JP2005187027A - Vertical filling and packaging machine, and method of detecting shift in position of film in the machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical filling and packaging machine capable of stopping an operation during its filling and packaging process when a film shifts in position, and making a package while keeping a good sealed state on a vertically sealed portion, and a method of sensing the shift in position of the film in the packaging machine. <P>SOLUTION: The vertical filling and packaging machine includes a film feed mechanism 19 located between a vertical sealing mechanism 15 and a lateral sealing mechanism 16 for pinching the film F by a pair of feed roll members 19A for feeding it out, film position shift sensing means 20L and 20R located between the vertical sealing mechanism 15 and the feed mechanism 19 for sensing whether at least one of side ends of the fed film F has shifted from a predetermined feed position, and a control part 22 capable of stopping the operation of the filling and packaging machine based on sensing signals of the sensing means 20L and 20R. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vertical filling and packaging machine configured to hermetically seal a package such as a liquid, powder, or viscous substance by three-side sealing or four-side sealing of a continuously transported packaging film. It is.

  Conventionally, as packaging bags for filling and sealing hermetically, for example, liquids, powders, or viscous substances, generally a synthetic resin film or a laminate in which this is joined to aluminum foil, etc. A packaging bag is formed by three-side sealing or four-side sealing a packaging film made of a packaging material such as a product in the vertical and horizontal directions.

In order to obtain such a packaging bag, a vertical filling and packaging machine is known in which a film is unwound from a film roll wound in a roll shape and packaged by three-side sealing or four-side sealing. An example of such a vertical filling and packaging machine will be described with reference to FIG. In the figure, a holding frame 2 is provided on the side of the machine base 1 of the filling and packaging machine, and a film raw material R in which a film F is wound in a roll shape is held on the holding frame 2 in a detachable and replaceable manner. A film guide mechanism 3 and a film folding mechanism 4 are provided on the upper part of the machine base 1, and a vertical seal mechanism 5, a horizontal seal mechanism 6 and a cutter mechanism 7 are provided on the front surface of the machine base 1 from above. The film F is guided to the film folding mechanism 4 through the film guiding mechanism 3, and the film F is folded in half along the longitudinal direction by the film folding mechanism 4, and then the vertical seal forming a pair of the heated vertical sealing mechanism 5 is formed. While sending out while sandwiching the film F by a pair of left and right vertical seal members 5B provided on the roll 5A, and heat-sealing by the vertical seal member 5B Then, the film F is vertically sealed FH in a cylindrical shape, and then is provided along the width direction of the film F with a predetermined distance between the heated horizontal seal rolls 6A forming a pair of horizontal seal mechanisms 6. A horizontal seal FS is formed by heat-sealing the film F in the horizontal direction by the horizontal seal member 6B, and a bottom portion which becomes a packaging bag P is formed by the horizontal seal FS, thereby forming a bottomed cylindrical film F. For example, the article W to be packaged made of liquid or the like is filled by the filling nozzle 8A of the filling mechanism 8, and the film F is further fed to the film F by the transverse seal member 6B provided on the transverse seal roll 6A of the transverse seal mechanism 6 again. A continuous packaging bag P is formed by laterally sealing the bag mouth side FS and sealing the article W to be packaged, and then the intermediate portion of the lateral sealing FS portion of the continuous packaging bag P is cut off. Are configured such packaging bag P is fed is separated for each one by cutting with over mechanism 7. As such a vertical filling and packaging machine, the present applicant has also proposed, for example, Patent Document 1.
JP-A-6-8906

  By the way, in the vertical filling and packaging machine having the conventional structure including the above-described Patent Document 1, the rotational speed of the pair of vertical seal rolls 5A of the seal mechanism 5 is low, and the size of the packaging bag P is relatively small. There is no problem in the case where the inner volume of the article to be packaged W is small and the flow rate of the article to be packaged W supplied from the filling nozzle 8A of the filling mechanism 8 is small, but the packaging bag P to be made is large. Accordingly, when the flow rate of the packaged object W made of liquid or the like supplied from the filling nozzle 8A of the filling mechanism 8 increases, the film F that is folded in half and formed into a cylindrical shape becomes the film W of the packaged object W. Since the fluid pressure is applied to the film F from the inner side, the film F easily swells, whereby the side edge portions of the film F located on both ends of the packaging bag P work toward the center due to the swelling of the film F. Yes, The position of the vertical seal portion FH by the seal mechanism 5 is shifted, the seal strength of the vertical seal portion FH is lowered, and heat seal failure may occur in some cases, and the vertical seal member of the vertical seal mechanism 5 may be generated. When the film F is fed out while being heat-sealed with 5B, the feeding operation of the film F becomes unstable.

  Therefore, the present invention has been made paying attention to the above-mentioned problems, and even when a relatively large packaging bag is obtained, in the packaging operation process, the film is folded in half by a vertical sealing mechanism. When filling and packaging while making a bag while heat-sealing, when the film is misaligned, the operation on the filling and packaging process is stopped, and packaging can be performed while maintaining a good seal state of the vertical seal portion. It is an object of the present invention to provide a vertical filling and packaging machine and a method for detecting a film misalignment in the packaging machine.

  According to a first aspect of the present invention, there is provided a vertical seal mechanism for vertically sealing a film to be fed and guided by a vertical seal member provided on a pair of vertical seal rolls, and the vertical seal. A horizontal seal mechanism that horizontally seals along a width direction of the film by a horizontal seal member provided on a horizontal seal roll that forms a pair of cylindrical packaging films that are vertically sealed by a member, and the vertical seal mechanism and the horizontal seal mechanism, The packaging bag is continuously made by heat-sealing in the vertical and horizontal directions, and a filling mechanism provided with a filling nozzle for filling a packaged article in the packaging bag, and the vertical sealing mechanism and the horizontal sealing mechanism A film feed mechanism positioned between and feeding the film by a pair of feed roll members; and the vertical seal mechanism and the film feed mechanism; A film position deviation detecting means for detecting whether or not the film has deviated from a predetermined feeding position on at least one of the side edge portions of the film being sent and a detection signal by the film position deviation detecting means And a control unit that can stop the operation of the filling and packaging machine based on the above.

  In order to solve the above-described problems, the present invention provides a film folding mechanism that folds a film guided and drawn out from a film roll wound in a roll shape into two along the width direction of the film, A vertical seal mechanism that vertically seals the film by sandwiching the film with a vertical seal member provided on a pair of vertical seal rolls in a state in which the films folded by the film folding mechanism are overlapped, and the vertical seal member. A horizontal sealing mechanism that horizontally seals the sealed cylindrical packaging film along the width direction of the film by a horizontal sealing member provided on a pair of horizontal sealing rolls, and the vertical sealing mechanism and the horizontal sealing mechanism vertically and horizontally. Filling nozzle that continuously forms a packaging bag by heat sealing and fills the packaging bag with the object to be packaged A film feed mechanism that is positioned between the vertical seal mechanism and the horizontal seal mechanism and that feeds the film by a pair of feed roll members, and the vertical seal mechanism and the film feed A film position deviation detecting means for detecting whether or not the film has deviated from a predetermined feeding position on at least one of the side edge portions of the film being fed, and the film position deviation detecting means. And a control unit that can stop the operation of the filling and packaging machine on the basis of the detection signal of the vertical filling and packaging machine.

