WO2021241035A1 - Content-filled film packing bag, vertical-type bag filling and packing device, method for manufacturing content-filled film packing bag - Google Patents

Content-filled film packing bag, vertical-type bag filling and packing device, method for manufacturing content-filled film packing bag Download PDF

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Publication number
WO2021241035A1
WO2021241035A1 PCT/JP2021/015127 JP2021015127W WO2021241035A1 WO 2021241035 A1 WO2021241035 A1 WO 2021241035A1 JP 2021015127 W JP2021015127 W JP 2021015127W WO 2021241035 A1 WO2021241035 A1 WO 2021241035A1
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WO
WIPO (PCT)
Prior art keywords
seal
film
preheat
bag
ultrasonic
Prior art date
Application number
PCT/JP2021/015127
Other languages
French (fr)
Japanese (ja)
Inventor
鶴田正貴
山口晶
神澤洋樹
横山隆之
Original Assignee
オリヒロエンジニアリング株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オリヒロエンジニアリング株式会社 filed Critical オリヒロエンジニアリング株式会社
Priority to CN202180006901.XA priority Critical patent/CN114746345A/en
Publication of WO2021241035A1 publication Critical patent/WO2021241035A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials

Definitions

  • the present invention relates to a film packaging bag containing contents, a vertical bag-making filling and packaging machine, and a method for manufacturing a film packaging bag containing contents.
  • Film packaging bags containing food are on the market. Such a film packaging bag is called a pouch bag.
  • a heat seal that heats and welds the film has been used.
  • ultrasonic seals have been developed in response to demands for efficiency and simplification of seal formation, stability of quality, and the like.
  • the ultrasonic seal also has various drawbacks.
  • the seal cannot be formed in a short time without softening the film. If the film has a step in the thickness direction, the seal cannot be formed.
  • a seal submerged seal
  • a seal defect or edge breakage is likely to occur.
  • steam explosion occurs at the time of welding, and seal defects such as pinholes and cracks occur.
  • An object of the present invention is to provide a film packaging bag containing contents, a vertical bag-making filling and packaging machine, and a method for manufacturing a film packaging bag containing contents, which can improve the efficiency of forming a seal portion and stabilize the quality.
  • An embodiment of the content-containing film packaging bag according to the present invention is a content-containing film packaging bag in which a fluid is sealed in a film packaging bag having a sealing portion in which films are welded to each other, and the sealing portion is formed between the films.
  • a first seal comprising a heat-welded preheat seal and an ultrasonic seal further ultrasonically welded.
  • the seal portion has a second seal including only a heat seal in which the films are heat-welded to each other, and the preheat seal is more than the second seal. It is characterized by low welding strength.
  • An embodiment of the content-containing film packaging bag according to the present invention is characterized in that the ultrasonic seal has a narrower width than the preheat seal.
  • An embodiment of the content-containing film packaging bag according to the present invention is characterized in that the width of the ultrasonic seal is 50 to 90% of the width of the preheat seal.
  • An embodiment of the content-containing film packaging bag according to the present invention is that the ultrasonic seal and the preheat seal are superposed on the outside of the film packaging bag, and only the preheat seal is arranged on the inside of the film packaging bag. It is characterized by.
  • An embodiment of the content-containing film packaging bag according to the present invention is characterized in that the first seal is arranged on opposite side sides of the outer periphery of the film packaging bag.
  • An embodiment of the vertical bag-making filling and packaging machine is a vertical bag-making filling and packaging machine that creates a film packaging bag and encloses a fluid, and transports a film that conveys a tube film downward.
  • the horizontal seal portion includes a preheat seal portion that heats and welds the tube film, and an ultrasonic seal portion that further applies ultrasonic waves to the preheat seal formed by the preheat seal portion to weld the film. It is characterized by being prepared.
  • An embodiment of the vertical bag-making filling and packaging machine includes a vertical sealing portion that heat-welds strip-shaped films to each other to form the tube film, and the heating time of the preheat sealing portion is set to the vertical sealing portion. It is characterized by being shorter than the heating time of.
  • An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the ultrasonic seal portion further cools and solidifies the preheat seal.
  • An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the ultrasonic sealing portion has a narrower sealing width than the preheat sealing portion.
  • the ultrasonic seal portion is formed so that the ultrasonic seal is symmetrically superimposed on the preheat seal formed by the preheat seal portion in the vertical direction. It is characterized by doing.
  • An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the ultrasonic seal portion has a non-seal forming region extending in the seal length direction at the center in the seal width direction.
  • An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the cutter portion cuts a portion of the horizontal seal formed by the horizontal seal portion corresponding to the non-seal forming region. ..
  • An embodiment of the method for manufacturing a film packaging bag containing contents according to the present invention is a method for manufacturing a film packaging bag containing contents in which a film packaging bag is manufactured and a fluid is enclosed, and the tube film is conveyed downward.
  • the horizontal sealing step includes a cutting step for separating, a preheat sealing step for heating and welding the tube film, and an ultrasonic wave for further applying ultrasonic waves to the preheat seal formed in the preheat sealing step. It is characterized by including a sealing process.
  • An embodiment of the method for producing a film packaging bag containing contents according to the present invention includes a vertical sealing step of heat-welding strip-shaped films to each other to form the tube film, and the preheat sealing formed by the preheat sealing step is a preheat sealing step. It is characterized by having a lower welding strength than the vertical seal formed in the vertical seal step.
  • the present invention it is possible to realize a film packaging bag containing contents, a vertical bag-making filling and packaging machine, and a film packaging bag containing contents, which can improve the efficiency of forming a seal portion and stabilize the quality.
  • FIG. 1 is a front view of a film packaging bag 100 containing contents.
  • the film packaging bag 100 is a so-called standing pouch type packaging body, and is manufactured by the vertical bag-making filling and packaging machine 1 described later.
  • the film packaging bag 100 is formed by sealing (heat welding, ultrasonic welding) the four sides of the strip-shaped film F.
  • the film packaging bag 100 has sealing portions on its four sides.
  • the seal portion includes a bottom seal 101, a bottom reinforcing seal 102, a top seal 103, and a side seal 104.
  • Film F is a laminated film in which high-strength films such as nylon and polyester are laminated.
  • the film F has a sealing layer on the inner surface, and is laminated so that the inner surfaces are welded to each other but the outer surfaces are not welded to each other.
  • the film packaging bag 100 is filled with the contents X such as food (food and drink).
  • the content X is a fluid such as a liquid. Or it is a mixture of fluid and solid.
  • the fluid also includes liquids, jellies and pastes.
  • the film packaging bag 100 can stand on its own (stand up) in a state where the content X is filled.
  • the vertical direction when the film packaging bag 100 is self-supporting is also referred to as a vertical direction.
  • the width direction when the film packaging bag 100 is self-supporting is also referred to as a lateral direction.
  • the inner side of the film packaging bag 100 is referred to as the inner side
  • the outer side (end side) is referred to as the outer side.
  • the directions orthogonal to each other in the vertical and horizontal directions are called the thickness direction.
  • the extending direction, the width direction, and the thickness direction of the side seal 104 correspond to the seal length direction, the seal width direction, and the rule thickness direction, respectively.
  • Bottom seal 101, bottom reinforcement seal 102 The bottom seal (seal portion, second seal, vertical seal) 101 is formed on the lower side of the film packaging bag 100 by the bottom seal portion 21 described later.
  • the bottom reinforcing seals (seal portion, second seal, vertical seal) 102 are formed at both ends of the lower side of the film packaging bag 100 by the second bottom reinforcing seal portion 22 described later.
  • a gusset portion 100a in which the film F is double-folded (M-shaped) is provided on the lower end side of the film packaging bag 100.
  • the gusset portion 100a includes two outer folding portions in which the inner surfaces of the film F are in close contact with each other, and one inner folding portion in which the outer surfaces of the film F are in close contact with each other. An inner fold is placed between the two outer folds.
  • the gusset portion 100a is provided by forming the bottom seal 101 and the bottom reinforcing seal 102 in a state where the film F is folded into an M shape.
  • the bottom seal 101 welds the two outer folds of the gusset portion 100a, respectively.
  • the bottom reinforcing seal 102 welds the lower ends of the side sides of the film packaging bag 100 from both ends of the gusset portion 100a.
  • the bottom reinforcing seal 102 extends from both ends of the bottom seal 101 toward the side seal 104 via the inwardly folded portion.
  • the gusset portion 100a has a bifurcated shape.
  • the lower end of the film packaging bag 100 can be opened and closed starting from the inner folding portion of the gusset portion 100a.
  • the gusset portion 100a of the film packaging bag 100 is opened, the thickness of the lower portion of the film packaging bag 100 increases.
  • the film packaging bag 100 can stand on its own (standing) with the gusset portion 100a at the bottom.
  • the gusset portion 100a of the film packaging bag 100 is closed, the thickness of the lower portion thereof becomes thin. This makes it easier for the film packaging bag 100 to be placed flat (stacked).
  • the top seal (seal portion, second seal, vertical seal) 103 is formed at the upper end of the film packaging bag 100 by the top seal portion 24 described later.
  • the top seal 103 welds the upper side of the film packaging bag 100 and forms the peripheral portion of the drinking spout of the film packaging bag 100.
  • a notch N for tearing is provided on the upper end side of the top seal 103.
  • the film F is cut laterally from this notch N as a starting point, and the upper end side of the top seal 103 is cut off. As a result, a drinking spout appears at the upper end of the film packaging bag 100.
  • the side seals (seal portion, first seal, horizontal seal) 104 are formed at both ends of the film packaging bag 100 in the lateral direction by the horizontal seal portions 60 described later.
  • the side seals 104 are arranged on opposite side sides of the outer circumference of the film packaging bag 100, respectively.
  • the side seal 104 welds the side sides of the film packaging bag 100.
  • the side seal 104 extends in the vertical direction and connects the top seal 103 and the bottom reinforcing seal 102.
  • the side seal 104 includes a preheat seal 105 and an ultrasonic seal 106.
  • the preheat seal 105 is obtained by heating the films F to each other and incompletely welding them.
  • the preheat seal 105 functions as a temporary fixing. That is, the welding strength is lower than that of the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103.
  • the preheat seal 105 may be destroyed (leaked). For example, gripping the film packaging bag 100 may destroy the preheat seal 105.
  • the ultrasonic seal 106 is obtained by applying ultrasonic waves to the preheat seal 105 to further weld the films F to each other.
  • the ultrasonic seal 106 is obtained by double welding the film F in the thickness direction of the film packaging bag 100. In the ultrasonic seal 106, the films F are sufficiently welded to each other.
  • the side seal 104 extends linearly along the vertical direction.
  • the seal width of the side seal 104 is constant (6.5 mm) in the vertical direction.
  • the seal width of the preheat seal 105 is equal to the seal width of the side seal 104.
  • the ultrasonic seal 106 has a narrower seal width than the preheat seal 105.
  • the ultrasonic seal 106 has a seal width of 5 mm, and the preheat seal 105 has a seal width of 6.5 mm.
  • the seal width of the ultrasonic seal 106 is preferably 50 to 90% of the seal width of the preheat seal 105.
  • the ultrasonic seal 106 is arranged so as to completely superimpose on the preheat seal 105.
  • the preheat seal 105 and the ultrasonic seal 106 are superposed on each other from the outside to the center of the side seal 104. Inside the side seal 104, only the preheat seal 105 is arranged. The preheat seal 105 protrudes 1.5 mm from the inside of the ultrasonic seal 106 in the seal width direction.
  • the side seal 104 since the side seal 104 has the preheat seal 105 and the ultrasonic seal 106, the drawbacks of ultrasonic welding can be compensated for by temporary welding while taking advantage of ultrasonic welding. Since the film F is softened by the formation of the preheat seal 105, the ultrasonic seal 106 can be formed in a short time. Even if there is a step in the thickness direction at the portion where the ultrasonic seal 106 is formed (the side side of the film packaging bag 100), the film F is softened by the formation of the preheat seal 105 and the step is eliminated. It can be formed well.
  • the ultrasonic seal 106 is often formed by a method called a submerged seal.
  • the ultrasonic seal 106 is formed in a state where the film F is filled with a fluid (content X). In such a case, poor sealing and broken edges are likely to occur.
  • the preheat seal 105 is formed prior to the formation of the ultrasonic seal 106, it is difficult for a seal defect or edge breakage to occur. Further, by forming the preheat seal 105, it is difficult for impurities to remain in the portion where the ultrasonic seal 106 is formed. Therefore, foaming of impurities (steam explosion) does not occur when the ultrasonic seal 106 is formed, and there is little possibility of sealing failure such as pinholes and cracks. Therefore, in the film packaging bag 100, the formation efficiency of the side seal 104 and the quality stability can be improved.
  • FIG. 2 is a side view showing a schematic configuration of the bag-making filling / packaging machine 1.
  • FIG. 3 is a front view showing the filling portion 30 and the like.
  • FIG. 4 is a front view showing the horizontal seal portion 60 and the cutter portion 70.
  • FIG. 5 is a side view showing the horizontal seal portion 60 and the cutter portion 70.
  • 6 (a) is a vertical sectional view of the heater bar 62
  • FIG. 6 (b) is a front view of the anvil bar 67.
  • the vertical bag-making filling and packaging machine 1 forms a film packaging bag 100 from a strip-shaped film F, and fills the film packaging bag 100 with the contents X.
  • the vertical bag-making filling / packaging machine 1 divides the strip-shaped film F into two in the width direction, and manufactures the film packaging bag 100 from each of the two divided films F. As a result, the vertical bag-making filling and packaging machine 1 can efficiently produce the film packaging bag 100 containing the contents.
  • the vertical bag-making filling / packaging machine 1 is controlled by a control unit (not shown) to fill the contents X while intermittently transporting the film F downward.
  • the vertical bag-making filling / packaging machine 1 puts (encloses) the content X inside the film packaging bag 100.
  • the film packaging bag 100 is fully filled with the contents X without containing air.
  • the vertical bag-making filling and packaging machine 1 continuously manufactures a film packaging bag 100 containing contents.
  • the vertical bag-making filling / packaging machine 1 includes two sets of members and the like arranged on the downstream side of the M-shaped guide 12, which will be described later. These members and the like are arranged in parallel along the transport direction of the film F. In the following description, a structure for manufacturing the film packaging bag 100 from one of the two divided films F (simply referred to as film F) will be described.
  • the film F a laminated film in which a high-strength film such as nylon or polyester is laminated is used.
  • the film F has a sealing layer on the inner surface, and is laminated so that the inner surfaces are welded to each other but the outer surfaces are not welded to each other.
  • the longitudinal direction of the film F is also referred to as a transport direction.
  • the width direction of the film F is also referred to as a lateral direction.
  • the longitudinal direction of the film F when the content X is filled is called the vertical direction.
  • the vertical direction is the vertical direction, and the downward direction is the transport direction of the film F.
  • the horizontal (width) direction of the film F when the content X is filled is also referred to as a left-right direction.
  • the thickness direction of the film F when the content X is filled is also referred to as a front-back direction.
  • the vertical direction of the vertical bag-making filling and packaging machine 1 corresponds to the horizontal direction of the film packaging bag 100.
  • the front-rear direction of the vertical bag-making filling and packaging machine 1 corresponds to the thickness direction of the film packaging bag 100.
  • the left-right direction of the vertical bag-making filling and packaging machine 1 corresponds to the vertical direction of the film packaging bag 100.
  • the right side of the vertical bag making filling and packaging machine 1 corresponds to the upper part (top seal 103) side of the film packaging bag 100
  • the left side of the vertical bag making filling and packaging machine 1 corresponds to the lower part (bottom seal 101) side of the film packaging bag 100. Corresponds to.
  • the vertical bag-making filling and packaging machine 1 includes a bag-making guide unit 10, a vertical sealing unit 20, a filling unit 30, a design cutter unit 40, a film transport unit 50, a horizontal sealing unit 60, and a cutter unit 70. Each of these parts is supported by a frame (not shown). The film F is rolled into a roll and supported by the film shaft 3.
