JP4639039B2 - Exhibits and packaging equipment - Google Patents

Description

  The present invention relates to an exhibition body and a packaging device, and more particularly to an exhibition body in which a plurality of bags, which are products to be exhibited, are attached to a belt.

  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.

It has been proposed that such a bag making and packaging machine be added with a function of fixing the manufactured bag to the belt (see, for example, Patent Documents 1 to 3). In the devices disclosed in these documents, the bag is fixed to the band with a little space. In this way, a plurality of bags wrapping snacks and the like can be easily displayed by suspending the end of the belt at a retail store or the like.
JP-T 9-508879 U.S. Pat. No. 3,864,895 International Publication No. 98/52823 Pamphlet

  In each of the above devices (packaging machines), an exhibit in which a plurality of bags are fixed to a belt is manufactured. Since it is necessary for the exhibit to be finally displayed in a store or the like, a hole that can be hooked on a display rod or hook for display is usually formed. For example, in the display body of Patent Document 1, one hole is formed in the uppermost part of the belt. When the hole of this belt is hooked on an exhibition bar or the like, the exhibition body is suspended from there.

  In this way, the display state in which the hole at the top of the belt is hooked on an exhibition rod or the like and the display is suspended is initially a state in which many bags are fixed from the top to the bottom of the belt. As the product purchaser peels off the bag from the band, the bag on the upper side of the band is gradually removed and the bag is fixed only on the lower side of the band. Go. Then, the display looks bad. In addition, depending on the hanging position (height position) of the display body, there is a problem that the bag remains in a low position where the bag of the display body cannot be taken unless the product purchaser bends.

  An object of the present invention is to provide an exhibit that can improve its appearance even after an upper bag of a plurality of bags of the exhibit is removed, and a packaging device that makes the exhibit. .

The display body which concerns on Claim 1 is provided with the strip | belt body and the some bag attached by welding in the aspect which overlaps with the strip | belt body mutually . The bag is a product purchased by the purchaser. The band has a hanging portion for hanging the entire display body for each bag.

  Here, the band body has a plurality of suspension parts (holes or the like) conventionally provided only at the upper part of the band body. For example, a plurality of holes or cuts are formed in the band, and the holes and cuts are defined as the suspended portions. Further, for example, a plurality of hooking members (rings, hooks, etc.) can be attached to the band, and these can be used as a suspended portion.

  In this way, since the belt body has a plurality of hanging parts, the hanging object is first suspended using a certain hanging part, and the bag attached to the upper side of the belt body is removed. It is possible to change the hanging position of the exhibit using different hanging parts. And by changing the hanging position of the exhibit, it is possible to maintain a good appearance in the exhibition. For example, when the upper bag is removed and only the lower bag remains in the band, change it to the lower part of the upper part of the band or the upper part of the band. It is conceivable to use a suspending portion at the center of the band in addition to the suspending portion. In this way, the height position of the remaining bag is raised, the appearance is improved, and a merit that a person who purchases the bag can easily take the remaining bag on the belt can be expected.

In other inventions, the number of bags and the number of hanging parts do not necessarily coincide with each other, and the number of hanging parts may be one for every two bags, or every three bags. The hanging part may be a single ratio.

The display body according to claim 2 is the display body according to claim 1, wherein the hanging portion is a belt that can be used to resuspend the entire display body after a part of the plurality of bags is removed. A hole or cut formed in the body.

  Here, the suspended portion is made to appear by a simple method of forming a hole or a notch in the band. Therefore, the cost for exhibition can be suppressed.

  In addition, the hole or notch formed in the band may be formed in the band in advance before attaching the bag, or may be formed in the band after attaching the bag.

  The display body according to claim 3 is the display body according to claim 1 or 2, wherein the number of the suspended portions is the same as the number of bags.

  Since there are as many hanging parts as the number of bags, the hanging part used to suspend the exhibit can be changed every time one bag is removed from the belt. It is possible to improve the appearance.

