing jaw.
The bag making and packaging machine according to any one of claims 1 to 3. The identification medium is a dip switch.
The bag making and packaging machine according to any one of claims 1 to 3. For a plurality of seal jaws, a storage unit that stores control parameters corresponding to each seal jaw;
Further comprising
The setting unit reads out the control parameter stored in the storage unit from the storage unit corresponding to the seal jaw identified by the identification information read by the reading unit, and performs the packaging operation. Set conditions,
The bag making and packaging machine according to any one of claims 1 to 6. The sealing jaw has a heater, and heats and seals a predetermined position of the packaging material with the heater,
The control parameter includes at least one of a proportional gain, an integration time, and a derivative time for performing PID control of the heater.
The bag making and packaging machine according to claim 7. A rotation drive unit that rotates the storage unit together with the seal jaws stored in the storage unit,
Further comprising
The control parameter includes a rotation pattern of the sealing jaw,
The bag making and packaging machine according to claim 7 or 8. A rotation drive unit that rotates the storage unit together with the seal jaws stored in the storage unit,
Further comprising
The control parameter includes a maximum rotational acceleration of the sealing jaw.
The bag making and packaging machine according to claim 7 or 8.

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