JP4574121B2 - Display body, display body manufacturing method and display body manufacturing apparatus for manufacturing the display body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a display body, a display body manufacturing method and a display body manufacturing apparatus for manufacturing the display body, and in particular, an display body capable of displaying a bag by hanging a tape to which a plurality of bags are bonded. The present invention relates to a display body manufacturing method and a display body manufacturing apparatus for manufacturing a body.
[0002]
[Prior art]
  BACKGROUND ART A bag making and packaging machine exists as an apparatus that fills a bag with an article to be packaged such as a snack while making the bag while making the bag. For example, in a vertical bag making and packaging machine called a pillow wrapping machine, a packaging material, which is a sheet-like film, is formed into a cylindrical shape by a former and a tube, and the vertical edge is overlapped by a vertical sealing mechanism. Is sealed (thermally welded) to form a cylindrical packaging material. Then, the tubular packaging material that finally becomes a bag is filled with an article to be packaged from the tube, and is heat sealed across the upper end portion of the bag and the lower end portion of the succeeding bag by a horizontal sealing mechanism below the tube. Then, the center of the heat seal part (lateral seal part) is cut with a cutter.
[0003]
  It has been proposed to add a function of attaching the manufactured bag to the strip tape to such a bag making and packaging machine (see, for example, Patent Document 1). In the apparatus disclosed here, the bag is attached with a small gap from the strip tape. Thus, if a bag is attached to a strip tape to form an exhibit, a plurality of bags wrapping snacks or the like can be easily displayed at a retail store or the like by hanging the end of the strip tape.
[0004]
[Patent Document 1]
  International Publication No. 98/52823 Pamphlet
[0005]
[Problems to be solved by the invention]
  In the apparatus of the above-mentioned patent document 1, when the method of adhesion is used as a method of attaching the bag to the strip tape, the adhesive property is applied to the entire surface of the strip tape so that it can cope with the change of the bag size and the attachment pitch of the bag to the strip tape. It is necessary to form a certain sealant layer.
[0006]
  However, if an adhesive sealant layer is formed on the entire surface of the strip tape, the adhesive treatment can be performed reliably even if the bag mounting position on the strip tape changes. Cost becomes high.
[0007]
  SUMMARY OF THE INVENTION An object of the present invention is an exhibit that can easily cope with a change in the mounting position of an article (such as a bag) on a tape and that can be reduced in cost, an exhibit manufacturing method for manufacturing the exhibit, and an exhibit manufacturing apparatus. Is to provide.
[0008]
[Means for Solving the Problems]
  The display body according to claim 1 is formed by filling a packaged article into an internal space after forming a film into a cylindrical shape.Applying pressure and heatThe bag includes a bag created by hermetically sealing, a tape to which the bag is bonded, and an adhesive. The article can be displayed by hanging the tape. Each bag is glued to the tape. Adhesive is pre-applied in part on the surface of the film before being formed into a cylindrical shape, located at the site of adhesion to the tape of the bag,Apply heat to develop adhesive strength.The adhesive that bonds the article and the tape is applied to a part of the surface located on the back side of the back seal portion of the film to be hermetically sealed. Moreover, the melting temperature of this adhesive is higher than the melting temperature of the sealing adhesive layer provided on the back surface sealing portion of the film for hermetic sealing.
[0009]
  Here, instead of providing an adhesive layer on the tape side as in the prior art, an adhesive is provided on the bag. Therefore, in the case where the adhesive layer is not provided on the tape, even if the position of the tape to which the bag is bonded is changed, the adhesive is surely interposed between the bag contacting the tape and the tape. The bag is securely attached to the tape. Moreover, it is not necessary to provide the adhesive entirely as in the conventional layer formed on the tape side.
[0010]
  As a result, it is not necessary to provide an adhesive layer on the tape side, or the adhesive layer on the tape side can be reduced, and the cost of the entire exhibit can be reduced.
[0011]
  Also,Here, in the process of dissolving the adhesive layer for sealing performed when the film is sealed to form a bag, the adhesive that bonds the bag and the tape does not dissolve, and the adhesive only has a preheating effect. is there. Therefore, it is possible to suppress the adhesive from being melted in the hermetic seal of the film. In addition, since the adhesive is somewhat preheated by the hermetic seal of the film, the burden on the heat treatment when bonding the bag to the tape is reduced.
[0012]
  Claim 2The display object manufacturing apparatus according toClaim 1The display body manufacturing apparatus which manufactures the display body described in 1. It is provided with a tape feeding mechanism and a welding mechanism. The tape feeding mechanism feeds out the tape. The welding mechanism heats the adhesive applied to the film and applies a force so that the adjacent bag and the tape are in close contact with each other through the adhesive applied to the film.
[0013]
  Claim 3The exhibit manufacturing method according to the present invention is an exhibit manufacturing method for manufacturing the exhibit according to claim 1, and includes a first step and a second step. In the first step, an adhesive is provided on the film. In the second step, force is applied so that the adjacent bag and the tape are in close contact with each other via the adhesive at the bonding site.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  [First Embodiment]
  [Overview]
  A side view and a front view of a vertical bag making and packaging machine 1 for manufacturing an exhibit according to the first embodiment of the present invention are shown in FIGS. 1 and 2. The bag making and packaging machine 1 is a machine that manufactures a bag by covering food such as potato chips (here, potato chips) with a film and sealing the cylindrical film vertically and horizontally. Further, the bag making and packaging machine 1 has a function of attaching the manufactured bag to the strip tape, and finally the exhibit shown in FIG. 18 is manufactured.
[0015]
  In principle, the potato chips are dropped from the weighing machine 2 provided above the bag making and packaging machine 1 by a predetermined amount.
[0016]
  The bag making and packaging machine 1 includes a bag making unit 10, a film roll holding unit 22, a strip mounting unit 30, a strip transport unit 41, a strip roll holding unit 42, a transport conveyor 85, and a control unit 90 (FIG. 12). For example). Each part except for the conveyor 85 is fixed or supported by the frame 6 supported by the four legs 5, and most of the parts are covered by the casing 7 for safety.
[0017]
  [Film roll holder 22]
  The film roll holding unit 22 holds a film roll 22a that feeds the sheet-like film F to the former 13a of the bag making unit 10 to be described later. The film roll 22a is obtained by winding a film F. The film F fed out from the film roll 22a is kept in a predetermined range by a dancer roller or the like, and loosening and meandering during conveyance are suppressed.
[0018]
  Further, a film remaining amount detection sensor 23 (see FIG. 12) for detecting the remaining amount of the film F wound around the film roll 22a is disposed in the vicinity of the film roll holding unit 22.
[0019]
    <Film F>
  As shown in FIGS. 15 to 17, the film F has a large three-layer structure, and is further formed with a printing layer F <b> 1 and an adhesive layer F <b> 2. The upper side of FIG. 16 is the surface of the film F, and when it becomes the bag B as shown in FIG. In order from the front side, the three layers are laminated in the order of 20 μm biaxially stretched (heat sealable) polypropylene, 15 μm PE, and 20 μm biaxially stretched (heat sealable) polypropylene. An aluminum vapor deposition layer is formed between the second layer and the third layer. Further, on the back side of the first layer, a printing layer F1 is formed by gravure printing on a portion that needs to be printed.
[0020]
  In addition, an adhesive layer F2 is partially formed on the front side of the first layer of the film F. The position of the adhesive layer F2 is specified by the relative position with respect to the printing layer F1, and a plate on which only the adhesive is applied when performing gravure printing is manufactured. It is formed so as to be coated on the surface layer of the film.
[0021]
  Here, a part coat agent is used as the adhesive of the adhesive layer F2, but a delayed tack agent, a hot melt, or the like may be used instead. The adhesive layer F2 is applied in an amount of 1 to 200 μm, preferably 5 to 50 μm.