  A display body according to a fourth aspect is the display body according to any one of the first to third aspects, wherein the belt further has a cut line at a portion which is on the upper side of the suspended portion during the display.

  Here, since there is a tear line above the hanging part, the unnecessary part of the belt body from which the bag has been removed is cut off and the display body is suspended by the hanging part located at the top of the belt body. It becomes possible. As described above, since the unnecessary portion of the belt can be separated, the appearance of the display state of the display body can be improved.

  A packaging device according to a fifth aspect includes a bag-making unit that manufactures a bag and an attachment unit that manufactures an exhibit. The mounting portion manufactures the display body according to any one of claims 1 to 4 by attaching the bag to the belt.

  In the present invention, since the band has a plurality of hanging parts, the display body is first suspended using a certain hanging part, and the bag attached to the upper side of the band is removed. It is possible to change the hanging position of the exhibit using different hanging parts. Then, by changing the hanging position of the display body, it is possible to maintain a good appearance in the display.

[Overview]
A side view and a front view of a vertical bag making and packaging machine 1 according to an 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 a strip (band) to make an exhibit.

  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.

  The bag making and packaging machine 1 includes a bag making section 10, a film roll holding section 22, a strip mounting section 30, a strip transport section 41, a strip roll holding section 42, a transport conveyor 85, and a control section 90 (FIG. 11). 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.

[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.

  Further, a film remaining amount detection sensor 23 (see FIG. 11) 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.

[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 tubular shape, and a tubular film F (hereinafter referred to as a tubular 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.

<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.

<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.

<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.

<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 lateral seal mechanism 17 has a pair of seal jaws (seal members) 51 that incorporate a 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. 11), 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.

  A cutter (not shown) is built in one of the pair of sealing jaws 51. This cutter plays a role of separating the bag B and the subsequent cylindrical film at the center position in the height direction of the horizontal seal portion by the seal jaw 51.

  12 and 13 show a lateral sealing operation by the pair of sealing jaws 51. FIG. In the example of the horizontal sealing operation shown in FIG. 12, the sealing jaw 51 that has swung sandwiches the cylindrical film at the point P10 (see FIGS. 12A and 12B), 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 nipping at point P11 (see FIGS. 12 (c) and 12 (d)). 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. 9).

  FIG. 13 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 above-described point P10 (see FIGS. 13A and 13B), and moves downward as it is in the tubular 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). 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 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.

  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. 12 and 13, 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, as shown in FIGS. 4, 12, and 13, the point at which the pair of seal jaws 51 releases the cylindrical film that forms the bag B is the bottom of the pair of seal jaws 51 while holding the cylindrical film. Regardless of the distance traveled, the point P11 is fixed.

[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 seal jaw 51 of the lateral seal mechanism 17 is released, and the bag B is moved obliquely downward and welded to the strip S. The strip attachment part 30 includes a holding mechanism 31, a moving mechanism 32, and a fixing mechanism 33.

<Holding mechanism 31>
The holding mechanism 31 has a holding point P1 (see FIG. 9) on the basis of the 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.

  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.

<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 9) 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. Accordingly, the moving mechanism 32 allows the bag B (see the upper bag B in FIG. 4) attached to the strip S to be discharged from the lateral seal mechanism 17 downward (the upper portion in FIG. 9). The bag B is moved to a position where it does not interfere with the bag B).

  When the bag B discharged downward from the lateral seal mechanism 17 interferes with the bag B attached to the strip S, the lateral seal operation in the bag making section 10 (lateral seal mechanism 17) becomes unstable. In order to avoid such interference, here, the holding point P1 and the fixing point P2 are shifted in the front-rear direction. Specifically, the holding point P1 and the fixing point P2 are shifted in the front-rear direction by a predetermined distance in consideration of the maximum thickness of the bag to be handled (the size of the bag in the front-rear direction), the posture of the bag B at the time of attachment, and the like. ing.

  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.

  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.

  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.

  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.

  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).

  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 according to 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.

  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. 11) 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.

