JP3624369B2 - Package manufacturing method and package manufacturing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a package manufacturing method and a package manufacturing apparatus for manufacturing a package such as a tea bag.
[0002]
[Prior art]
A packaging body such as a tea bag is manufactured by forming a bag body while supplying a packaging material, and filling the bag body with contents such as tea leaves. In this production, it is preferable to form a plurality of packages simultaneously because mass production is possible. As an apparatus for mass production, a wide packaging material is used, and a plurality of vertical sealing machines for forming a vertical seal line on the packaging material are arranged in the width direction, and a plurality of packaging materials are arranged via the vertical seal line. After that, a structure in which a transverse sealing machine is run and sealed to form a plurality of packaging bodies is used.
[0003]
[Problems to be solved by the invention]
However, in the above-described structure, since the packaging material is wide, the packaging material is likely to meander or wrinkle during supply of the packaging material, and thus the packaging material cannot be smoothly supplied. ing.
[0004]
The present invention has been made in consideration of the above-described conventional problems, and is a packaging material that does not cause meandering or wrinkles, whether it is a wide packaging material or a narrow packaging material. An object of the present invention is to provide a packaging body manufacturing method and a packaging body manufacturing apparatus that can be supplied and can manufacture a good packaging body.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the packaging body manufacturing method of the invention of claim 1 supplies a feeding force to the packaging material by moving the clamp plate sandwiching the overlapped sheet-shaped packaging material up and down by an air cylinder. The vertical seal line is formed while supplying the packaging material, and intersects with the vertical seal line while leaving at least both end portions in the width direction of the packaging material with non-sealing portions continuous in the packaging material supply direction. And a non-sealed portion of the packaging material is pulled in the packaging material supply direction by the exhaust air of the air cylinder to bring the packaging material into a tensile state.
[0006]
In this method, the non-sealed portion is pulled in the packaging material supply direction, whereby the entire packaging material is in a tensile state. For this reason, even if it is a wide packaging material, it can supply smoothly, without generating meandering and a wrinkle, and a favorable packaging body can be manufactured.
[0007]
Package production apparatus of a second invention, a vertical sealing machine for forming a longitudinal sealing lines on a sheet-like packaging material supplied superimposed, the non-sealing portion which is continuous to the supply direction of the packaging material capsule By moving the clamp plate up and down, the horizontal sealing machine that forms the seal line in the direction that intersects the vertical seal line while leaving it at both ends in the width direction of the material, the clamp plate that can move up and down across the packaging material, and the clamp plate An air cylinder that applies a feeding force in the supply direction to the packaging material via the clamp plate, and exhaust air from the air cylinder is introduced, and the non-seal portion is drawn in the packaging material feeding direction by the introduced exhaust air. It is provided with the drawing-in means which makes a material a tension state.
[0008]
The vertical sealing machine in this apparatus forms a vertical sealing line on the packaging material, and the horizontal sealing machine forms a sealing line in a direction intersecting the vertical sealing line, so that the sheet-like packaging material becomes a bag. . The horizontal sealing machine leaves a non-sealed portion that is not sealed in the packaging material when forming a sealing line. Since this non-sealing portion is not cut by a horizontal sealing machine, it has a long shape continuous with the packaging material supply method. The retracting means retracts the continuous non-seal portion in the packaging material supply direction, so that the packaging material is sent in a tension state. Thereby, even if it is wide, a packaging material does not meander or wrinkles generate | occur | produces, the smooth feed becomes possible, and a package can be shape | molded favorably. Note that the non-sealed portion does not become a part of the package and can be disposed of.
[0009]
According to a third aspect of the present invention, there is provided a packaging body manufacturing apparatus including a vertical sealing machine that forms a vertical seal line on a sheet-like packaging material that is supplied in a superimposed manner, and a non-sealing portion that is continuous in the packaging material supply direction. A horizontal sealing machine that forms a seal line in a direction intersecting the vertical seal line while remaining at both ends and an intermediate part in the width direction of the material, a clamp plate that can move up and down across the packaging material, and a vertical movement of the clamp plate Air cylinder that applies a feeding force in the supply direction to the packaging material via the clamp plate, and exhaust air of the air cylinder is introduced, and the introduced exhaust air causes the non-seal portion to move in the packaging material feeding direction. And a pulling means for pulling the packaging material into a tensile state.
