JP4159053B2 - Winding roll for pillow packaging machine - Google Patents

Description

The present invention relates to a winding material applied to a pillow packaging machine for packaging various articles.

  Various packaging bags have been proposed for packaging various foods and various articles such as granules, plates, and boxes. For example, a packaging bag for packaging rice balls or the like has been proposed in which design properties are taken into consideration, and side surfaces are provided on both sides to improve the texture (see, for example, Patent Document 1). Such a packaging bag is formed in a folded state in which a sheet fed out from a winding web is subjected to a folding process, a welding process, a cutting process, a cutting process, and the like.

  On the other hand, in pillow packaging, a sheet fed out of a take-up roll is formed into a cylindrical shape by a former (former), and articles on the conveyor are fed into the cylindrical sheet and then back-attached by a vertical sealer. Then, the front and rear ends are cut after the welding seal or cut by the horizontal sealer, so that a sealed packaging bag containing articles can be obtained continuously. Therefore, pillow packaging has the advantage of saving the trouble of storing articles in a packaging bag.

JP 2003-291986 A

  By the way, if the mountain fold line part (folding part) between the front part and both sides of the rear part and the side part is heat-welded with a slight width (about 5 mm), a sharp appearance with a clean edge can be obtained, and Further, the rigidity of the bag body can be improved. However, in the case of pillow wrapping, in order to form the side surface portion, a folding machine for forming a fold in the sheet has to be disposed on the upstream side of the former, and the entire apparatus becomes large. In addition, when the folded portion is thermally welded, a welding machine is required, and the entire apparatus is further increased in size.

  The present invention has been made in view of such circumstances, and does not require a folding machine or a welding machine, and a packaging bag in which articles are housed inside and a joining columnar portion is formed on a side portion by a normal pillow packaging machine. An object of the present invention is to provide a take-up roll for a pillow packaging machine that can make a bag.

(1) A winding material for a pillow packaging machine of the present invention is a winding material 1 applied to a pillow packaging machine in order to make a packaging bag 24 containing an article R,
Joining columnar portions 3a and 3a formed by joining the inwardly folded portion inner surface u of the folded portion 3 having a Z-shaped cross section to the flat portion inner surface w and formed in a strip shape in the longitudinal direction constitute the winding raw fabric 1 It is characterized in that at least one pair or more is provided continuously on the sheet 2 to be performed.

  In the sheet 2 fed out from the roll raw material for the pillow packaging machine, since the rigid joining columnar portions 3a and 3a are continuously formed, the article R is placed inside by a normal pillow packaging machine. If the edges of the sheet 2 are joined to each other in the stored state and the front and rear of the part storing the article R are welded, a columnar shape is formed at the two corners on the surface side without using a folding machine or a welding machine. The packaging bag 24 having the parts 3a and 3a and having a sharp appearance with a clean edge and a good feeling of rigidity can be continuously obtained in a state where the article R is stored. In addition, as for the joining columnar part 3a, two raw materials should just be joined by suitable joining means, such as adhesion | attachment with an adhesive agent, heat welding with a welding machine, and welding with an ultrasonic sealer.

(2) In the take-up roll for a pillow packaging machine according to (1), the portion 5 between the joining columnar portions 3a, 3a is applied to the front portion 21 of the packaging bag 24, and the joining columnar portion 3a, The outer portions 6 and 6 of 3a may be applied to the back surface portion 22 including the side surface portions 23 and 23 of the packaging bag 24 and the back pasting portion 22a.

  In this way, since the joining columnar portions 3a and 3a are arranged on both sides of the front portion 21 of the packaging bag 24, the packaging bag 24 having a sharp appearance with a clean edge and a rigid appearance is continuously provided. Can be obtained.

(3) In the raw roll for a pillow packaging machine according to the item (2), the outer portion 6 of the joining columnar portion 3a to be applied to the side surface portion 23 has a width of the planned width of the side surface portion 23. You may make it return in the location equivalent to 1/2.