  Further, according to claim 3, in the vertical filling and packaging machine according to claim 1 or 2, the vertical filling and packaging machine is located on the upstream side of the vertical sealing mechanism and includes the folded edge of the film folded in two. Film alignment position deviation detection means provided corresponding to the side edge portion of the film and detecting the alignment position deviation of the film folded in half, and based on a detection signal from the film alignment position deviation detection means And the control unit that can stop the operation of the filling and packaging machine.

  According to a fourth aspect of the present invention, in the vertical filling and packaging machine according to any one of the first to third aspects of the present invention, the film feeding mechanism includes a driving unit including a servo motor, and the control unit includes the control unit, The driving of the driving means including the servo motor is stopped based on the detection signal on at least one side of the position deviation detecting means or the film alignment position detecting means, and the film transfer is interrupted.

  Further, in claim 5, in the vertical filling and packaging machine according to any one of claims 1 to 3, the vertical seal mechanism is provided with a drive unit including a servo motor, and the control unit includes: The drive of the servo motor is stopped based on the detection signal on at least one side of the misalignment detection means or the film alignment position detection means, and the vertical seal on the film is interrupted. It is.

  Further, in Claim 6, in the vertical filling and packaging machine according to any one of Claims 1 to 3, the horizontal seal mechanism is provided with a drive unit including a servo motor, and the control unit includes the controller Based on the detection signal on at least one side of the misalignment detecting means or the film alignment position detecting means, the driving of the driving means consisting of the servo motor is stopped, and the transverse sealing for heat sealing along the width direction of the film is interrupted. It is characterized by this.

  Further, according to claim 7, in the vertical filling and packaging machine according to any one of claims 1 to 3, the filling mechanism includes a supply pump that feeds out the article to be packaged, and a rotational drive of the supply pump. Drive means comprising a motor, and the control unit stops driving the drive means comprising the servo motor based on a detection signal on at least one side of the positional deviation detection means or the film alignment position detection means. The delivery of the packaged goods is interrupted via the supply pump.

  Further, in claim 8, in the vertical filling and packaging machine according to any one of claims 1 to 3 and claim 5, the vertical seal mechanism is provided with a vertical seal roll provided on at least one of the vertical seal rolls. A vertical seal mechanism pressing means for holding the film by pressing the seal member against the vertical seal member provided on the other vertical seal roll, and when the operation of the filling and packaging machine is stopped, the vertical seal mechanism pressing means It is characterized by being configured to release the pressing force to the film.

  Further, in Claim 9, in the vertical filling and packaging machine according to any one of Claims 1 to 8, an informing means for alerting that the filling and packaging machine has stopped is provided. Is.

  Further, in claim 10, in the vertical filling and packaging machine according to claim 1 or 2, the mounting position of the film position deviation detecting means is adjusted according to the packaging specification for each product type according to the selected production conditions. It is characterized by being provided.

  Further, according to claim 11, in the vertical filling and packaging machine according to claim 1 or 2, a feed roll member of the film feed mechanism that makes a pair on both sides with reference to the position of the filling nozzle by the filling mechanism. It is characterized by providing.

  Further, in the twelfth aspect, in the vertical filling and packaging machine according to the eleventh aspect, the feed roll member is provided so that the position thereof can be adjusted according to the packaging specification for each product type according to the selected production conditions. To do.

  Further, in the thirteenth aspect, in the vertical filling and packaging machine according to the first or second aspect, the cross-sectional shape of the filling nozzle provided in the filling mechanism is formed in a flat shape along the width direction of the film. It is characterized by this.

  In order to solve the above-described problems, the present invention provides a film according to a fourteenth aspect, in which a film to be fed and guided is sandwiched by vertical seal members provided on a pair of vertical seal rolls by a vertical seal mechanism, and is vertically aligned along the vertical direction. The vertical sealing mechanism and the horizontal sealing mechanism are sealed in the width direction of the film by a horizontal sealing member provided on a horizontal sealing roll that forms a pair by the horizontal sealing mechanism. The packaging bag is continuously made by heat-sealing in the vertical and horizontal directions, and the article to be packaged is filled by a filling mechanism provided with a filling nozzle in the packaging bag, the vertical sealing mechanism and the horizontal sealing mechanism, The film is sandwiched and fed by a pair of feed roll members formed by a film feed mechanism located between the longitudinal seal mechanism and the A film position detecting means comprising a sensor located between the film feeding mechanism and at least one side of the side edge of the film to be sent determines whether or not the film has deviated from a predetermined feeding position; The film misalignment detection method in the vertical filling and packaging machine is characterized in that the operation of the filling and packaging machine can be stopped based on the determination result.

  Further, in the fifteenth aspect, in the film misalignment detection method in the vertical filling and packaging machine according to the fourteenth aspect, the folded edge of the film located upstream of the vertical seal mechanism and folded in two. The film alignment position deviation detecting means provided corresponding to the side edge portion of the film is detected to detect the deviation of the alignment position of the film folded in half, and based on the detection result, the filling packaging The operation of the machine can be stopped.

  Further, in claim 16, in the film misalignment detection method in the vertical filling and packaging machine according to claim 14 or 15, the detection result on at least one side of the film misalignment detection means or the film alignment position detection means. Based on the above, the operation of the filling and packaging machine is stopped.

  In the present invention, even when a relatively large packaging bag is obtained, in the packaging operation process, when the film is folded and folded while being heat-sealed by a vertical sealing mechanism and then packaged and packaged, When a misalignment occurs, operation in the filling and packaging process is stopped, and a vertical filling and packaging machine capable of packaging while maintaining a good seal state of the longitudinal seal portion, and film misalignment detection in the filling and packaging machine It is possible to provide a method, whereby the initial objective can be achieved.

  According to a first aspect of the present invention, a vertical seal mechanism that vertically seals a film to be fed and guided by a vertical seal member provided on a pair of vertical seal rolls, and a cylindrical package that is vertically sealed by the vertical seal member. Continuous by heat-sealing vertically and horizontally by a transverse seal mechanism that transversely seals the film along the width direction of the film by a transverse seal member provided on a transverse seal roll that makes a pair of films, and the longitudinal seal mechanism and the transverse seal mechanism. The packaging bag is made and the feeding mechanism is provided between the vertical sealing mechanism and the horizontal sealing mechanism, and a pair of feeds provided with a filling nozzle that fills the packaging bag with the article to be packaged. The film feeding mechanism that sandwiches and feeds out the film by a roll member, and is positioned between the vertical sealing mechanism and the film feeding mechanism, and is fed Film position deviation detecting means for detecting whether or not the film has deviated from a predetermined feeding position on at least one side edge of the film, and the operation of the filling and packaging machine is stopped based on a detection signal from the film position deviation detecting means. A vertical filling and packaging machine comprising a control unit that enables the vertical filling and packaging machine. By configuring in this way, the film is positioned at a predetermined position by the film position deviation detecting means comprising a sensor for detecting whether or not the film has deviated from the predetermined feeding position on at least one of the side edge portions of the fed film. It is possible to satisfactorily determine whether or not the film has passed, and when the film deviates from the proper position, that is, the position of the vertical seal portion varies due to the vertical seal mechanism, and the seal strength of the vertical seal portion decreases. Before the occurrence of a malfunction that occurs, or when a warning appears, stop the operation of the filling and packaging machine in advance via the control unit, before the occurrence of a heat seal failure phenomenon at the vertical seal location due to the vertical seal mechanism. It becomes possible to cope. In addition, the film feeding mechanism is positioned between the vertical sealing mechanism and the horizontal sealing mechanism, and the film is fed by a pair of feeding roll members to feed out the film while being pinched by the feeding roll member from the outer surface side of the film. Even if the transfer speed of the film is increased by performing the operation, there is an effect that the film can be supplied more stably than the conventional structure.