[0022]
  As shown in FIGS. 15 to 17, by applying the adhesive layer F <b> 2 to the surface of the film F, the adhesive layer F <b> 2 faces the front side of the lateral seal portion at the upper end when the bag B is formed. (Refer to the vicinity of the center of the upper end of the bag B in FIG. 18).
[0023]
  The third innermost layer of the film F is welded by heat of about 120 ° C. at the time of horizontal sealing, but the adhesive layer F2 is selected to generate an adhesive force at a higher temperature. Adhesive force is not generated in the adhesive layer F2 due to heat from a sealing jaw 51 (described later) during sealing.
[0024]
  [Bag making part 10]
  As shown in FIG. 3, the bag making unit 10 includes a forming mechanism 13 that forms a film F that is fed in a sheet shape into a cylindrical shape, and a cylindrical film F (hereinafter referred to as a cylindrical film). A pull-down belt mechanism 14 that conveys downward, a vertical seal mechanism 15 that vertically seals the overlapping portion of the tubular film, and a horizontal seal that seals the upper and lower ends of the bag B by horizontally sealing the tubular film. And a mechanism 17.
[0025]
    <Molding mechanism 13>
  The forming mechanism 13 includes a tube 13b and a former 13a. The tube 13b is a cylindrical member, and the upper and lower ends are open. Potato chips C weighed by the weighing machine 2 are put into the opening at the upper end of the tube 13b. The former 13a is disposed so as to surround the tube 13b. The shape of the former 13a is such that the sheet-like film F fed from the film roll 22a is formed into a cylindrical shape when passing between the former 13a and the tube 13b. Further, the tube 13b and the former 13a of the forming mechanism 13 can be replaced according to the size of the bag to be manufactured.
[0026]
    <Pull-down belt mechanism 14>
  The pull-down belt mechanism 14 is a mechanism for adsorbing and transporting the tubular film wound around the tube 13b downward. As shown in FIG. 3, belts 14c are provided on both the left and right sides of the tube 13b. In the pull-down belt mechanism 14, the belt 14c having an adsorption function is rotated by the driving roller 14a and the driven roller 14b to carry the cylindrical film downward. In FIG. 3, a roller drive motor that rotates the drive roller 14a and the like is not shown.
[0027]
    <Vertical seal mechanism 15>
  The vertical sealing mechanism 15 is a mechanism that heats and vertically seals the overlapping portion of the cylindrical film wound around the tube 13b against the tube 13b with a constant pressure. The vertical sealing mechanism 15 is located on the front side of the tube 13b, and has a heater and a heater belt that is heated by the heater and contacts an overlapping portion of the tubular film.
[0028]
    <Horizontal seal mechanism 17>
  The horizontal sealing mechanism 17 is disposed below the forming mechanism 13, the pull-down belt mechanism 14, and the vertical sealing mechanism 15. The horizontal sealing mechanism 17 has a pair of sealing jaws 51 with a built-in heater (see FIG. 4). The pair of seal jaws 51 are respectively positioned on the front side and the rear side of the tubular film, and as shown in FIG. 1 and FIG. 4, etc., swivel so as to draw a substantially D-shaped trajectory T that is symmetrical in the longitudinal direction. . In the middle of turning, the tubular film is sandwiched in a state where the pair of sealing jaws 51 are pressed against each other, and pressure and heat are applied to the portions of the tubular film that are the upper and lower ends of the bag to seal. The sealing jaw 51 located on the front side of the tubular film is supported by the shaft 17c so as to rotate about the shaft 17c. The shaft 17c rotates by the operation of the turning motor 17a (see FIG. 12), and horizontally moves back and forth through the ball screw mechanism (not shown) by the operation of the shaft moving motor 17b. Similarly, the seal jaw 51 located on the rear side of the tubular film also rotates by the operation of the turning motor 17a and horizontally moves back and forth by the operation of the shaft moving motor 17b. Thus, the locus T of the substantially D-shaped sealing jaw 51 is realized by the pair of sealing jaws 51 rotating and moving horizontally. Further, the pressure when the pair of sealing jaws 51 sandwich the cylindrical film is adjusted by torque control of the shaft moving motor 17b.
[0029]
  A cutter (not shown) is built in one of the pair of sealing jaws 51. This cutter is different from the cutter 45 described later, and plays the role of separating the bag B and the subsequent cylindrical film at the center position in the height direction of the lateral seal portion by the sealing jaw 51.
[0030]
  13 and 14 show a lateral sealing operation by the pair of sealing jaws 51. FIG. In the example of the horizontal sealing operation shown in FIG. 13, the sealing jaw 51 that has swung sandwiches the cylindrical film at the point P10 (see FIGS. 13 (a) and 13 (b)), and moves downward as it is in the cylindrical shape. Pressure and heat are applied to the film, and the tubular film is released from the point P11 and separated from each other (see FIGS. 13C and 13D). In other words, the seal jaw 51 applies pressure and heat to the tubular film while moving downward at the same speed as that of the tubular film from the point P10 to the point P11, and performs horizontal sealing. And it cut | disconnects with a cutter and the bag B is discharged | emitted below by cancelling | pinching the cylindrical film which became the bag B in the point P11 (refer FIG. 10).
[0031]
  FIG. 14 shows another example of the horizontal sealing operation. Here, the sealing jaw 51 turns while drawing a substantially D-shaped trajectory T2 different from the trajectory T. The sealing jaw 51 that has swiveled sandwiches the tubular film at a point P12 that is lower than the point P10 (see FIGS. 14A and 14B), and moves downward as it is in the tubular shape. Pressure and heat are applied to the film, and the pinching of the tubular film is released at a point P11 to move away from each other (see FIGS. 14C and 14D). That is, the seal jaw 51 applies a pressure and heat to the tubular film while performing a horizontal seal while moving downward at the same speed as the tubular film from the point P12 to the point P11. And it cut | disconnects with the cutter incorporated in the sealing jaw 51, and the bag B is discharged | emitted below by canceling | releasing the clamping of the cylindrical film which became the bag B in the point P11.
[0032]
  In the bag making and packaging machine 1, the sealing time is changed according to the size of the bag B to be manufactured, the material of the film F to be used, and the like. This change in the sealing time is mainly a change in the time during which the pair of sealing jaws 51 sandwich the upper and lower end portions of the bag B, and the cylindrical film in which the pair of sealing jaws 51 becomes the bag B is used. This can be done by shifting the point at which nipping starts and the point at which nipping of the tubular film is released. Here, as shown in FIGS. 13 and 14, the sealing time is changed by shifting the height position of the point at which the pair of sealing jaws 51 starts to sandwich the tubular film that becomes the bag B. Control is performed to keep the height position (release position) of the point at which the sealing jaw 51 releases the pinching of the tubular film that forms the bag B constant. That is, the point at which the pair of seal jaws 51 is released from the sandwiching of the tubular film that forms the bag B is that the pair of seal jaws 51 is positioned downward while the tubular film is sandwiched as shown in FIGS. Regardless of the distance traveled, the point P11 is fixed.
[0033]
  [Strip mounting part 30]
  The strip attachment portion 30 performs an attachment operation in which the produced bag B is gripped at a position where the sealing jaw 51 of the lateral seal mechanism 17 is released, and the bag B is moved obliquely downward and welded to the strip tape S. . The strip attachment part 30 includes a holding mechanism 31, a moving mechanism 32, and a fixing mechanism 33.