  In this way, the side portion 23 is folded at the center, so that the appearance of the packaging bag 24 when the bag is made becomes good.

(4) In the take-up roll for a pillow wrapping machine according to (1) , the inwardly folded portion inner surface u of the folding portion 4 having a Z-shaped cross section is flat on the outside of any one of the joining columnar portions 3a. the joint columnar portion 4a which is formed in a band shape on and longitudinally become joined to the portion surface w may be set only.

  Since the sheet 2 fed out from the raw roll for the pillow packaging machine is formed with continuous joining columnar portions 3a, 3a and an outer joining columnar portion 4a in a continuous form, a normal pillow packaging machine is used. Thus, in a state where the article R is housed inside, the edges of the sheet 2 are joined to form the outer joining columnar part 4a and the end pasting part (4A) symmetrically with the joining columnar parts 3a and 3a. If the front and rear of the portion containing the R are welded, there is no need to use a folding machine or a welding machine separately, and the columnar portions 3a, 3a, 4a, (4A) are provided at the four corners and the edges are clean and sharp. A good-looking packaging bag having an appearance and rigidity can be continuously obtained in a state where the article R is stored.

(5) In the winding roll for a pillow packaging machine according to (4), the portion 5 between the joining columnar portions 3a, 3a is applied to the front portion 21 of the packaging bag 24, and the joining columnar portion 3a A portion 6 between the outer joining columnar portions 4a adjacent to each other and an outer portion 61 of one of the joining columnar portions 3a are applied to the side surface portions 23 and 23 of the packaging bag 24, and the outer side of the joining columnar portion 4a. The portion 71 may be applied to the back surface portion 22 of the packaging bag 24.

  In this way, the joining columnar portions 3a and 3a are formed on both sides of the front portion 21, the joining columnar portion 4a and the end pasting portions (4A) are formed on both sides of the back surface portion 22, and the four corners of the article R are rigid. It is possible to continuously obtain a good-looking packaging bag 24 that is surrounded by the columnar portions 3a, 3a, 4a, and (4A) and has a sharp appearance with a clean edge and rigidity.

(6) In the take-up roll for a pillow wrapping machine according to item (1), on the outer side of the joining columnar portions 3a, 3a , the inwardly folded portion inner surfaces u, u of the folding portions 4, 4 having a Z-shaped cross section A pair of joining columnar parts 4a, 4a formed by joining the flat part inner surfaces w, w and formed in a strip shape in the longitudinal direction may be provided.

  In the sheet 2 fed out from such a roll raw material for a pillow wrapping machine, rigid joining columnar portions 3a, 3a, 4a, 4a are continuously formed. If the edges of the sheet 2 are joined to each other in the state in which the article R is stored and bonded to the back, and then the front and rear of the part in which the article R is stored are welded, a folding machine or a welding machine should be used separately. And having the columnar portions 3a, 3a, 4a, 4a at the four corners, and having a sharp appearance with a clean edge and a good-looking appearance with rigidity, in a state in which the articles R are stored continuously. Can do.

(7) In the roll raw material for a pillow packaging machine according to (6), the portion 5 between the joining columnar portions 3a, 3a is applied to the front portion 21 of the packaging bag 24, and the joining columnar portion 3a 6 is applied to the side surface portion 23 of the packaging bag 24, and the outer portion 7 of the bonding columnar portion 4a includes the back pasting portion 22a of the packaging bag 24. The rear part 22 may be used.

  If it does in this way, joining columnar part 3a, 3a, 4a, 4a will be each arrange | positioned at the both sides of the front part 21 and the back surface part 22, and the four corners of the article | item R will be rigid columnar part 3a, 3a, 4a, It is possible to continuously obtain a good-looking packaging bag 24 that is surrounded by 4a and has a sharp appearance with a clean edge and rigidity.

( 8 ) In the take-up roll for a pillow packaging machine according to any one of (1) to ( 7 ), the joining width b of the folding part 3 and the outer folding part 4 is set to 3 to 15 mm, respectively. May be. With this setting, it is possible to form the joining columnar portion 3a and the outer joining columnar portion 4a that are sufficiently rigid.

