JP4411618B2 - Intermediate continuum for storage bag with zipper and manufacturing method - Google Patents

Description

  The present invention relates to an intermediate continuous body for a storage bag with a zipper and a manufacturing method.

  Conventionally, a storage bag with a zipper is used in order to be able to open and close after the contents are sealed. For example, there is a Japanese patent application, Japanese Patent Laid-Open No. 2000-219252. A conventional method for producing an intermediate continuous body for a storage bag with a zipper was a method of fusing a zipper along the longitudinal direction of a long belt-like sheet body.

  When enclosing the contents in a zippered storage bag manufactured by this method, it is necessary to separate the storage bags one by one in advance and then put the contents in each storage bag and enclose it. There was a problem that it took time and effort. That is, there is a problem that the zipper cannot be fused in the width direction of the long sheet body while intermittently feeding the long sheet body. In addition, in the case of a large bag for storing a large amount of rice grains and the like, if the zipper is opened, a large amount of rice grains and the like are discharged at a time, and it is difficult to discharge them one by one.

  Then, the manufacturing method of the intermediate | middle continuous body for storage bags with a zipper which concerns on this invention is the shuttle strip which has a slit part between the 1st zipper half which has a male part, and the 2nd zipper half which has a female part. A shuttle strip inserting step of inserting a tip, a zipper tip fusing step of fusing the tip of the first zipper half and the tip of the second zipper half to form a tip fused portion, and the tip fusing A feeding step of hooking the landing portion on the tip of the shuttle strip and feeding the first zipper half and the second zipper half together with the shuttle strip in the width direction between the opposed long sheet bodies, and Sheet shuttle that presses the hot platen to fuse the first zipper half and the second zipper half to the long sheet body with the shuttle strip fed between the long sheet bodies as a receiving member. Before performing the above-mentioned sheet fusion process, Is a method with a zipper engagement step of the closed the male and female portions in serial slits. Here, the long sheet body which opposes can also make one long sheet half-fold in a longitudinal direction, and shall mutually oppose.

  Moreover, the manufacturing method of the intermediate | middle continuous body for storage bags with a zipper which concerns on this invention is a shuttle strip which has a slit part between the 1st zipper half body which has a male part, and the 2nd zipper half body which has a female part. A shuttle strip inserting step of inserting a tip, a zipper tip fusing step of fusing the tip of the first zipper half and the tip of the second zipper half to form a tip fused portion, and the tip fusing A feeding step of hooking the landing portion on the front end of the shuttle strip and sending the first zipper half and the second zipper half together with the shuttle strip in the width direction between the two long sheets; Using the shuttle strip fed between the two long sheets as a receiving member, the hot platen is pressed to melt the first zipper half and the second zipper half into the long sheet. A sheet fusing step to be attached sequentially, rather than performing the above-mentioned sheet fusing step To a method with a zipper engagement step of the closed the male and female portions in the slit portion.

  In the zipper engaging step, the male part and the female part can be closed by pressing a pressing roller against one or both of the first zipper half and the second zipper half.

  Further, the shuttle strip may have a cooling flow path portion through which cooling water can flow.

  Further, in the sheet fusing step, the fusion sheet and the inside and outside of the zippered storage bag can be ventilated at a portion where the long sheet body and one of the first zipper half and the second zipper half overlap. It is good also as providing the non-fusion | fusion part to perform alternately.

  In addition, the intermediate continuous body for a storage bag with a zipper according to the present invention has a long sheet body facing each other, and a plurality of zippers inserted between the long sheet bodies, An intermediate continuous body for a storage bag with a zipper, which is arranged in the longitudinal direction of a long sheet body at a predetermined interval.

  In the method for manufacturing an intermediate continuum for a storage bag according to the present invention, a shuttle strip having a slit portion is inserted between a first zipper half having a male portion and a second zipper half having a female portion. A shuttle strip inserting step, a zipper tip fusing step for fusing the tip of the first zipper half and the tip of the second zipper half to form a tip fused portion, and the tip fused portion Is attached to the front end of the shuttle strip, and the first and second zipper halves together with the shuttle strip are inclined at an angle of 30 ° to 60 ° with respect to the longitudinal direction between the opposing long sheets. The first zipper half and the second zipper half while the hot plate is pressed as the receiving member, and the shuttle strip fed between the long sheet bodies as the receiving member. A sheet fusing step for fusing to the long sheet body. Here, the long sheet body which opposes can also make one long sheet half-fold in a longitudinal direction, and shall mutually oppose.