[0034]
    <Holding mechanism 31>
  The holding mechanism 31 has a holding point P1 (see FIG. 10) on the basis of a fixing point P11 at which the sealing jaw 51 of the lateral sealing mechanism 17 releases the holding of the bag B, and the upper side of the left and right sides of the bag B. Each is gripped and held by a gripping arm 31b (see FIG. 6) that wraps around from both the front and rear sides. The holding point P1 is determined at a position lower than the fixed point P11 by a predetermined distance, and is always constant like the fixed point P11. That is, the holding point P1 is always at the same position even if the size of the bag B or the material of the film F is changed.
[0035]
  As shown in FIG. 6, the holding mechanism 31 is a pair of left and right symmetrical mechanisms, and is incorporated in a main body 31a, two gripping arms 31b arranged on the upper side of the main body 31a, and the main body 31a. A holding air cylinder (not shown) and a fixing portion 31c fixed to the moving mechanism 32 described later are provided. The grip arm 31b is supported by the main body 31a so as to rotate about a vertical rotation axis arranged in parallel in the front-rear direction. The holding air cylinder built in the main body 31a is supplied with high-pressure air from a high-pressure air supply unit (not shown) through an on-off valve. When the holding air cylinder is actuated, the two gripping arms 31b are rotated in the directions indicated by the dotted lines in FIG. 6 so that the tip end grips the side portion of the bag B from both the front and rear sides. The pair of holding mechanisms 31 arranged separately on the left and right sides are controlled at the same timing, and both the left and right sides of the bag B are simultaneously gripped by a total of four gripping arms 31b.
[0036]
    <Movement mechanism 32>
  The moving mechanism 32 moves the holding mechanism 31 so that the bag B moves from the holding point P1 to a fixing point P2 (see FIGS. 4 and 10) described later. That is, the moving mechanism 32 moves the bag B from the holding point P1 to the fixing point P2 by moving the holding mechanism 31 that holds the bag B. As a result, the moving mechanism 32 causes the bag B (see the upper bag B in FIG. 4) attached to the strip tape S to be discharged from the lateral seal mechanism 17 downward (the upper bag in FIG. 10). The bag B is moved to a position where it does not interfere with the bag B).
[0037]
  The moving mechanism 32 mainly includes a rail 72 whose upper and lower ends are fixed by a fixing member 71, a slide member 73 movable along the rail 72, a support member 74 fixed to the slide member 73, and a link member. 75, a rotating member 76, pulleys 66 to 70, belts 66a to 69a, and a rotating shaft 76a.
[0038]
  As shown in FIG. 4, the fixing member 71 (not shown in FIG. 5) is fixed to a pair of left and right side wall plates 30a fixed to the frame 6 so that the upper and lower portions of the rail 72 do not move. It is fixed in place.
[0039]
  The rail 72 is inclined from the upper front side to the lower lower side in a side view, and supports the slide member 73 via a linear bush.
[0040]
  As will be described later, the slide member 73 is mechanically interlocked with the movement of the seal jaw 51 of the lateral seal mechanism 17 and repeats the reciprocating movement obliquely along the rail 72 in a side view. The slide member 73 is a pair of left and right members, and connecting rods 79a and 79b are spanned between both members.
[0041]
  A support member 74 is fixed to the slide member 73 via connecting rods 79a and 79b. The support member 74 is a pair of left and right members, and extends obliquely forward on the upper side. Each upper end portion fixes the fixing portion 31 c of the holding mechanism 31. Therefore, the slide member 73, the support member 74, and the holding mechanism 31 are similarly repeatedly moved obliquely (up and down and back and forth).
[0042]
  One end of the link member 75 is pin-supported at the lower end 73 a of the slide member 73. The other end of the link member 75 is pin-supported by the rotation end portion 76 b of the rotation member 76. When the rotating member 76 rotates in accordance with the rotation of the rotating shaft 76a fixed at the center of rotation, the link member 75 assumes the posture shown in FIG. 4 or the posture shown in FIG. Will be lowered or raised diagonally.
[0043]
  The left and right rotating shafts 76a that rotate the pair of left and right rotating members 76 are rotated by the rotation of the pulleys 67 and 70, respectively. As shown in FIGS. 5 and 7, the pulley 67 rotates in conjunction with the rotation of the pulley 66 via a belt 66 a. The pulley 66 is fixed to a shaft 17c that rotates the seal jaw 51 of the lateral seal mechanism 17, and is rotated by the power of the turning motor 17a (see FIG. 12) of the lateral seal mechanism 17 that rotates the shaft 17c. Is. That is, the pulley 67 fixed to the right rotation shaft 76 a is rotated by the power of the turning motor 17 a of the lateral seal mechanism 17. Further, the pulley 70 fixed to the left rotation shaft 76a also rotates in conjunction with the pulley 67 via the pulleys 68 and 69, the belts 67a and 69a, and the connecting shaft 68a. Therefore, the left and right rotating shafts 76 a that rotate the rotating member 76 and move the slide member 73 obliquely are rotated by the power of the turning motor 17 a of the lateral seal mechanism 17, and are mechanically affected by the movement of the seal jaw 51. Will be linked to.
[0044]
  With such a configuration, the moving mechanism 32 causes the holding mechanism 31 to be below the sealing jaw 51 as shown in FIG. 10 immediately before releasing the bag B manufactured by the sealing jaw 51 of the lateral sealing mechanism 17. Until the bag B is manufactured, the holding mechanism 31 is positioned in the vicinity of the fixing mechanism 33 as shown in FIG.
[0045]
    <Fixing mechanism 33>
  The fixing mechanism 33 welds the bag B to the strip tape S via the adhesive layer F2 (see FIG. 17) at the fixing point P2 below and behind the holding point P1. As shown in FIGS. 5 and 8, the fixing mechanism 33 mainly includes a heater 33a, a pressing cylinder 33b, and a pressing body 33c.
[0046]
  The heater 33a is a normally energized heater that generates heat and has a maximum temperature of about 200 ° C. The pressing cylinder 33b is supplied with high-pressure air from the above-described high-pressure air supply unit via an on-off valve, and the head 63 rises obliquely by operation. The head 63 supports the distal end portion of the pressing body 33 c via the connecting member 62. Therefore, the reciprocating motion of the head 63 of the pressing cylinder 33b is replaced with the turning motion of the pressing body 33c. The pressing body 33c is pin-supported at its rear end portion by a fixed shaft 61, and revolves by a predetermined angle so that the front end portion contacts or separates from the heater 33a (see the dotted line in FIG. 8).
[0047]
  Although the illustration of the bag B is omitted in FIG. 8, the adhering mechanism 33 has an upper end (side-sealed) of the strip tape S and the bag B between the heater 33a and the pressing body 33c as shown in FIG. In the state where the adhesive layer F2 is present), the strip tape S and the upper end of the bag B are sandwiched between the pressing body 33c and the heater 33a based on a command from the control unit 90. Here, when the air in the pressing cylinder 33b is extracted, the pressing body 33c is configured to apply pressure toward the heater 33a, and the upper end of the bag B is pressed against the strip tape S for a predetermined time. Thereby, the upper end part of the bag B is welded to the strip tape S via the adhesive layer F2.
[0048]
  The fixing mechanism 33 is provided with an overheat prevention plate 33d that is switched between the state shown in FIG. 9A and the state shown in FIG. 9B by the solenoid 33e. The solenoid 33e is a mechanical component that converts magnetic energy into mechanical energy by applying a magnetic force generated by passing a current through the electromagnetic coil, and operates according to a command from the control unit 90. When the control unit 90 sends an operation command to the solenoid 33e as will be described later, it is located at a location away from the strip tape S being conveyed along the heater 33a in the state of FIG. The leading end portion of the overheat prevention plate 33d is moved obliquely upward to push up the strip tape S obliquely forward. As a result, the strip tape S is separated from the heater 33a, and the state shown in FIG. 9B is obtained.
[0049]
  The heater 33a does not have a movable structure, and wiring for supplying power to the heater 33a is also fixed.