( 9 ) In the take-up roll for a pillow packaging machine according to any one of (1) to ( 8 ), the sheet 2 may be made of a material having a single-sided heat-sealing property. In this way, the joining columnar part 3a and the outer joining columnar part 4a can be easily formed by thermal welding.

( 10 ) In the raw roll for pillow packaging machine according to any one of (1) to ( 8 ), the sheet 2 is formed by combining a heat-sealable material and a paper material. There may be. If it does in this way, printing etc. can be given to a paper material and design nature and decoration nature can be improved.

  The take-up roll for a pillow packaging machine according to the present invention has a continuous column-shaped portion formed in the longitudinal direction of at least one pair or more on a sheet constituting a take-up roll for making a packaging bag. Therefore, if the edge of the sheet is joined to each other and the front and rear of the part storing the article R are welded in a state where the article is stored inside by a normal pillow packaging machine, a folding machine or a welding machine is separately provided. It is possible to continuously obtain a good-looking packaging bag having a sharp appearance and rigidity with a columnar part at least at the two corners on the surface side, in a state where articles are stored. it can.

Hereinafter, a winding raw material for a pillow packaging machine (hereinafter referred to as a winding raw material) according to the best embodiment of the present invention will be described in detail with reference to the drawings.
[Embodiment 1]
FIG. 1A is a perspective view of a winding material, FIG. 1B is a cross-sectional view, and FIG. 1C is a cross-sectional view of a packaging bag in which an article (rice ball) R is stored. As shown in these figures, the sheet 2 constituting the take-up roll 1 is made of, for example, a single-side heat-sealable material, and is relative to the center line X (the longitudinal reference line of the present invention) X of the sheet 2. A pair of rigid joined columnar portions (folded columnar portions) 3a and 3a each having rigidity is formed in a strip shape in the longitudinal direction at symmetrical positions. The joining columnar portions 3a, 3a are heat-welded (joined) to the flat portion inner surface w of the pair of folded portions 3, 3 having an Z-shaped cross section and the inner folded portions 4, 4 of the outer folded portions 4, 4. The inner surfaces u of the partial inner surfaces u are folded to form the outer portions 6 and 6 of the joining columnar portions 3a and 3a, or the both side edges of the single material 5 are folded outward. The joining columnar portions 3a and 3a may be formed by joining the inner end edges of the materials 6 and 6. The reference line X may be set at a position shifted left and right from the center line of the seat 2. In this case, the position of a back pasting portion 22a described later is also shifted left and right.

  In order to form the folding portions 3 and 3 in the sheet 2, a known folding machine may be used. In the folding machine, for example, a guide plate substrate, a folded guide plate bent inwardly on both sides of the guide plate substrate, and a drive installed in an inserted state with respect to the folded guide plate from the outside. A thing provided with a board etc. can be used. Moreover, what is necessary is just to provide a well-known welding machine in the downstream of a folding machine. The welding machine only needs to be provided with a heating roller and a presser roller, for example, and has high rigidity by passing the folding portions 3 and 3 between the two rollers and performing heat treatment under the action of the pressing force. The joining columnar portions 3a and 3a can be formed continuously.

  Therefore, in this embodiment, for example, after using the folding machine as described above to form the folding parts 3 and 3 having a Z-shaped cross section on the sheet 2 fed out from the winding raw material, The joining columnar portions 3a and 3a may be continuously formed by welding the inner facing folded inner surface u of 3 and 3 and the inner surface w of the flat portion with a predetermined width. In addition, when joining the edges of the other materials 6 and 6 on both sides of a single material 5, for example, the inner edges of the other materials 6 and 6 disposed at a predetermined interval are used. It suffices to fold outwards by a folding machine and weld both side edges of a single material 5 to both end edges by a welding machine.