  In the method for manufacturing an intermediate continuum for a storage bag according to the present invention, a shuttle strip having a slit portion is inserted between a first zipper half having a male portion and a second zipper half having a female portion. A shuttle strip inserting step, a zipper tip fusing step for fusing the tip of the first zipper half and the tip of the second zipper half to form a tip fused portion, and the tip fused portion Is hooked on the tip of the shuttle strip, and the first and second zipper halves together with the shuttle strip are inclined at 30 ° -60 ° with respect to the longitudinal direction between the two long sheets. The first zipper half and the second zipper half while pressing the hot platen as a receiving member with the feeding step for feeding at an angle and the shuttle strip fed between the two long sheets. A sheet fusion step of fusing the body to the long sheet body.

  Further, the shuttle strip used in this manufacturing method has the slit portion formed from the base end to the tip, and the zipper is inserted into the slit while the male portion and the female portion are closed. A wide introduction part for feeding from the base end of the part is formed at the base end of the slit part.

  Moreover, in the said feeding process, the width direction dimension of the depth which sends the said zipper between two long sheet bodies was set to 20%-40% of the width dimension of a long sheet body.

  According to the manufacturing method of the present invention, the zipper can be fused in the width direction of the long sheet body while intermittently feeding the long sheet body. Moreover, according to the manufacturing method of the intermediate | middle continuous body for storage bags which concerns on this invention, a zipper can be inserted skillfully in the inclination direction (not a longitudinal direction), and it can fuse | fuse. Therefore, the intermediate continuous body for a storage bag with a zipper according to the present invention is cut into separate storage bags one by one as in the prior art, and then the contents are put into each storage bag and sealed. There is no need, and the contents can be efficiently sealed by the automatic sealing device. Moreover, even in the case of a large bag for storing large-capacity rice grains or the like, it is easy to discharge the contents one by one, and handling at the time of discharging the contents becomes easy.

It is a top view which shows the intermediate | middle continuous body for storage bags with a zipper manufactured by the 1st Embodiment of this invention. It is a top view which shows the state just before inserting the zipper of 1st Embodiment between two elongate sheet bodies. It is XX cross-sectional enlarged view of FIG. It is a YY cross-sectional enlarged view of FIG. It is a top view which shows the guide insertion state of 1st Embodiment. FIG. 6 is an enlarged view of a ZZ cross section in FIG. 5. It is a principal part expanded sectional view which shows a sheet | seat melt | fusion process. It is a top view which shows the shuttle strip used for 2nd Embodiment. It is principal part sectional drawing which shows the shuttle belt board used for 3rd Embodiment. It is a top view of the intermediate continuum which shows a 4th embodiment. It is a top view which shows the state just before inserting the zipper of 4th Embodiment between two elongate sheet bodies. It is a top view which shows the shuttle strip board insertion process (and fusion process) of 4th Embodiment. It is the Y1-Y1 cross-section enlarged view of FIG. It is a top view of the modification of a shuttle strip. It is a simplified plane explanatory view for explaining a manufacturing process order. It is a top view which shows one Embodiment of a storage bag. It is usage method explanatory drawing. It is a principal part top view which shows other embodiment of a storage bag. It is explanatory drawing of the subsequent usage method of an intermediate | middle continuous body.