[0010]
Also in this invention, since it can send in the state which made the packaging material the tension | pulling state, a packaging material can be sent smoothly and a package can be shape | molded favorably.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show an embodiment of the present invention. As shown in FIG. 1, a frame 2 is erected on a base 1, and a plurality of vertical sealing machines 3, clamp members 4 and horizontal sealing machines 5 are arranged on the frame 2.
[0014]
A plurality of vertical sealers 8 (five in the illustrated embodiment) are attached in a row in the horizontal direction at a predetermined interval to an attachment rod 6 spanning the upper part of the frame 2. Each vertical sealing machine 3 forms a vertical seal line 31 for the supplied packaging material 30 and cuts the packaging material 30 in the vertical direction perpendicular to the width direction via the vertical seal line 31. Thus, the packaging material 30 is divided into a plurality of parts (in the form shown, four parts are divided).
[0015]
As the vertical seal line 3, as shown in FIG. 2, an ultrasonic bonding apparatus including an ultrasonic horn 7 and a rotatable disk-shaped cradle 8 facing the ultrasonic horn 7 is used. The packaging material 30 is supplied between the ultrasonic horn 7 and the cradle 8 in a superposed state, thereby forming a vertical seal line 31 for welding the packaging material 3 to each other. Is cut through.
[0016]
The clamp member 4 includes a pair of opposing clamp plates 9 and 10 and a pair of left and right moving air cylinders 11 for moving the clamp plates 9 and 10 up and down. The clamp plates 9 and 10 extend in the width direction of the packaging material 30, and either one or both of them move in the contact / separation direction. Then, the clamp plates 9 and 10 are clamped by sandwiching the packaging material 30 from both sides by the movement in the approaching direction, and the packaging material 30 is released from the clamp by the movement in the separation direction.
[0017]
In FIG. 1, reference numeral 12 denotes a horizontally long sliding slit formed in the clamp plates 9 and 10, and a horizontal sealing machine 5 described later travels along the sliding slit 12. The vertically moving air cylinders 11 are disposed at both end portions of the clamp plates 9 and 10. The vertically moving air cylinder 11 supports the clamp plates 9 and 10 via a bracket 13 and moves the clamp plates 9 and 10 up and down by shortening and extending the same. During the downward movement of the clamp plates 9 and 10, the packaging material 30 is sandwiched, whereby a downward feed force acts on the packaging material 30.
[0018]
As shown in FIG. 2, the horizontal sealing machine 5 is attached to a bifurcated traveling platform 14. Similar to the vertical sealing machine 3, the horizontal sealing machine 5 includes an ultrasonic horn 15 and a rotatable disc-shaped receiving base 16, which are opposed to each other in the slide slit 12. In this horizontal sealing machine 5, the ultrasonic horn 15 and the cradle 16 are opposed to each other with the packaging material 30 interposed therebetween, and in this state, it travels in the width direction of the packaging material 30 together with the traveling of the traveling table 14. By this running, a seal line 32 in a direction intersecting with the vertical seal line 31 is formed on the packaging material 30. In this case, as shown in FIG. 2, the traveling table 14 travels by the operation of the traversing cylinder 26, and the operation of the traversing cylinder 16 causes the traveling table 14 to move to the guide rod 17 (see FIG. 1). Guided and reciprocates left and right.
[0019]
The horizontal sealing machine 5 reciprocates in the area where the vertical sealing machine 3 is disposed. That is, the horizontal sealing machine 5 sets the limit of traveling between the vertical sealing machines 3 at both ends arranged in a row, and by this traveling, the sealing wire 32 is formed on the packaging material 30 and the molded packaging 33 is Separate from packaging material 30.
[0020]
On the other hand, as the packaging material 30, a wide material having both end portions longer than the arrangement region of the vertical sealing machine 3 is used. Since the horizontal sealing machine 5 travels in the region where the vertical sealing machine 3 is disposed, the horizontal sealing machine 5 does not reach both ends of the packaging material 30 wider than the horizontal sealing machine 3. The non-seal portion 34 to which no ultrasonic waves act is left. The non-seal portion 34 is separated from the packaging material 30 in the longitudinal direction by the ultrasonic waves of the longitudinal sealing machines 3 at both ends, but the upper end portion is not separated from the packaging material 30 and remains in a continuous state.
[0021]
Reference numeral 18 denotes a drawing pipe as a drawing means, into which the above-described non-seal portion 34 is inserted. As shown in FIG. 2, two drawing pipes 18 are fixed to the upper surface of the base 1, and each drawing pipe 18 extends in the front-rear direction of the base 1.