  In this way, the sheet 2 on which the two joining columnar portions 3a and 3a are formed in the longitudinal direction is wound up to form the winding raw material 1, and this winding raw material 1 is mounted on a pillow packaging machine and is used as a normal pillow. If packaging is performed, for example, the packaging bag 24 in a state in which the article R as shown in the cross-sectional view of FIG. The front portion 21 of the packaging bag 24 is filled with a portion 5 between the pair of joined columnar portions 3a, 3a, and the rear portion 22 including the side portion 23 and the back pasted portion 22a is joined to the joined columnar portion. The part 6 outside 3a is used. Moreover, as shown in the cross-sectional view of FIG. 1D, the portion 6 outside the joining columnar portion 3 a to be applied to the side surface portion 23 of the packaging bag 24 corresponds to ½ of the planned width of the side surface portion 23. Winding may be performed by turning the portion 6b facing inward and folding it outward at the inner end. In this way, the side portion 23 (see FIG. 1C) is folded at the center, so that the appearance of the packaging bag 24 (not shown) is improved when the bag is made.

  As the pillow wrapping machine, a commonly used one can be applied. That is, for example, a holder that can be detachably mounted on the take-up roll 1, a former for forming a sheet fed from the take-up roll 1 into a cylindrical shape, a conveyor for conveying articles, and back-sticking If the pillow packaging machine is equipped with a vertical sealer, a horizontal sealer for fusing and sealing the front and back of the sheet, etc., the above-described packaging bag 24 can be made without adding a folding machine or a welding machine. it can. FIG. 1 (c) shows a case of a normal pillow in which the article R is formed by wrapping the article R from above with a former, but a reverse pillow (not shown) in which the article R is placed on the sheet is also shown. Bag making is possible. Further, the feeding direction of the sheet 2 is not limited to the horizontal pillow system in which the sheet is fed in the horizontal direction, but may be a vertical pillow system in which the sheet 2 is fed in the vertical direction.

  Further, the width A (see FIG. 1B) of the portion 5 between the pair of joining columnar portions 3a, 3a described above is set slightly wider than the width of the article R, for example, and is outside the joining columnar portion 3a. The width A ′ of the portion 6 is preferably set to the thickness of the article R + the back pasting allowance. That is, an appropriate back pasting margin may be set for both side edges 6a and 6a of the portion 6 outside the joining columnar portion 3a of the sheet 2. Moreover, if the width b of the heat welding applied to the folding part 3 is set to 3 to 15 mm, the joining columnar parts 3a and 3a having sufficient rigidity can be formed.

  The packaging bag 24 made as described above has a sharp appearance with a clean edge and a good appearance with rigidity due to the heat-welded joining columnar portions 3a and 3a. The sheet 2 may be made of a material that can be easily torn in the longitudinal direction. When such a material is used, the bag body is easily broken when the article R is taken out from the packaging bag 24. The sheet 2 may be a composite of a heat-sealable material (film, non-woven fabric, etc.) and a paper material. If such a material is used, the paper material is printed and designed. And decoration can be improved. In addition, in order to form the joining columnar parts 3a and 3a, welding with an ultrasonic sealer may be performed instead of the welding machine. In the case of welding with an ultrasonic sealer, wrinkles are unlikely to occur in the sheet 2.

[Embodiment 2]
FIG. 2A is a perspective view of the winding material, and FIG. 2B is a cross-sectional view. FIG. 3A is a cross-sectional view of a packaging bag in which an article (rice ball) is stored, and FIG. 3B is a perspective view. As shown in these figures, the sheet 2 constituting the take-up roll 1 is made of, for example, a single-side heat-sealable material, and is relative to the center line X (the longitudinal reference line of the present invention) X of the sheet 2. A pair of rigid joining columnar portions 3a and 3a and outer joining columnar portions 4a and 4a are formed at symmetrical locations. The joining columnar portions 3a, 3a and the outer joining columnar portions 4a, 4a are each formed such that a pair of folding portions 3, 3 having an Z-shaped cross section and the inner folded portions inner surfaces u of the outer folding portions 4, 4 are flat inner surfaces w. It is heat-welded (joined) and formed continuously in the longitudinal direction. The reference line X may be set at a position shifted left and right from the center line of the seat 2. In this case, the position of a back pasting portion 22a described later is also shifted left and right.