  • the bag making guide portion 10 includes a cutter 11, an M-shaped guide 12, a two-fold guide 13, and a folding guide 14.
  • the cutter 11, the M-shaped guide 12, the folding guide 13, and the folding guide 14 are arranged in this order in the transport direction of the film F.
  • the feeding direction of the film F in the bag making guide portion 10 is the forward direction (horizontal direction).
  • the cutter 11 is arranged at the center position in the width direction of the film F in the transport path of the film F. By transporting the film F in the longitudinal direction, the cutter 11 cuts the film F along the longitudinal direction while dividing the film F into two at the center in the width direction.
  • the M-shaped guide 12 is a plate-shaped member arranged so that the main surface is perpendicular to the transport direction of the film F.
  • the M-shaped guide 12 guides the film F divided into two parts outward in the width direction in a state of being twisted by 90 °.
  • the bi-fold guide 13 is a triangular plate-shaped member.
  • the bi-fold guide 13 folds the film F in half at the center in the width direction using the main surface and the two hypotenuses.
  • the folding guide 14 is a triangular plate-shaped member arranged adjacent to the folding guide 13.
  • the folding guide 14 folds the mountain-folded portion of the film F folded in half into an M-shape. That is, the folding guide 13 and the folding guide 14 form the gusset portion 100a of the film packaging bag 100.
  • the bag making guide unit 10 further includes guide rollers 15 and 16 for guiding the transfer of the film F divided into two.
  • the guide roller 15 is arranged between the M-shaped guide 12 and the bi-fold guide 13, and causes the film F facing outward to face inward.
  • the pair of guide rollers 16 are arranged on the downstream side of the folding guide 14 and sandwich the film F folded in half.
  • the vertical seal portion 20 heat-welds the film F along the vertical direction using a heater bar.
  • the vertical seal portion 20 is intermittently driven in synchronization with the intermittent transfer of the film F.
  • the vertical sealing portion 20 forms the film F in a tubular shape. This tube film is called a film Fc.
  • the vertical seal portion 20 includes a bottom seal portion 21, a bottom reinforcing seal portion 22, a top seal portion 24, and a top cooling portion 25.
  • the bottom seal portion 21, the bottom reinforcing seal portion 22, the top seal portion 24, and the top cooling portion 25 are arranged in this order.
  • the bottom seal portion 21 heat-welds the gusset portion 100a of the film F to form the bottom seal 101 on the film F.
  • the bottom reinforcing seal portion 22 heat-welds the gusset portion 100a of the film F to form the bottom reinforcing seal 102 on the film F.
  • the bottom reinforcing seal portion 22 is arranged adjacent to the downstream side (front direction) of the bottom seal portion 21 in the transport direction of the film F.
  • the top seal portion 24 heat-welds the side ends of the film F to form the top seal 103 on the film F.
  • the top cooling unit 25 cools the top seal 103.
  • the top cooling portion 25 is arranged adjacent to the downstream side (downward direction) of the top seal portion 24 in the transport direction of the film F. By cooling the top seal 103 with the top cooling unit 25, the film Fc can be immediately transferred to the next step.
  • the guide roller 23 is arranged between the bottom reinforcing seal portion 22 and the top seal portion 24.
  • the guide roller 23 changes the transport direction of the film F from the front (horizontal) direction to the downward (vertical) direction.
  • the film F is fed horizontally (forward) in the bottom seal portion 21 and the bottom reinforcing seal portion 22, and the film F is fed in the vertical direction (downward) in the top seal portion 24 and the top cooling portion 25.
  • the filling unit 30 is provided with a charging pipe 31 and the like, and the content (fluid) X is charged inside the film Fc.
  • the charging pipe 31 is arranged between the bottom seal portion 21 and the top seal portion 24 in the transport direction of the film F.
  • the input pipe 31 is inserted from the side of the film F to the inner surface side, bends downward, and enters the inside of the film Fc.
  • the input pipe 31 extends downward, and its tip (discharge port) is arranged directly above the lateral seal portion 60.
  • the design cutter portion 40 is arranged downstream (downward) of the top seal portion 24 in the transport direction of the film F.
  • the design cutter unit 40 includes a bottom cutter 41 and a top cutter 42.
  • the bottom cutter 41 arranges the shapes of the bottom seal 101 and the bottom reinforcing seal 102 formed by the bottom seal portion 21 and the bottom reinforcing seal portion 22.
  • the top cutter 42 adjusts the shape of the top seal 103 formed by the top seal portion 24.
  • the film transport unit 50 is arranged downstream of the design cutter unit 40 and upstream of the tip of the charging pipe 31 (loading position of the content X) in the transport direction of the film F.
  • the film transport unit 50 includes a pair of transport rollers 51.
  • the pair of transport rollers 51 are closely arranged in the front-rear direction (thickness direction of the film Fc) with the film Fc interposed therebetween.
  • a pair of transport rollers 51 are arranged on both sides of the film Fc in the width (left and right) direction.
  • the film transport unit 50 transports (feeds) the film Fc downward by rotating the transport rollers 51 while sandwiching the film Fc.
  • the lateral seal portion 60 is arranged below the tip of the input pipe 31 and welds the film Fc over the width direction.
  • the lateral seal portion 60 forms a side seal 104 on the film Fc.
  • the horizontal seal portion 60 is intermittently driven in synchronization with the intermittent transfer of the film F.
  • side seals 104 are formed on the film Fc at regular intervals in the vertical direction.
  • the horizontal seal portion 60 includes a preheat seal portion 61 and an ultrasonic seal portion 65.
  • the preheat seal portion 61 heat-welds the film Fc laterally using the heater bar 62 and the heater receiving bar 63.
  • the preheat seal portion 61 forms the preheat seal 105 of the side seals 104.
  • the ultrasonic sealing unit 65 ultrasonically welds the film Fc in the lateral direction using the horn bar 66 and the anvil bar 67.
  • the ultrasonic seal portion 65 forms the ultrasonic seal 106 of the side seal 104.
  • the preheat sealing portion 61 and the ultrasonic sealing portion 65 are arranged in this order in the transport (downward) direction of the film Fc.
  • the arrangement interval between the preheat sealing portion 61 and the ultrasonic sealing portion 65 in the vertical direction corresponds to the intermittent transport distance of the film Fc. Therefore, the ultrasonic sealing unit 65 further welds the portion where the film Fc is heat-welded to each other by the preheat sealing unit 61 by ultrasonic waves.
  • the ultrasonic seal 106 is formed by superimposing the ultrasonic seal 106 on the preheat seal 105. That is, the horizontal sealing portion 60 welds the films F to each other twice (twice) in the thickness direction of the film Fc.
  • the preheat seal portion 61 heats the films F to each other (film Fc) and incompletely welds them.
  • the preheat seal portion 61 heat-welds the films F to each other and temporarily fixes them.
  • the preheat seal portion 61 has a shorter heating time than the vertical seal portion 20 (bottom seal portion 21, bottom reinforcing seal portion 22, top seal portion 24). Therefore, the preheat seal 105 has a lower welding strength than the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103.
  • the preheat seal portion 61 may be destroyed (leaked).
  • no external force is applied to the film packaging bag 100, so that the preheat seal 105 is not destroyed.
  • the ultrasonic seal unit 65 applies ultrasonic waves to the preheat seal 105 to further weld the films F to each other.
  • the ultrasonic seal portion 65 sufficiently welds the films F to each other to form the ultrasonic seal 106.
  • the welding strength of the ultrasonic seal 106 is equivalent to that of the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103.
  • the heater bar 62, the heater receiving bar 63, the horn bar 66, and the anvil bar 67 each extend linearly in the left-right direction.
  • the width (seal width) of the seal forming surface of the heater bar 62 and the heater bar 66 is constant.
  • the seal width of the heater bar 62 and the heater receiving bar 63 is equal to the (downward) width of the side seal 104.
  • the horn bar 66 and the anvil bar 67 have a narrower seal width than the heater bar 62 and the heater receiving bar 63.
  • the horn bar 66 and the anvil bar 67 have a seal width of 15 mm
  • the heater bar 62 and the heater receiving bar 63 have a seal width of 18 mm.
  • the seal width of the horn bar 66 and the anvil bar 67 is preferably 50 to 90% of the seal width of the heater bar 62 and the heater receiving bar 63.
  • the vertical distance (distance between centers) between the heater bar 62 and the horn bar 66 corresponds to the intermittent transport distance of the film Fc. Therefore, the ultrasonic seal 106 is completely superposed on the preheat seal 105.
  • the ultrasonic seal 106 is superimposed on the center of the preheat seal 105 in the vertical direction.
  • the ultrasonic seal 106 superimposes symmetrically on the preheat seal 105 in the vertical direction.
  • the preheat seal 105 is arranged so as to protrude by 2 mm in each of the vertical directions of the ultrasonic seal 106.
  • the seal forming surface is not flat, and the center of the seal width direction (vertical direction) is the film Fc over the entire length in the seal length direction (horizontal direction). It slightly protrudes (tilts) toward it.
  • the content X is divided in the vertical direction.
  • the seal forming surface of the heater bar 62 is slightly inclined in the vertical direction, the content X is pushed out in the vertical direction. That is, the heater bar 62 removes the content X from the portion forming the preheat seal 105.
  • the anvil bar 67 is not a single plane but a pair of parallel strips extending in the seal length direction (left-right direction).
  • the anvil bar 67 has a non-seal forming region 68 in the center in the seal width direction (vertical direction).
  • the width of the non-seal forming region 68 is, for example, 1 mm.
  • the width of the non-seal forming region 68 is preferably 20% or less of the width of the anvil bar 67.
  • the non-seal forming region 68 is provided at the center of the ultrasonic seal 106 in the seal width direction so that when the side seal 104 is cut by the cutter portion 70, impurities are not exposed on the cut surface. Even if the contaminants remain on the preheat seal 105, when the preheat seal 105 is gripped (pressed) by the horn bar 66 and the anvil bar 67, the contaminants move so as to avoid the horn bar 66. That is, impurities move to the non-seal forming region 68 of the anvil bar 67. Therefore, no contaminants remain on the ultrasonic seal 106.
  • the horizontal seal portion 60 does not include a cooling portion for cooling the preheat seal 105. That is, the cooling unit is not provided on the downstream side of the preheat seal unit 61. This is because the ultrasonic seal unit 65 functions as a cooling unit for cooling the preheat seal 105. Since the horn bar 66 and the anvil bar 67 are each made of metal, the temperature is lower than that of the film Fc. Further, cooling water is supplied to the inside of the anvil bar 67 to cool it. Therefore, when the film Fc is sandwiched between the horn bar 66 and the anvil bar 67, the heat of the film Fc (preheat seal 105) is taken away and cooled.
  • the ultrasonic seal portion 65 can rapidly cool and solidify the preheat seal 105.
  • the horizontal seal portion 60 does not require a cooling portion, the vertical bag-making filling and packaging machine 1 can suppress the height of the apparatus as before.
  • the cutter portion 70 has a cutter bar 71 and cuts the side seal 104 of the film Fc in the left-right direction (seal length direction). As a result, the bag body Fa formed at the lower end of the film Fc is cut off from the film Fc. The film packaging bag 100 containing the contents is individually cut off.
  • the cutter portion 70 cuts the center of the side seal 104 in the vertical direction in a strip shape.
  • the lateral seal portion 60 forms a side seal 104 in which three preheat seals 105 and two ultrasonic seals 106 are alternately arranged.
  • the cutter portion 70 completely cuts off the preheat seal 105 arranged between the two ultrasonic seals 106.
  • the cutter portion 70 cuts the side seal 104 so as to cut off a part of each of the two ultrasonic seals 106. Therefore, the side seal 104 of the film packaging bag 100 containing the contents has only the ultrasonic seal 106 on the outside (cut surface). No cut surface is formed on the preheat seal 105 placed between the two ultrasonic seals 106. Therefore, even if the contaminants remain on the preheat seal 105 between the two ultrasonic seals 106, the cutter bar 71 is not contaminated with the contaminants.
  • the horizontal sealing portion 60 includes the preheat sealing portion 61 and the ultrasonic sealing portion 65
  • the drawbacks of ultrasonic welding are temporarily fixed by heat welding while taking advantage of ultrasonic welding.
  • the preheat seal portion 61 that can be supplemented forms the preheat seal 105
  • the film F is softened, so that the ultrasonic seal portion 65 can form the ultrasonic seal 106 in a short time. Even if there is a step in the thickness direction at the portion where the ultrasonic seal portion 65 forms the ultrasonic seal 106, the film F is softened by the preheat seal portion 61 forming the preheat seal 105, and the step is eliminated.
  • the ultrasonic seal portion 65 can satisfactorily form the ultrasonic seal 106.
  • the horizontal seal portion 60 forms a side seal 104 in a state where the film Fc is filled with the content X (seal in liquid).
  • the ultrasonic seal 106 is likely to have a defective seal or a broken edge.
  • the preheat seal portion 61 forms the preheat seal 105 before the ultrasonic seal portion 65 forms the ultrasonic seal 106, it is difficult for a seal defect or edge breakage to occur. Since the preheat seal portion 61 forms the preheat seal 105, impurities are less likely to remain in the portion (preheat seal 105) where the ultrasonic seal portion 65 forms the ultrasonic seal 106.
  • the vertical bag-making filling and packaging machine 1 can improve the forming efficiency and quality stability of the film packaging bag 100 (side seal 104).
  • ⁇ Film transport process S1, bag making guide process S2> First, the film F is unwound from the roll supported by the film shaft 3, and is intermittently conveyed by the film conveying section 50 toward the bag making guide section 10. Then, the film F is divided into two in the width direction by passing through the bag making guide portion 10, and is further folded in half.
  • the film F is sent to the vertical sealing portion 20.
  • the film F first forms a bottom seal 101 and a bottom reinforcing seal 102 by the bottom seal portion 21 and the bottom reinforcing seal portion 22.
  • the film F is fed downward via the guide roller 23.
  • the film F is sent to the top seal portion 24 to form the top seal 103.
  • the film F becomes tubular (film Fc).
  • the film heating conditions in the vertical seal portion 20 bottom seal portion 21, bottom reinforcing seal portion 22, top seal portion 24) are, for example, a heating temperature of 130 ° C. and a heating time of 0.7 seconds.
  • the film Fc is sent to the top cooling unit 25, and the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103 are cooled and solidified.
  • the film Fc is sent to the design cutter unit 40, and the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103 are cut into a predetermined shape. That is, the shapes of the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103 are arranged.
  • ⁇ Filling step S5> the film Fc is sent to the filling portion 30 (the tip of the charging pipe 31) to be filled with the content X which is a fluid.
  • ⁇ Preheat sealing process S61> In the horizontal seal portion 60, first, the film Fc is sent to the preheat seal portion 61 to form the preheat seal 105.
  • the film heating conditions in the preheat seal portion 61 are, for example, a heating temperature of 130 ° C. and a heating time of 0.4 seconds. The film heating conditions differ depending on the type of film and the filling material.
  • the film heating time of the preheat sealing portion 61 is shorter than the film heating time of the vertical sealing portion 20 of 0.7 seconds. Therefore, the preheat seal 105 has a lower welding strength than the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103.
  • the preheat seal 105 functions as a temporary fixing.
  • the preheat seal 105 By forming the preheat seal 105 on the film Fc, the content X filled in the film Fc is divided into upper and lower parts with the preheat seal 105 as a boundary.
  • the heater bar 62 of the preheat seal portion 61 has a seal forming surface slightly inclined in the vertical direction. Therefore, the content X is pushed up and down. Therefore, almost no impurities (contents X) remain on the preheat seal 105.
  • the side seal 104 on the film Fc the bag body Fa appears at the lower end of the film Fc. The contents X are enclosed (full-filled) in the bag body Fa.
  • the film Fc is subsequently sent to the ultrasonic seal portion 65 to form the ultrasonic seal 106.
  • the ultrasonic seal 106 is formed so as to be superimposed on the preheat seal 105.
  • the ultrasonic seal 106 is formed by further applying ultrasonic waves to the preheat seal 105 and welding the preheat seal 105.
  • the ultrasonic seal portion 65 sufficiently welds the films F to each other when forming the ultrasonic seal 106.