  According to a second aspect of the present invention, there is provided a film folding mechanism for folding the film guided and drawn out from the film roll wound in a roll shape into two along the width direction of the film, and the film folded by the film folding mechanism. A vertical seal mechanism that vertically seals the film by sandwiching the film with a vertical seal member provided on a pair of vertical seal rolls, and a cylindrical packaging film that is vertically sealed by the vertical seal member. A horizontal sealing mechanism that horizontally seals along the width direction of the film by a horizontal sealing member provided on a horizontal sealing roll that forms a continuous packaging, and heat sealing in the vertical and horizontal directions by the vertical sealing mechanism and the horizontal sealing mechanism. A filling mechanism provided with a filling nozzle for making a bag and filling a packaged bag with an article to be packaged; Positioned between the mechanism and the horizontal seal mechanism, and positioned between the film feed mechanism that feeds and feeds the film by a pair of feed roll members, and between the vertical seal mechanism and the film feed mechanism. Film position deviation detecting means for detecting whether or not the film has deviated from a predetermined feeding position on at least one side edge portion of the film, and the operation of the filling and packaging machine based on a detection signal by the film position deviation detecting means. A vertical filling and packaging machine comprising: a control unit capable of stopping the operation. By configuring in this way, the film is positioned at a predetermined position by the film position deviation detecting means comprising a sensor for detecting whether or not the film has deviated from the predetermined feeding position on at least one of the side edge portions of the fed film. It is possible to satisfactorily determine whether or not the film has passed, and when the film deviates from the proper position, that is, the position of the vertical seal portion varies due to the vertical seal mechanism, and the seal strength of the vertical seal portion decreases. Before the occurrence of a malfunction that occurs, or when a warning appears, stop the operation of the filling and packaging machine in advance via the control unit, before the occurrence of a heat seal failure phenomenon at the vertical seal location due to the vertical seal mechanism. It becomes possible to cope. In addition, the film feeding mechanism is positioned between the vertical sealing mechanism and the horizontal sealing mechanism, and the film is fed by a pair of feeding roll members to feed out the film while being pinched by the feeding roll member from the outer surface side of the film. Even if the transfer speed of the film is increased by performing the operation, there is an effect that the film can be supplied more stably than the conventional structure.

  Further, the film is provided on the upstream side of the vertical seal mechanism and corresponding to the side edge portion of the film consisting of the folded edge of the film folded in half, and folded in half. A film alignment position detection unit that detects a shift of the film alignment position; and the control unit that can stop the operation of the filling and packaging machine based on a detection signal from the film alignment position detection unit. If, for example, a meandering phenomenon occurs in which the film is unbalanced when it is attempted to increase the speed at which the film is fed and the packaging work is performed at a higher speed, the folded edge of the film (film alignment position) By detecting the deviation and stopping the operation of the filling and packaging machine through the control unit, the vertical seal mechanism by the vertical seal mechanism is the next step. There is an effect that can be processed in advance before giving an adverse effect on the heat-sealing state of Lumpur place. (Claim 3)

  The film feeding mechanism includes a driving unit including a servo motor, and the control unit includes a driving unit including the servo motor based on a detection signal on at least one side of the misalignment detection unit or the film alignment position detection unit. By stopping the driving of the means and interrupting the transfer of the film, it becomes possible to cope with problems before they occur. (Claim 4)

  Further, the vertical seal mechanism includes a drive unit including a servo motor, and the control unit is configured to drive the servo motor based on a detection signal on at least one side of the misalignment detection unit or the film alignment position detection unit. By stopping the driving of the means and interrupting the vertical seal to the film, it becomes possible to cope with problems before they occur. (Claim 5)

  Further, the lateral seal mechanism includes a drive unit including a servo motor, and the control unit is configured to drive the servo motor based on a detection signal on at least one side of the misalignment detection unit or the film alignment position detection unit. By stopping the driving of the means and interrupting the horizontal sealing for heat sealing along the width direction of the film, it becomes possible to cope with problems before they occur. (Claim 6)

  In addition, the filling mechanism includes a supply pump that feeds the article to be packaged, and a drive unit that includes a motor that rotationally drives the supply pump, and the control unit includes the misalignment detection unit or the film alignment unit. Based on the detection signal on at least one side of the position detection means, the drive of the servo motor is stopped, and the delivery of the packaged goods is interrupted via the supply pump, thereby causing a problem in advance. Can be dealt with before (Claim 7)

  The vertical seal mechanism includes a vertical seal mechanism pressing means for holding the film by pressing a vertical seal member provided on at least one of the vertical seal rolls against a vertical seal member provided on the other vertical seal roll. When the operation of the filling and packaging machine is stopped, the pressing force to the film by the vertical seal mechanism pressing means is released, thereby providing a pair of vertical seal mechanisms when the packaging operation is stopped. By maintaining the vertical seal member in an open state, it is possible to prevent high heat from being transmitted to the film, thereby maintaining a standby state without damaging the film. (Claim 8)

  In addition, by providing an informing means for alerting that the filling and packaging machine has stopped, the informing means such as a lamp lighting display, an alarm notice by a buzzer or a speaker, etc. can be informed along with the stop of the filling and packaging machine. it can. (Claim 9)

  In addition, in the state where the attachment position of the film position deviation detection means is provided so that the position can be adjusted according to the packaging specification for each product type according to the selected production conditions, Whether or not the film has passed through the predetermined position is satisfactorily determined by the film position deviation detecting means comprising a sensor for detecting whether or not the film has deviated from the predetermined feeding position on at least one side edge portion of the film. be able to. (Claim 10)

  In addition, with the position of the filling nozzle by the filling mechanism as a reference, by providing a feed roll member of the film feeding mechanism that makes a pair on both sides thereof, it is located between the vertical seal mechanism and the horizontal seal mechanism, By carrying out the film feeding operation while sandwiching the film from the outer surface side with a pair of left and right feed roll members arranged on the both sides with respect to the position of the filling nozzle, the packaging bag is relatively large. Even if the action of the cylindrical film swelled by the packaged article in the cylindrical film that is folded in two and made into a cylindrical shape is increased around the filling nozzle, that is, the right and left of the filling nozzle A cylinder that is folded in half and rolled into a cylinder by feeding out the film while being sandwiched between feed roll members that are paired on both sides. While suppressing the spread of the film it is possible to feed the film, thereby there is an effect that it is possible to supply a stable film than the conventional structure. (Claim 11)

  Further, the feed roll member is provided so that the position thereof can be adjusted according to the packaging specification for each product type according to the selected production conditions, so that the film is fed and guided in a state in accordance with a predetermined condition. be able to. (Claim 12)