  In forming such a take-up roll 1, first, a known folding machine for forming a gusset folding section or the like to form the folding sections 3 and 3 and the outer folding sections 4 and 4 in the sheet 2. May be used. In the folding machine, for example, a guide plate substrate, a folded guide plate bent inwardly on both sides of the guide plate substrate, and a drive installed in an inserted state with respect to the folded guide plate from the outside. A thing provided with a board etc. can be used. Moreover, what is necessary is just to provide a well-known welding machine in the downstream of a folding machine. The welding machine only needs to have a heating roller and a presser roller, for example, and the folds 3 and 3 and the outer folds 4 and 4 are passed between the two rollers, and heat treatment is performed under the action of the pressing force. By doing so, the highly rigid joining columnar portions 3a and 3a and the outer joining columnar portions 4a and 4a can be continuously formed.

  Using the folding machine as described above, first, after forming the folding portions 3 and 3 having a Z-shaped cross section on the sheet 2 fed out from the winding raw material, the inward folding portion of the folding portions 3 and 3 is formed by the welding machine. By welding the inner surface u and the flat portion inner surface w with a predetermined width respectively, the joining columnar portions 3a and 3a are continuously formed, and then the outer folding portions 4 and 4 are formed with the folding machine, and then the outer sides with the welding machine. The outer joining columnar portions 4a and 4a may be continuously formed by welding the inward turned-up portion inner surface u and the flat portion inner surface w of the folding portions 4 and 4 with a predetermined width, respectively. Alternatively, the folding parts 3 and 3 and the outer folding parts 4 and 4 may be formed simultaneously with the folding machine, and the joining columnar parts 3a and 3a and the outer joining columnar parts 4a and 4a may be simultaneously formed with the welding machine. The order of the process and the welding process may be appropriately selected according to the design conditions of the winding material. In this case as well, welding with an ultrasonic sealer may be performed instead of the welding machine.

  In this way, the sheet 2 on which the four joining columnar portions 3a and 4a are formed in the longitudinal direction is wound up to form the winding raw fabric 1, and the winding raw fabric 1 is mounted on a pillow packaging machine to be used as a normal pillow. If packaging is performed, for example, a packaging bag 24 in a state in which an article R as shown in FIGS. 3A and 3B is stored can be obtained. The front portion 21 of the packaging bag 24 is filled with a portion 5 between the pair of joining columnar portions 3a, 3a, and the side portion 23 is a portion between the outer joining columnar portion 4a adjacent to the joining columnar portion 3a. 6 is applied, and the outer portion 7 of the outer joint columnar portion 4a is applied to the back surface portion 22 including the back pasting portion 22a. In FIG. 3B, reference numeral 25 denotes a notch for bag breaking formed in the welding seal portion 26. Instead of the welding seal portion 26, a fusing seal portion may be formed.

  As in the case of the previous embodiment, a generally used pillow packaging machine can be applied. That is, for example, a holder that can be detachably mounted on the take-up roll 1, a former for forming a sheet fed from the take-up roll 1 into a cylindrical shape, a conveyor for conveying articles, and back-sticking If the pillow packaging machine is equipped with a vertical sealer, a horizontal sealer for fusing and sealing the front and back of the sheet, etc., the above-described packaging bag 24 can be made without adding a folding machine or a welding machine. it can. 3 (a) and 3 (b) show a case of a forward pillow in which the article R is formed by wrapping the article R from above with a former, but an inverted pillow (illustrated) for placing the article R on the sheet. (Omitted) but can also be made. Further, the feeding direction of the sheet 2 is not limited to the horizontal pillow system in which the sheet is fed in the horizontal direction, but may be a vertical pillow system in which the sheet 2 is fed in the vertical direction.