  • the vibration conditions in the ultrasonic seal unit 65 are, for example, a frequency of 30 kHz and a vibration time of 0.3 seconds. Thereby, the film Fc is completely sealed by the side seal 104.
  • the lateral seal portion 60 forms the side seal 104 in which the three preheat seals 105 and the two ultrasonic seals 106 are alternately arranged. Even if impurities remain in the preheat seal 105 formed by the preheat seal portion 61, when the anvil bar 67 grips (presses) the preheat seal 105, the impurities move so as to avoid the anvil bar 67. Therefore, no contaminants remain on the ultrasonic seal 106. Therefore, when the side seal 104 (ultrasonic seal 106) is cut by the cutter portion 70 in the subsequent process, no impurities appear on the cut surface.
  • the side seal 104 is not cooled and solidified by the cooling unit like the top seal 103 and the like.
  • the ultrasonic seal unit 65 functions as a cooling unit for cooling the preheat seal 105.
  • the horn bar 66 and the anvil bar 67 are made of metal, the temperature is lower than that of the film Fc. Further, cooling water is supplied to the inside of the anvil bar 67 to cool it. Therefore, when the horn bar 66 sandwiches the film Fc, it takes heat from the film Fc (preheat seal 105) and cools the film Fc.
  • the heating time of the preheat seal portion 61 is short, the horn bar 66 can rapidly cool the preheat seal 105. As described above, the manufacturing efficiency of the film packaging bag 100 containing the contents can be improved without requiring time for cooling the preheat seal 105.
  • ⁇ Detachment step S7> the film Fc is further sent downward, and the side seal 104 is cut by the cutter portion 70.
  • the cutter portion 70 cuts the side seal 104 in the left-right direction by the cutter bar.
  • the bag body Fa formed at the lower end of the film Fc is cut off from the film Fc. That is, the film packaging bag 100 containing the contents is individually cut off.
  • the cutter portion 70 cuts the center of the side seal 104 in the vertical direction in a strip shape.
  • the cutter portion 70 completely cuts off the preheat seal 105 arranged between the two ultrasonic seals 106. Further, the cutter portion 70 cuts a part of each of the two ultrasonic seals 106. Even if impurities remain in the preheat seal 105 between the two ultrasonic seals 106, the cutter bar of the cutter portion 70 is not contaminated with the impurities. Therefore, the side seal 104 of the film packaging bag 100 containing the contents has only the ultrasonic seal 106 as the measuring end (cut surface).
  • the horizontal sealing step S6 includes a preheat sealing step S61 and an ultrasonic sealing step S62. Therefore, while taking advantage of ultrasonic welding, the shortcomings of ultrasonic welding can be compensated for by heat welding of temporary fixing. Since the film F (preheat seal 105) is softened by passing through the preheat seal step S61, the ultrasonic seal 106 can be formed in a short time in the ultrasonic seal step S62. Even if there is a step in the thickness direction at the portion where the ultrasonic seal 106 is formed, the film F is softened by forming the preheat seal 105 in the preheat seal step S61, and the step is eliminated.
  • the ultrasonic seal 106 can be satisfactorily formed in the ultrasonic seal step S62.
  • the side seal 104 is formed in a state where the film Fc is filled with the fluid (content X) (seal in liquid).
  • the ultrasonic seal 106 is likely to have a defective seal or a broken edge.
  • the preheat seal 105 is formed in the preheat seal step S61 prior to forming the ultrasonic seal 106 in the ultrasonic seal step S62, sealing defects and edge breakage are less likely to occur. By forming the preheat seal 105, impurities are less likely to remain on the portion (preheat seal 105) where the ultrasonic seal 106 is formed.
  • the bag making guide portion 10 may divide the film F into three or more parts, and manufacture the package from each of the three parts or more. Further, the case may be used in which the package is manufactured without dividing the film F.
  • a standing pouch type package has been described, but the present invention is not limited to this. It may be a case of manufacturing a four-sided seal type package having no gusset portion 100a. Not limited to the four-way seal type, a three-way seal type, a two-way seal type, or a pillow bag having a back seal may be used.

Abstract

This vertical-type bag filling and packing device (1) for manufacturing a film packing bag (100) and sealing a fluid (X), comprises: a film conveyance unit (50) that downwardly conveys a tube film (Fc); a filling unit (30) that puts a fluid into the tube film (Fc); a horizontal seal unit (60) that welds the tube film (Fc) in the horizontal direction to make a bag body (Fa); and a cutter unit (70) that cuts the bag body (Fa) from the tube film (Fc). The horizontal seal unit (60) comprises: a preheat seal part (61) that heats and welds the tube film (Fc); and an ultrasonic seal part (65) that further applies ultrasonic waves to a preheat seal (105) formed by the preheat seal part (61) to weld the preheat seal (105).

Description

内容物入りフィルム包装袋、縦型製袋充填包装機、内容物入りフィルム包装袋の製造方法Manufacturing method of film packaging bag with contents, vertical bag filling and packaging machine, film packaging bag with contents
　本発明は、内容物入りフィルム包装袋、縦型製袋充填包装機、内容物入りフィルム包装袋の製造方法に関する。 The present invention relates to a film packaging bag containing contents, a vertical bag-making filling and packaging machine, and a method for manufacturing a film packaging bag containing contents.
　食品を封入したフィルム包装袋が流通している。このようなフィルム包装袋は、パウチ袋と呼ばれている。フィルム包装袋を製袋して食品等を充填する縦型製袋充填機においては、フィルムを加熱して溶着するヒートシールが用いられていた。
　近年においては、シール形成の効率化や簡素化、品質の安定性等の要請から、超音波シールが開発されている。 Film packaging bags containing food are on the market. Such a film packaging bag is called a pouch bag. In a vertical bag-making filling machine that makes a film packaging bag and fills foods and the like, a heat seal that heats and welds the film has been used.
In recent years, ultrasonic seals have been developed in response to demands for efficiency and simplification of seal formation, stability of quality, and the like.
特開２０１８－００２２１５号公報Japanese Unexamined Patent Publication No. 2018-002215
　ところが、超音波シールにも様々な欠点がある。例えば、フィルムを軟化させなければシールを短時間で形成することができない。フィルムに厚み方向の段差があると、シールを形成することができない。
　また、チューブ状のフィルムに液体等の流動体を充填した状態でシール（液中シール）を形成するときに、シール不良やエッジ切れが発生しやすい。特に、シールを形成する部位に夾雑物が残留していると、溶着時に水蒸気爆発（発泡）が起きて、ピンホールやクラック等のシール不良が発生する。 However, the ultrasonic seal also has various drawbacks. For example, the seal cannot be formed in a short time without softening the film. If the film has a step in the thickness direction, the seal cannot be formed.
Further, when a seal (submerged seal) is formed in a state where a tubular film is filled with a fluid such as a liquid, a seal defect or edge breakage is likely to occur. In particular, if impurities remain in the portion where the seal is formed, steam explosion (foaming) occurs at the time of welding, and seal defects such as pinholes and cracks occur.
　本発明は、シール部の形成効率化や品質安定性を図ることができる内容物入りフィルム包装袋、縦型製袋充填包装機および内容物入りフィルム包装袋の製造方法を提供することを目的とする。 An object of the present invention is to provide a film packaging bag containing contents, a vertical bag-making filling and packaging machine, and a method for manufacturing a film packaging bag containing contents, which can improve the efficiency of forming a seal portion and stabilize the quality.
　本発明に係る内容物入りフィルム包装袋の実施態様は、フィルム同士を溶着させたシール部を有するフィルム包装袋に流動体を封入した内容物入りフィルム包装袋であって、前記シール部は、前記フィルム同士が熱溶着されたプレヒートシールと、前記プレヒートシールがさらに超音波溶着された超音波シールと、からなる第一シールを有することを特徴とする。 An embodiment of the content-containing film packaging bag according to the present invention is a content-containing film packaging bag in which a fluid is sealed in a film packaging bag having a sealing portion in which films are welded to each other, and the sealing portion is formed between the films. Is characterized by having a first seal comprising a heat-welded preheat seal and an ultrasonic seal further ultrasonically welded.
　本発明に係る内容物入りフィルム包装袋の実施態様は、前記シール部は、前記フィルム同士が熱溶着されたヒートシールのみからなる第二シールを有し、前記プレヒートシールは、前記第二シールよりも溶着強度が低いことを特徴とする。 In the embodiment of the film packaging bag containing the contents according to the present invention, the seal portion has a second seal including only a heat seal in which the films are heat-welded to each other, and the preheat seal is more than the second seal. It is characterized by low welding strength.
　本発明に係る内容物入りフィルム包装袋の実施態様は、前記超音波シールは、前記プレヒートシールよりも幅が狭いことを特徴とする。 An embodiment of the content-containing film packaging bag according to the present invention is characterized in that the ultrasonic seal has a narrower width than the preheat seal.
　本発明に係る内容物入りフィルム包装袋の実施態様は、前記超音波シールの幅は、前記プレヒートシールの幅の５０～９０％であることを特徴とする。 An embodiment of the content-containing film packaging bag according to the present invention is characterized in that the width of the ultrasonic seal is 50 to 90% of the width of the preheat seal.
　本発明に係る内容物入りフィルム包装袋の実施態様は、前記フィルム包装袋の外側において前記超音波シールと前記プレヒートシールが重畳配置され、前記フィルム包装袋の内側において前記プレヒートシールのみが配置されることを特徴とする。 An embodiment of the content-containing film packaging bag according to the present invention is that the ultrasonic seal and the preheat seal are superposed on the outside of the film packaging bag, and only the preheat seal is arranged on the inside of the film packaging bag. It is characterized by.
　本発明に係る内容物入りフィルム包装袋の実施態様は、前記第一シールは、前記フィルム包装袋の外周のうちの対向する側辺にそれぞれ配置されることを特徴とする。 An embodiment of the content-containing film packaging bag according to the present invention is characterized in that the first seal is arranged on opposite side sides of the outer periphery of the film packaging bag.
　本発明に係る縦型製袋充填包装機の実施態様は、フィルム包装袋を製袋して流動体を封入する縦型製袋充填包装機であって、チューブフィルムを下方向に搬送するフィルム搬送部と、前記チューブフィルムの内側に流動体を投入する充填部と、前記チューブフィルムを幅方向に亘って溶着して袋体にする横シール部と、前記袋体を前記チューブフィルムから切り離すカッター部と、を備え、前記横シール部は、前記チューブフィルムを加熱して溶着するプレヒートシール部と、前記プレヒートシール部が形成したプレヒートシールにさらに超音波を与えて溶着する超音波シール部と、を備えることを特徴とする。 An embodiment of the vertical bag-making filling and packaging machine according to the present invention is a vertical bag-making filling and packaging machine that creates a film packaging bag and encloses a fluid, and transports a film that conveys a tube film downward. A portion, a filling portion for charging a fluid inside the tube film, a horizontal sealing portion for welding the tube film in the width direction to form a bag body, and a cutter portion for separating the bag body from the tube film. The horizontal seal portion includes a preheat seal portion that heats and welds the tube film, and an ultrasonic seal portion that further applies ultrasonic waves to the preheat seal formed by the preheat seal portion to weld the film. It is characterized by being prepared.
　本発明に係る縦型製袋充填包装機の実施態様は、帯状のフィルム同士を熱溶着して前記チューブフィルムを形成する縦シール部を備え、前記プレヒートシール部の加熱時間は、前記縦シール部の加熱時間よりも短いことを特徴とする。 An embodiment of the vertical bag-making filling and packaging machine according to the present invention includes a vertical sealing portion that heat-welds strip-shaped films to each other to form the tube film, and the heating time of the preheat sealing portion is set to the vertical sealing portion. It is characterized by being shorter than the heating time of.
　本発明に係る縦型製袋充填包装機の実施態様は、前記超音波シール部は、さらに前記プレヒートシールを冷却固化することを特徴とする。 An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the ultrasonic seal portion further cools and solidifies the preheat seal.
　本発明に係る縦型製袋充填包装機の実施態様は、前記超音波シール部は、前記プレヒートシール部よりもシール幅が狭いことを特徴とする。 An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the ultrasonic sealing portion has a narrower sealing width than the preheat sealing portion.
　本発明に係る縦型製袋充填包装機の実施態様は、前記超音波シール部は、前記プレヒートシール部が形成したプレヒートシールに対して、超音波シールを上下方向において対称に重畳させるように形成することを特徴とする。 In an embodiment of the vertical bag-making filling and packaging machine according to the present invention, the ultrasonic seal portion is formed so that the ultrasonic seal is symmetrically superimposed on the preheat seal formed by the preheat seal portion in the vertical direction. It is characterized by doing.
　本発明に係る縦型製袋充填包装機の実施態様は、前記超音波シール部は、シール幅方向の中央にシール長さ方向に延びる非シール形成領域を有することを特徴とする。 An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the ultrasonic seal portion has a non-seal forming region extending in the seal length direction at the center in the seal width direction.
　本発明に係る縦型製袋充填包装機の実施態様は、前記カッター部は、前記横シール部が形成した横シールのうち、前記非シール形成領域に対応する部位を切除することを特徴とする。 An embodiment of the vertical bag-making filling and packaging machine according to the present invention is characterized in that the cutter portion cuts a portion of the horizontal seal formed by the horizontal seal portion corresponding to the non-seal forming region. ..
　本発明に係る内容物入りフィルム包装袋の製造方法の実施態様は、フィルム包装袋を製袋して流動体を封入する内容物入りフィルム包装袋の製造方法であって、前記チューブフィルムを下方向に搬送するフィルム搬送工程と、前記チューブフィルムの内部に流動体を充填する充填工程と、前記チューブフィルムを幅方向に亘って溶着して袋体にする横シール工程と、前記袋体を前記チューブフィルムから切り離す切離工程と、を有し、前記横シール工程は、前記チューブフィルムを加熱して溶着するプレヒートシール工程と、前記プレヒートシール工程で形成したプレヒートシールにさらに超音波を与えて溶着する超音波シール工程と、を含むことを特徴とする。 An embodiment of the method for manufacturing a film packaging bag containing contents according to the present invention is a method for manufacturing a film packaging bag containing contents in which a film packaging bag is manufactured and a fluid is enclosed, and the tube film is conveyed downward. A film transporting step, a filling step of filling the inside of the tube film with a fluid, a horizontal sealing step of welding the tube film over the width direction to form a bag, and a bag body from the tube film. The horizontal sealing step includes a cutting step for separating, a preheat sealing step for heating and welding the tube film, and an ultrasonic wave for further applying ultrasonic waves to the preheat seal formed in the preheat sealing step. It is characterized by including a sealing process.
　本発明に係る内容物入りフィルム包装袋の製造方法の実施態様は、帯状のフィルム同士を熱溶着して前記チューブフィルムを形成する縦シール工程を有し、前記プレヒートシール工程で形成するプレヒートシールは、前記縦シール工程で形成する縦シールよりも溶着強度が低いことを特徴とする。 An embodiment of the method for producing a film packaging bag containing contents according to the present invention includes a vertical sealing step of heat-welding strip-shaped films to each other to form the tube film, and the preheat sealing formed by the preheat sealing step is a preheat sealing step. It is characterized by having a lower welding strength than the vertical seal formed in the vertical seal step.
　本発明によれば、シール部の形成効率化や品質安定性を図ることができる内容物入りフィルム包装袋、縦型製袋充填包装機および内容物入りフィルム包装袋の製造方法を実現できる。 According to the present invention, it is possible to realize a film packaging bag containing contents, a vertical bag-making filling and packaging machine, and a film packaging bag containing contents, which can improve the efficiency of forming a seal portion and stabilize the quality.