  With this configuration, the moving mechanism 32 causes the holding mechanism 31 to be below the sealing jaw 51 as shown in FIG. 9 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.

<Fixing mechanism 33>
The fixing mechanism 33 welds the bag B to the strip S at a 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. The heater 33a is a normally energized heater having 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).

  Although the illustration of the bag B is omitted in FIG. 8, the fixing mechanism 33 is in a state where the strip S and the laterally sealed upper end portion of the bag B exist between the heater 33 a and the pressing body 33 c (see FIG. 4). ), The strip S and 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 S for a time of about 200 msec. Thereby, the upper end part of the bag B is welded to the strip S.

[Strip roll holder 42]
The strip roll holding unit 42 holds a strip roll 42 a for supplying the strip S to the space above the heater 33 a of the fixing mechanism 33. The strip roll 42a is formed by winding the strip S.

  Further, a strip remaining amount detection sensor 43 (see FIG. 11) for detecting the remaining amount of the strip 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 or not the strip S remains on the strip roll 42a by detecting the presence of the strip 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.

[Strip transport section 41]
The strip transport unit 41 transports the strip 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 S hung on the driving rollers 41c and 41d is sent above the heater 33a of the fixing mechanism 33. Go. Along with this, the strip roll 42a that feeds the strip S to the drive rollers 41c and 41d by a plurality of rollers feeds the strip S wound one after another by rotating.

  The transport motor 41a for transporting the strip S is a servo motor. A 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 S.

  Further, the tension of the strip S fed out from the strip roll 42 a to the fixing mechanism 33 and conveyed is adjusted by the tension adjusting mechanism 44. As shown in FIG. 10, 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 passing the strip S over the three rotors 44a, 44f and 44b in order, the arm member 44c and the roller 44f pull the strip S with a predetermined force, and the tension of the strip S is maintained within a predetermined range. . Thereby, the looseness and meandering of the strip S are suppressed.

  Further, a cut line or a hole can be formed in the strip S sent from the strip conveying unit 41 to the fixing mechanism 33, so that a gap between the driving roller 41c of the strip conveying unit 41 and the heater 33a of the fixing mechanism 33 can be formed. Is provided with a cutter 45 and a punch 46 (see FIG. 8). The cutter 45 can form a tear line 45a as shown in FIG. Further, the cutter 45 can also form a tear line 45b as shown in FIG. The punch 46 can form a hole 46a in the strip S as shown in FIG. Moreover, the punch 46 can also form the hole 46b (hole 46b1-46b5 in FIG. 16 and FIG. 17) in the strip 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 S with respect to the heater 33a and the pressing body 33c of the fixing mechanism 33.

[Conveyor 85]
The transport conveyor 85 discharges a series of bags B whose upper ends are welded to the strip S as shown in FIG. As shown in FIG. 11, the transport conveyor 85 is continuously operated at a constant speed by a transport motor 85a (can be operated intermittently).

[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. 11, 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.

  The user can use 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 S, and the quantity of the group of bags B to be attached to the strip S. The setting items such as the mounting pitch of the bag B with respect to the strip S and the distance between the group of bags B and the group of bags B are input. In addition, the user or the like performs setting input as to whether or not a hole is made by the punch 46 at every attachment pitch of the bag B, and whether or not a cutting line is made by the cutter 45 at a position close to the hole.

  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 S will be described.

<Control of attachment of bag B to strip S>
The strip attachment portion 30 attaches the bag B to the strip 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.

  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.

  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.

  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 S and the upper end of the bag B are sandwiched between the pressing body 33c and the heater 33a, and the bag B is welded to the strip S by the heat of the heater 33a and the pressure by the pressing body 33c. The timing of this pressing (the timing of welding) 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 degree of fixation of the bag B to the strip S is within an appropriate range. It is adjusted to enter.

  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.