  In addition, by forming the cross-sectional shape of the filling nozzle provided in the filling mechanism into a flat shape along the width direction of the film, the tube is folded in two even if the flow rate of the packaged article increases. It is possible to suppress the swelling of the film formed into a bag, and it is possible to suppress the phenomenon such as the positional deviation of the film when the film is fed out. (Claim 13)

  Further, in claim 14, the film guided and drawn out from the film wound in a roll shape is folded in half along the width direction of the film by the film folding mechanism, and the film folded by the film folding mechanism is In a superposed state, the film is sandwiched by a vertical seal member provided on a vertical seal roll that is paired by a vertical seal mechanism, is vertically sealed along the vertical direction, and the vertically sealed cylindrical packaging film is horizontally sealed. A packaging bag is formed by transversely sealing along the width direction of the film by a transverse seal member provided on a transverse seal roll that forms a pair by the mechanism, and heat-sealing vertically and horizontally by the longitudinal seal mechanism and the transverse seal mechanism. In addition, the package is filled with the filling mechanism provided with a filling nozzle in the packaging bag, The film is sandwiched and guided by a feed roll member paired by a film feed mechanism located between the vertical seal mechanism and the horizontal seal mechanism, and located between the vertical seal mechanism and the film feed mechanism. A film position deviation detection means comprising a sensor determines whether or not the film has deviated from a predetermined feeding position on at least one side edge of the film to be delivered, and based on the determination result, the filling packaging It is a film misalignment detection method in a vertical filling and packaging machine, characterized in that the operation of the machine can be stopped. By adopting such a detection method, the film is positioned at a predetermined position by the film position deviation detecting means including a sensor for detecting whether or not the film has deviated from the predetermined feeding position on at least one side of the side edge of the film. It can be determined well whether or not the vehicle has passed.

  The film misalignment detection method for a vertical filling and packaging machine according to claim 14, wherein the film is located on the upstream side of the vertical seal mechanism and comprises a folded edge of the film folded in half. The film alignment position deviation detecting means provided corresponding to the side edge portion of the film detects the deviation of the alignment position of the film folded in half, and the operation of the filling and packaging machine is performed based on the detection result. By being able to stop, it becomes possible to perform a pre-treatment before adversely affecting the heat seal state of the vertical seal portion by the vertical seal mechanism as the next step. (Claim 15)

  Further, in the film misalignment detection method in the vertical filling and packaging machine according to claim 14 or 15, based on a detection result on at least one side of the film misalignment detection means or the film alignment position detection means, By stopping the operation of the filling and packaging machine, a malfunction occurs in advance by automatically stopping each driving means such as a vertical sealing mechanism, a horizontal sealing mechanism, a filling mechanism or a film feeding mechanism. It becomes possible to deal with before. (Claim 16)

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The overall schematic configuration and operation of the vertical filling and packaging machine according to the present invention will be described with reference to FIGS.

  In this figure, the entire structure of the filling and packaging machine is substantially the same as the conventional example, and a holding frame 12 is provided on the side of the machine base of the filling and packaging machine, and a packaging film F is placed on the holding frame 12. A film roll R wound on a roll is provided so as to be detachable and replaceable. The filling and packaging machine is provided with a film guide mechanism 13 and a film folding mechanism 14 for hermetically wrapping the filling material W, and is equipped with a vertical seal mechanism 15, a horizontal seal mechanism 16, a cutter mechanism 17, and a filling mechanism 18. Has been.

  In this case, the film F is made of, for example, a laminate of transparent nylon and low-density polyethylene, where the seal portion corresponds to a vertical seal mechanism 15 that serves as a feed mechanism for the film F from the roll film roll R. Is guided to the film folding mechanism 14 via the film guiding mechanism 13, and the film F is folded in two along the width direction by the folding guide 14A provided in the film folding mechanism 14.

  The vertical seal mechanism 15 according to this embodiment is rotatably provided by a driving means M1 formed of a servo motor, and is provided with ring-shaped vertical seal members (along the outer periphery of a pair of opposing vertical seal rolls 15A). A sealing member 15B sandwiches each folded edge and folded ends (left and right edges) of the film F folded in half, and heat seals in the vertical direction while feeding out the film F. A seal portion FH is formed.

  Further, as described above, the pair of vertical seal rolls 15A is provided with the ring-shaped vertical seal member 15B on the outer peripheral surface side thereof, and the heater (vertical seal portion heating means) 15C is provided on the inner side. . And at least one vertical seal roll 15A is provided so as to be movable among the vertical seal rolls 15A sandwiching the film F, and at least one vertical seal roll 15A is pressed toward the other vertical seal roll 15A. A vertical seal mechanism pressing means 15D is provided.

  This vertical seal mechanism pressing means 15D comprises a cylinder, and the vertical seal mechanism pressing means 15D has a predetermined pressure corresponding to the material of the film F and the production conditions (film speed and seal temperature) of the filling and packaging machine. A pressure adjusting means 15E composed of an electropneumatic regulator for adjusting the pressing force of the vertical seal roll 15A is provided. By doing so, one vertical seal roll 15A can be applied to the other vertical seal roll 15A with a predetermined pressing force corresponding to the material of the film F and the production conditions (film speed and seal temperature) of the filling and packaging machine. F can be pressed and stable heat sealing can be performed.

  Further, the lateral seal mechanism 16 is rotatably provided by a driving means M2 composed of a servo motor, and the film F is formed into a cylindrical shape by lateral seal members 16B respectively provided on a pair of opposed lateral seal rolls 16A. Is transversely heat-sealed to form a lateral seal portion FS that becomes the bottom of the packaging bag P.

  In addition, as the filling mechanism 18, a storage tank (for example, a package W made of sauce or soup) is stored in a film F formed in a continuous bottomed cylindrical shape by a vertical seal portion FH and a horizontal seal portion FS. (Not shown) is configured to be filled by a filling nozzle 18B arranged along the inside of the film F which is folded in half via a supply pump 18A and formed into a cylindrical shape. In this case, the package W is supplied by rotating the supply pump 18A of the filling mechanism 18 by, for example, a drive means M3 comprising a servo motor, and the package W supplied by the operation of the supply pump 18A. Is filled into the tubular film F through the filling nozzle 18B, and then along the width direction of the filled tubular film F. Portion which becomes the bag opening side of the Irumu F are sealed are heat-sealed (transverse sealing FS) laterally by lateral sealing mechanism 16 again, a four-way sealed packing bag P is the bag manufacturing continuously.

  Further, the filling nozzle 18B of the filling mechanism 18 is generally used to increase the flow rate of the package W when the capacity of the package W to be filled is large and the size of the packaging bag P needs to be set large. It is conceivable to increase the outer dimension of the filling nozzle 18B. However, if the appearance dimension is simply set large, the filling nozzle 18B is inserted into the tubular film F folded in two, and the article to be packaged. When it is going to supply W, it exists in the tendency for the film F to swell and become bulky by the to-be-packaged object W supplied from the filling nozzle 18B as a form of the cylindrical film F. For this reason, in this embodiment, the cross-sectional shape of the filling nozzle 18B of the filling mechanism 18 is formed in a flat shape along the width direction of the film F, and is folded in half by the filling nozzle 18B having the flat shape. The tubular film F is configured so that the film F can be supplied in a state where the dimension in the thickness direction is relatively thin.