  Further, the width A (see FIG. 1B) of the portion 5 between the pair of joining columnar portions 3a and 3a described above is set slightly wider than the width of the article R, for example, and is adjacent to the joining columnar portion 3a. The width B of the portion 6 between the matching outer joining columnar portions 4a is set to be slightly thicker than the thickness of the article R, and the width C of the outer joining columnar portion 4a and the outer portion 7 of the sheet 2 is C = (1/2 ) It is preferable to set to A + back pasting allowance. That is, it is only necessary to set an appropriate back pasting margin on both side edges 7a and 7a of the sheet 2 (see FIGS. 2A and 2B). Further, if the width b of heat welding applied to the folding part 3 and the outer folding part 4 is set to 3 to 15 mm, the sufficiently rigid joining columnar parts 3a and 3a and the outer joining columnar parts 4a and 4a are formed. be able to.

  The packaging bag 24 made as described above has a sharp appearance with a clean edge and a good appearance with rigidity due to the joining columnar portion 3a and the outer joining columnar portion 4a which are heat-welded. . The sheet 2 may be made of a material that can be easily torn in the longitudinal direction. When such a material is used, the bag body is easily broken when the article R is taken out from the packaging bag 24. The sheet 2 may be a composite of a heat-sealable material (film, non-woven fabric, etc.) and a paper material. If such a material is used, the paper material is printed and designed. And decoration can be improved.

  The composite sheet 2 has a configuration as shown in, for example, FIGS. 4A to 4D in addition to a sheet material and a heat-sealable film (for example, PP (polypropylene)) bonded together. Sheet 2 can be used. FIG. 4A shows a minute through-hole in the portion 5 between the joining columnar portions 3a, 3a of the base sheet in which the paper material and the heat-sealable film are bonded together (or made of only the heat-sealable film). And the peripheral edge of a breathable backing material (for example, a nonwoven fabric, a film having fine holes, etc.) U is welded to the back surface (inner surface) side, and the joining columnar portions 3a, 4a It is formed by welding each of the turn-back portion inner surface u and the flat portion inner surface w with a predetermined width. In this case, it is suitable for packaging such as bread that needs to release moisture to the outside.

  FIG. 4 (b) shows a case where heat sealing film material is applied only to the portion 5 between the joining columnar portions 3a, 3a, and both side edges of the film are bonded to the paper material and heat sealing film. Bonding columnar portions 3a and 3a are formed by welding to the inner edges of the portions 6 and 6 that are folded outward. In FIG.4 (c), it extends from the joining columnar part 3a and 3a formed by folding the raw material which consists of a heat-sealable film material a little outwards, and the both edges of the extension part are paper material and heat-sealability. The welding column 16 is overlapped on both side edges of the extended portion that is slightly inwardly extended from the joining columnar portions 4a and 4a of another material to which the above film is bonded. That is, two materials are overlapped and welded 16 at an intermediate portion between the inner joining columnar portion 3a and the outer joining columnar portion 4a. In FIG.4 (d), it extends outward from the joining columnar part 3a, 3a formed with the raw material which consists of a heat-sealable film material, and both the edge of the extension part 51 is a paper raw material and a heat-sealable film. Are welded to the inner edges of the outer portions 7 and 7 made of different materials and are folded outwardly to form the outer joining columnar portions 4a and 4a. When the packaging bag 24 is made with the sheet 2 as shown in FIGS. 4 (b) to 4 (d), the same effect as in the previous embodiment can be obtained, but the food R can be seen through from the front side. Therefore, there is an advantage that the contents can be clearly confirmed.

Figure 5 (a) (b) show different examples, in this case, instead of forming the notches 25 for bag rupture the weld seal portion 26, so that paste the cut tape 9 on the front portion 21. Therefore, the cut tape 9 is continuously pasted in advance on the sheet 2 of the take-up roll 1 at a location adjacent to the one joining columnar portion 3a. The cut tape 9 may be attached only to the front portion 21 or may be provided so as to be continuous from the front portion 21 to the back portion 22. In that case, although not shown, the cut tape is continuously applied to the vicinity of the outer joint columnar portion 4a shown on the right side of FIG. 5A so as to correspond to the cut tape 9 attached to the front portion 21. You can paste it.