<Strip transport control, cutter and punch control>
The strip transport unit 41 includes the number of bags B manufactured per unit time input and set by the user, the number of groups of bags B attached to the strip S, the mounting pitch of the bags B with respect to the strip S, the group of bags B, Based on the distance between the group of bags B and the like, 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 S. Further, the control unit 90 controls the operation of putting the cut lines 45 a and 45 b in the strip S by the cutter 45 and the operation of opening the holes 46 a and 46 b in the strip S by the punch 46 in accordance with the conveyance of the strip S.

  The quantity of the group of bags B attached to the strip S is a quantity that becomes a display unit when exhibited in a retail store, and is, for example, 6 in the example shown in FIG.

  The mounting pitch of the bag B with respect to the strip S is the distance between adjacent bags B in a group of bags B, and the strip between the time when the bag B is sealed to the strip S and the time when the next bag B is sealed to the strip S This corresponds to the distance (transport pitch) that S travels. The controller 90 controls the transport motor 41a so that the strips S are regularly and intermittently transported so that the transport pitch is constant.

  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 S, the first bag B of the next group of bags B is sealed. This corresponds to the distance traveled by the strip S. This distance is normally set longer than the above-mentioned transport pitch. A cut line 45a by the cutter 45 and a hole 46a by the punch 46 are formed in the long span portion S2 of the strip S between the group of bags B and the group of bags B (see FIG. 14). In addition, in the short span part S1 of the strip S formed with a normal conveyance pitch, the cut line by the cutter 45 and the hole by the punch 46 are not normally formed. However, depending on the setting, it is also possible to form a cut line by the cutter 45 and a hole by the punch 46 in the short span portion S1 of the strip S. In this case, as shown in FIG. 15, a hole 46b and a cut line 45b are formed in each short span portion S1.

  The strip S to which the bag B is attached is brought into a state shown in FIG. 14, for example, by such transport control of the strip S and control of the cutter 45 and the punch 46. In these retail outlets and the like, the strips S are cut using the cut lines 45a to divide each group of bags B (six bags) into holes in the store using holes 46a. An exhibit (strip S with a group of bags B) can be suspended.

  Further, when the strip S with the bag B in the state shown in FIG. 15 is cut using the cut line 45a, the bag B attached to the strip S (FIGS. 16A and 17A) is used. The number of B1 to B6) and the number of holes 46a and 46b (holes 46b1 to 46b5 in FIG. 17) formed in the strip S are the same six. As shown in FIG. 16A, such an exhibit is also suspended by passing the hole 46a of the strip S through the display hook H.

  When the purchaser of the bag B which is a product removes the bag B from the display body in the display state shown in FIG. 16A, only the lower part of the strip S as shown in FIG. 16B. The bag B remains in the state. Specifically, in the display body in the state shown in FIG. 16B, the bags B1 to B4 are removed from the strip S by the product purchaser or the like, and the two bags B5 and B6 remain at the bottom.

  In the display state shown in FIG. 16 (b), holes 46b1, 46b2, 46b3 and 46b4 exist in the portion above the bag B5 of the strip S in addition to the hole 46a.

  Therefore, the display body in which the store clerk or the like has a poor appearance in the state of FIG. 16B can be shifted to a good-looking display state as shown in FIG. 16C. Specifically, in order to suspend the display body from the hook H by the hole 46b4 immediately above the uppermost bag B5 among the remaining ones, the strip S is first used by using the cut line 45b4 immediately above the hole 46b4. Is then cut off, and then the separation part on the strip S including the hole 46a is discarded, and finally the lower part of the strip S where the bags B5 and B6 remain is suspended from the display hook H by the hole 46b4. As a result, as shown in FIG. 16 (c), the display body with fewer remaining bags B is displayed in a good-looking manner, and the bags B5 and B6 move upward, so that the product purchaser or the like It becomes easy to pick up the bag B.