  In addition, the cutting mechanism 17 cuts and cuts the substantially central portion of the horizontal seal portion FS of the film F in a bundled state in the vertical direction by a pair of opposed blades (not shown), and cuts the packaging bags P one by one. It is configured to be carried out.

  Further, in this embodiment, the film F is formed by a pair of feed roll members 19A which are located between the vertical sealing mechanism 15 and the horizontal sealing mechanism 16 and are arranged in two pairs on the left and right sides with respect to the position of the filling nozzle 18B. A film feeding mechanism 19 is provided for performing the feeding operation of the film F while sandwiching the film from the outer surface side. The film feeding mechanism 19 is provided so as to be rotationally driven by a driving means M4 made of, for example, a servomotor. By configuring in this way, for example, the packaging bag F is large and the filling amount of the article to be wrapped W is increased, and the cylinder is formed by the article to be wrapped W in the tubular film F which is folded in two and formed into a tubular shape. Even if the action of the film-like film F swells, it is sandwiched between the feed roll members 19A arranged adjacent to the filling nozzle 18B, that is, the feed roll members 19A arranged in pairs on the left and right sides of the filling nozzle 18B. However, by feeding out the film F, it is possible to feed out the film F while suppressing the spread (swelling) of the tubular film F that is folded in two and formed into a tubular shape. At this time, the cross-sectional shape of the filling nozzle 18B of the filling mechanism 18 is formed in a flat shape along the width direction of the film F, and the left and right sides of the flat filling nozzle 18B are arranged in pairs. Combined with feeding the film F while being pinched by the feeding roll member 19A, the tubular film F folded back in half is sent out satisfactorily while suppressing the swelling.

  The attachment position of the feed roll member 19A of the film feed mechanism 19 is selected according to various conditions such as the width dimension of the film F, the thickness or material of the film F, the feed speed of the film F, the supply amount of the package W, etc. The position can be adjusted according to the packaging specifications for each product type according to the production conditions.

  Further, in this embodiment, the folded edges and folded ends (left and right ends) of the film F, which is located between the vertical sealing mechanism 15 and the film feeding mechanism 19 and folded back in half, are provided. Film position deviation detection means for detecting whether or not the side edge of the film F has deviated from a predetermined feeding position on the downstream side of each vertical seal member 15B that is sandwiched and heat-sealed in the vertical direction. 20L and 20R are arranged on the left and right. In the present embodiment, as the film position deviation detection means 20L and 20R serving as sensors, when the film F is in a normal feeding state, the film F is interposed between the conductive member 20A and the contact member 20B. Since the film F is arranged so as to be fed out, it becomes a non-energized state, and when the film F is not present, that is, when the film F which is folded in two and fed out deviates from a predetermined position, for example, the ground side The conductive member 20A (minus side) and the contact member 20B (positive side electrode) are in direct contact with each other to be energized, and the conductive member 20A and the contact member 20B each have an electric wiring cord or the like. And electrically connected to the power supply side of the filling and packaging machine.

  Further, the mounting positions of the film position deviation detecting means 20L and 20R are, for example, for each type depending on the selected production conditions such as the width dimension of the film F, the thickness or material of the film F, and the feeding speed of the film F. The position is adjustable so that it can be set at an appropriate position according to the packaging specifications.

  In this embodiment, in addition to the film misalignment detection means 20L and 20R, the side edge of the film F is located on the upstream side of the vertical seal mechanism 15 and includes the folded edge of the film F folded in half. Film alignment position deviation detection means 21 is provided corresponding to the edge portion and detects the deviation of the alignment position of the film F folded back in half.

  As this film alignment position deviation detecting means 21, for example, a conductive member 21A made of a metal material serving as the ground side is attached to the machine side of the filling and packaging machine, and the conductive member 21A is folded in half. Conductive contacts 21B, which are disposed on the inner surface side of the F matching point FS, and serve as positive electrodes from the outer surface side of the film F matching point on both sides of the conductive member 21A, respectively. The contacts 21B are arranged to face each other, and are configured to be electrically connected to the positive side of the power supply of the filling and packaging machine via an electric wiring cord or the like.

  In the film alignment position deviation detecting means 21 according to this embodiment, when the film F is fed out in a normal half-fold state, the contact is made in a state where the inner surfaces of the alignment points of the film F are aligned on both sides of the conductive member 21A. Since the conductive contacts 21B are arranged so that the film F is fed out in contact with the alignment position of the film F on the outer surface side of the alignment position of the film F, the non-energized state is set. It will be in the state to maintain. Moreover, when a shift | offset | difference arises in the at least one side of the alignment location of the film F and the film F will remove | deviate, when the conductive member 21A and the contactor 21B located in the side from which the alignment location of the film F removed | deviated directly, It is set to be in a conductive state (energized state).

  Next, the electrical configuration of the filling and packaging machine in the embodiment of the present invention will be described with reference to FIG. In the following description, main control means for controlling each mechanism of the filling and packaging machine will be described. However, in order to simplify the description, main parts of the present invention will be mainly described, and control means in other mechanisms. Description of the processing operation is omitted.

  A control unit 22 includes a CPU that executes a processing program, a ROM that stores the processing program, a RAM that temporarily stores calculation results, an input / output interface circuit, and the like. The control unit 22 has film position deviation detection means 20L and 20R and film position detection means 21 provided on the left and right sides of the film F (bag making film) as input means. Further, the control unit 22 serves as output means, a drive means M1 comprising a servo motor for rotationally driving the vertical seal member 15B of the vertical seal mechanism 15, and a servo for rotationally driving the horizontal seal member 16B of the horizontal seal mechanism 16. Drive means M2 composed of a motor, drive mechanism M3 composed of a servomotor for rotationally driving a supply pump 18A provided in the filling mechanism 18, and servo for rotationally driving a feed roll member 19A of the film feed mechanism 19 It has a driving means M4 made of a motor, a pressure adjusting means 15E of a pressing means 15D in the vertical seal mechanism 15, and an informing means 23 made up of an LED, a lamp, a speaker, a buzzer and the like.

  The control unit 22 is arranged between the film alignment position deviation detecting means 21 arranged upstream of the vertical sealing mechanism 15, and between the vertical sealing mechanism 15 and the film feeding mechanism 19, and on both end sides of the film F. When a detection signal from any one of the film position deviation detection means 20R and 20L individually disposed on the left and right sides for detecting the deviation is input (the film deviation is detected by any detection means), The operation of the drive means M1, M2, M3, M4 of the vertical seal mechanism 15, the horizontal seal mechanism 16, the filling mechanism 18, and the film feeding mechanism 19 is interrupted to stop the conveyance of the film F and the operation of the filling and packaging machine is stopped. To do. Further, when the operation of the filling and packaging machine is stopped, the control unit 22 electrically turns off the pressure adjusting means 15E of the pressing means 15D in the vertical seal mechanism 15 so that the pair of vertical seal rolls 15A of the vertical seal mechanism 15 is turned off. Each of the sealing members 15B provided is operated to release from the film F, and an abnormal operation process of the notification means 23 such as lighting or blinking an LED or a lamp, or operating a speaker or a buzzer is performed on the film F to the operator. Is informed that the position is deviated from the appropriate position of the filling and packaging machine.