[0022]
Each drawing pipe 18 has a tip portion that is curved and rises upward from the base 1, and an intermediate portion and a rear end portion extend so as to be parallel to the upper surface of the base 1. Each drawing pipe 18 is fixed on the base 1 so that the tip portion thereof coincides with the downstream side in the supply direction of the packaging material 30. As described above, since the distal end portion is curved, the drawing pipe 18 can smoothly draw the non-seal portion 34 of the packaging material 30 into the inside.
[0023]
Exhaust air from the vertically moving air cylinder 11 is blown into each drawing pipe 18. In FIG. 1, reference numeral 19 denotes an air introduction port that is connected to a vertically moving air cylinder 11 via a hose (not shown) and guides exhaust air from the cylinder 11 into a drawing pipe 18.
[0024]
Exhaust air from the vertically moving air cylinder 11 is introduced from the air introduction □ 19 into the drawing pipe 18, flows backward in the pipe 18 and is discharged from the rear end. Along with the flow of the exhaust air, the non-seal portion 34 is pulled in along the supply direction of the packaging material 30.
[0025]
Reference numeral 20 denotes a filling nozzle as a filling member disposed above the vertical sealing machine 3. The filling nozzle 20 descends between the overlapping packaging materials 30 and fills the packaging material 30 with a predetermined amount of contents (not shown). As the contents, appropriate tea confectionery such as green tea, black tea, and dragon tea, powdery seasoning, decoction and the like are selected.
[0026]
In FIG. 2, reference numeral 21 denotes a balance weight that adjusts the weight balance of the entire apparatus, and is connected to the various operation members described above via a chain 22. Reference numeral 23 denotes a shooter provided in an inclined shape on the front side of the base 1, and the package 33 formed and separated from the packaging material 30 slides down. Reference numeral 24 denotes a guide roller disposed on the supply path of the packaging material 30.
[0027]
Next, the manufacture of the package according to this embodiment will be described. As the packaging material 30, a wide material that forms a plurality of packaging bodies 33 at the same time is used. Although not shown, the packaging material 30 is wound into a roll and is sequentially supplied. The packaging material 30 is guided downward by the guide roller 24 and overlapped with each other. In this state, the packaging material 30 is supplied to the vertical sealing machine 3 to operate the apparatus.
[0028]
FIG. 1 shows a state in which this operation has been performed for a predetermined time, and the non-seal portion 34 of the packaging material 30 is inserted into the drawing pipe 18. Further, as the horizontal sealing machine 5 travels, the packaging body 38 formed in the previous stage is separated from the packaging material 30, and a horizontal sealing line 32 is formed at the lower end portion of the packaging material 30. During these operations, the vertical sealing machine 3 continuously forms the vertical seal line 31 on the packaging material 30 and divides the packaging material 30 in the vertical direction.
[0029]
In this state, a predetermined amount of content is filled into the packaging material 30 from each filling nozzle 20. On the other hand, by the operation of the vertically moving air cylinder 11, the clamp plates 9 and 10 move upward to reach the top dead center and sandwich the packaging material 30. When the clamp plates 9 and 10 reach the top dead center, the exhaust air of the vertically moving air cylinder 11 is introduced into the drawing pipe 18 and blown into the pipe 18. Thereby, since the non-seal part 34 is drawn into the drawing pipe 18, the non-seal part 34 becomes a tension state and the slack is removed. Further, since the pulling force of the non-seal part 34 also exerts a tensile force on the packaging material 30 in which the non-seal part 34 is continuous, the entire packaging material 30 is in a tensile state.
[0030]
Next, the vertically moving air cylinder 11 is actuated to lower the clamp plates 9 and 10 to reach the bottom dead center, thereby lowering the packaging material 30 by a predetermined length. When the clamp plates 9 and 10 reach the bottom dead center, the exhaust air of the vertically moving air cylinder 11 is introduced into the drawing pipe 18 and blown. Thereby, the non-seal part 34 is drawn in the drawing pipe 18, and the whole packaging material 30 will be in a tension | pulling state similarly to the above-mentioned.
[0031]
Then, when the clamp plates 9 and 10 are at the top dead center and the bottom dead center, the horizontal sealing machine 5 travels to form the horizontal sealing line 32 on the packaging material 30, and the molded packaging body 33 is separated. However, since the non-seal portion 34 is drawn into the drawing pipe 18 and the packaging material 30 is in a tensile state, a straight lateral seal can be performed. Moreover, since the packaging material 30 is sent downward in a tensile state, it does not meander and does not cause wrinkles. For this reason, smooth supply of the wide packaging material 30 can be reliably performed, and simultaneous molding of the plurality of packaging bodies 33 can be performed using the wide packaging material 30. Therefore, the plurality of packaging bodies 33 can be manufactured at high speed, and mass production can be performed.