  In addition, instead of performing the separation work using the cut line 45b4 in the display body in the display state as shown in FIG. 16B, a method for improving the appearance of the display body without the separation work as shown in FIG. It can also be taken. When this method is used, it is not necessary to form the cut line 45b such as the cut line 45b4 in the short span portion S1 of the strip S. The display body shown in FIG. 17A is in the same display state as the display body shown in FIG. 16B, and the bags B1 to B4 indicated by dotted lines are the removed bags B. That is, in the display body shown in FIG. 17A, two bags B5 and B6 remain on the lower side, and in the portion above the bag B5 of the strip S, in addition to the hole 46a, the hole 46b1 is provided. , 46b2, 46b3, 46b4. When the lower part of the strip S and the bags B5 and B6 are lifted by holding the lower part of the hole 46b3 of the strip S and the hole 46b3 is passed through the display hook H and then the hole 46b4 is passed through the hook H, the display The body is in the display state shown in FIG. As a result, the display body with fewer remaining bags B is displayed with good appearance, and the bags B5 and B6 move upward, making it easier for the product purchaser to pick up the bags B.

<Attachment control at the time of measurement failure and stripping control of strip transport operation>
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 S, but is sorted out. At this time, a part of the attaching operation and the strip conveying operation are temporarily not performed.

  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.

  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 S. Further, the intermittent conveyance of the strip S by the strip conveyance unit 41 is also stopped at the timing when the poorly weighed bag B comes so that the attachment pitch of the bags B does not deviate.

[Characteristics of exhibits manufactured by the bag making and packaging machine 1]
(1)
In the exhibit shown in FIGS. 15 and 16 (a), the strip S has a plurality of holes 46a provided in the upper portion of the strip S in the exhibit shown in FIG. More specifically, the strip S of the exhibit shown in FIGS. 15 and 16A is provided with holes 46b (FIG. 17A) formed between the bags B and B in addition to the holes 46a. ) Holes 46b1 to 46b5).

  As described above, since the strip S has a plurality of holes that can be used for suspension, the display body shown in FIGS. 15 and 16 (a) uses the uppermost hole 46a at the initial stage. After suspending and removing the bag B attached to the upper side of the strip S, it is possible to change the suspending position using different holes 46b1 to 46b5. And the appearance in an exhibition can be kept favorable by changing the hanging position of the exhibit (see FIG. 16C or FIG. 17B).

(2)
In the display body manufactured by the bag making and packaging machine 1, the display body can be suspended from the display hook H or the like by a simple method of forming a hole in the strip S with the punch 46. Therefore, the exhibit can be manufactured at a relatively small cost.

(3)
In the exhibit shown in FIG. 15 and FIG. 16 (a), the same number (six) of holes 46a and 46b as the number of bags B exist, so that each time one bag B is removed from the strip S, the exhibit is suspended. The hole used for lowering can be changed. Therefore, it is possible to improve the appearance of the display state of the exhibit in detail.

(4)
In the exhibit shown in FIG. 15 and FIG. 16A, the cut lines 45b are formed on the holes 46b formed in the short span portion S1 of the strip S (in the display state). Thus, since the cut line 45b is formed on each hole 46b, as shown in FIG.16 (b) and FIG.16 (c), the part which became unnecessary of the strip S from which the bag B was removed It is possible to suspend the display body through the hole 46b4 in the part that has been cut out and becomes the uppermost part of the strip S. As described above, when the unnecessary portion of the strip S is cut off, the appearance of the display state of the exhibit is greatly improved.

  Even when the cut line 45b is not formed in the strip S, if the plurality of holes are formed in the strip S, the appearance of the display body can be improved in a form as shown in FIG.

[Modification]
(A)
In the above embodiment, the holes 46 a and 46 b are formed in the strip S by the punch 46 in order to suspend the display body from the display hook H. Instead of forming such holes, it is conceivable to form holes having other shapes or to form cuts in the strip S.

  Specifically, the strip S has notches 101 as shown in FIG. 18 (a), notches 111 to 113 as shown in FIG. 18 (b), or notches 121 to 124 as shown in FIG. 18 (c). It is conceivable to form. If these cuts are formed in the strip S by changing the shape of the blade of the punch 46, the display body is suspended from the hook H by pushing or breaking the inside of the cut of the strip S with the hook H for display. Can be lowered.