  FIG. 1 shows an intermediate continuum 1 for a storage bag with a zipper manufactured according to the first embodiment of the present invention. The intermediate continuous body 1 for a storage bag with a zipper has a long sheet body 5 facing up and down, and a plurality of zippers 12 inserted between the long sheet bodies 5, and the plurality of zippers 12 are arranged in the vertical direction. Are inserted between the long sheet bodies 5 facing each other and arranged in the longitudinal direction of the long sheet bodies 5 with a predetermined interval. That is, one independent zipper 12 is inserted and fused along the width direction of the long sheet body 5, and the other independent zipper 12 extends from the position where the one zipper 12 is fused in the longitudinal direction. Are arranged in the longitudinal direction of the long sheet body 5 at predetermined intervals by being inserted and fused along the width direction of the long sheet body 5. It becomes. When the long sheet body 5 has a rectangular shape as in the present embodiment, each zipper 12 is arranged in such a manner that the longitudinal direction line and the longitudinal direction line of the long sheet body 5 are substantially orthogonal. The intermediate continuum 1 for a storage bag with a zipper is finally cut at the position of the two-dot chain line (cut line N) in FIG. 1 to produce a storage bag 2 with a zipper. A range indicated by dots in FIG. 1 indicates the fused portion 3. Therefore, the zippered storage bag intermediate continuous body 1 includes a plurality of storage portions formed by fusing the side portions 22 and the mouth portions 23 of the long sheet body 5 and a plurality of storage portions that can be opened and closed. The plurality of zippers 12 are arranged at predetermined intervals in the longitudinal direction of the long sheet body 5. In order to enclose the contents (not shown) in the produced storage bag 2, the contents are put into the opening 4 formed by the above-mentioned separation by the contents feeder shown in FIG. Fuse.

  Next, the first embodiment of the present invention will be specifically described. First, as shown in FIG. 2, the two long sheet bodies 5 made of plastic (for example, nylon ramie) are intermittently fed and fed from right to left in FIG. It is preferable to stop the feeding of the long sheet body 5 before the feeding process described later is started. At the latest, the feeding of the long sheet body 5 is stopped by the time the sheet fusion process is started, and the feeding of the long sheet body 5 is stopped at least during the sheet fusion process.

  First, a shuttle strip insertion process is performed. Specifically, a shuttle strip 11 (see FIG. 14) having a slit 10 between a first zipper half 8a having a male part 6 (see FIG. 4) and a second zipper half 8b having a female part 7. (See below). The two zipper halves 8 (that is, the first zipper half 8a and the second zipper half 8b) are made of plastic (for example, polyethylene). The zipper half 8 is elongated and can be easily replenished as described below. The zipper 12 is formed by the first zipper half 8a and the second zipper 8b.

  Thereafter, a zipper tip fusion process is performed (not shown). Specifically, the tips 13 (see FIGS. 2 and 3) of the two zipper halves 8 are fused together to form the tip fused portion 14. That is, the front end fused portion 14 is formed by fusing the front end 13a of the first zipper half 8a and the front end 13b of the second zipper half 8b.

  Next, as shown in FIGS. 2 to 6, a feeding process is performed. Specifically, the front end fusion part 14 is hooked on the front end 15 of the shuttle strip 11, and the first zipper half 8 a and the second zipper half 8 b together with the shuttle strip 11 are formed into two long sheets 5. In the width direction during. In other words, the shuttle strip 11 is used as a zipper feeding member, and the shuttle strip 11 and the zipper 12 are integrated, so that there is a difference in the width direction (arrow A direction in FIG. 2) between the two long sheets 5. To the guide insertion state (the state shown in FIG. 5).

  A zipper engagement process is performed simultaneously with the feeding process. Specifically, the pressing roller 16 is pressed against one or both of the first zipper half body 8a and the second zipper half body 8b so that the male part 6 and the female part 7 are closed (engaged). That is, as shown in FIGS. 2 and 5, the pressing roller 16 is disposed on the front side (the outer side in the width direction and the side where the shuttle belt plate 11 is disposed) of the two long sheet bodies 5. Then, immediately before inserting the shuttle strip 11 and the zipper 12 between the two long sheets 5, the pressing roller 16 presses one or both of the first zipper half 8a and the second zipper half 8b. To do.

  At the end of the above-mentioned feeding process, as shown in FIG. 4, the engaging portion 9 that closes the male portion 6 of the first zipper half 8a and the female portion 7 of the second zipper half 8b is the shuttle strip 11 The shuttle belt plate 11 is inserted between the two zipper halves 8 so that the side edges 17 of the two zipper halves 8 are not in contact with each other. (Guide inserted state).

  Then, a sheet | seat melt | fusion process is performed in a guide insertion state. Specifically, the first zipper half body 8a and the second zipper half body 8b are pressed while the hot platen 18 is pressed using the shuttle strip 11 sent between the two long sheet bodies 5 as a receiving member. It is fused to the long sheet body 5. The shuttle strip 11 receives the pressing force of the hot platen 18 (FIGS. 5 to 7; however, the hot platen 18 is not shown in FIG. 5). In the sheet fusion process, the long sheet body 5 and one of the first zipper half body 8a and the second zipper half body 8b can be ventilated inside and outside the fusion part 3 and the zippered storage bag 2 Non-fused portions 19 are provided alternately (see FIG. 1).