[Embodiment 3]
6 (a) is a perspective view of a winding Tohara anti, (b) is a cross-sectional view, (c) is a sectional view of a packaging bag in a state of accommodating the article R. In the present embodiment, the outer folding portion 4 is formed on only one side of the sheet 2 of the winding web 1. In other words, the outer joining columnar portion 4a formed by joining the inwardly folded portion inner surface u of the outer folding portion 4 having a Z-shaped cross section formed outside the joining columnar portion 3a to the flat portion inner surface w is continuously formed. Is provided at the end edge 71a of the outer portion 71 of the outer joining columnar portion 4a, and the end pasting margin is also set at the end edge 61a of the outer portion 61 of the other joining columnar portion 3a. Has been.

In such winding Tohara web 1, as shown in FIG. 6 (b), the width D of the inside of the outer joint columnar portion 4a to the outer edge 71a of the outer portion 71, inside of the joining columnar portion 3a The width E from the edge 61a of the outer portion 61 to the outside of the edge 61a is equal to the width A of the portion 5 between the joining columnar portions 3a and 3a and the width B of the portion 6 between the joining columnar portion 3a and the outer joining columnar portion 4a. On the other hand, it is preferable that D = A + end pasting allowance and E = B + end pasting allowance. Therefore, the reference line X may be set at a position shifted from the center line so that such a relational expression is established.

Using this winding Tohara web 1, for example, can be obtained packaging bag 24 in a state of accommodating the article R as shown in FIG. 6 (c). The front portion 21 of the packaging bag 24 has a portion 5 between the pair of joining columnar portions 3a and 3a, one side portion 23 has a portion 6 between the outer joining columnar portions 4a adjacent to the joining columnar portion 3a, and the other. The outer portion 61 of the joining columnar portion 3a is applied to the side surface portion 23, and the outer portion 71 of the outer joining columnar portion 4a is applied to the back surface portion 22, respectively. Part 4A is formed. The end pasting portion 4A has the same appearance as the joining columnar portion 3a and the outer joining columnar portion 4a and has high rigidity. Therefore, it is possible to obtain a packaging bag 24 having a good appearance and a sharp appearance and rigidity with the edges of the article R surrounded by the columnar portions 3a, 3a, 4a and 4A (FIG. 3 (b)). )reference). In order to improve the finish of the end pasting portion 4A formed by welding the edges 61a and 71a, for example, a cutting margin is provided in advance on both edges 61a and 71a, and after the welding, an extra portion is provided. if so cut off the ends, the edges 61a, even if there is some deviation in the welding of 71a with each other, can be finished look better end bonded portion 4A (see Figure 6 (c)).

  It should be noted that the present invention is not limited to the embodiment, and can be freely changed in design or improved as necessary without departing from the gist of the invention. The flat portion inner surface w may be joined by welding with an ultrasonic sealer, adhesion with an adhesive, or the like in addition to heat welding with a welding machine. The article R is not limited to rice balls, and may be, for example, confectionery such as sushi and cake, bread such as sandwiches, and the like. Can be packaged. Moreover, the combination of the structure between embodiment is also free, for example, you may affix a cut tape on Embodiment 1,3.

(A) is the perspective view of the winding raw material which concerns on Embodiment 1 of this invention, (b) is sectional drawing of the sheet | seat drawn out from the winding raw material, (c) is sectional drawing of a packaging bag, (d ) Is a cross-sectional view of a sheet fed out from another take-up roll. (A) is a perspective view of the winding raw material which concerns on Embodiment 2 of this invention, (b) is sectional drawing of the sheet | seat drawn out from the winding raw material. (A) is sectional drawing of the packaging bag, (b) is a perspective view. (A)-(d) is sectional drawing of another sheet | seat. (A) is a perspective view of a different winding raw material, (b) is a perspective view of a packaging bag. (A) is a perspective view of the winding original fabric which concerns on Embodiment 3 of this invention, (b) is sectional drawing of the sheet | seat drawn out from the winding original fabric, (c) is sectional drawing of a packaging bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Raw material for winding, 2 ... Sheet, 3, 4 ... Folding part, 3a, 4a ... Joining columnar part, 5, 6, 7 ... part, 7a ... Side edge, 9 ... Cut tape, 21 ... Front part, 22 ... rear portion, 22a ... back lined portion, 23 ... side portion, 24 ... packaging bag, 61, 71 ... outer part, u ... inwardly folded portion inner surface, w ... flat inner surface, R ... things products