本発明の実施形態に係る内容物入りフィルム包装袋１００の正面図である。It is a front view of the film packaging bag 100 containing contents which concerns on embodiment of this invention. 本発明の実施形態に係る製袋充填包装機１の概略構成を示す側面図である。It is a side view which shows the schematic structure of the bag making filling packaging machine 1 which concerns on embodiment of this invention. 充填部３０等を示す正面図である。It is a front view which shows the filling part 30 and the like. 横シール部６０およびカッター部７０を示す正面図である。It is a front view which shows the side seal part 60 and the cutter part 70. 横シール部６０およびカッター部７０を示す側面図である。It is a side view which shows the side seal part 60 and the cutter part 70. （ａ）ヒーターバー６２の縦断面図、（ｂ）アンビルバー６７の正面図である。(A) A vertical sectional view of the heater bar 62, and (b) a front view of the anvil bar 67.
　以下、本発明の実施形態に係るフィルム包装袋１００、縦型製袋充填包装機１および内容物入りフィルム包装袋１００の製造方法について説明する。 Hereinafter, a method for manufacturing the film packaging bag 100, the vertical bag-making filling and packaging machine 1, and the content-containing film packaging bag 100 according to the embodiment of the present invention will be described.
〔フィルム包装袋１００〕
　図１は、内容物入りフィルム包装袋１００の正面図である。
　フィルム包装袋１００は、いわゆるスタンディングパウチタイプの包装体であり、後述する縦型製袋充填包装機１により製袋される。 [Film packaging bag 100]
FIG. 1 is a front view of a film packaging bag 100 containing contents.
The film packaging bag 100 is a so-called standing pouch type packaging body, and is manufactured by the vertical bag-making filling and packaging machine 1 described later.
　フィルム包装袋１００は、帯状のフィルムＦの四辺をシール（熱溶着、超音波溶着）して形成される。フィルム包装袋１００は、その四辺にシール部を有する。このシール部には、ボトムシール１０１、ボトム補強シール１０２、トップシール１０３およびサイドシール１０４が含まれる。 The film packaging bag 100 is formed by sealing (heat welding, ultrasonic welding) the four sides of the strip-shaped film F. The film packaging bag 100 has sealing portions on its four sides. The seal portion includes a bottom seal 101, a bottom reinforcing seal 102, a top seal 103, and a side seal 104.
　フィルムＦは、ナイロンやポリエステル等の高強度フィルムを積層したラミネートフィルムである。フィルムＦは、内面にシール層を有し、内面同士は溶着するが、外面同士は溶着しないように積層される。 Film F is a laminated film in which high-strength films such as nylon and polyester are laminated. The film F has a sealing layer on the inner surface, and is laminated so that the inner surfaces are welded to each other but the outer surfaces are not welded to each other.
　フィルム包装袋１００には、食品（飲食物）等の内容物Ｘが充填される。内容物Ｘは、液体等の流動体である。または流動体と固体の混合物である。流動体には、液体、ゼリー体、ペースト体も含まれる。
　フィルム包装袋１００は、内容物Ｘが充填された状態で自立（立て置き）できる。 The film packaging bag 100 is filled with the contents X such as food (food and drink). The content X is a fluid such as a liquid. Or it is a mixture of fluid and solid. The fluid also includes liquids, jellies and pastes.
The film packaging bag 100 can stand on its own (stand up) in a state where the content X is filled.
　フィルム包装袋１００が自立したときの上下方向を縦方向ともいう。
　フィルム包装袋１００が自立したときの幅方向を横方向ともいう。横方向のうち、フィルム包装袋１００の内部側を内側、外部側（端部側）を外側という。
　縦方向と横方向にそれぞれ直交する方向を厚み方向という。
　サイドシール１０４の延在方向、幅方向、厚み方向は、それぞれ、シール長さ方向、シール幅方向、ルール厚方向に一致する。 The vertical direction when the film packaging bag 100 is self-supporting is also referred to as a vertical direction.
The width direction when the film packaging bag 100 is self-supporting is also referred to as a lateral direction. In the lateral direction, the inner side of the film packaging bag 100 is referred to as the inner side, and the outer side (end side) is referred to as the outer side.
The directions orthogonal to each other in the vertical and horizontal directions are called the thickness direction.
The extending direction, the width direction, and the thickness direction of the side seal 104 correspond to the seal length direction, the seal width direction, and the rule thickness direction, respectively.
〈ボトムシール１０１、ボトム補強シール１０２〉
　ボトムシール（シール部、第二シール、縦シール）１０１は、後述するボトムシール部２１によって、フィルム包装袋１００の下辺に形成される。
　ボトム補強シール（シール部、第二シール、縦シール）１０２は、後述する第２ボトム補強シール部２２によって、フィルム包装袋１００の下辺両端に形成される。 <Bottom seal 101, bottom reinforcement seal 102>
The bottom seal (seal portion, second seal, vertical seal) 101 is formed on the lower side of the film packaging bag 100 by the bottom seal portion 21 described later.
The bottom reinforcing seals (seal portion, second seal, vertical seal) 102 are formed at both ends of the lower side of the film packaging bag 100 by the second bottom reinforcing seal portion 22 described later.
　フィルム包装袋１００の下端側には、フィルムＦを二重（Ｍ字形）に折り込んだガセット部１００ａが設けられる。ガセット部１００ａは、フィルムＦの内面同士を密着させた２つの外折り部と、フィルムＦの外面同士を密着させた１つの内折り部とからなる。２つの外折り部の間に内折り部が配置される。
　フィルムＦをＭ字形に折り畳んだ状態でボトムシール１０１とボトム補強シール１０２を形成ことにより、ガセット部１００ａが設けられる。 On the lower end side of the film packaging bag 100, a gusset portion 100a in which the film F is double-folded (M-shaped) is provided. The gusset portion 100a includes two outer folding portions in which the inner surfaces of the film F are in close contact with each other, and one inner folding portion in which the outer surfaces of the film F are in close contact with each other. An inner fold is placed between the two outer folds.
The gusset portion 100a is provided by forming the bottom seal 101 and the bottom reinforcing seal 102 in a state where the film F is folded into an M shape.
　ボトムシール１０１は、ガセット部１００ａの２つの外折り部をそれぞれ溶着する。ボトム補強シール１０２は、ガセット部１００ａの両端からフィルム包装袋１００の側辺下端を溶着する。ボトム補強シール１０２は、ボトムシール１０１の両端から内折り部を経てサイドシール１０４に向けて延びる。 The bottom seal 101 welds the two outer folds of the gusset portion 100a, respectively. The bottom reinforcing seal 102 welds the lower ends of the side sides of the film packaging bag 100 from both ends of the gusset portion 100a. The bottom reinforcing seal 102 extends from both ends of the bottom seal 101 toward the side seal 104 via the inwardly folded portion.
　ガセット部１００ａは、ボトムシール１０１とボトム補強シール１０２によりフィルムＦの内面同士が溶着されるが、フィルムＦの外面同士は溶着されない。このため、ガセット部１００ａが二股形状になる。フィルム包装袋１００の下端は、ガセット部１００ａの内折り部を起点にして、開閉可能になる。
　フィルム包装袋１００は、ガセット部１００ａを開くと、下部の厚みが大きくなる。これにより、フィルム包装袋１００は、ガセット部１００ａを底にして自立（立て置き）することが可能になる。
　一方、フィルム包装袋１００は、ガセット部１００ａを閉じると、下部の厚みが薄くなる。これにより、フィルム包装袋１００は、平置き（重ね置き）しやすくなる。 In the gusset portion 100a, the inner surfaces of the film F are welded to each other by the bottom seal 101 and the bottom reinforcing seal 102, but the outer surfaces of the film F are not welded to each other. Therefore, the gusset portion 100a has a bifurcated shape. The lower end of the film packaging bag 100 can be opened and closed starting from the inner folding portion of the gusset portion 100a.
When the gusset portion 100a of the film packaging bag 100 is opened, the thickness of the lower portion of the film packaging bag 100 increases. As a result, the film packaging bag 100 can stand on its own (standing) with the gusset portion 100a at the bottom.
On the other hand, when the gusset portion 100a of the film packaging bag 100 is closed, the thickness of the lower portion thereof becomes thin. This makes it easier for the film packaging bag 100 to be placed flat (stacked).
〈トップシール１０３〉
　トップシール（シール部、第二シール、縦シール）１０３は、後述するトップシール部２４によって、フィルム包装袋１００の上端に形成される。
　トップシール１０３は、フィルム包装袋１００の上辺を溶着するとともに、フィルム包装袋１００の飲み口の周辺部を形成する。
　トップシール１０３の上端側には、切り裂き用のノッチＮが設けられる。このノッチＮを起点にしてフィルムＦを横方向に切り裂いて、トップシール１０３の上端側を切り落とす。これにより、フィルム包装袋１００の上端に飲み口が出現する。 <Top seal 103>
The top seal (seal portion, second seal, vertical seal) 103 is formed at the upper end of the film packaging bag 100 by the top seal portion 24 described later.
The top seal 103 welds the upper side of the film packaging bag 100 and forms the peripheral portion of the drinking spout of the film packaging bag 100.
A notch N for tearing is provided on the upper end side of the top seal 103. The film F is cut laterally from this notch N as a starting point, and the upper end side of the top seal 103 is cut off. As a result, a drinking spout appears at the upper end of the film packaging bag 100.
〈サイドシール１０４〉
　サイドシール（シール部、第一シール、横シール）１０４は、後述する横シール部６０によって、フィルム包装袋１００の横方向の両端にそれぞれ形成される。サイドシール１０４は、フィルム包装袋１００の外周のうち、対向する側辺にそれぞれ配置される。
　サイドシール１０４は、フィルム包装袋１００の側辺を溶着する。サイドシール１０４は、縦方向に延在して、トップシール１０３とボトム補強シール１０２を繋ぐ。 <Side seal 104>
The side seals (seal portion, first seal, horizontal seal) 104 are formed at both ends of the film packaging bag 100 in the lateral direction by the horizontal seal portions 60 described later. The side seals 104 are arranged on opposite side sides of the outer circumference of the film packaging bag 100, respectively.
The side seal 104 welds the side sides of the film packaging bag 100. The side seal 104 extends in the vertical direction and connects the top seal 103 and the bottom reinforcing seal 102.
　サイドシール１０４は、プレヒートシール１０５と超音波シール１０６とからなる。
　プレヒートシール１０５は、フィルムＦ同士を加熱して不完全に溶着させたものである。プレヒートシール１０５は、仮止めとして機能する。つまり、ボトムシール１０１、ボトム補強シール１０２、トップシール１０３に比べて溶着強度が低い。フィルム包装袋１００に外力を加えるとプレヒートシール１０５が破壊（リーク）されることがある。例えば、フィルム包装袋１００を把持すると、プレヒートシール１０５が破壊される場合がある。 The side seal 104 includes a preheat seal 105 and an ultrasonic seal 106.
The preheat seal 105 is obtained by heating the films F to each other and incompletely welding them. The preheat seal 105 functions as a temporary fixing. That is, the welding strength is lower than that of the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103. When an external force is applied to the film packaging bag 100, the preheat seal 105 may be destroyed (leaked). For example, gripping the film packaging bag 100 may destroy the preheat seal 105.
　超音波シール１０６は、プレヒートシール１０５に超音波を与えて、フィルムＦ同士をさらに溶着させたものである。超音波シール１０６は、フィルム包装袋１００の厚み方向においてフィルムＦを二重に溶着したものである。超音波シール１０６では、フィルムＦ同士が十分に溶着される。 The ultrasonic seal 106 is obtained by applying ultrasonic waves to the preheat seal 105 to further weld the films F to each other. The ultrasonic seal 106 is obtained by double welding the film F in the thickness direction of the film packaging bag 100. In the ultrasonic seal 106, the films F are sufficiently welded to each other.
　サイドシール１０４は、縦方向に沿って直線状に延びる。サイドシール１０４のシール幅は、縦方向において一定（６．５ｍｍ）である。
　プレヒートシール１０５のシール幅は、サイドシール１０４のシール幅に等しい。超音波シール１０６は、プレヒートシール１０５よりもシール幅が狭い。例えば、超音波シール１０６はシール幅が５ｍｍ、プレヒートシール１０５はシール幅が６．５ｍｍである。超音波シール１０６のシール幅は、プレヒートシール１０５のシール幅の５０～９０％が好ましい。
　プレヒートシール１０５に対して超音波シール１０６が完全に重畳するように配置される。サイドシール１０４の外側から中央では、プレヒートシール１０５と超音波シール１０６が重畳配置される。サイドシール１０４の内側では、プレヒートシール１０５のみが配置される。超音波シール１０６のシール幅方向の内側にプレヒートシール１０５がそれぞれ１．５ｍｍずつ食み出る。 The side seal 104 extends linearly along the vertical direction. The seal width of the side seal 104 is constant (6.5 mm) in the vertical direction.
The seal width of the preheat seal 105 is equal to the seal width of the side seal 104. The ultrasonic seal 106 has a narrower seal width than the preheat seal 105. For example, the ultrasonic seal 106 has a seal width of 5 mm, and the preheat seal 105 has a seal width of 6.5 mm. The seal width of the ultrasonic seal 106 is preferably 50 to 90% of the seal width of the preheat seal 105.
The ultrasonic seal 106 is arranged so as to completely superimpose on the preheat seal 105. The preheat seal 105 and the ultrasonic seal 106 are superposed on each other from the outside to the center of the side seal 104. Inside the side seal 104, only the preheat seal 105 is arranged. The preheat seal 105 protrudes 1.5 mm from the inside of the ultrasonic seal 106 in the seal width direction.
　フィルム包装袋１００は、サイドシール１０４がプレヒートシール１０５と超音波シール１０６を有するため、超音波溶着の利点を生かしつつ、超音波溶着の欠点を仮止めの熱溶着で補うことができる。
　プレヒートシール１０５の形成によりフィルムＦが軟化するので、超音波シール１０６を短時間で形成することができる。
　超音波シール１０６を形成する部位（フィルム包装袋１００の側辺）に厚み方向の段差がある場合でも、プレヒートシール１０５の形成によりフィルムＦが軟化して段差が解消するので、超音波シール１０６を良好に形成することができる。
　超音波シール１０６は、液中シールと呼ばれる方法により形成されることが多い。つまり、超音波シール１０６は、フィルムＦの内部に流動体（内容物Ｘ）を充填した状態で形成される。このような場合には、シール不良やエッジ切れが発生しやすい。しかし、超音波シール１０６の形成に先立って、プレヒートシール１０５を形成しているので、シール不良やエッジ切れが発生しづらい。
　また、プレヒートシール１０５を形成することにより、超音波シール１０６を形成する部位に夾雑物が残留しづらい。このため、超音波シール１０６の形成時に夾雑物の発泡（水蒸気爆発）が起きず、ピンホールやクラック等のシール不良のおそれが少ない。
　したがって、フィルム包装袋１００は、サイドシール１０４の形成効率化や品質安定性が図られる。 In the film packaging bag 100, since the side seal 104 has the preheat seal 105 and the ultrasonic seal 106, the drawbacks of ultrasonic welding can be compensated for by temporary welding while taking advantage of ultrasonic welding.
Since the film F is softened by the formation of the preheat seal 105, the ultrasonic seal 106 can be formed in a short time.
Even if there is a step in the thickness direction at the portion where the ultrasonic seal 106 is formed (the side side of the film packaging bag 100), the film F is softened by the formation of the preheat seal 105 and the step is eliminated. It can be formed well.
The ultrasonic seal 106 is often formed by a method called a submerged seal. That is, the ultrasonic seal 106 is formed in a state where the film F is filled with a fluid (content X). In such a case, poor sealing and broken edges are likely to occur. However, since the preheat seal 105 is formed prior to the formation of the ultrasonic seal 106, it is difficult for a seal defect or edge breakage to occur.
Further, by forming the preheat seal 105, it is difficult for impurities to remain in the portion where the ultrasonic seal 106 is formed. Therefore, foaming of impurities (steam explosion) does not occur when the ultrasonic seal 106 is formed, and there is little possibility of sealing failure such as pinholes and cracks.
Therefore, in the film packaging bag 100, the formation efficiency of the side seal 104 and the quality stability can be improved.