  After the sheet fusion step, the shuttle strip 11 is pulled out from between the two long sheets 5. At this time, it is preferable to perform a shuttle strip insertion process. For example, a guide protrusion 20 (see FIGS. 2 and 5) for guiding the elongated zipper half 8 is provided on the shuttle strip 11 and a predetermined direction (the guide protrusion 20 is used to fix the zipper half 8). The zipper half body 8 is fed from the guideable direction).

  In addition to the above steps, a zipper cutting step is provided. Specifically, the long zipper half 8 is cut into a length dimension L (see FIG. 1) substantially the same as the width dimension W (see FIGS. 2 and 5) of the long sheet body 5. In the first embodiment, the cutting step is performed simultaneously with the tip fusion step. During the tip fusion process, the zipper half 8 can be fused (cut by heat), so that cutting and fusion can be performed easily and reliably (at an appropriate position).

  The shuttle strip 11 is configured to reciprocate (intermittently) by a drive mechanism (not shown) (for example, a motor and a linear guide or a motor and a link mechanism). Further, the pressing roller 16 is configured to freely rotate and stop. For example, the male part 6 and the female part 7 can be appropriately engaged by adjusting the rotation or stop state of the pressing roller 16 in the zipper engaging step. In addition, after the zipper 12 is fused to the long sheet body 5, the two long sheet bodies 5 are attached to the three sides (both sides 22 and mouth 23) around the zippered storage bag 2 on the downstream side. Corresponding portions are fused to each other (see FIG. 1). Although not shown in the figure, before (or after) the three peripheral sides are fused, both ends of the engaging portion 9 of the zipper 12 (portions overlapping the planned fusion portions of the side portions 22) are clamped from above and below. It is desirable to reduce the thickness dimension by pressing with a heating pressing member (small hot platen).

  FIG. 8 shows a second embodiment. The slit 10 of the shuttle strip 11 has a cutout 24 in the width direction of the shuttle strip 11 to avoid a cutting blade (not shown) that cuts the zipper half 8. Then, the zipper cutting process is performed simultaneously with or before or after the sheet fusion process in the guide insertion state. After the shuttle strip 11 is pulled out from between the two long sheets 5 and before the shuttle strip insertion step, the tip fusion step is performed. The shuttle strip 11 can be fed to the long sheet body 5 while being pulled out from between the two long sheet bodies 5. Other configurations are the same as those of the first embodiment.

  FIG. 9 shows a third embodiment. The shuttle strip 11 has a cooling channel portion 21 through which cooling water can flow. 21a indicates the forward path. 21b indicates the return path. Other configurations are the same as those of the first embodiment.

  In the present invention, the design can be changed. For example, the zipper engagement step may be performed alone before the feeding step. The long sheet body 5 may be a single plastic long sheet. In this case, one long sheet may be half-folded in the longitudinal direction, and the original part and the folded part may be opposed to each other. Two rows of intermediate continuums 1 may be manufactured simultaneously. That is, the width dimension of each of the two long sheet bodies 5 is set to about twice the width dimension of the storage bag 2 with a zipper to be manufactured. Then, the length of the shuttle strip 11 is set to at least twice the width of the zippered storage bag 2 to be manufactured. The shuttle belt plate 11 is hooked with the front end fusion portion 14 of the zipper 12 and fed from the width direction between the two long sheet bodies 5 having a double width, and the zipper 12 is attached to the long sheet body 5. Fuse. Thereafter, the two sheet bodies 5 are fused to each other so that the intermediate continuous bodies 1 and 1 shown in FIG. 1 are arranged in the width direction. Thereafter, the intermediate continuum having a double width is cut at the center in the width direction to produce the intermediate continuum 1 shown in FIG. 1 in two rows. Three rows, four rows or more may be manufactured simultaneously.