  At this time, as shown in FIG. 1 and FIG. 3, the folded edge (right side) of the film F folded in half is placed at the position where the folded portion is folded by the vertical seal member 15B of the vertical seal mechanism 15. Since only the vertical seal FH needs to be applied, there is no problem even if the end side of the right film F is removed, so that the detection signal from the film misalignment detection means 20R located on the right side is received and output from the control unit 22. In accordance with the control signal, a predetermined operation, for example, the cutting mechanism 17 is stopped in a state in which the packaging bags P have passed and cut one by one, and the horizontal sealing mechanism 16 has a horizontal sealing member. In 16B, after applying a horizontal seal FS at a predetermined location, the cycle is stopped in a cycle in a certain repetitive operation so as to stop in a positional relationship where it does not come into contact with the film F. That.

  Further, as shown in FIGS. 1 and 3, the folded end portion (the matching side edge of the left film F) on the mating side of the film F folded in half is the vertical sealing member 15 </ b> B of the vertical sealing mechanism 15. Therefore, if the end of the film F located on the left side is removed, the vertical seal FH is not properly sealed and supplied from the filling mechanism 18. The packaged item W to be leaked will be leaked, so that the vertical position is instantaneously generated based on the control signal output from the control unit 22 in response to the detection signal of the film position deviation detection means 20L located on the left side. The operation of each of the drive means M1, M2, M3, M4 of the seal mechanism 15, the lateral seal mechanism 16, the filling mechanism 18, and the film feeding mechanism 19 is stopped.

  The control unit 22 includes, as input means, a main power switch 24A for turning on / off the filling and packaging machine, an operation start / operation stop switch for operating the filling and packaging machine separately from the power switch 24A, and the like. It has the setting means 24 which consists of a touch panel provided with the driving operation switch 24B.

  Therefore, in the filling and packaging machine of the present invention having the above-described configuration, when the main power switch 24A is turned on, the vertical sealing mechanism 15 is based on an input signal to the control unit 22 including a control device such as a microcomputer or a sequencer. Electric power is supplied to electrical components such as the heater 15C and the heater (not shown) of the lateral seal mechanism 16 and the operation switch 24B is turned on, so that the drive mechanism M4 is based on predetermined control by the control unit 22. The feed operation of the film F feeds the film F, and the feed pump 18A provided in the filling mechanism 18 is driven to rotate the drive means M3 to feed the article W to be packed. The pressure adjusting means 15E provided in the cylinder is electrically operated and folded in half by a vertical seal mechanism pressing means 15D comprising a cylinder. Both end portions of the returned packaging film F are respectively sandwiched by the vertical seal member 15B with a predetermined pressing force, and the vertical seal roll 15A and the horizontal seal roll 16A provided in the vertical seal mechanism 15 and the horizontal seal mechanism 16 are provided. The drive means M1, M2 are electrically operated to rotate the vertical seal roll 15A and the horizontal seal roll 16A. At this time, when the film misalignment detection means 20L, 20R is in a normal film F feeding state, the film F is fed out with the film F interposed between the conductive member 20A and the contact member 20B. Therefore, in the film alignment position deviation detecting means 21, when the film F is fed out in a normal half-fold state, the alignment position of the film F on both sides of the conductive member 21A is maintained. Arranged so that the conductive contact 21B is brought into contact with the alignment position of the film F and the film F is fed out to the outer surface side of the alignment position of the film F. Therefore, since the non-energized state is maintained, the operation of the filling and packaging machine is continued.

  Further, when the operation of the filling and packaging machine is stopped, that is, on the downstream side of the vertical sealing mechanism 15, at least one side of the film F which is folded in two and fed out deviates from a predetermined feeding state and is displaced. In this case, any one of film position deviation detecting means 20L and 20R arranged between the vertical seal mechanism 15 and the film feeding mechanism 19 and arranged on the left and right sides for detecting the deviation on both ends of the film F, respectively. A detection signal from the detection means is input, and based on a control signal output from the control means 22 by this input signal, each drive means of the vertical seal mechanism 15, the horizontal seal mechanism 16, the filling mechanism 18 and the film feed mechanism 19. The operations of M1, M2, M3, and M4 are interrupted, the conveyance of the film F is stopped, and the operation of the filling and packaging machine is stopped (operation is stopped). As a result, the position of the vertical seal portion FH by the vertical seal mechanism 15 fluctuates, and before the occurrence of a malfunction that the seal strength of the vertical seal portion FH is reduced or when a warning appears, the control unit 22 is used in advance. By stopping the operation of the filling and packaging machine, it becomes possible to cope with the occurrence of the heat seal failure phenomenon of the vertical seal portion FH by the vertical seal mechanism 15. Further, when the operation of the filling and packaging machine is stopped, based on the control signal output from the control means 22, the pressure adjusting means 15E provided in the vertical seal mechanism 15 is electrically operated to cause the vertical seal mechanism pressing means 15D made of a cylinder. Is operated so that one vertical seal roll 15A provided in the vertical seal mechanism 15 is separated from the other vertical seal roll 15A, so that the pressing force to the film F is released, whereby the vertical seal mechanism 15 By maintaining the open state so that the vertical seal member 15B does not directly contact the film F, it becomes possible to prevent the film F from being heated and welded when the packaging operation is stopped without damaging the film F. Thus, the standby state can be maintained without damaging the film F. At this time, if the film misalignment detecting means 20L, 20R is in an abnormal state of feeding out the film F (when the film F is misaligned), the film F exists between the conductive member 20A and the contact member 20B. For example, the conductive member 20A on the ground side (minus side) and the contact member 20B on the plus side electrode are in direct contact with each other and become energized, and an input signal is transmitted to the control unit 22, thereby filling The packaging machine stops operating.

  In addition, by providing the informing means 23 for alerting that the filling and packaging machine has stopped, the operator can be informed by the informing means 23 such as a lamp lighting display, an alarm notification by a buzzer or a speaker as well as the filling and packaging machine being stopped. it can. In this case, it is possible to notify the operator of the stopped state of the filling and packaging machine by providing the notification means 23 by lamp lighting or LED lighting on the display screen of the setting means 24 formed of a touch panel.

  Separately from the control means for detecting the shift of the film F on the downstream side of the vertical sealing mechanism 15 and stopping the operation of the filling and packaging machine, the upstream side of the vertical sealing mechanism 15 is located and folded in two. In the case where a shift of the alignment position of the film folded back in half is provided corresponding to the side edge portion of the film F consisting of the folded edge of the folded film F, the upstream side of the vertical seal mechanism 15 The detection signal of the film alignment position deviation detecting means 21 disposed in is input, and based on the control signal output from the control unit 22 by this input signal, the vertical sealing mechanism 15, the horizontal sealing mechanism 16, the filling mechanism 18, The operation of each driving means M1, M2, M3, M4 of the film feeding mechanism 19 is interrupted, the conveyance of the film F is stopped, and the operation of the filling and packaging machine is stopped (the operation is stopped). It is. In addition, based on the control signal output from the control unit 22, the pressure adjusting means 15E provided in the vertical seal mechanism 15 is electrically operated to operate the vertical seal mechanism pressing means 15D including a cylinder, thereby Since one vertical seal roll 15A provided in the seal mechanism 15 operates so as to be separated from the other vertical seal roll 15A and the pressing force to the film F is released, the heat welding of the film F is prevented when the packaging operation is stopped. Thus, the standby state can be maintained without damaging the film F. At this time, when at least one side of the alignment position of the film F is displaced and the film F is detached, the conductive member 21A and the contact 21B located on the side where the alignment position of the film F is removed are in direct contact with each other. Therefore, an input signal is transmitted to the control unit 22, thereby stopping the operation of the filling and packaging machine.