〔縦型製袋充填包装機１〕
　図２は、製袋充填包装機１の概略構成を示す側面図である。
　図３は、充填部３０等を示す正面図である。
　図４は、横シール部６０およびカッター部７０を示す正面図である。
　図５は、横シール部６０およびカッター部７０を示す側面図である。
　図６（ａ）は、ヒーターバー６２の縦断面図、図６（ｂ）は、アンビルバー６７の正面図である。 [Vertical bag making filling and packaging machine 1]
FIG. 2 is a side view showing a schematic configuration of the bag-making filling / packaging machine 1.
FIG. 3 is a front view showing the filling portion 30 and the like.
FIG. 4 is a front view showing the horizontal seal portion 60 and the cutter portion 70.
FIG. 5 is a side view showing the horizontal seal portion 60 and the cutter portion 70.
6 (a) is a vertical sectional view of the heater bar 62, and FIG. 6 (b) is a front view of the anvil bar 67.
　縦型製袋充填包装機１は、帯状のフィルムＦからフィルム包装袋１００を形成すると共に、このフィルム包装袋１００に内容物Ｘを充填する。
　縦型製袋充填包装機１は、帯状のフィルムＦを幅方向に二分割し、この二分割されたそれぞれのフィルムＦからフィルム包装袋１００を製造する。これにより、縦型製袋充填包装機１は、内容物入りフィルム包装袋１００を効率よく生産できる。 The vertical bag-making filling and packaging machine 1 forms a film packaging bag 100 from a strip-shaped film F, and fills the film packaging bag 100 with the contents X.
The vertical bag-making filling / packaging machine 1 divides the strip-shaped film F into two in the width direction, and manufactures the film packaging bag 100 from each of the two divided films F. As a result, the vertical bag-making filling and packaging machine 1 can efficiently produce the film packaging bag 100 containing the contents.
　縦型製袋充填包装機１は、制御部（不図示）により制御されて、フィルムＦを下方向に間欠搬送しながら、内容物Ｘを充填する。
　縦型製袋充填包装機１は、フィルム包装袋１００の内部に内容物Ｘを投入（封入）する。フィルム包装袋１００には、空気を含まずに、内容物Ｘが満注充填される。
　縦型製袋充填包装機１は、内容物入りのフィルム包装袋１００を連続して製造する。 The vertical bag-making filling / packaging machine 1 is controlled by a control unit (not shown) to fill the contents X while intermittently transporting the film F downward.
The vertical bag-making filling / packaging machine 1 puts (encloses) the content X inside the film packaging bag 100. The film packaging bag 100 is fully filled with the contents X without containing air.
The vertical bag-making filling and packaging machine 1 continuously manufactures a film packaging bag 100 containing contents.
　縦型製袋充填包装機１は、後述するＭ字ガイド１２よりも下流側に配置される部材等を二組ずつ備える。こられの部材等は、フィルムＦの搬送方向に沿ってそれぞれ並列に配置される。
　以下の説明では、二分割されたフィルムＦのうち一方（単にフィルムＦと呼ぶ）からフィルム包装袋１００を製造する構造について説明する。 The vertical bag-making filling / packaging machine 1 includes two sets of members and the like arranged on the downstream side of the M-shaped guide 12, which will be described later. These members and the like are arranged in parallel along the transport direction of the film F.
In the following description, a structure for manufacturing the film packaging bag 100 from one of the two divided films F (simply referred to as film F) will be described.
　フィルムＦには、ナイロンやポリエステル等の高強度フィルムを積層したラミネートフィルムが用いられる。フィルムＦは、内面にシール層を有し、内面同士は溶着するが、外面同士は溶着しないように積層される。 For the film F, a laminated film in which a high-strength film such as nylon or polyester is laminated is used. The film F has a sealing layer on the inner surface, and is laminated so that the inner surfaces are welded to each other but the outer surfaces are not welded to each other.
　フィルムＦの長手方向を搬送方向ともいう。フィルムＦの幅方向を横方向ともいう。
　内容物Ｘが充填されるときのフィルムＦの長手方向を上下方向という。上下方向は、鉛直方向であり、下方向がフィルムＦの搬送方向である。
　内容物Ｘが充填されるときのフィルムＦの横（幅）方向を左右方向ともいう。
　内容物Ｘが充填されるときのフィルムＦの厚み方向を前後方向とも呼ぶ。 The longitudinal direction of the film F is also referred to as a transport direction. The width direction of the film F is also referred to as a lateral direction.
The longitudinal direction of the film F when the content X is filled is called the vertical direction. The vertical direction is the vertical direction, and the downward direction is the transport direction of the film F.
The horizontal (width) direction of the film F when the content X is filled is also referred to as a left-right direction.
The thickness direction of the film F when the content X is filled is also referred to as a front-back direction.
　縦型製袋充填包装機１の上下方向は、フィルム包装袋１００の横方向に対応する。
　縦型製袋充填包装機１の前後方向は、フィルム包装袋１００の厚み方向に対応する。
　縦型製袋充填包装機１の左右方向は、フィルム包装袋１００の縦方向に対応する。縦型製袋充填包装機１の右側がフィルム包装袋１００の上部（トップシール１０３）側に対応し、縦型製袋充填包装機１の左側がフィルム包装袋１００の下部（ボトムシール１０１）側に対応する。 The vertical direction of the vertical bag-making filling and packaging machine 1 corresponds to the horizontal direction of the film packaging bag 100.
The front-rear direction of the vertical bag-making filling and packaging machine 1 corresponds to the thickness direction of the film packaging bag 100.
The left-right direction of the vertical bag-making filling and packaging machine 1 corresponds to the vertical direction of the film packaging bag 100. The right side of the vertical bag making filling and packaging machine 1 corresponds to the upper part (top seal 103) side of the film packaging bag 100, and the left side of the vertical bag making filling and packaging machine 1 corresponds to the lower part (bottom seal 101) side of the film packaging bag 100. Corresponds to.
　縦型製袋充填包装機１は、製袋ガイド部１０、縦シール部２０、充填部３０、デザインカッター部４０、フィルム搬送部５０、横シール部６０、カッター部７０を備える。これら各部は、不図示のフレームに支持される。
　フィルムＦは、ロール状に巻かれてフィルム軸３に支持される。 The vertical bag-making filling and packaging machine 1 includes a bag-making guide unit 10, a vertical sealing unit 20, a filling unit 30, a design cutter unit 40, a film transport unit 50, a horizontal sealing unit 60, and a cutter unit 70. Each of these parts is supported by a frame (not shown).
The film F is rolled into a roll and supported by the film shaft 3.
〔製袋ガイド部１０〕
　製袋ガイド部１０は、カッター１１、Ｍ字ガイド１２、二つ折りガイド１３および折り込みガイド１４を備える。
　カッター１１、Ｍ字ガイド１２、二つ折りガイド１３および折り込みガイド１４は、フィルムＦの搬送方向において、この順に配置される。製袋ガイド部１０におけるフィルムＦの送り方向は、前方向（水平方向）である。 [Bag making guide part 10]
The bag making guide portion 10 includes a cutter 11, an M-shaped guide 12, a two-fold guide 13, and a folding guide 14.
The cutter 11, the M-shaped guide 12, the folding guide 13, and the folding guide 14 are arranged in this order in the transport direction of the film F. The feeding direction of the film F in the bag making guide portion 10 is the forward direction (horizontal direction).
　カッター１１は、フィルムＦの搬送経路において、フィルムＦの幅方向の中央位置に配置される。フィルムＦを長手方向に搬送することにより、カッター１１は、フィルムＦを幅方向の中央において二分割しつつ、長手方向に沿って切断する。 The cutter 11 is arranged at the center position in the width direction of the film F in the transport path of the film F. By transporting the film F in the longitudinal direction, the cutter 11 cuts the film F along the longitudinal direction while dividing the film F into two at the center in the width direction.
　Ｍ字ガイド１２は、フィルムＦの搬送方向に対して主面が垂直になるように配置された板状の部材である。Ｍ字ガイド１２は、二分割されたフィルムＦをそれぞれ９０°捩じった状態でフィルムＦの幅方向外側にガイドする。 The M-shaped guide 12 is a plate-shaped member arranged so that the main surface is perpendicular to the transport direction of the film F. The M-shaped guide 12 guides the film F divided into two parts outward in the width direction in a state of being twisted by 90 °.
　二つ折りガイド１３は、三角形の板状の部材である。二つ折りガイド１３は、主面と２つの斜辺を利用して、フィルムＦを幅方向の中央で二つ折りする。
　折り込みガイド１４は、二つ折りガイド１３に隣接して配置された三角形の板状の部材である。折り込みガイド１４は、二つ折りされたフィルムＦの山折り部分を谷折りして、Ｍ字形に折り込む。つまり、二つ折りガイド１３と折り込みガイド１４は、フィルム包装袋１００のガセット部１００ａを形作る。 The bi-fold guide 13 is a triangular plate-shaped member. The bi-fold guide 13 folds the film F in half at the center in the width direction using the main surface and the two hypotenuses.
The folding guide 14 is a triangular plate-shaped member arranged adjacent to the folding guide 13. The folding guide 14 folds the mountain-folded portion of the film F folded in half into an M-shape. That is, the folding guide 13 and the folding guide 14 form the gusset portion 100a of the film packaging bag 100.
　製袋ガイド部１０は、二分割されたフィルムＦの搬送をガイドするガイドローラ１５，１６をさらに備える。
　ガイドローラ１５は、Ｍ字ガイド１２と二つ折りガイド１３との間に配置されて、外側に向いたフィルムＦを内側に向かわせる。
　一対のガイドローラ１６は、折り込みガイド１４の下流側に配置されて、二つ折りされたフィルムＦを挟み込む。 The bag making guide unit 10 further includes guide rollers 15 and 16 for guiding the transfer of the film F divided into two.
The guide roller 15 is arranged between the M-shaped guide 12 and the bi-fold guide 13, and causes the film F facing outward to face inward.
The pair of guide rollers 16 are arranged on the downstream side of the folding guide 14 and sandwich the film F folded in half.
〔縦シール部２０〕
　縦シール部２０は、ヒーターバーを用いて、フィルムＦを縦方向に沿って熱溶着する。縦シール部２０は、フィルムＦの間欠搬送に同期して、間欠的に駆動する。
　縦シール部２０は、フィルムＦをチューブ状に形成する。このチューブフィルムをフィルムＦｃと呼ぶ。 [Vertical seal portion 20]
The vertical seal portion 20 heat-welds the film F along the vertical direction using a heater bar. The vertical seal portion 20 is intermittently driven in synchronization with the intermittent transfer of the film F.
The vertical sealing portion 20 forms the film F in a tubular shape. This tube film is called a film Fc.
　縦シール部２０は、ボトムシール部２１、ボトム補強シール部２２、トップシール部２４およびトップ冷却部２５を備える。
　フィルムＦの搬送方向において、ボトムシール部２１、ボトム補強シール部２２、トップシール部２４およびトップ冷却部２５が、この順に配置される。 The vertical seal portion 20 includes a bottom seal portion 21, a bottom reinforcing seal portion 22, a top seal portion 24, and a top cooling portion 25.
In the transport direction of the film F, the bottom seal portion 21, the bottom reinforcing seal portion 22, the top seal portion 24, and the top cooling portion 25 are arranged in this order.
　ボトムシール部２１は、フィルムＦのガセット部１００ａを熱溶着して、フィルムＦにボトムシール１０１を形成する。
　ボトム補強シール部２２は、フィルムＦのガセット部１００ａを熱溶着して、フィルムＦにボトム補強シール１０２を形成する。ボトム補強シール部２２は、フィルムＦの搬送方向において、ボトムシール部２１の下流側（前方向）に隣接して配置される。 The bottom seal portion 21 heat-welds the gusset portion 100a of the film F to form the bottom seal 101 on the film F.
The bottom reinforcing seal portion 22 heat-welds the gusset portion 100a of the film F to form the bottom reinforcing seal 102 on the film F. The bottom reinforcing seal portion 22 is arranged adjacent to the downstream side (front direction) of the bottom seal portion 21 in the transport direction of the film F.
　トップシール部２４は、フィルムＦの側端同士を熱溶着して、フィルムＦにトップシール１０３を形成する。
　トップ冷却部２５は、トップシール１０３を冷却する。トップ冷却部２５は、フィルムＦの搬送方向において、トップシール部２４の下流側（下方向）に隣接して配置される。
　トップシール１０３をトップ冷却部２５で冷却することにより、フィルムＦｃを直ちに次の工程に移行させることができる。 The top seal portion 24 heat-welds the side ends of the film F to form the top seal 103 on the film F.
The top cooling unit 25 cools the top seal 103. The top cooling portion 25 is arranged adjacent to the downstream side (downward direction) of the top seal portion 24 in the transport direction of the film F.
By cooling the top seal 103 with the top cooling unit 25, the film Fc can be immediately transferred to the next step.
　ボトム補強シール部２２とトップシール部２４の間にガイドローラ２３が配置される。このガイドローラ２３によって、フィルムＦの搬送方向が前（水平）方向から下（鉛直）方向に変更される。
　ボトムシール部２１、ボトム補強シール部２２ではフィルムＦが水平方向（前方向）に送られ、トップシール部２４、トップ冷却部２５ではフィルムＦが鉛直方向（下方向）に送られる。 The guide roller 23 is arranged between the bottom reinforcing seal portion 22 and the top seal portion 24. The guide roller 23 changes the transport direction of the film F from the front (horizontal) direction to the downward (vertical) direction.
The film F is fed horizontally (forward) in the bottom seal portion 21 and the bottom reinforcing seal portion 22, and the film F is fed in the vertical direction (downward) in the top seal portion 24 and the top cooling portion 25.
〔充填部３０〕
　充填部３０は、投入パイプ３１等を備え、フィルムＦｃの内部に、内容物（流動体）Ｘを投入する。
　投入パイプ３１は、フィルムＦの搬送方向において、ボトムシール部２１とトップシール部２４の間に配置される。投入パイプ３１は、フィルムＦの側方から内面側に挿入され、下向きに曲がってフィルムＦｃの内側に入り込む。投入パイプ３１は、下方向に向かって延びて、その先端（吐出口）が横シール部６０の直上に配置される。 [Filling section 30]
The filling unit 30 is provided with a charging pipe 31 and the like, and the content (fluid) X is charged inside the film Fc.
The charging pipe 31 is arranged between the bottom seal portion 21 and the top seal portion 24 in the transport direction of the film F. The input pipe 31 is inserted from the side of the film F to the inner surface side, bends downward, and enters the inside of the film Fc. The input pipe 31 extends downward, and its tip (discharge port) is arranged directly above the lateral seal portion 60.
〔デザインカッター部４０〕
　デザインカッター部４０は、フィルムＦの搬送方向において、トップシール部２４の下流（下方向）に配置される。
　デザインカッター部４０は、ボトムカッター４１、トップカッター４２を備える。
　ボトムカッター４１は、ボトムシール部２１、ボトム補強シール部２２によって形成されたボトムシール１０１とボトム補強シール１０２の形状を整える。
　トップカッター４２は、トップシール部２４によって形成されたトップシール１０３の形状を整える。 [Design cutter section 40]
The design cutter portion 40 is arranged downstream (downward) of the top seal portion 24 in the transport direction of the film F.
The design cutter unit 40 includes a bottom cutter 41 and a top cutter 42.
The bottom cutter 41 arranges the shapes of the bottom seal 101 and the bottom reinforcing seal 102 formed by the bottom seal portion 21 and the bottom reinforcing seal portion 22.
The top cutter 42 adjusts the shape of the top seal 103 formed by the top seal portion 24.
〔フィルム搬送部５０〕
　フィルム搬送部５０は、フィルムＦの搬送方向において、デザインカッター部４０の下流、かつ、投入パイプ３１の先端（内容物Ｘの投入位置）の上流に配置される。
　フィルム搬送部５０は、一対二組の搬送ローラー５１を備える。一対の搬送ローラー５１は、フィルムＦｃを挟んで前後方向（フィルムＦｃの厚み方向）に密接配置される。フィルムＦｃの幅（左右）方向の両側に、一対の搬送ローラー５１がそれぞれ配置される。
　フィルム搬送部５０は、これら搬送ローラー５１がフィルムＦｃを挟持しながら回転することで、フィルムＦｃを下方に搬送する（送り出す）。 [Film carrier 50]
The film transport unit 50 is arranged downstream of the design cutter unit 40 and upstream of the tip of the charging pipe 31 (loading position of the content X) in the transport direction of the film F.