[0050]
  [Strip roll holder 42]
  The strip roll holding unit 42 holds a strip roll 42 a for supplying the strip tape S to the space above the heater 33 a of the fixing mechanism 33. The strip roll 42a is formed by winding a strip tape S.
[0051]
  Further, a strip remaining amount detection sensor 43 (see FIG. 12) for detecting the remaining amount of the strip tape S remaining on the strip roll 42a is disposed in the vicinity of the strip roll holding portion 42. The strip remaining amount detection sensor 43 is a photoelectric sensor that detects whether the strip tape S remains on the strip roll 42a by detecting the presence of the strip tape S fed out from the strip roll 42a. The detection result by the strip remaining amount detection sensor 43 is sent to the control unit 90.
[0052]
  Here, since the adhesive layer F2 is applied to the film F as described above, it is not necessary to form an adhesive sealant layer on the surface of the strip tape S, and the strip tape is formed only from the base material. S may be configured. However, here, in order to improve the degree of adhesion, a sealant layer is formed on the strip tape S thinner than before, and the adhesive force of the adhesive layer F2 on the film F side is supplemented while reducing costs.
[0053]
  [Strip transport section 41]
  The strip transport unit 41 transports the strip tape S fed from the strip roll 42 a to the fixing mechanism 33. The strip transport unit 41 includes a transport motor 41a, a drive belt 41b, drive rollers 41c and 41d, and a plurality of rollers. A driving portion composed of the conveying motor 41 a, the driving belt 41 b, and the driving rollers 41 c and 41 d is provided in the vicinity of the fixing mechanism 33. When the rotation of the rotation shaft of the conveying motor 41a is transmitted to the driving rollers 41c and 41d via the driving belt 41b, the strip tape S hung on the driving rollers 41c and 41d is sent above the heater 33a of the fixing mechanism 33. To go. Along with this, the strip roll 42a that feeds the strip tape S to the drive rollers 41c and 41d by a plurality of rollers feeds the strip tape S wound one after another by rotating.
[0054]
  The transport motor 41a for transporting the strip tape S is a servo motor. The control unit 90 described later takes a pulse of the conveyance motor 41a to grasp the feed amount and controls the feed amount of the strip tape S.
[0055]
  Further, the tension of the strip tape S fed out and conveyed from the strip roll 42 a to the fixing mechanism 33 is adjusted by the tension adjusting mechanism 44. As shown in FIG. 11, the tension adjusting mechanism 44 includes two rollers 44a and 44b that are rotatably supported by a fixing member 6a fixed to the frame 6, and a rear end portion 44d that is rotatably supported by the fixing member 6a. The arm member 44c extends downward in the front, and the roller 44f is pivotally supported by the tip end portion 44e of the arm member 44c. By sequentially stripping the strip tape S over these three rollers 44a, 44f and 44b, the arm member 44c and the roller 44f pull the strip tape S with a predetermined force, and the tension of the strip tape S is within a predetermined range. Kept. Thereby, loosening and meandering of the strip tape S are suppressed.
[0056]
  Further, a cut or a hole is formed in the strip tape S sent from the strip transport unit 41 to the fixing mechanism 33, so that the drive roller 41c of the strip transport unit 41 and the heater 33a of the fixing mechanism 33 are connected. A cutter 45 and a punch 46 are provided between them (see FIG. 8). The cutter 45 can form a cut 45a in the strip tape S as shown in FIG. The punch 46 can form a hole 46a in the strip tape S as shown in FIG. The cutter 45 and the punch 46 are disposed on the upstream side in the transport direction of the strip tape S with respect to the heater 33a and the pressing body 33c of the fixing mechanism 33.
[0057]
  [Conveyor 85]
  The transport conveyor 85 discharges a series of bags B, the upper end portion of which is welded to the strip tape S as shown in FIG. As shown in FIG. 12, the conveyor 85 is continuously operated at a constant speed by a conveyor motor 85a (it can be operated intermittently).
[0058]
  [Control unit 90]
  The control unit 90 controls a motor, an air cylinder, a heater, and the like of each unit based on the setting content input by the user of the bag making and packaging machine 1 on the touch panel display 91. As shown in FIG. 12, the control unit 90 includes a roller driving motor for the pull-down belt mechanism 14, a heater for the vertical sealing mechanism 15, a turning motor 17 a for the horizontal sealing mechanism 17, a shaft moving motor 17 b and a built-in cutter, and a holding mechanism 31. The holding cylinder, the heater 33a and the pressing cylinder 33b of the fixing mechanism 33, the conveying motor 41a of the strip conveying unit 41, the cutter 45, the punch 46, the conveying motor 85a of the conveying conveyor 85, and the like are controlled. In addition, detection results are input to the control unit 90 from the film remaining amount detecting sensor 23, the strip remaining amount detecting sensor 43, and the like.
[0059]
  The user or the like uses the touch panel display 91 to determine the size of the bag B to be manufactured, the number of bags B to be manufactured per unit time, whether to attach the bag B to the strip tape S, or a group of bags B to be attached to the strip tape S. , The setting pitch of the bag B with respect to the strip tape S, the distance between the group of bags B and the group of bags B, and the like.
[0060]
  Next, the control of the control unit 90 related to attaching the bag B manufactured by the bag making unit 10 and discharged downward from the lateral seal mechanism 17 to the strip tape S will be described.
[0061]
  <Control of attaching bag B to strip tape S>
  The strip attachment portion 30 attaches the bag B to the strip tape S by three operations: a holding operation of the bag B by the holding mechanism 31, a moving operation of the bag B by the moving mechanism 32, and a sealing operation by the fixing mechanism 33.
[0062]
  In the holding operation of the bag B by the holding mechanism 31, the control unit 90 operates the holding cylinder immediately before the pair of sealing jaws 51 releases the pinched state of the bag B so that the left and right side portions of the bag B are moved to the four sides. It is gripped by the book gripping arm 31b.
[0063]
  The movement operation of the bag B by the movement mechanism 32 is mechanically performed by the power of the turning motor 17a of the lateral seal mechanism 17 as described above.
[0064]
  In the sealing operation by the fixing mechanism 33, the pressing cylinder 33b is controlled to press the pressing body 33c against the heater 33a that is always energized. As a result, the strip tape S and the upper end of the bag B are sandwiched between the pressing body 33c and the heater 33a, and the bag B passes through the adhesive layer F2 by the heat of the heater 33a and the pressure by the pressing body 33c. Bonded to the strip tape S. This pressing timing (adhesion timing) coincides when the bag B is moved to the fixing point P2 by the moving mechanism 32. Further, the control unit 90 adjusts the temperature of the heater 33a, the pressing force by the pressing body 33c, and the time for which the pressing body 33c is pressed against the heater 33a, so that the adhesive layer F2 applies the bag B to the strip tape S. The degree of fixation is adjusted so as to fall within an appropriate range.
[0065]
  Of the three operations described above, the holding operation and the adhering operation can be performed regardless of the movement of the bag making unit 10, and the moving operation is performed in accordance with the movement of the lateral seal mechanism 17 of the bag making unit 10. Are linked to each other.
[0066]
  <Strip tape transport control, cutter and punch control>
  The strip transport unit 41 includes the number of bags B to be manufactured per unit time input and set by the user, the number of groups of bags B attached to the strip tape S, the mounting pitch of the bags B with respect to the strip tape S, and the groups of bags. Based on the distance between B and the group of bags B, the transport motor 41a is controlled. As described above, the control unit 90 grasps the feed amount by taking the pulse of the transport motor 41a and controls the feed amount of the strip tape S. Further, the control unit 90 controls the operation of making the cut 45 a in the strip tape S by the cutter 45 and the operation of opening the hole 46 a in the strip tape S by the punch 46 in accordance with the transport of the strip tape S.