  Therefore, in the present embodiment, the film alignment position deviation detecting means 21 that detects the deviation of the alignment position of the film F that is disposed upstream of the vertical seal mechanism 15 and is folded in half, the vertical seal mechanism 15, and the film A detection signal from any one of the film position deviation detection means 20L and 20R arranged between the feeding mechanism 19 and arranged on the left and right sides for detecting the deviation of both ends of the film F, that is, By detecting the deviation of the film F, the filling and packaging machine can be immediately stopped in advance. By doing so, it becomes possible to suppress the waste of the material due to leakage of the article W to be packed as much as possible by stopping the filling and packaging machine, and to prevent the problem that the mechanical device of the filling and packaging machine becomes dirty. It becomes possible.

  Further, the servo motor is applied as the driving means M3 for rotationally driving the supply pump 18A of the filling mechanism 18, but there is no need to finely control the supply amount as the flow rate control of the package W. Further, a driving means composed of a pulse motor or other general motors may be applied. The driving means such as the vertical sealing mechanism 15, the horizontal sealing mechanism 16, the film feeding mechanism 19 and the like is not limited to this point filling mechanism 18. The same applies to.

  Further, in this embodiment, the vertical seal mechanism 15 and the horizontal seal mechanism are provided by providing the feed roll members 19A of the film feed mechanism 19 that make a pair on both sides with reference to the position of the filling nozzle 18B by the filling mechanism 18. The film F is fed out while sandwiching the film F from the outer surface side by a pair of left and right feed roll members 19A located on the both sides of the position of the filling nozzle 18B with reference to the position of the filling nozzle 18B. Thus, the packaging film P is large, the filling amount of the packaged article W is increased, and the tubular film F is inflated by the packaged article W in the cylindrical film F that is folded in two and formed into a cylindrical shape. Even if it works, it is sandwiched by the feed roll members 19A that make a pair around the filling nozzle 18B, that is, the left and right sides of the filling nozzle 18B. By feeding out the rumm F, it becomes possible to feed out the film F while suppressing the spread of the tubular film F folded in two and made into a cylindrical shape, which makes the film F more stable than the conventional structure. There is an effect that supply can be performed. At this time, the cross-sectional shape of the filling nozzle 18B provided in the filling mechanism 18 is formed in a flat shape along the width direction of the film F, so that even if the flow rate of the packaged article W increases, it is folded in two. It is possible to suppress the swelling of the film F which is folded and formed into a cylindrical shape, and suppresses the positional deviation of the film F when the film F is fed out, for example, phenomena such as side shake and meandering as compared with the conventional case. In addition, the feeding operation of the film F by the paired feed roll members 19A can be sent to the next stroke in a more stable state.

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. In the above-described embodiment, a single film F is used as a packaging bag P with a four-side seal. Is pulled out and guided in a half-folded state, and at two positions (both ends of the film F) of the folded-back end portion folded back in half-fold and the folded-back edge (left and right edge portions) of the folded packaging film F. In addition, film position deviation detection means 20L and 20R, which are located on the upstream side of the vertical seal mechanism 15 and are arranged on the left and right sides for detecting the deviation on both ends of the film F, are arranged on the left and right sides, respectively. In addition, although an example in which the film alignment position deviation detecting means 21 is disposed at the upstream side of the vertical seal mechanism 15 and the film F is turned back is described, as another embodiment, for example, one sheet The film is drawn and guided in a folded state, and the folded packaging film is sealed on three sides to form a packaging bag. As in the above-described embodiment, the upstream side of the seal member of the vertical seal mechanism By providing the film misalignment detecting means and the film alignment misalignment detecting means one by one on the downstream side, substantially the same effect as in the above-described embodiment can be obtained.

  In this embodiment, the film F is drawn and guided while being folded in half (bi-folded), and the four-side seal type is described as an example. However, as a four-side seal type packaging bag, The two sheets of film are overlapped and guided, and both side edges of the film are heat-sealed in the vertical direction by two vertical seal members that make a pair, and are laterally sealed by the horizontal seal member of the horizontal seal mechanism. The misalignment detecting means and the film alignment position detecting means according to the present invention can be applied to the case where a packaging bag is formed by heat-sealing four sides of the packaging film.

  In this embodiment, the film feeding mechanism 19 is rotationally driven by a driving means M4 made of a servo motor, so that the tubular film F that is folded back and fed in a stable state is sent out to the next process. In this case, the driving means M4 of the film feeding mechanism 19 is set so that the vertical seal roll 15A of the vertical sealing mechanism 15 is substantially synchronized with the rotational driving by the driving means M1 made of a servomotor, The film feed speed of the feed roll member 19A of the film feed mechanism 19 may be set slightly higher than the rotation speed of the seal mechanism 15 to prevent loosening of the film F when the film F is fed. Yes, the conveyance speed may be appropriately selected according to the material of the film F, the packaging form, and the like.

  In the present embodiment, the film position misalignment detection means 20L, 20R and the film alignment position misalignment detection means 21 have been described with reference to an energization type sensor structure. For example, a transmission type or reflection type photoelectric sensor or imaging data based on image recognition is used. Detection means for recognizing and discriminating can be used. Depending on the packaging conditions, only the film misalignment detection means 20L and 20R may be used, and the film alignment detection means 21 may not be applied.

  Further, depending on the packaging form and size of the film F, the width dimension or installation position of the vertical seal member 15B of the vertical seal mechanism 15 may be set as appropriate, and the width dimension of the film F, the thickness or material of the film F, Film misalignment detection means 20L, 20R, film alignment misalignment detection means 21 and the like according to the packaging specifications for each product type according to the selected production conditions such as the feeding speed of the film F, the supply amount of the package W, etc. It is only necessary to arrange the mounting position so that the position can be adjusted. In addition, when the width of the film F is changed or the position is adjusted, the adjustment of the film folding mechanism 14 is interlocked with the position adjustment of the film folding mechanism 14 so that the position adjustment can be performed, thereby simplifying the adjustment work. Is also possible.

  Further, as described in detail in the above-described embodiments, the film guided by feeding can be applied to a three-side seal type or four-side seal type vertical filling and packaging machine.

1 is an overall front view of an overall vertical filling and packaging machine showing an embodiment of the present invention. It is a figure which shows the vertical seal | sticker mechanism of the filling packaging machine of an Example same as the above. It is a side view which mainly shows the film position shift detection means and film alignment position shift detection means of the filling packaging machine of an Example same as the above. It is a block diagram which shows the electric constitution of the control means in the vertical filling packaging machine of an Example same as the above. It is a whole general | schematic front view which shows the conventional filling packaging machine.