The film transport unit 50 includes a pair of transport rollers 51. The pair of transport rollers 51 are closely arranged in the front-rear direction (thickness direction of the film Fc) with the film Fc interposed therebetween. A pair of transport rollers 51 are arranged on both sides of the film Fc in the width (left and right) direction.
The film transport unit 50 transports (feeds) the film Fc downward by rotating the transport rollers 51 while sandwiching the film Fc.
〔横シール部６０〕
　横シール部６０は、投入パイプ３１の先端の下方に配置されて、フィルムＦｃを幅方向に亘って溶着する。横シール部６０は、フィルムＦｃにサイドシール１０４を形成する。
　横シール部６０は、フィルムＦの間欠搬送に同期して、間欠的に駆動する。これにより、フィルムＦｃには、サイドシール１０４が上下方向において一定間隔に形成される。
　フィルムＦｃにサイドシール１０４を形成（封止）することにより、フィルムＦｃに充填された内容物Ｘが、サイドシール１０４を境にして上下に分断される。また、フィルムＦｃにサイドシール１０４を形成すると、フィルムＦｃの下端に袋体Ｆａが出現する。この袋体Ｆａには、内容物Ｘが封入（満注充填）される。 [Horizontal seal portion 60]
The lateral seal portion 60 is arranged below the tip of the input pipe 31 and welds the film Fc over the width direction. The lateral seal portion 60 forms a side seal 104 on the film Fc.
The horizontal seal portion 60 is intermittently driven in synchronization with the intermittent transfer of the film F. As a result, side seals 104 are formed on the film Fc at regular intervals in the vertical direction.
By forming (sealing) the side seal 104 on the film Fc, the content X filled in the film Fc is divided into upper and lower parts with the side seal 104 as a boundary. Further, when the side seal 104 is formed on the film Fc, the bag body Fa appears at the lower end of the film Fc. The contents X are enclosed (full-filled) in the bag body Fa.
　横シール部６０は、プレヒートシール部６１、超音波シール部６５を備える。
　プレヒートシール部６１は、ヒーターバー６２、ヒーター受けバー６３を用いて、フィルムＦｃを横方向に亘って熱溶着する。プレヒートシール部６１は、サイドシール１０４のうちのプレヒートシール１０５を形成する。
　超音波シール部６５は、ホーンバー６６、アンビルバー６７を用いて、フィルムＦｃを横方向に亘って超音波溶着する。超音波シール部６５は、サイドシール１０４のうちの超音波シール１０６を形成する。 The horizontal seal portion 60 includes a preheat seal portion 61 and an ultrasonic seal portion 65.
The preheat seal portion 61 heat-welds the film Fc laterally using the heater bar 62 and the heater receiving bar 63. The preheat seal portion 61 forms the preheat seal 105 of the side seals 104.
The ultrasonic sealing unit 65 ultrasonically welds the film Fc in the lateral direction using the horn bar 66 and the anvil bar 67. The ultrasonic seal portion 65 forms the ultrasonic seal 106 of the side seal 104.
　フィルムＦｃの搬送（下）方向において、プレヒートシール部６１、超音波シール部６５が、この順に配置される。
　上下方向におけるプレヒートシール部６１と超音波シール部６５の配置間隔は、フィルムＦｃの間欠搬送距離に一致する。このため、超音波シール部６５は、プレヒートシール部６１がフィルムＦｃ同士を熱溶着した部位を、さらに超音波で溶着する。プレヒートシール１０５に対して超音波シール１０６が重畳して形成される。
　つまり、横シール部６０は、フィルムＦｃの厚み方向において、フィルムＦ同士を二重（二回）に溶着する。 The preheat sealing portion 61 and the ultrasonic sealing portion 65 are arranged in this order in the transport (downward) direction of the film Fc.
The arrangement interval between the preheat sealing portion 61 and the ultrasonic sealing portion 65 in the vertical direction corresponds to the intermittent transport distance of the film Fc. Therefore, the ultrasonic sealing unit 65 further welds the portion where the film Fc is heat-welded to each other by the preheat sealing unit 61 by ultrasonic waves. The ultrasonic seal 106 is formed by superimposing the ultrasonic seal 106 on the preheat seal 105.
That is, the horizontal sealing portion 60 welds the films F to each other twice (twice) in the thickness direction of the film Fc.
　プレヒートシール部６１は、フィルムＦ同士（フィルムＦｃ）を加熱して不完全に溶着する。プレヒートシール部６１は、フィルムＦ同士を熱溶着して仮止めする。
　プレヒートシール部６１は、縦シール部２０（ボトムシール部２１、ボトム補強シール部２２、トップシール部２４）に比べて、加熱時間が短い。このため、プレヒートシール１０５は、ボトムシール１０１、ボトム補強シール１０２、トップシール１０３に比べて溶着強度が低い。フィルム包装袋１００に外力を加えるとプレヒートシール部６１が破壊（リーク）されることもある。
　なお、内容物入りフィルム包装袋１００の製造中（超音波シール１０６が形成されるまでの間）には、フィルム包装袋１００に外力が加わらないので、プレヒートシール１０５が破壊されることはない。 The preheat seal portion 61 heats the films F to each other (film Fc) and incompletely welds them. The preheat seal portion 61 heat-welds the films F to each other and temporarily fixes them.
The preheat seal portion 61 has a shorter heating time than the vertical seal portion 20 (bottom seal portion 21, bottom reinforcing seal portion 22, top seal portion 24). Therefore, the preheat seal 105 has a lower welding strength than the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103. When an external force is applied to the film packaging bag 100, the preheat seal portion 61 may be destroyed (leaked).
During the production of the film packaging bag 100 containing the contents (until the ultrasonic seal 106 is formed), no external force is applied to the film packaging bag 100, so that the preheat seal 105 is not destroyed.
　超音波シール部６５は、プレヒートシール１０５に超音波を与えて、フィルムＦ同士をさらに溶着する。超音波シール部６５は、フィルムＦ同士を十分に溶着させて超音波シール１０６を形成する。超音波シール１０６の溶着強度は、ボトムシール１０１、ボトム補強シール１０２、トップシール１０３と同等である。 The ultrasonic seal unit 65 applies ultrasonic waves to the preheat seal 105 to further weld the films F to each other. The ultrasonic seal portion 65 sufficiently welds the films F to each other to form the ultrasonic seal 106. The welding strength of the ultrasonic seal 106 is equivalent to that of the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103.
　ヒーターバー６２、ヒーター受けバー６３、ホーンバー６６、アンビルバー６７は、それぞれ左右方向に直線状に延びる。ヒーターバー６２、ヒーターバー６６のシール形成面の幅（シール幅）は、一定である。
　ヒーターバー６２およびヒーター受けバー６３のシール幅は、サイドシール１０４の（下方向）幅に等しい。ホーンバー６６およびアンビルバー６７は、ヒーターバー６２およびヒーター受けバー６３よりもシール幅が狭い。例えば、ホーンバー６６およびアンビルバー６７はシール幅が１５ｍｍ、ヒーターバー６２およびヒーター受けバー６３はシール幅が１８ｍｍである。ホーンバー６６およびアンビルバー６７のシール幅は、ヒーターバー６２およびヒーター受けバー６３のシール幅の５０～９０％が好ましい。 The heater bar 62, the heater receiving bar 63, the horn bar 66, and the anvil bar 67 each extend linearly in the left-right direction. The width (seal width) of the seal forming surface of the heater bar 62 and the heater bar 66 is constant.
The seal width of the heater bar 62 and the heater receiving bar 63 is equal to the (downward) width of the side seal 104. The horn bar 66 and the anvil bar 67 have a narrower seal width than the heater bar 62 and the heater receiving bar 63. For example, the horn bar 66 and the anvil bar 67 have a seal width of 15 mm, and the heater bar 62 and the heater receiving bar 63 have a seal width of 18 mm. The seal width of the horn bar 66 and the anvil bar 67 is preferably 50 to 90% of the seal width of the heater bar 62 and the heater receiving bar 63.
　ヒーターバー６２とホーンバー６６の上下方向の距離（中心間距離）は、フィルムＦｃの間欠搬送距離に一致する。このため、プレヒートシール１０５に対して超音波シール１０６が完全に重畳配置される。超音波シール１０６は、プレヒートシール１０５の上下方向の中央に重畳する。超音波シール１０６は、プレヒートシール１０５に対して上下方向において対称に重畳する。超音波シール１０６の上下方向にプレヒートシール１０５がそれぞれ２ｍｍずつ食み出るように配置される。 The vertical distance (distance between centers) between the heater bar 62 and the horn bar 66 corresponds to the intermittent transport distance of the film Fc. Therefore, the ultrasonic seal 106 is completely superposed on the preheat seal 105. The ultrasonic seal 106 is superimposed on the center of the preheat seal 105 in the vertical direction. The ultrasonic seal 106 superimposes symmetrically on the preheat seal 105 in the vertical direction. The preheat seal 105 is arranged so as to protrude by 2 mm in each of the vertical directions of the ultrasonic seal 106.
　図６（ａ）に示すように、ヒーターバー６２は、シール形成面が平坦ではなく、シール長さ方向（左右方向）の全長に亘って、シール幅方向（上下方向）の中央がフィルムＦｃに向かって僅かに突出（傾斜）する。
　内容物ＸがフィルムＦｃに投入されている状態で、ヒーターバー６２とヒーター受けバー６３でフィルムＦｃを挟持することにより、内容物Ｘが上下方向に分断される。このとき、ヒーターバー６２のシール形成面が上下方向においてそれぞれ僅かに傾斜しているので、内容物Ｘが上下方向に押し出される。つまり、ヒーターバー６２は、プレヒートシール１０５を形成する部位から内容物Ｘを排除する。このため、プレヒートシール１０５には夾雑物（内容物Ｘ）が殆ど残留しない。
　したがって、超音波シール部６５がプレヒートシール１０５に超音波を与えるときに、夾雑物が発泡（水蒸気爆発）してピンホールやクラック等のシール不良が発生することを防止できる。 As shown in FIG. 6A, in the heater bar 62, the seal forming surface is not flat, and the center of the seal width direction (vertical direction) is the film Fc over the entire length in the seal length direction (horizontal direction). It slightly protrudes (tilts) toward it.
By sandwiching the film Fc between the heater bar 62 and the heater receiving bar 63 while the content X is charged into the film Fc, the content X is divided in the vertical direction. At this time, since the seal forming surface of the heater bar 62 is slightly inclined in the vertical direction, the content X is pushed out in the vertical direction. That is, the heater bar 62 removes the content X from the portion forming the preheat seal 105. Therefore, almost no impurities (contents X) remain on the preheat seal 105.
Therefore, when the ultrasonic seal portion 65 applies ultrasonic waves to the preheat seal 105, it is possible to prevent impurities from foaming (steam explosion) and causing sealing defects such as pinholes and cracks.
　図６（ｂ）に示すように、アンビルバー６７は、シール形成面が一つの平面ではなく、シール長さ方向（左右方向）に延びる一対の平行な帯形である。アンビルバー６７は、シール幅方向（上下方向）の中央に非シール形成領域６８を有する。この非シール形成領域６８の幅は、例えば１ｍｍである。非シール形成領域６８の幅は、アンビルバー６７の幅の２０％以下が好ましい。
　これにより、超音波シール部６５がプレヒートシール１０５に重ねて超音波シール１０６を形成すると、シール幅方向の中央にシール長さ方向に延びるプレヒートシール１０５が残留する。このプレヒートシール１０５は、非シール形成領域６８に対応するので、シール幅が１ｍｍである。 As shown in FIG. 6B, the anvil bar 67 is not a single plane but a pair of parallel strips extending in the seal length direction (left-right direction). The anvil bar 67 has a non-seal forming region 68 in the center in the seal width direction (vertical direction). The width of the non-seal forming region 68 is, for example, 1 mm. The width of the non-seal forming region 68 is preferably 20% or less of the width of the anvil bar 67.
As a result, when the ultrasonic seal portion 65 is superposed on the preheat seal 105 to form the ultrasonic seal 106, the preheat seal 105 extending in the seal length direction remains in the center in the seal width direction. Since the preheat seal 105 corresponds to the non-seal forming region 68, the seal width is 1 mm.
　超音波シール１０６のシール幅方向の中央に非シール形成領域６８を設けるのは、サイドシール１０４をカッター部７０で切断したときに、その切断面に夾雑物を露出させないためである。プレヒートシール１０５に夾雑物が残留していたとしても、プレヒートシール１０５をホーンバー６６とアンビルバー６７で把持（押圧）すると、夾雑物がホーンバー６６を避けるように移動する。つまり、夾雑物がアンビルバー６７の非シール形成領域６８に移動する。このため、超音波シール１０６には夾雑物が残留しない。
　このため、後工程でサイドシール１０４（超音波シール１０６）をカッター部７０で切断しても、その切断面に夾雑物が露出しない。したがって、フィルム包装袋１００が夾雑物に汚染（カビの発生等）されることを防止できる。また、カッター部７０（カッター７１）の汚染も防止できる。 The non-seal forming region 68 is provided at the center of the ultrasonic seal 106 in the seal width direction so that when the side seal 104 is cut by the cutter portion 70, impurities are not exposed on the cut surface. Even if the contaminants remain on the preheat seal 105, when the preheat seal 105 is gripped (pressed) by the horn bar 66 and the anvil bar 67, the contaminants move so as to avoid the horn bar 66. That is, impurities move to the non-seal forming region 68 of the anvil bar 67. Therefore, no contaminants remain on the ultrasonic seal 106.
Therefore, even if the side seal 104 (ultrasonic seal 106) is cut by the cutter portion 70 in the subsequent process, impurities are not exposed on the cut surface. Therefore, it is possible to prevent the film packaging bag 100 from being contaminated with impurities (mold generation, etc.). In addition, contamination of the cutter portion 70 (cutter 71) can be prevented.
　横シール部６０は、プレヒートシール１０５を冷却する冷却部を備えない。つまり、プレヒートシール部６１の下流側に冷却部を備えない。超音波シール部６５がプレヒートシール１０５を冷却する冷却部として機能するからである。
　ホーンバー６６とアンビルバー６７は、それぞれ金属製であるため、フィルムＦｃよりも低温になる。さらにアンビルバー６７の内部には冷却水が供給されて、冷却されている。このため、ホーンバー６６とアンビルバー６７でフィルムＦｃを挟持すると、フィルムＦｃ（プレヒートシール１０５）の熱を奪って冷却させる。しかも、プレヒートシール部６１の加熱時間が短いので、超音波シール部６５は、プレヒートシール１０５を急速に冷却固化させることができる。
　このように、横シール部６０には冷却部が不要であるため、縦型製袋充填包装機１は、装置の高さを従来通りに抑えることができる。 The horizontal seal portion 60 does not include a cooling portion for cooling the preheat seal 105. That is, the cooling unit is not provided on the downstream side of the preheat seal unit 61. This is because the ultrasonic seal unit 65 functions as a cooling unit for cooling the preheat seal 105.
Since the horn bar 66 and the anvil bar 67 are each made of metal, the temperature is lower than that of the film Fc. Further, cooling water is supplied to the inside of the anvil bar 67 to cool it. Therefore, when the film Fc is sandwiched between the horn bar 66 and the anvil bar 67, the heat of the film Fc (preheat seal 105) is taken away and cooled. Moreover, since the heating time of the preheat seal portion 61 is short, the ultrasonic seal portion 65 can rapidly cool and solidify the preheat seal 105.
As described above, since the horizontal seal portion 60 does not require a cooling portion, the vertical bag-making filling and packaging machine 1 can suppress the height of the apparatus as before.