[0067]
  The quantity of the group of bags B attached to the strip tape S is a quantity that becomes a display unit when exhibited at a retail store, and is, for example, 6 in the example shown in FIG.
[0068]
  The mounting pitch of the bags B with respect to the strip tape S is the distance between adjacent bags B in a group of bags B, from when the bag B is sealed to the strip tape S to when the next bag B is sealed to the strip tape S. This corresponds to the distance (transport pitch) that the strip tape S travels between. The controller 90 controls the transport motor 41a so that the strip tape S is regularly and continuously transported (or intermittently transported) so that the transport pitch is constant.
[0069]
  The distance between a group of bags B and a group of bags B is such that after the last bag B of the group of bags B is sealed to the strip tape S, the first bag B of the next group of bags B is sealed. This is equivalent to the distance traveled by the strip tape S until the time. This distance is normally set longer than the above-mentioned transport pitch. A slit 45a by the cutter 45 and a hole 46a by the punch 46 are formed in the long span portion S2 of the strip tape S between the group of bags B and the group of bags B (see FIG. 18). In addition, in the short span part S1 of the strip tape S formed by a normal conveyance pitch, the cut | interruption by the cutter 45 and the hole by the punch 46 are not normally formed.
[0070]
  The strip tape S to which the bag B is attached is brought into a state shown in FIG. 18, for example, by such transport control of the strip tape S and control of the cutter 45 and the punch 46. In these retail outlets or the like, the strip tape S is cut using the cut 45a to divide it into a group of bags B (six bags) and hooks in the store using the holes 46a. The display body (strip tape S with a group of bags B) can be hung on.
[0071]
  <Attachment control at the time of measurement defect and strip tape transport operation stop control>
  When receiving a measurement failure signal from the weighing machine 2, the control unit 90 continues the operation of the bag making unit 10 in order to ensure high speed, but has been manufactured by filling potato chips C of measurement failure. The bag B is not attached to the strip tape S, but is sorted out. At this time, part of the attaching operation and the strip tape conveying operation are temporarily not performed.
[0072]
  Of the attaching operations, the moving operation that is mechanically interlocked with the movement of the lateral seal mechanism 17 of the bag-making unit 10 is continuously performed, but the holding operation and the fixing operation are not performed. That is, for the poorly measured bag B, the holding mechanism 31 is moved to the holding point P1 by the moving mechanism 32, but the holding mechanism 31 does not operate and the bag B is not held. For this reason, the poorly weighed bag B is produced and discharged downward from the lateral seal mechanism 17 and then falls directly below. This bag B is distributed to the left or right by a distribution device (not shown). The sorting device prevents the bag B from being placed on the conveyor 85 by applying force to the bag B from the side by air or a sorting member and moving the bag B left or right.
[0073]
  Further, the fixing operation by the fixing mechanism 33 is stopped in response to the holding mechanism 31 not holding the poorly measured bag B, so that unnecessary heat and pressure are not applied to the strip tape S. Specifically, the control unit 90 stops the operation of the transport motor 41a to stop the transport of the strip tape S, stops the operation of the pressing cylinder 33b, and controls the pressing body 33c to wait on the upper side, and the solenoid 33e is operated and the strip tape S is pushed up by the overheat prevention plate 33d and separated from the heater 33a. As a result, an excessive amount of heat flows from the heater 33a into the strip tape S that is stopped from being transported, and a problem that the strip tape S is deteriorated can be suppressed.
[0074]
  <Control of the fixing mechanism when the fixing operation is suspended for other reasons>
  When the manufacture of the bag B is stopped due to the failure of the bag making unit 10, the weighing machine 2 in the previous process, or the machine in another process, the fixing mechanism 33 of the strip mounting unit 30 is also stopped. In such a case, the control unit 90 performs control so that the operation of the transport motor 41a is stopped to stop the transport of the strip tape S, and the operation of the pressing cylinder 33b is stopped and the pressing body 33c is on standby. Then, the solenoid 33e is actuated to push up the strip tape S by the overheat prevention plate 33d and separate it from the heater 33a. Furthermore, the control unit 90 performs control to lower the temperature, for example, 190 ° C. to 170 ° C. to 180 ° C. so that the temperature of the heater 33a is reduced while the transport of the strip tape S is stopped. By these controls, it is possible to suppress a problem that the strip tape S is deteriorated due to an excessive amount of heat flowing from the heater 33a into the strip tape S in which the conveyance is stopped.
[0075]
  [Features of the bag making and packaging machine 1 according to the first embodiment]
  (1)
  In a conventional bag making and packaging machine as disclosed in the pamphlet of International Publication No. 98/52823, a sealant layer is formed on the entire front side of a film that becomes a bag, and an adhesive sealant layer is also laminated on a strip tape. In addition, the bag is adhered to the strip tape by applying both heat and pressure on the two sealant layers. A sealant layer is formed on the entire surface of the strip tape so that a predetermined adhesive strength can be obtained no matter where the bag is brought.
[0076]
  However, although the sealant layer is formed on the entire surface of the strip tape side, the area actually used for bonding to the bag is limited, and most of the sealant layer having the adhesive property on the strip tape side is wasted. Yes. Spending such waste on strip tape just for the display of bags is not desirable for consumers who bear the costs indirectly.
[0077]
  In addition, it may be difficult to obtain a sufficient adhesive force only with the sealant layer on the strip tape side. In such a case, the sealant layer must be thickly applied to the strip tape.
[0078]
  On the other hand, in the bag making and packaging machine 1 according to the first embodiment, as shown in FIGS. 15 to 18, part of the front side of the film F (part of the part that becomes the upper end when the bag B is formed) ), The adhesive layer F2 is applied only, and the bag B and the strip tape S are adhered at the fixing point P2 by the adhesive layer F2. For this reason, it is not necessary to form a thick sealant layer on the strip tape S as in the prior art, and here the cost is reduced by forming a thin sealant layer (in addition, the strip tape S is used only for the base material). It is also possible to construct from
[0079]
  Thus, the adhesive layer F2 is provided on the bag B (film F) side here. Thus, when the adhesive tape sealant layer is not provided on the strip tape S, even if the position where the bag B is fixed is changed, the strip B can be reliably placed between the bag B pressed against the strip tape S and the strip tape S. The adhesive layer F2 is interposed, and the bag B is securely attached to the strip tape S. Further, the adhesive layer F2 is applied only to the bonding portion where the bag B is bonded to the strip tape S, and only the adhesive portion is provided with an adhesive effect, and is formed on the conventional strip tape S side. It is not necessary to provide the entire sealant layer. For this reason, it is not necessary to form a thick sealant layer on the entire surface of the strip tape S, and the cost of the entire display body in which a plurality of bags B are fixed to the strip tape S can be reduced.
[0080]
  (2)
  Here, as shown in FIG. 17 and FIG. 18, the adhesive layer F <b> 2 is applied to the film F so as to be positioned at the upper end where the lateral seal is applied when the bag B is formed. . The adhesive layer F2 is selected to have a higher melting temperature than the biaxially stretched polypropylene of the innermost layer (third layer) of the film F that melts during horizontal sealing.
[0081]
  Therefore, when the pair of sealing jaws 51 of the lateral sealing mechanism 17 sandwich the cylindrical film that becomes the bag B, the innermost layers of the film F are welded to each other, but the adhesive layer F2 applied on the front side of the film F is Does not melt.
[0082]
  However, the adhesive layer F <b> 2 is preheated by the heat from the sealing jaw 51. Here, the preheated adhesive layer F2 is further heated from the heater 33a at the fixing point P2, and exhibits a bonding force to bond the bag B and the strip tape S together. For this reason, the heater 33a requires less heat to be supplied to the adhesive layer F2 than when it is not preheated.