Explanation of symbols

F film FH Vertical seal FS Horizontal seal M1, M2, M3, M4 Drive means (servo motor)
P Packaging bag R Film original W W Package 12 Holding frame 13 Film guide mechanism 14 Film folding mechanism 15 Vertical seal mechanism 15A Vertical seal roll 15B Vertical seal member 15C Heater (Vertical seal part heating means)
15D Vertical seal mechanism pressing means (cylinder)
15E Pressure adjusting means 16 Horizontal seal mechanism 16A Horizontal seal roll 16B Horizontal seal member 17 Cutting mechanism 18 Filling mechanism 18A Filling nozzle 19 Film feed mechanism 19A Feed roll member roll 20L, 20R Film misalignment detection means 20A Conductive member 20B Contact member 21 Film Alignment position detection means 21A Conductive member 21B Contact 22 Control unit 23 Notification means 24 Setting means

Claims (16)

  A vertical sealing mechanism that vertically seals a film to be fed and guided by a vertical seal member provided on a pair of vertical seal rolls, and a horizontal seal roll that forms a pair of cylindrical packaging films that are vertically sealed by the vertical seal members A lateral sealing member that laterally seals along the width direction of the film by a lateral sealing member provided on the side, and heat-sealing longitudinally and laterally by the longitudinal sealing mechanism and the lateral sealing mechanism, thereby continuously forming a packaging bag. In addition, the film is sandwiched between a filling mechanism provided with a filling nozzle for filling an object to be packaged in the packaging bag, and a pair of feed roll members positioned between the vertical sealing mechanism and the horizontal sealing mechanism. The film feeding mechanism that feeds out and the vertical sealing mechanism and the film feeding mechanism are located between the side edge portions of the film being fed. A film misalignment detecting means for detecting whether or not a predetermined feeding position has been deviated on at least one side, and a control unit capable of stopping the operation of the filling and packaging machine based on a detection signal from the film misalignment detecting means; A vertical filling and packaging machine comprising:   In a state where the film folded back and folded in the width direction of the film is folded in half along the width direction of the film, and the film folded back by this film folding mechanism is overlapped. A vertical seal mechanism that vertically seals the film by sandwiching the film with a vertical seal member provided on a pair of vertical seal rolls, and a cylindrical packaging film that is vertically sealed by the vertical seal member is provided on a pair of horizontal seal rolls. A lateral sealing mechanism that laterally seals along the width direction of the film by a lateral sealing member, and a bag is continuously made by heat-sealing longitudinally and laterally by the longitudinal sealing mechanism and the lateral sealing mechanism, and A filling mechanism provided with a filling nozzle for filling a package bag with an article to be packaged, the vertical sealing mechanism and the horizontal sealing machine Between the film feed mechanism that sandwiches and feeds out the film by a pair of feed roll members, and the side of the film that is fed between the vertical seal mechanism and the film feed mechanism Film position deviation detecting means for detecting whether or not a predetermined feeding position is deviated on at least one side of the edge portion, and the operation of the filling and packaging machine can be stopped based on a detection signal from the film position deviation detecting means. A vertical filling and packaging machine comprising: a control unit;   The film is located on the upstream side of the vertical sealing mechanism and is provided corresponding to the side edge portion of the film consisting of the folded edge of the film folded in half, and the film folded back in half A film alignment position deviation detecting means for detecting an alignment position deviation; and the control unit capable of stopping the operation of the filling and packaging machine based on a detection signal from the film alignment position deviation detection means. The vertical filling and packaging machine according to claim 2, wherein   The film feeding mechanism is provided with a driving unit including a servo motor, and the control unit includes a driving unit including the servo motor based on a detection signal on at least one side of the misalignment detection unit or the film alignment position detection unit. The vertical filling and packaging machine according to any one of claims 1 to 3, wherein driving is stopped and transfer of the film is interrupted.   The vertical seal mechanism includes a drive unit including a servo motor, and the control unit includes a drive unit including the servo motor based on a detection signal on at least one side of the misalignment detection unit or the film alignment position detection unit. The vertical filling and packaging machine according to any one of claims 1 to 4, wherein the driving is stopped and the vertical sealing of the film is interrupted.   The lateral seal mechanism includes a driving unit including a servo motor, and the control unit includes a driving unit including the servo motor based on a detection signal on at least one side of the misalignment detection unit or the film alignment position detection unit. The vertical filling and packaging machine according to any one of claims 1 to 3, wherein driving is stopped, and horizontal sealing for heat sealing along a width direction of the film is interrupted.   The filling mechanism includes a supply pump that feeds the article to be packaged, and a drive unit that includes a motor that rotationally drives the supply pump, and the control unit detects the misalignment detection unit or the film alignment position. The drive of the drive means consisting of the servo motor is stopped based on a detection signal on at least one side of the means, and the delivery of the package is interrupted via the supply pump. Item 4. The vertical filling and packaging machine according to any one of items 3.   The vertical seal mechanism includes a vertical seal mechanism pressing means for holding the film by pressing a vertical seal member provided on at least one of the vertical seal rolls against a vertical seal member provided on the other vertical seal roll. Any one of claims 1 to 3 and 5, wherein the pressing force applied to the film by the vertical seal mechanism pressing means is released when the operation of the filling and packaging machine is stopped. A vertical filling and packaging machine according to claim 1.   The vertical filling and packaging machine according to any one of claims 1 to 8, further comprising an informing unit that alerts that the filling and packaging machine has stopped.   3. The vertical filling according to claim 1, wherein the mounting position of the film position deviation detecting means is provided so that the position can be adjusted according to the packaging specification for each product type according to the selected production conditions. Packaging machine.   The vertical filling packaging according to claim 1 or 2, wherein a pair of feeding roll members of the film feeding mechanism are provided on both sides of the filling nozzle with respect to the position of the filling nozzle by the filling mechanism. Machine.   12. The vertical filling and packaging machine according to claim 11, wherein the feed roll member is provided so that the position of the feed roll member can be adjusted according to the packaging specification for each product type selected.   The vertical filling and packaging machine according to claim 1 or 2, wherein a cross-sectional shape of a filling nozzle provided in the filling mechanism is formed in a flat shape along a width direction of the film.   The film to be fed and guided is sandwiched by the vertical seal member provided on the vertical seal roll paired by the vertical seal mechanism and vertically sealed along the vertical direction, and the vertically sealed cylindrical packaging film is paired by the horizontal seal mechanism. A lateral sealing member provided on the lateral sealing roll formed is laterally sealed along the width direction of the film, and heat-sealed longitudinally and laterally by the longitudinal sealing mechanism and the lateral sealing mechanism to continuously form a packaging bag. In addition, the film is filled by the filling mechanism provided with a filling nozzle in the packaging bag, and the film is fed by a feed roll member that is paired by the film feed mechanism located between the vertical seal mechanism and the horizontal seal mechanism. A film position formed by a sensor positioned between the vertical seal mechanism and the film feed mechanism. The detection means determines whether or not the film has deviated from a predetermined feeding position on at least one side edge of the film to be delivered, and the operation of the filling and packaging machine is stopped based on the determination result. A film misalignment detection method in a vertical filling and packaging machine, characterized by being made possible.   The film alignment position deviation detecting means provided on the upstream side of the vertical sealing mechanism and corresponding to the side edge portion of the film, which is formed of the folded edge of the film folded in half, 15. The film in a vertical filling and packaging machine according to claim 14, wherein a shift in the alignment position of the folded film is detected, and the operation of the filling and packaging machine can be stopped based on the detection result. Misalignment detection method.   16. The operation of the filling and packaging machine is stopped based on a detection result on at least one side of the film misalignment detection means or the film alignment position detection means. Method for detecting misalignment of film in vertical filling and packaging machine.

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