〔カッター部７０〕
　カッター部７０は、カッターバー７１を有し、フィルムＦｃのサイドシール１０４を左右方向（シール長さ方向）に亘って切断する。これにより、フィルムＦｃの下端に形成された袋体ＦａがフィルムＦｃから切り落とされる。内容物入りフィルム包装袋１００が個別に切り落とされる。 [Cutter part 70]
The cutter portion 70 has a cutter bar 71 and cuts the side seal 104 of the film Fc in the left-right direction (seal length direction). As a result, the bag body Fa formed at the lower end of the film Fc is cut off from the film Fc. The film packaging bag 100 containing the contents is individually cut off.
　カッター部７０は、サイドシール１０４の上下方向の中央を帯状に切断する。
　上述したように、横シール部６０は、３つのプレヒートシール１０５と２つの超音波シール１０６が交互に配置されたサイドシール１０４を形成する。カッター部７０は、２つの超音波シール１０６の間に配置されたプレヒートシール１０５を完全に切り落とす。このとき、カッター部７０は、２つの超音波シール１０６の一部もそれぞれ切り落とすように、サイドシール１０４を切断する。
　したがって、内容物入りフィルム包装袋１００のサイドシール１０４は、外側（切断面）が超音波シール１０６のみになる。
　２つの超音波シール１０６の間に配置されたプレヒートシール１０５には切断面は形成されない。このため、２つの超音波シール１０６の間のプレヒートシール１０５に夾雑物が残留していたとしても、カッターバー７１は、夾雑物に汚染されない。 The cutter portion 70 cuts the center of the side seal 104 in the vertical direction in a strip shape.
As described above, the lateral seal portion 60 forms a side seal 104 in which three preheat seals 105 and two ultrasonic seals 106 are alternately arranged. The cutter portion 70 completely cuts off the preheat seal 105 arranged between the two ultrasonic seals 106. At this time, the cutter portion 70 cuts the side seal 104 so as to cut off a part of each of the two ultrasonic seals 106.
Therefore, the side seal 104 of the film packaging bag 100 containing the contents has only the ultrasonic seal 106 on the outside (cut surface).
No cut surface is formed on the preheat seal 105 placed between the two ultrasonic seals 106. Therefore, even if the contaminants remain on the preheat seal 105 between the two ultrasonic seals 106, the cutter bar 71 is not contaminated with the contaminants.
　縦型製袋充填包装機１は、横シール部６０がプレヒートシール部６１と超音波シール部６５を備えるため、超音波溶着の利点を生かしつつ、超音波溶着の欠点を仮止めの熱溶着で補うことができる
　プレヒートシール部６１がプレヒートシール１０５を形成するとフィルムＦが軟化するので、超音波シール部６５が超音波シール１０６を短時間で形成することができる。
　超音波シール部６５が超音波シール１０６を形成する部位に厚み方向の段差がある場合でも、プレヒートシール部６１がプレヒートシール１０５を形成するによりフィルムＦが軟化して段差が解消する。このため、超音波シール部６５が超音波シール１０６を良好に形成することができる。
　横シール部６０は、フィルムＦｃに内容物Ｘを充填した状態でサイドシール１０４を形成する（液中シール）。このような場合には、超音波シール１０６にシール不良やエッジ切れが発生しやすい。しかし、超音波シール部６５が超音波シール１０６を形成するに先立って、プレヒートシール部６１がプレヒートシール１０５を形成するので、シール不良やエッジ切れが発生しづらい。
　プレヒートシール部６１がプレヒートシール１０５を形成することにより、超音波シール部６５が超音波シール１０６を形成する部位（プレヒートシール１０５）に夾雑物が残留しづらい。このため、超音波シール部６５が超音波シール１０６を形成する時に夾雑物の発泡（水蒸気爆発）が起きず、ピンホールやクラック等のシール不良のおそれが少ない。
　したがって、縦型製袋充填包装機１は、フィルム包装袋１００（サイドシール１０４）の形成効率化や品質安定性を図ることができる。 In the vertical bag-making filling and packaging machine 1, since the horizontal sealing portion 60 includes the preheat sealing portion 61 and the ultrasonic sealing portion 65, the drawbacks of ultrasonic welding are temporarily fixed by heat welding while taking advantage of ultrasonic welding. When the preheat seal portion 61 that can be supplemented forms the preheat seal 105, the film F is softened, so that the ultrasonic seal portion 65 can form the ultrasonic seal 106 in a short time.
Even if there is a step in the thickness direction at the portion where the ultrasonic seal portion 65 forms the ultrasonic seal 106, the film F is softened by the preheat seal portion 61 forming the preheat seal 105, and the step is eliminated. Therefore, the ultrasonic seal portion 65 can satisfactorily form the ultrasonic seal 106.
The horizontal seal portion 60 forms a side seal 104 in a state where the film Fc is filled with the content X (seal in liquid). In such a case, the ultrasonic seal 106 is likely to have a defective seal or a broken edge. However, since the preheat seal portion 61 forms the preheat seal 105 before the ultrasonic seal portion 65 forms the ultrasonic seal 106, it is difficult for a seal defect or edge breakage to occur.
Since the preheat seal portion 61 forms the preheat seal 105, impurities are less likely to remain in the portion (preheat seal 105) where the ultrasonic seal portion 65 forms the ultrasonic seal 106. Therefore, when the ultrasonic seal portion 65 forms the ultrasonic seal 106, foaming of impurities (steam explosion) does not occur, and there is little possibility of sealing failure such as pinholes and cracks.
Therefore, the vertical bag-making filling and packaging machine 1 can improve the forming efficiency and quality stability of the film packaging bag 100 (side seal 104).
〔内容物入りフィルム包装袋１００の製造方法〕
　次に、縦型製袋充填包装機１を用いて、内容物入りフィルム包装袋１００を製造する工程について説明する。 [Manufacturing method of film packaging bag 100 containing contents]
Next, a process of manufacturing the film packaging bag 100 containing the contents by using the vertical bag-making filling and packaging machine 1 will be described.
〈フィルム搬送工程Ｓ１、製袋ガイド工程Ｓ２〉
　まず、フィルム軸３に支持されたロールからフィルムＦが繰り出され、フィルム搬送部５０によって製袋ガイド部１０に向かって間欠搬送される。
　そして、フィルムＦは、製袋ガイド部１０を通過することによって、幅方向に二分割され、さらにそれぞれ二つ折りにされる。 <Film transport process S1, bag making guide process S2>
First, the film F is unwound from the roll supported by the film shaft 3, and is intermittently conveyed by the film conveying section 50 toward the bag making guide section 10.
Then, the film F is divided into two in the width direction by passing through the bag making guide portion 10, and is further folded in half.
〈縦シール工程Ｓ３〉
　次に、フィルムＦは、縦シール部２０に送られる。縦シール部２０では、フィルムＦは、まず、ボトムシール部２１とボトム補強シール部２２によりボトムシール１０１とボトム補強シール１０２が形成される。
　その後、フィルムＦは、ガイドローラ２３を経由して下方に送られる。
　さらに、フィルムＦは、トップシール部２４に送られて、トップシール１０３が形成する。これにより、フィルムＦは、チューブ状（フィルムＦｃ）になる。
　縦シール部２０（ボトムシール部２１、ボトム補強シール部２２、トップシール部２４）におけるフィルム加熱条件は、例えば、加熱温度が１３０℃、加熱時間が０．７秒である。
　その後、フィルムＦｃは、トップ冷却部２５に送られて、ボトムシール１０１、ボトム補強シール１０２、トップシール１０３が冷却固化される。 <Vertical sealing process S3>
Next, the film F is sent to the vertical sealing portion 20. In the vertical seal portion 20, the film F first forms a bottom seal 101 and a bottom reinforcing seal 102 by the bottom seal portion 21 and the bottom reinforcing seal portion 22.
After that, the film F is fed downward via the guide roller 23.
Further, the film F is sent to the top seal portion 24 to form the top seal 103. As a result, the film F becomes tubular (film Fc).
The film heating conditions in the vertical seal portion 20 (bottom seal portion 21, bottom reinforcing seal portion 22, top seal portion 24) are, for example, a heating temperature of 130 ° C. and a heating time of 0.7 seconds.
After that, the film Fc is sent to the top cooling unit 25, and the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103 are cooled and solidified.
〈デザインカット工程Ｓ４〉
　次に、フィルムＦｃは、デザインカッター部４０に送られて、ボトムシール１０１、ボトム補強シール１０２およびトップシール１０３が所定形状にカットされる。つまり、ボトムシール１０１、ボトム補強シール１０２およびトップシール１０３の形状が整えられる。 <Design cut process S4>
Next, the film Fc is sent to the design cutter unit 40, and the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103 are cut into a predetermined shape. That is, the shapes of the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103 are arranged.
〈充填工程Ｓ５〉
　次に、フィルムＦｃは、充填部３０（投入パイプ３１の先端）に送られて、流動体である内容物Ｘが充填される。 <Filling step S5>
Next, the film Fc is sent to the filling portion 30 (the tip of the charging pipe 31) to be filled with the content X which is a fluid.
〈横シール工程Ｓ６〉
　次に、フィルムＦｃは、さらに下方向に送られて、横シール部６０によるシールが行われる。フィルムＦｃは、横シール部６０において左右（縦）方向に亘ってシールされて、サイドシール１０４が形成される。 <Horizontal sealing process S6>
Next, the film Fc is further sent downward to be sealed by the lateral sealing portion 60. The film Fc is sealed in the horizontal seal portion 60 in the left-right (longitudinal) direction to form the side seal 104.
〈プレヒートシール工程Ｓ６１〉
　横シール部６０では、まず、フィルムＦｃはプレヒートシール部６１に送られて、プレヒートシール１０５が形成される。
　プレヒートシール部６１におけるフィルム加熱条件は、例えば、加熱温度が１３０℃、加熱時間が０．４秒である。なお、フィルム加熱条件は、フィルムの種類や充填物によって、加熱条件は異なる。
　プレヒートシール部６１のフィルム加熱時間は、縦シール部２０のフィルム加熱時間が０．７秒よりも短い。このため、プレヒートシール１０５は、ボトムシール１０１、ボトム補強シール１０２、トップシール１０３に比べて溶着強度が低い。プレヒートシール１０５は、仮止めとして機能する。 <Preheat sealing process S61>
In the horizontal seal portion 60, first, the film Fc is sent to the preheat seal portion 61 to form the preheat seal 105.
The film heating conditions in the preheat seal portion 61 are, for example, a heating temperature of 130 ° C. and a heating time of 0.4 seconds. The film heating conditions differ depending on the type of film and the filling material.
The film heating time of the preheat sealing portion 61 is shorter than the film heating time of the vertical sealing portion 20 of 0.7 seconds. Therefore, the preheat seal 105 has a lower welding strength than the bottom seal 101, the bottom reinforcing seal 102, and the top seal 103. The preheat seal 105 functions as a temporary fixing.
　フィルムＦｃにプレヒートシール１０５を形成することにより、フィルムＦｃに充填された内容物Ｘがプレヒートシール１０５を境にして上下に分断される。
　プレヒートシール部６１のヒーターバー６２は、シール形成面が上下方向にそれぞれ僅かに傾斜している。このため、内容物Ｘが上下方向に押しやられる。したがって、プレヒートシール１０５には夾雑物（内容物Ｘ）が殆ど残留しない。
　また、フィルムＦｃにサイドシール１０４を形成することにより、フィルムＦｃの下端に袋体Ｆａが出現する。この袋体Ｆａには、内容物Ｘが封入（満注充填）される。 By forming the preheat seal 105 on the film Fc, the content X filled in the film Fc is divided into upper and lower parts with the preheat seal 105 as a boundary.
The heater bar 62 of the preheat seal portion 61 has a seal forming surface slightly inclined in the vertical direction. Therefore, the content X is pushed up and down. Therefore, almost no impurities (contents X) remain on the preheat seal 105.
Further, by forming the side seal 104 on the film Fc, the bag body Fa appears at the lower end of the film Fc. The contents X are enclosed (full-filled) in the bag body Fa.
〈超音波シール工程Ｓ６２〉
　横シール部６０では、続いて、フィルムＦｃは超音波シール部６５に送られて、超音波シール１０６が形成される。
　超音波シール１０６は、プレヒートシール１０５に重畳して形成される。超音波シール１０６は、プレヒートシール１０５にさらに超音波を与えて溶着することで形成される。
　超音波シール部６５は、超音波シール１０６を形成するときに、フィルムＦ同士を十分に溶着する。超音波シール部６５における振動条件は、例えば、周波数３０ｋＨｚ、振動時間が０．３秒である。
　これにより、フィルムＦｃは、サイドシール１０４により完全にシールされる。 <Ultrasonic sealing process S62>
At the lateral seal portion 60, the film Fc is subsequently sent to the ultrasonic seal portion 65 to form the ultrasonic seal 106.
The ultrasonic seal 106 is formed so as to be superimposed on the preheat seal 105. The ultrasonic seal 106 is formed by further applying ultrasonic waves to the preheat seal 105 and welding the preheat seal 105.
The ultrasonic seal portion 65 sufficiently welds the films F to each other when forming the ultrasonic seal 106. The vibration conditions in the ultrasonic seal unit 65 are, for example, a frequency of 30 kHz and a vibration time of 0.3 seconds.
Thereby, the film Fc is completely sealed by the side seal 104.
　このように、横シール部６０は、３つのプレヒートシール１０５と２つの超音波シール１０６が交互に配置されたサイドシール１０４を形成する。
　プレヒートシール部６１が形成したプレヒートシール１０５に夾雑物が残留していたとしても、アンビルバー６７がプレヒートシール１０５を把持（押圧）すると、夾雑物がアンビルバー６７を避けるように移動する。このため、超音波シール１０６に夾雑物が残留しない。
　したがって、後工程でサイドシール１０４（超音波シール１０６）をカッター部７０で切断したときに、その切断面に夾雑物が出現しない。 In this way, the lateral seal portion 60 forms the side seal 104 in which the three preheat seals 105 and the two ultrasonic seals 106 are alternately arranged.
Even if impurities remain in the preheat seal 105 formed by the preheat seal portion 61, when the anvil bar 67 grips (presses) the preheat seal 105, the impurities move so as to avoid the anvil bar 67. Therefore, no contaminants remain on the ultrasonic seal 106.
Therefore, when the side seal 104 (ultrasonic seal 106) is cut by the cutter portion 70 in the subsequent process, no impurities appear on the cut surface.
　なお、サイドシール１０４は、トップシール１０３等のように冷却部によって冷却固化されない。超音波シール部６５がプレヒートシール１０５を冷却する冷却部として機能するからである。
　ホーンバー６６とアンビルバー６７は、金属製であるため、フィルムＦｃよりも低温になる。さらにアンビルバー６７の内部には冷却水が供給されて、冷却されている。このため、ホーンバー６６がフィルムＦｃを挟持すると、フィルムＦｃ（プレヒートシール１０５）の熱を奪って冷却させる。しかも、プレヒートシール部６１の加熱時間が短いので、ホーンバー６６は、プレヒートシール１０５を急速に冷却させることができる。
　このように、プレヒートシール１０５の冷却に時間を要することなく、内容物入りフィルム包装袋１００の製造効率を向上させることができる。 The side seal 104 is not cooled and solidified by the cooling unit like the top seal 103 and the like. This is because the ultrasonic seal unit 65 functions as a cooling unit for cooling the preheat seal 105.
Since the horn bar 66 and the anvil bar 67 are made of metal, the temperature is lower than that of the film Fc. Further, cooling water is supplied to the inside of the anvil bar 67 to cool it. Therefore, when the horn bar 66 sandwiches the film Fc, it takes heat from the film Fc (preheat seal 105) and cools the film Fc. Moreover, since the heating time of the preheat seal portion 61 is short, the horn bar 66 can rapidly cool the preheat seal 105.
As described above, the manufacturing efficiency of the film packaging bag 100 containing the contents can be improved without requiring time for cooling the preheat seal 105.
〈切離工程Ｓ７〉
　次に、フィルムＦｃは、さらに下方向に送られて、カッター部７０によってサイドシール１０４が切断される。
　カッター部７０は、カッターバーによりサイドシール１０４を左右方向に亘って切断する。これにより、フィルムＦｃの下端に形成された袋体ＦａがフィルムＦｃから切り落とされる。つまり、内容物入りフィルム包装袋１００が個別に切り落とされる。 <Detachment step S7>
Next, the film Fc is further sent downward, and the side seal 104 is cut by the cutter portion 70.