[0083]
  [Modification of First Embodiment]
  (A)
  In the above embodiment, the bag B is attached to one strip tape S, and a plurality of bags B are sent to the subsequent process in the state shown in FIG. 18, but as shown in FIG. It is also possible to configure the strip transport unit 41 and the fixing mechanism 33 so that the bag B is attached to the two strip tapes S11 and S12. In this case, it is necessary to apply the adhesive layer F2 of the film F to the left and right in accordance with the position of the strip tapes S11 and S12 with respect to the bag B.
[0084]
  (B)
  In the above embodiment, the heater 33a applies heat to the adhesive layer F2 of the bag B (film F) at the fixing point P2, but a heater is provided at the tip of the pressing body 33c, and the heater heats the adhesive layer F2. You may take the structure to add.
[0085]
  [Second Embodiment]
  In the first embodiment, the adhesive layer F2 is applied to the surface of the film F in advance, and an adhesive force is generated on the adhesive layer F2 by the heater 33a of the fixing mechanism 33 of the strip mounting portion 30, and the adhesion is performed. The bag B and the strip tape S are fixed by force.
[0086]
  On the other hand, in the second embodiment, instead of the strip mounting portion 30 having the fixing mechanism 33, a strip mounting portion 130 having the fixing mechanism 133 is provided, and a layer having adhesiveness to the film F or the strip tape S of the bag B is provided. The bag B and the strip tape S can be securely fixed even when the is not formed. Except for the strip attachment part 130 having the fixing mechanism 133 and the control part 190, the bag making and packaging machine of the second embodiment is substantially the same as the configuration of the bag making and packaging machine 1 of the first embodiment. In the bag making and packaging machine of the present embodiment, it is not necessary to use the film F having the surface coated with the adhesive layer F2 in advance, and the conventional film F can be used.
[0087]
  [Strip mounting part 130]
  The strip attachment portion 130 performs an attachment operation in which the produced bag B is gripped at a position where the sealing jaw 51 of the lateral seal mechanism 17 is released, and the bag B is moved obliquely downward and adhered to the strip tape S. . The strip attachment portion 30 includes a holding mechanism 31, a moving mechanism 32, and a fixing mechanism 133.
[0088]
  The holding mechanism 31 and the moving mechanism 32 are the same as in the first embodiment.
[0089]
    <Fixing mechanism 133>
  The adhering mechanism 133 is a mechanism for adhering the bag B to the strip tape S. As shown in FIGS. 20 to 22, the fixing mechanism 133 mainly includes a Peltier temperature adjusting body 133a, a pressing cylinder 33b, and a pressing body 33c. The hot-melt dispenser 135 is configured. As shown in FIG. 23, the control unit 190 also controls the Peltier temperature adjusting body 133 a and the hot melt discharge device 135 of the fixing mechanism 133 in addition to the function of the control unit 90 of the first embodiment.
[0090]
  The Peltier temperature adjusting body 133a has a Peltier element that adjusts the temperature of the portion where the tip portion of the pressing body 33c abuts or separates. The Peltier element is composed of two different types of semiconductors. When a current is passed, one side becomes cold and the other side becomes warm. Moreover, when the direction of the current is reversed, the polarity of the cold temperature is reversed. The control unit 190 supplies a current to the Peltier element, and here, a cooling effect is obtained. That is, the Peltier temperature adjusting body 133a is controlled by the control unit 190 so that the tip portion thereof is in a cooling state at a predetermined temperature.
[0091]
  The configurations of the pressing cylinder 33b and the pressing body 33c are the same as those in the first embodiment.
[0092]
  The hot melt discharge device 135 is a device for discharging hot melt onto the strip tape S. Hot melt is an adhesive mixture based on a 100% solids thermoplastic polymer that is solid at room temperature and does not contain solvent or water, so it can be heated and melted (usually 100-180 ° C). It changes to a fluid one. As shown in FIG. 22B, the hot melt dispenser 135 includes an applicator 135a, a hot melt gun 135b, a feed pipe 136a, a return pipe 136b, a high pressure air supply pipe 137, a solenoid valve 138, a high pressure And an air main pipe 139. The applicator 135a heats and melts the hot melt and incorporates a tank and a heater for storing the hot melt. The hot melt gun 135b is a device that discharges hot and melted hot melt from the tip, and is disposed obliquely so as to avoid the trajectory of the pressing body 33c, and the tip thereof is the cutter 45 of the strip tape S and the Peltier temperature adjusting body. It is suitable for the part between 133a. The feed pipe 136a sends hot melt from the applicator 135a to the hot melt gun 135b. The return pipe 136b returns the hot melt from the hot melt gun 135b to the applicator 135a. Two high-pressure air supply pipes 137, a solenoid valve 138, and a high-pressure air main pipe 139 supply high-pressure air for operation to the hot melt gun 135b.
[0093]
  [Control unit 190]
  The temperature and amount of hot melt discharged from the front end of the hot melt gun 135 b of the hot melt discharge device 135 to the strip tape S are controlled by the control unit 190. Specifically, the ON / OFF time of the hot melt gun 135b is controlled according to the input of the mounting pitch of the bag B to the strip tape S. Further, the control unit 190 controls the adhesive strength by adjusting the amount of hot melt discharged from the hot melt gun 135b (the amount applied to the strip tape S). Note that the hot melt is not applied to the entire surface of the strip tape S, but is applied only to the bonding site to which the bag B is attached.
[0094]
  <Control of attaching bag B to strip tape S>
  In the bonding operation by the fixing mechanism 133, the hot melt dispenser 135 is controlled to apply the hot-melted hot melt to the strip tape S on the front side of the fixing point P 2. Next, the control unit 190 controls the pressing cylinder 33b so that the hot melt of the strip tape S that has advanced to the upper side of the Peltier temperature adjusting body 133a is applied to the upper end of the bag B. The pressing body 33c is pressed. This pressing operation is performed until the hot melt applied to the strip tape S is solidified. Further, the timing of the pressing operation coincides when the bag B is moved to the fixing point P2 by the moving mechanism 32.
[0095]
  As a result, the upper end of the bag B and the strip tape S are sandwiched between the pressing body 33c and the Peltier temperature adjusting body 133a, and the cooled Peltier temperature adjusting body 133a promotes solidification of the hot melt. The bag B is bonded to the strip tape S via hot melt.
[0096]
  [Features of the bag making and packaging machine according to the second embodiment]
  (1)
  In a conventional bag making and packaging machine as disclosed in the pamphlet of International Publication No. 98/52823, a sealant layer is formed on the entire front side of a film that becomes a bag, and an adhesive sealant layer is also laminated on a strip tape. In addition, the bag is adhered to the strip tape by applying both heat and pressure on the two sealant layers. A sealant layer is formed on the entire surface of the strip tape so that a predetermined adhesive strength can be obtained no matter where the bag is brought.
[0097]
  However, an adhesive sealant layer must be provided on the entire surface of the strip tape side, which increases costs. In addition, a sealant layer that does not have adhesiveness at room temperature must be provided so that the transport of the strip tape is not hindered. Furthermore, since the strip tape and the bag are bonded by thermal welding, it is necessary to form a sealant layer on the outermost layer on the bag side.
[0098]
  On the other hand, in the bag making and packaging machine of the second embodiment, the hot melt dispenser 35 is provided, and the hot melt is applied only to the bonding portion of the strip tape S immediately before the operation of attaching the bag B to the strip tape S is performed. ing. Then, before the hot-melted hot melt is solidified, the pressing body 33c presses the upper end portion of the bag B and the hot-melt application portion of the strip tape S against the Peltier temperature adjusting body 133a, through the hot melt. The bag B is adhered to the strip tape S.