[0032]
FIG. 3 shows another embodiment of the present invention, in which three drawing pipes 18 are arranged. The pull-in pipes 18 on both sides pull in the non-seal portions 34 formed from both ends of the packaging material 30 as in the above-described embodiment, but the intermediate pull-in pipes 18 are formed in the middle portion of the packaging material 30. The seal portion 34 is retracted.
[0033]
In this embodiment, in order to form the intermediate non-seal part 34, the vertical sealing machine 3 is arranged adjacent to the part facing the intermediate non-seal part 34. Further, two horizontal sealing machines 5 are arranged on the left and right with the non-sealing part 34 at the middle as a boundary. Each horizontal sealing machine 5 travels within the region where the corresponding vertical sealing machine 3 is disposed, thereby forming the horizontal sealing line 32 while leaving the non-sealing portion 34. Each non-seal portion 34 is drawn into the three drawing pipes 18 and drawn in the supply direction of the packaging material 30. Thereby, the whole packaging material 30 can be made into a tension state.
[0034]
In such an embodiment, even a wider packaging material 30 can be smoothly fed without meandering or wrinkling. For this reason, it becomes possible to simultaneously mold more packages.
[0035]
The present invention can be variously modified without being limited to the above embodiments. For example, four or more retracting means may be arranged to perform feeding according to the width of the packaging material. Furthermore, as the filling member, a shooter that evenly distributes the contents in the hopper and drops the contents on the divided packaging material can be used.
[0036]
【The invention's effect】
As described above, the present invention leaves a non-sealed portion in the packaging material, and draws the non-sealed portion in the packaging material supply direction to remove slack, so that even a wide packaging material can meander or wrinkle. Can be supplied without occurring. For this reason, it becomes possible to simultaneously mold a plurality of packages using wide packaging materials, and mass production of packages can be performed efficiently.
[Brief description of the drawings]
FIG. 1 is a front view of an embodiment of the present invention.
FIG. 2 is a side view of an embodiment.
FIG. 3 is a front view showing another embodiment of the present invention.
[Explanation of symbols]
3 Vertical sealing machine 4 Clamp member 5 Horizontal sealing machine 18 Pull-in pipe 30 Packaging material 31 32 Seal wire 33 Package 34 Non-sealing part

Claims (3)

A clamp plate that sandwiches the overlapped sheet-like packaging material is moved up and down by an air cylinder to provide a feeding force to the packaging material and form a vertical seal line while supplying the packaging material, A transverse seal line is formed in a direction intersecting with the longitudinal seal line while leaving at least both end portions in the width direction of the packaging material with non-seal portions continuous in the packaging material supply direction, and the packaging material is formed by exhaust air from the air cylinder. The packaging body manufacturing method characterized by pulling the non-seal portion of the packaging material in the packaging material supply direction to bring the packaging material into a tensile state. A vertical sealing machine that forms a vertical seal line on a sheet-like packaging material that is supplied in a superimposed manner, and a vertical direction while leaving non-seal parts continuous in the packaging material supply direction at both ends in the width direction of the packaging material A horizontal sealing machine that forms a sealing line in a direction intersecting with the sealing line, a clamp plate that can be moved up and down across the packaging material, and moving the clamp plate up and down to the packaging material in the supply direction via the clamping plate An air cylinder for applying a feeding force; and an air cylinder exhaust air is introduced, and the introduced exhaust air draws the non-seal portion in the packaging material feeding direction to bring the packaging material into a tensile state. A packaging body manufacturing apparatus characterized by comprising: A vertical sealing machine that forms a vertical seal line on a sheet-like packaging material supplied in a superposed manner, and a non-seal portion continuous in the packaging material supply direction is left at both ends and an intermediate portion of the packaging material in the width direction. However, a horizontal sealing machine that forms a sealing line in a direction that intersects the vertical sealing line, a clamp plate that can move up and down across the packaging material, and a clamp plate that moves up and down to supply the packaging material via the clamp plate An air cylinder that applies a feeding force in the direction, and a drawing means that introduces exhaust air of the air cylinder and draws the non-seal portion in the feeding direction of the packaging material by the introduced exhaust air to bring the packaging material into a tensile state. It is equipped with the package manufacturing apparatus characterized by the above-mentioned.

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