  Further, a hole 131 having a shape as shown in FIG. 19A, a notch 141 as shown in FIG. 19B, a notch 151 as shown in FIG. 20A, or FIG. It is conceivable to form a notch 161 as shown in FIG. Even when these holes or cuts are formed in the strip S, the display body can be suspended from the hook H.

(B)
In the above embodiment, the holes 46 a and 46 b are formed in the strip S by the punch 46 in order to suspend the display body from the display hook H. Instead of forming such holes, it is also conceivable to attach a hook member (ring, hook, etc.) to the strip S for hooking to the display hook H.

(C)
In the above embodiment, the holes 46a and 46b are formed in the strip S by the punch 46. However, if there is no change in the positions of the holes 46a and 46b or the mounting pitch of the bag B, the holes 46a and 46b are previously formed. It is also conceivable to feed the strip S from the formed strip roll.

(D)
In the above embodiment, as shown in FIG. 15, the holes 46 b are formed in each short span portion S <b> 1, but there are two bags B depending on the actual state of the correction work of the display state of the exhibit in the store where the exhibition is performed. It is also conceivable to form one hole every time one or two are attached. In this case, since every second or every third hole is formed in the short span portion S1, the display state of the display body is corrected every time two or three bags B are removed from the display body. It will be.

  The exhibit according to the present invention uses a certain hanging part to hang the exhibition object first, and uses a different hanging part after the bag attached to the upper part of the belt is removed. It is possible to change the hanging position of the exhibition body, and it is useful as an exhibition body that is required to maintain a good appearance in the exhibition.

It is a side view of the bag making packaging machine concerning one embodiment of the present invention. It is a front view of a bag making packaging machine. It is a schematic perspective view of a bag making part. It is side surface schematic of a strip attachment part and a strip conveyance part. It is the front schematic of a strip attachment part and a strip conveyance part. It is a schematic perspective view of a holding mechanism. It is a figure which shows the power transmission path | route of a moving mechanism. It is a figure which shows the structure regarding the drive of the press body of an adhering mechanism. It is a side schematic diagram showing one state of a strip attachment part and a strip conveyance part. It is a side view of a tension adjustment mechanism. It is a control block diagram. It is a figure which shows a motion of the seal jaw of a horizontal seal mechanism. It is a figure which shows the other motion of the seal jaw of a horizontal seal mechanism. It is a perspective view which shows the state of the bag attached to the strip. It is a perspective view which shows the state of the bag attached to the strip in which the several hole was formed. It is a figure which shows the transfer of the display state of the display body with which the bag was attached to the strip. It is a figure which shows the other transition of the display state of the display body with which the bag was attached to the strip. It is a figure which shows the shape of the notch | incision formed in the strip in a modification. It is a figure which shows the shape of the hole or notch which is formed in the strip in a modification. It is a figure which shows the shape of the notch | incision formed in the strip in a modification.

1 Bag making and packaging machine (packaging equipment)
10 Bag making part 30 Strip attachment part (attachment part)
45b Cut line (cut line)
46a hole (hanging part)
46b hole (lower part)
101 Notch 111-113 Notch 121-124 Notch 131 Notch 141 Notch 151 Notch 161 Notch B (B1-B6) Bag S Strip

Claims (5)

Obi body,
A plurality of bags attached by welding in such a manner as to overlap each other on the belt,
An exhibit comprising
The bag is a product purchased by the purchaser,
The display body, wherein the belt body has a hanging portion for hanging the entire display body for each of the bags. The hanging portion is a hole or a notch formed in the belt body that can be used for rehanging the entire display body after a part of the plurality of bags is removed .
The display object according to claim 1. The number of the hanging parts is the same as the number of the bags,
The display object according to claim 1 or 2. The band further has a tear line in a portion that is on the upper side of the hanging portion at the time of exhibition,
The exhibit according to any one of claims 1 to 3. A bag making section for manufacturing bags;
The attachment part which attaches the said bag to the said strip | belt body, and manufactures the display body in any one of Claim 1 to 4;
Packaging equipment with

Images