[0099]
  As described above, by providing the hot melt discharge device 35, the bag B can be bonded to an arbitrary attachment position of the strip tape S without providing an adhesive sealant layer on the strip tape S. . That is, it is not necessary to provide an adhesive sealant layer on the entire surface of the strip tape side, and the cost of the strip tape S is reduced. Further, on the bag B (film F) side, it is not necessary to provide a sealant layer as the outermost layer in order to adhere to the strip tape S, and if there is no other reason, the sealant layer of the bag B can be omitted. ing.
[0100]
  (2)
  Here, in addition to the arrangement of the hot melt discharge device 35, the Peltier temperature adjusting body 133a having a cooling function is provided as one member for sandwiching the upper end portion of the bag B and the strip tape S. As a result, the hot melt melted by heating and applied to the strip tape S is quickly solidified when the upper end portion of the bag B and the strip tape S are sandwiched. That is, the bonding time can be shortened, and the amount per unit time of the display body (the bag B bonded to the strip tape S) that can be produced by the bag making and packaging machine can be increased.
[0101]
  (3)
  In a conventional bag making and packaging machine as disclosed in the pamphlet of International Publication No. 98/52823, a sealant layer is formed on the entire front side of a film that becomes a bag, and an adhesive sealant layer is also laminated on a strip tape. In addition, the bag is adhered to the strip tape by applying both heat and pressure on the two sealant layers. In principle, the portion where the bag is attached to the strip tape is a portion where two or more films overlap (horizontal seal portion), but most of the other portions of the bag have a single film. Therefore, if a sealant layer is provided on the entire surface of the strip tape to heat-seal the bag, there is a risk that the part of one film is mistakenly adhered to the strip tape and the bag is torn when peeled off.
[0102]
  However, in the bag making and packaging machine according to the second embodiment, the hot melt dispenser 35 is configured to apply hot melt only to a necessary part (adhesion part) of the strip tape S. There is no problem that the strip tape S is bonded to the single sheet.
[0103]
  [Modification of Second Embodiment]
  (A)
  In the above embodiment, the hot melt is cooled by the Peltier temperature adjusting body 133a, but instead of this, or in addition to this, a separate cooling device for supplying cooling air or the like may be provided. It is also conceivable to incorporate a Peltier element on the pressing body 33c side to promote cooling.
[0104]
  (B)
  In the above embodiment, the hot melt is cooled by the Peltier temperature adjusting body 133a, but in addition to this, the hot melt immediately after it is applied to the strip tape S by the hot melt dispenser 135 (a smoothing member) It is also effective to increase the cooling effect by providing a member. The leveling member may be movable, or may be a fixed member that moves relative to the strip tape S as the strip tape S moves.
[0105]
  Thus, if the leveling member is further provided, the bonding time required for bonding the bag B and the strip tape S is further shortened.
[0106]
  (C)
  In the above embodiment, a bag making and packaging machine is shown in which the hot melt discharge device 135 is provided and the bag B and the strip tape S can be bonded by hot melt. By reversing the current flowing through the body 133a, the Peltier temperature adjusting body 133a can be used as a heating device. For example, when using a strip tape S in which an adhesive sealant layer is sufficiently applied to the entire surface, a command is sent to the control unit 190, the hot melt dispenser 135 is stopped, and the bag B and the strip tape S are sent. Can be switched to the method of fixing by thermal welding.
[0107]
  (D)
  In the above embodiment, a hot melt that is solid at room temperature is heated and melted and discharged and applied to the strip tape S. Instead of this, a spray adhesive comprising two liquids that undergoes a polymerization reaction and cures by mixing. It is also possible to generate an adhesive force at the adhesive site of the strip tape S using
[0108]
  For example, as shown in FIG. 24, an adhesive application device 235 including two spray guns 235a and 235b is provided in place of the hot melt dispenser 135, and two liquids are applied to a predetermined position of the strip tape S serving as an adhesion site. Spray. Then, the discharged two liquids are mixed on the surface of the strip tape S, and an adhesive force is generated to start curing. The bag B is bonded to the strip tape S if the upper end portion of the bag B is pressed against the portion by the pressing body 33c at the timing when the adhesive force is generated.
[0109]
  Here, since two liquids are sprayed from each of the spray guns 235a and 235b, the adhesive mixed on the strip tape S is formed to be thin and substantially uniform, and the bonding time until the bonding is completed is increased.
[0110]
  Moreover, since each of the two liquids does not have an adhesive force until mixing, the two liquids can be easily stored at room temperature.
[0111]
  (E)
  In the above embodiment, hot melt that is solid at normal temperature is heated and melted and discharged and applied to the strip tape S. Instead, a double-sided adhesive tape is supplied to the portion of the strip tape S where the bag B is attached. Thus, the double-sided adhesive tape can be used as an adhesive between the strip tape S and the bag B.
[0112]
  For example, a double-sided adhesive tape supply device 340 as shown in FIGS. 25 and 26 can be provided in place of the hot melt dispenser 135.
[0113]
  The double-sided adhesive tape supply device 340 is mainly composed of transport rollers 341, 342, 343, an adsorption unit 344, an air cylinder 345, a cutter 346, and a heater 347. The conveyance rollers 341, 342, and 343 convey the double-sided adhesive tape T fed from the tape roll 362a to the strip tape S side. The double-sided adhesive tape T is one in which heat-activatable adhesive surfaces on which adhesive force is generated by thermal activation are formed on both upper and lower surfaces. The adsorbing part 344 sucks and holds the upper surface of the front end portion of the double-sided adhesive tape T above the heater 347 and releases the suction holding after pressing the front end portion of the double-sided adhesive tape T against the strip tape S. The air cylinder 345 moves the suction portion 344 from above the heater 347 to above the strip tape S, and returns the suction portion 344 from above the strip tape S to above the heater 347. The cutter 346 separates the front end portion of the double-sided adhesive tape T from the subsequent portion at a point on the tape roll 362a side of the heater 347. The heater 347 heats the lower surface of the front end portion of the double-sided adhesive tape T.
[0114]
  Here, instead of the pressing body 33c of the above-described embodiment, a pressing heating body 333c having a built-in heater at the tip (turned by the operation of the pressing cylinder 33b) is employed.
[0115]
  The leading end of the double-sided adhesive tape T that has been transported up to the top of the heater 347 by the transport rollers 341, 342, and 343 is sucked and held by the suction portion 344. The lower surface of the tip of the double-sided adhesive tape T held by suction is heated by the heater 347 and is thermally activated so that the lower surface has an adhesive force. Further, the tip of the double-sided adhesive tape T is separated from the subsequent double-sided adhesive tape T by the cutter 346.
[0116]
  The tip piece of the double-sided adhesive tape T having an adhesive force on the lower surface is moved to the strip tape S side by the operation of the air cylinder 345 while being sucked and held by the suction portion 344, and finally the strip tape S Pressed against the top surface. As a result, the lower surface of the double-sided adhesive tape T from which the adhesive end of the tip piece is adhered is bonded to the upper surface of the strip tape S.
[0117]
  When the strip tape S is conveyed and the portion where the tip piece of the double-sided adhesive tape T is bonded reaches the position of the pressing table 333a, the bag B is placed so that the upper end of the bag B overlaps the upper surface of the tip piece of the double-sided adhesive tape T. Will move. And the press heating body 333c turns, and the front-end | tip part of the press-heating body 333c connects the strip tape S to which the upper end part of the bag B and the front-end | tip piece of the double-sided adhesive tape T were adhere | attached between the press stand 333a. Sandwich. Thereby, pressure and heat act on the upper end portion of the overlapping bag B and the strip tape S to which the end piece of the double-sided adhesive tape T is bonded. The heat is generated by a heater built in the pressing heater 333c. When the heat acts in this manner, the upper surface of the tip piece of the double-sided adhesive tape T is thermally activated and adheres to the upper end of the bag B. Thus, the bag B and the strip tape S are bonded to each other by the tip piece of the double-sided adhesive tape T.