The cutter portion 70 cuts the side seal 104 in the left-right direction by the cutter bar. As a result, the bag body Fa formed at the lower end of the film Fc is cut off from the film Fc. That is, the film packaging bag 100 containing the contents is individually cut off.
　カッター部７０は、サイドシール１０４の上下方向の中央を帯状に切断する。カッター部７０は、２つの超音波シール１０６の間に配置されたプレヒートシール１０５を完全に切除する。また、カッター部７０は、２つの超音波シール１０６の一部をそれぞれ切除する。
　２つの超音波シール１０６の間のプレヒートシール１０５に夾雑物が残留していたとしても、カッター部７０のカッターバーは、夾雑物に汚染されない。
　したがって、内容物入りフィルム包装袋１００のサイドシール１０４は、測端（切断面）が超音波シール１０６のみになる。 The cutter portion 70 cuts the center of the side seal 104 in the vertical direction in a strip shape. The cutter portion 70 completely cuts off the preheat seal 105 arranged between the two ultrasonic seals 106. Further, the cutter portion 70 cuts a part of each of the two ultrasonic seals 106.
Even if impurities remain in the preheat seal 105 between the two ultrasonic seals 106, the cutter bar of the cutter portion 70 is not contaminated with the impurities.
Therefore, the side seal 104 of the film packaging bag 100 containing the contents has only the ultrasonic seal 106 as the measuring end (cut surface).
　内容物入りフィルム包装袋１００の製造方法では、横シール工程Ｓ６がプレヒートシール工程Ｓ６１と超音波シール工程Ｓ６２を含む。このため、超音波溶着の利点を生かしつつ、超音波溶着の欠点を仮止めの熱溶着で補うことができる。
　プレヒートシール工程Ｓ６１を経ることによりフィルムＦ（プレヒートシール１０５）が軟化するので、超音波シール工程Ｓ６２において超音波シール１０６を短時間で形成することができる。
　超音波シール１０６を形成する部位に厚み方向の段差がある場合でも、プレヒートシール工程Ｓ６１でプレヒートシール１０５を形成するによりフィルムＦが軟化して段差が解消する。このため、超音波シール工程Ｓ６２において超音波シール１０６を良好に形成することができる。
　横シール工程Ｓ６では、フィルムＦｃに流動体（内容物Ｘ）を充填した状態でサイドシール１０４を形成する（液中シール）。このような場合には、超音波シール１０６にシール不良やエッジ切れが発生しやすい。しかし、超音波シール工程Ｓ６２で超音波シール１０６を形成するに先立って、プレヒートシール工程Ｓ６１でプレヒートシール１０５を形成するので、シール不良やエッジ切れが発生しづらい。
　プレヒートシール１０５を形成することにより、超音波シール１０６を形成する部位（プレヒートシール１０５）に夾雑物が残留しづらい。このため、超音波シール１０６を形成する時に夾雑物の発泡（水蒸気爆発）が起きず、ピンホールやクラック等のシール不良のおそれが少ない。
　したがって、上述した製造方法では、フィルム包装袋１００（サイドシール１０４）の形成効率化や品質安定性を図ることができる。 In the method for manufacturing the film packaging bag 100 containing contents, the horizontal sealing step S6 includes a preheat sealing step S61 and an ultrasonic sealing step S62. Therefore, while taking advantage of ultrasonic welding, the shortcomings of ultrasonic welding can be compensated for by heat welding of temporary fixing.
Since the film F (preheat seal 105) is softened by passing through the preheat seal step S61, the ultrasonic seal 106 can be formed in a short time in the ultrasonic seal step S62.
Even if there is a step in the thickness direction at the portion where the ultrasonic seal 106 is formed, the film F is softened by forming the preheat seal 105 in the preheat seal step S61, and the step is eliminated. Therefore, the ultrasonic seal 106 can be satisfactorily formed in the ultrasonic seal step S62.
In the lateral sealing step S6, the side seal 104 is formed in a state where the film Fc is filled with the fluid (content X) (seal in liquid). In such a case, the ultrasonic seal 106 is likely to have a defective seal or a broken edge. However, since the preheat seal 105 is formed in the preheat seal step S61 prior to forming the ultrasonic seal 106 in the ultrasonic seal step S62, sealing defects and edge breakage are less likely to occur.
By forming the preheat seal 105, impurities are less likely to remain on the portion (preheat seal 105) where the ultrasonic seal 106 is formed. Therefore, foaming of impurities (steam explosion) does not occur when the ultrasonic seal 106 is formed, and there is little possibility of sealing failure such as pinholes and cracks.
Therefore, in the above-mentioned manufacturing method, the formation efficiency and quality stability of the film packaging bag 100 (side seal 104) can be improved.
　以上、本発明について実施形態により説明したが、本発明は上述した実施形態に限定されるものではなく、本発明の技術的思想の範囲内で任意の変更が可能である。 Although the present invention has been described above by the embodiment, the present invention is not limited to the above-described embodiment, and any modification is possible within the scope of the technical idea of the present invention.
　例えば、製袋ガイド部１０がフィルムＦを二分割する場合について説明したが、これに限らない。
　製袋ガイド部１０がフィルムＦを三分割以上に分割し、それぞれから包装体を製造する場合であってもよい。また、フィルムＦを分割しないで、包装体を製造する場合であってもよい。 For example, the case where the bag making guide portion 10 divides the film F into two has been described, but the present invention is not limited to this.
The bag making guide portion 10 may divide the film F into three or more parts, and manufacture the package from each of the three parts or more. Further, the case may be used in which the package is manufactured without dividing the film F.
　また、スタンディングパウチタイプの包装体を製造する場合について説明したが、これに限らない。ガセット部１００ａを有していない四方シールタイプの包装体を製造する場合であってもよい。
　四方シールタイプに限らず、三方シールタイプや二方シールタイプ、あるいは背中シールを有するピロー袋であってもよい。 Further, the case of manufacturing a standing pouch type package has been described, but the present invention is not limited to this. It may be a case of manufacturing a four-sided seal type package having no gusset portion 100a.
Not limited to the four-way seal type, a three-way seal type, a two-way seal type, or a pillow bag having a back seal may be used.
　１　縦型製袋充填包装機　　２０　縦シール部　　３０　充填部　　５０　フィルム搬送部　　６０　横シール部　　６１　プレヒートシール部　　６２　ヒーターバー　　６５　超音波シール部　　６６　ホーンバー　　６７　アンビルバー　　６８　非シール形成領域　　７０　カッター部　　１００　内容物入りフィルム包装袋　　１０１　ボトムシール（シール部、第二シール、縦シール）　１０２　ボトム補強シール（シール部、第二シール、縦シール）　　１０３　トップシール（シール部、第二シール、縦シール）　　１０４　サイドシール（シール部、第一シール、横シール）　　１０５　プレヒートシール　　１０６　超音波シール　　Ｆ　フィルム　　Ｆｃ　フィルム（チューブフィルム）　　Ｆａ　袋体　　Ｘ　内容物（流動体）　　 1 Vertical bag making filling and packaging machine 20 Vertical seal part 30 Filling part 50 Film transport part 60 Horizontal seal part 61 Preheat seal part 62 Heater bar 65 Ultrasonic seal part 66 Horn bar 67 Anvil bar 68 Non-seal forming area 70 Cutter part 100 Contents Film packaging bag with goods 101 Bottom seal (seal part, second seal, vertical seal) 102 Bottom reinforcement seal (seal part, second seal, vertical seal) 103 Top seal (seal part, second seal, vertical seal) 104 Side seal (Seal part, first seal, horizontal seal) 105 preheat seal 106 ultrasonic seal F film Fc film (tube film) Fa bag body X contents (fluid)

Claims (15)

  1. 　フィルム同士を溶着させたシール部を有するフィルム包装袋に流動体を封入した内容物入りフィルム包装袋であって、
    　前記シール部は、
    　前記フィルム同士が熱溶着されたプレヒートシールと、
    　前記プレヒートシールがさらに超音波溶着された超音波シールと、
    からなる第一シールを有する、内容物入りフィルム包装袋。     A film packaging bag containing contents in which a fluid is enclosed in a film packaging bag having a sealing portion in which films are welded together.
    The seal portion is
    A preheat seal in which the films are heat welded together,
    An ultrasonic seal in which the preheat seal is further ultrasonically welded,
    A film packaging bag with contents, with a first seal consisting of.
  2. 　前記シール部は、
    　前記フィルム同士が熱溶着されたヒートシールのみからなる第二シールを有し、
    　前記プレヒートシールは、前記第二シールよりも溶着強度が低い、請求項１に記載の内容物入りフィルム包装袋。     The seal portion is
    It has a second seal consisting only of a heat seal in which the films are heat-welded to each other.
    The film packaging bag containing the contents according to claim 1, wherein the preheat seal has a welding strength lower than that of the second seal.
  3. 　前記超音波シールは、前記プレヒートシールよりも幅が狭い、請求項１または２に記載の内容物入りフィルム包装袋。 The film packaging bag containing the contents according to claim 1 or 2, wherein the ultrasonic seal has a narrower width than the preheat seal.
  4. 　前記超音波シールの幅は、前記プレヒートシールの幅の５０～９０％である、請求項１から３のうちいずれか一項に記載の内容物入りフィルム包装袋。 The film packaging bag containing the contents according to any one of claims 1 to 3, wherein the width of the ultrasonic seal is 50 to 90% of the width of the preheat seal.
  5. 　前記フィルム包装袋の外側において前記超音波シールと前記プレヒートシールが重畳配置され、
    　前記フィルム包装袋の内側において前記プレヒートシールのみが配置される、請求項１から４のうちいずれか一項に記載の内容物入りフィルム包装袋。     The ultrasonic seal and the preheat seal are superposed on the outside of the film packaging bag.
    The film packaging bag containing the contents according to any one of claims 1 to 4, wherein only the preheat seal is arranged inside the film packaging bag.
  6. 　前記第一シールは、前記フィルム包装袋の外周のうちの対向する側辺にそれぞれ配置される、請求項１から５のうちいずれか一項に記載の内容物入りフィルム包装袋。 The content-containing film packaging bag according to any one of claims 1 to 5, wherein the first seal is arranged on opposite side surfaces of the outer circumference of the film packaging bag.
  7. 　フィルム包装袋を製袋して流動体を封入する縦型製袋充填包装機であって、
    　チューブフィルムを下方向に搬送するフィルム搬送部と、
    　前記チューブフィルムの内側に流動体を投入する充填部と、
    　前記チューブフィルムを幅方向に亘って溶着して袋体にする横シール部と、
    　前記袋体を前記チューブフィルムから切り離すカッター部と、
    を備え、
    　前記横シール部は、
    　前記チューブフィルムを加熱して溶着するプレヒートシール部と、
    　前記プレヒートシール部が形成したプレヒートシールにさらに超音波を与えて溶着する超音波シール部と、
    を備える、縦型製袋充填包装機。     It is a vertical bag-making filling and packaging machine that creates a film packaging bag and encloses a fluid.
    A film transport section that transports the tube film downward,
    A filling part for charging the fluid inside the tube film,
    A horizontal seal portion that welds the tube film over the width direction to form a bag body,
    A cutter portion that separates the bag from the tube film,
    Equipped with
    The horizontal seal portion is
    A preheat seal portion that heats and welds the tube film, and
    An ultrasonic seal portion that further applies ultrasonic waves to the preheat seal formed by the preheat seal portion to weld it, and an ultrasonic seal portion.
    Equipped with a vertical bag filling and packaging machine.
  8. 　帯状のフィルム同士を熱溶着して前記チューブフィルムを形成する縦シール部を備え、
    　前記プレヒートシール部の加熱時間は、前記縦シール部の加熱時間よりも短い、請求項７に記載の縦型製袋充填包装機。     It is provided with a vertical sealing portion that heat-welds strip-shaped films to each other to form the tube film.
    The vertical bag-making filling and packaging machine according to claim 7, wherein the heating time of the preheat seal portion is shorter than the heating time of the vertical seal portion.
  9. 　前記超音波シール部は、さらに前記プレヒートシールを冷却固化する、請求項７または８に記載の縦型製袋充填包装機。 The vertical bag-making filling and packaging machine according to claim 7 or 8, wherein the ultrasonic seal portion further cools and solidifies the preheat seal.
  10. 　前記超音波シール部は、前記プレヒートシール部よりもシール幅が狭い、請求項７から９のうちいずれか一項に記載の縦型製袋充填包装機。 The vertical bag-making filling and packaging machine according to any one of claims 7 to 9, wherein the ultrasonic sealing portion has a narrower sealing width than the preheat sealing portion.
  11. 　前記超音波シール部は、前記プレヒートシール部が形成したプレヒートシールに対して、超音波シールを上下方向において対称に重畳させるように形成する、請求項７から１０のうちいずれか一項に記載の縦型製袋充填包装機。 The invention according to any one of claims 7 to 10, wherein the ultrasonic seal portion is formed so that the ultrasonic seal is symmetrically superimposed on the preheat seal formed by the preheat seal portion in the vertical direction. Vertical bag filling and packaging machine.
  12. 　前記超音波シール部は、シール幅方向の中央にシール長さ方向に延びる非シール形成領域を有する、請求項７から１１のうちいずれか一項に記載の縦型製袋充填包装機。 The vertical bag-making filling and packaging machine according to any one of claims 7 to 11, wherein the ultrasonic seal portion has a non-seal forming region extending in the seal length direction at the center in the seal width direction.
  13. 　前記カッター部は、前記横シール部が形成した横シールのうち、前記非シール形成領域に対応する部位を切除する、請求項１２に記載の縦型製袋充填包装機。 The vertical bag-making filling and packaging machine according to claim 12, wherein the cutter portion cuts a portion of the horizontal seal formed by the horizontal seal portion corresponding to the non-seal forming region.
  14. 　フィルム包装袋を製袋して流動体を封入する内容物入りフィルム包装袋の製造方法であって、
    　チューブフィルムを下方向に搬送するフィルム搬送工程と、
    　前記チューブフィルムの内部に流動体を充填する充填工程と、
    　前記チューブフィルムを幅方向に亘って溶着して袋体にする横シール工程と、
    　前記袋体を前記チューブフィルムから切り離す切離工程と、
    を有し、
    　前記横シール工程は、
    　前記チューブフィルムを加熱して溶着するプレヒートシール工程と、
    　前記プレヒートシール工程で形成したプレヒートシールにさらに超音波を与えて溶着する超音波シール工程と、
    を含む、内容物入りフィルム包装袋の製造方法。     It is a method of manufacturing a film wrapping bag containing contents by making a film wrapping bag and enclosing a fluid.
    The film transport process that transports the tube film downward, and
    A filling step of filling the inside of the tube film with a fluid, and
    A horizontal sealing process in which the tube film is welded over the width direction to form a bag body,
    A cutting step of separating the bag body from the tube film, and
    Have,
    The horizontal sealing step is
    A preheat sealing process in which the tube film is heated and welded, and
    An ultrasonic sealing process in which ultrasonic waves are further applied to the preheat seal formed in the preheat sealing step to weld it, and
    How to make a film packaging bag with contents, including.
  15. 　帯状のフィルム同士を熱溶着して前記チューブフィルムを形成する縦シール工程を有し、
    　前記プレヒートシール工程で形成するプレヒートシールは、前記縦シール工程で形成する縦シールよりも溶着強度が低い、請求項１４に記載の内容物入りフィルム包装袋の製造方法。     It has a vertical sealing process in which strip-shaped films are heat-welded to each other to form the tube film.
    The method for manufacturing a film packaging bag containing contents according to claim 14, wherein the preheat seal formed in the preheat seal step has a welding strength lower than that of the vertical seal formed in the vertical seal step.
PCT/JP2021/015127 2020-05-23 2021-04-12 Content-filled film packing bag, vertical-type bag filling and packing device, method for manufacturing content-filled film packing bag WO2021241035A1 (en)

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