Claims (10)

A roll material (1) applied to a pillow packaging machine to make a packaging bag (24) containing an article (R),
The joining columnar portion (3a) formed by joining the inwardly folded portion inner surface (u) of the folding portion (3) having a Z-shaped cross section to the flat portion inner surface (w) and formed in a strip shape in the longitudinal direction A take-up roll for a pillow packaging machine, characterized in that at least a pair of sheets (2) constituting the take-up roll (1) is continuously provided.   The portion (5) between the joining columnar portions (3a) (3a) is applied to the front portion (21) of the packaging bag (24), and the outer portion (6) of the joining columnar portions (3a) (3a). The pillow packaging according to claim 1, wherein (6) is applied to the back surface portion (22) including the side surface portions (23) (23) and the back pasting portion (22a) of the packaging bag (24). Winding roll for machine.   The outer portion (6) of the joining columnar portion (3a) to be applied to the side surface portion (23) is folded back at a position corresponding to ½ of the planned width of the side surface portion (23). The winding raw material for pillow packaging machines according to claim 2. An inwardly folded portion inner surface (u) of the folded portion (4) having a Z-shaped cross section is joined to the inner surface (w) of the flat portion on the outer side of any one of the joining columnar portions (3a) and in the longitudinal direction. hoisting pillow packaging machine according to claim 1 for bonding a columnar portion formed in a band shape that was only set (4a), characterized Tohara anti.   A portion (5) between the joining columnar portions (3a) and (3a) is applied to the front portion (21) of the packaging bag (24), and an outer joining columnar portion adjacent to the joining columnar portion (3a) ( 4a) and the outer portion (61) of one of the joining columnar portions (3a) are applied to the side portions (23) and (23) of the packaging bag (24) to form the joining columnar shape. 5. The take-up roll for a pillow packaging machine according to claim 4, wherein the outer portion (71) of the portion (4 a) is applied to the back portion (22) of the packaging bag (24). On the outside of the joining columnar portions (3a) and (3a) , the inwardly folded portion inner surfaces (u) and (u) of the folded portions (4) and (4) having a Z-shaped cross section are formed into flat portion inner surfaces (w) and (w). 2. The take-up roll for a pillow packaging machine according to claim 1, wherein a pair of joining columnar portions (4 a) and (4 a) that are joined and formed in a strip shape in the longitudinal direction are provided.   A portion (5) between the joining columnar portions (3a) and (3a) is applied to the front portion (21) of the packaging bag (24), and an outer joining columnar portion adjacent to the joining columnar portion (3a) ( 4a) is applied to the side surface portion (23) of the packaging bag (24), and the outer portion (7) of the joining columnar portion (4a) is attached to the back of the packaging bag (24). The roll raw material for a pillow packaging machine according to claim 6, wherein the roll is applied to the back surface portion (22) including the portion (22a). The winding width for the pillow packaging machine according to any one of claims 1 to 7 , wherein a joining width (b) of the folding portions (3, 4) is set to 3 to 15 mm. The said sheet | seat (2) consists of a raw material with single-sided heat-sealing property, The winding raw material for pillow packaging machines in any one of Claim 1 thru | or 8 characterized by the above-mentioned. Said sheet (2) is heat-sealing properties of certain materials and paper materials pillow packaging machine winding Tohara anti according to any one of claims 1 to 8, characterized by being complexed.

Images