[0118]
  Thus, the bag B and the strip tape S can be bonded even when a double-sided adhesive tape is used instead of hot melt. Further, the double-sided adhesive tape is easy to handle because it has no adhesive force until it is thermally activated.
[0119]
  In addition, it is possible to change to a configuration that uses a double-sided adhesive tape that generates adhesive force by peeling off the protective film, instead of the double-sided adhesive tape T on which both sides have heat-activated adhesive surfaces that generate adhesive force by thermal activation. is there. In this case, a mechanism for peeling off the protective film is required, but the heater can be eliminated.
[0120]
  (F)
  In the embodiment and the modifications (D) and (E), the adhesive such as hot melt is fixed to the strip tape S first, but the adhesive may be fixed to the bag B first.
[0121]
  [Other Embodiments]
  (1)
  In each of the above embodiments, the bag making and packaging machine has a function of attaching the bag B to the strip tape S. However, even when a device for attaching the bag B to the strip tape S is provided separately from the bag making and packaging machine, The present invention can be applied.
[0122]
  For example, as shown in FIG. 27, an ordinary bag making and packaging machine 501 is arranged under the weighing machine 2, and the bags B produced by the bag making and packaging machine 501 are transferred from the bag making and packaging machine 501 by conveyors 513 and 521. There is a system in which only the bag B that has been moved to a place distant from the plane and then passed the inspection by a weight inspection device (not shown) or the like is attached to the strip tape S above the conveyor 521.
[0123]
  In this system, the bag B that has passed the inspection is checked for posture and the like by the CCD camera 527, is held by the holding mechanism 522 having suction capability based on the result, and is carried to the fixing point P 502 by the moving mechanism 523. At the fixing point P <b> 502, the end portion of the bag B is sandwiched between the tip portion of the clamp member 562 and the heater 563 together with the strip tape S. Thereby, the bag B is attached to the strip tape S. The bag B that has not passed the inspection is carried to the defective product box 533 by the conveyor 521.
[0124]
  In the production line system shown in FIG. 27 as well, an adhesive layer is applied in advance to the film to be the bag B so that the formation of the sealant layer on the entire surface of the strip tape S can be omitted. An adhesive such as hot melt can be introduced between S and the bag B as much as necessary.
[0125]
  (2)
  In each of the above embodiments, the function of fixing the bag B to the strip tape S has been described. However, even if the object to be fixed to the strip tape S is a bare product itself, it is a product contained in a box or package. May be.
[0126]
【The invention's effect】
  In the present invention, when the adhesive layer is not provided on the tape, even if the position of the tape to which the bag is bonded is changed, the adhesive is surely interposed between the bag and the tape that contacts the tape. And the bag is securely attached to the tape.Further, in the dissolution treatment of the adhesive layer for sealing performed when the film is sealed to form a bag, the adhesive that bonds the bag and the tape does not dissolve, and the adhesive only has a preheating effect. Therefore, it is possible to prevent the adhesive from being melted in the hermetic seal of the film. And since some adhesive is preheated by the hermetic seal of the film, the burden on the heat treatment when bonding the bag to the tape is reduced.
[Brief description of the drawings]
FIG. 1 is a side view of a bag making and packaging machine according to an embodiment of the present invention.
FIG. 2 is a front view of a bag making and packaging machine.
FIG. 3 is a schematic perspective view of a bag making unit.
FIG. 4 is a schematic side view of a strip mounting portion and a strip transport portion.
FIG. 5 is a schematic front view of a strip attachment portion and a strip conveyance portion.
FIG. 6 is a schematic perspective view of a holding mechanism.
FIG. 7 is a diagram showing a power transmission path of a moving mechanism.
FIG. 8 is a diagram showing a structure related to driving of a pressing body of a fixing mechanism.
FIG. 9A is a schematic side view of a normal fixing mechanism.
(B) The side surface schematic diagram at the time of strip conveyance cancellation of the adhering mechanism.
FIG. 10 is a schematic side view showing one state of a strip attachment portion and a strip conveyance portion.
FIG. 11 is a side view of a tension adjustment mechanism.
FIG. 12 is a control block diagram.
FIG. 13 is a view showing the movement of the sealing jaw of the horizontal sealing mechanism.
FIG. 14 is a view showing another movement of the seal jaw of the lateral seal mechanism.
FIG. 15 is an external perspective view of a film fed out from a film roll.
FIG. 16 is a cross-sectional view showing a three-layer structure of a film.
FIG. 17 is a schematic perspective view showing a state of a film when formed into a cylindrical shape.
FIG. 18 is a perspective view showing a state of a bag attached to a strip.
FIG. 19 is a perspective view showing a state of a bag attached to a strip in a modified example.
FIG. 20 is a schematic side view of a strip mounting portion according to the second embodiment.
FIG. 21 is a schematic front view of a strip mounting portion according to the second embodiment.
FIG. 22A is a schematic side view when the fixing mechanism of the second embodiment is fixed.
(B) The side schematic diagram before the adhering operation | movement of the adhering mechanism which illustrated the hot-melt dispenser in 2nd Embodiment.
FIG. 23 is a control block diagram according to the second embodiment.
FIG. 24 is a schematic side view of a fixing mechanism illustrating an adhesive application device according to a modification (D) of the second embodiment.
FIG. 25 is a schematic front view of a strip attachment portion illustrating a double-sided adhesive tape supply device according to a modification (E) of the second embodiment.
FIG. 26 is a schematic side view of a fixing mechanism illustrating a double-sided adhesive tape supply device according to a modification (E) of the second embodiment.
FIG. 27 is a side view showing an apparatus for attaching a bag to a strip tape according to another embodiment (1).
[Explanation of symbols]
    1 Bag making and packaging machine (Exhibitor manufacturing equipment)
  33 Adhering mechanism (pressing mechanism; welding mechanism)
  33a heater
  33c Pressing body
  41 Strip transport section (tape feeding mechanism)
  42 Strip roll holder (tape feeding mechanism)
133 Adhering mechanism (pressing mechanism)
133a Peltier temperature adjustment body (temperature adjustment member)
190 Control unit (switching means)
235 Adhesive application device
333a Press stand (pressing mechanism)
333c Press heating body (pressing mechanism)
  B Bag (goods)
  F film
  F2 Adhesive layer (adhesive part; adhesive)
  S Strip tape (tape)
  T Double-sided adhesive tape (adhesive part)

Claims (3)

A bag formed by forming a film into a cylindrical shape, filling the inner space with an article to be packaged, and applying a pressure and heat to perform a hermetic seal;
A tape to which the bag is adhered;
An adhesive that is preliminarily applied to a part of the surface of the film before being formed into a cylindrical shape, is located at an adhesion site to the tape of the bag, and is heated to express an adhesive force ;
With
The adhesive is applied to a part of the surface located on the back side of the back seal portion of the film to which the hermetic seal is applied, and is provided on the back seal portion of the film for the hermetic seal. The melting temperature is higher than the melting temperature of the adhesive layer for sealing,
An exhibit capable of exhibiting the bag by hanging the tape. An exhibit manufacturing apparatus for manufacturing the exhibit according to claim 1 ,
A tape feeding mechanism for feeding out the tape;
A welding mechanism that heats the adhesive applied to the film and applies a force so that the adjacent bag and the tape are in close contact with each other through the adhesive applied to the film;
Exhibit body manufacturing equipment with An exhibit body manufacturing method for manufacturing the exhibit body according to claim 1,
A first step of applying the adhesive to the film;
A second step of applying a force so that the adjacent bag and the tape are in close contact with each other via the adhesive at the bonding site;
A display body manufacturing method comprising:

Images