  As described above, according to the present invention, the shuttle strip 11 having the slit portion 10 is inserted between the first zipper half 8 a having the male portion 6 and the second zipper half 8 b having the female portion 7. A band inserting step, a zipper tip fusing step for fusing the tip 13a of the first zipper half 8a and the tip 13b of the second zipper half 8b to form the tip fused portion 14, and the tip fused portion 14 is hooked on the tip 15 of the shuttle strip 11 and the first zipper half 8a and the second zipper half 8b together with the shuttle strip 11 are fed between the two long sheets 5 in the width direction. The first zipper half body 8a and the second zipper half body 8b are long while pressing the heating platen 18 as a receiving member in the cutting process and the shuttle strip 11 sent between the two long sheet bodies 5. Sheet fusing process for fusing to the long sheet body 5 in order, and before performing the sheet fusing process, Since the male part 6 and the female part 7 are closed in the groove part 10, the zipper 12 is moved in the width direction of the long sheet body 5 while intermittently feeding the long sheet body 5. Can be fused. Therefore, after that, the contents can be efficiently sealed by the automatic sealing device.

  In the zipper engagement step, the male roller 6 and the female member 7 are closed by pressing the pressing roller 16 against one or both of the first zipper half 8a and the second zipper half 8b. The male part 6 and the female part 7 can be reliably engaged.

  In addition, since the shuttle strip 11 has the cooling flow path portion 21 through which the cooling water can flow, the shuttle strip 11 can be prevented from being heated to a high temperature by the hot platen 18. Therefore, the intermediate continuous body 1 for a storage bag with a zipper can be manufactured smoothly and appropriately over a long period of time.

  Further, in the sheet fusion step, the fusion sheet 3 and the inside and outside of the zippered storage bag 2 are ventilated in a portion where the long sheet body 5 and one of the first zipper half body 8a and the second zipper half body 8b overlap. Since the non-fused portions 19 that can be made are alternately provided, the air permeability of the zippered storage bag 2 is good. Therefore, it is suitable for storing grains such as rice and wheat that require air permeability.

  Furthermore, the 4th Embodiment of this invention is shown to FIGS. The storage bag intermediate continuous body 1 with a zipper is a belt-like (long) body that is continuous in the vertical direction of FIG. 10, and has a plurality of zippers 12 inserted between the long sheet bodies 5. The zipper 12 is inserted between the long sheet members 5 facing each other in the vertical direction, and arranged in the longitudinal direction of the long sheet members 5 with a predetermined interval. That is, one independent zipper 12 is inserted and fused at an inclination angle of 30 ° to 60 ° with respect to the longitudinal direction of the long sheet body 5, and the other independent zipper 12 is the one zipper The plurality of zippers 12 are long sheet bodies by being inserted and fused at the same inclination angle as that of the one zipper 12 at a position at a predetermined interval in the longitudinal direction from the position where the 12 is fused. 5 are arranged at predetermined intervals in the longitudinal direction. Accordingly, the intermediate continuous body 1 for a storage bag with a zipper includes a plurality of storage portions 33 formed by fusing both side portions and mouth portions of the long sheet body 5 and a plurality of storage portions 33 that can be opened and closed. The plurality of zippers 12 are arranged at predetermined intervals in the longitudinal direction of the long sheet body 5. The storage bag intermediate continuous body 1 with a zipper is cut off at a two-dot chain line (cut line) N when the contents are subsequently charged (stored) to form a storage bag 2 with a zipper (see FIG. 16). . After that, in order to put the granular material etc. in the automatic sealing device 45 (illustrated in FIG. 19), the contents K are automatically fed from the opening 4 formed by cutting sequentially with a two-dot chain line N. After that, the opening 4 is sealed (closed) by fusion.

  A method for manufacturing such an intermediate continuous body 1 will be described. In FIGS. 11 and 15, the two long plastic sheets 5 are intermittently fed in the longitudinal direction as indicated by an arrow S. One long sheet body can be used by folding it in the longitudinal direction.

  The two long sheet bodies 5 are made of, for example, a laminated outer layer made of nylon and an inner layer made of polyethylene or polypropylene.

  First, a shuttle strip insertion process is performed. Specifically, a shuttle strip insertion into which a shuttle strip 11 having a slit 10 is inserted between a first zipper half 8 a having a male portion 6 and a second zipper half 8 b having a female portion 7. Perform the process. As shown in FIG. 11, FIG. 12, FIG. 13 and FIG. 14, the shuttle strip 11 is formed with a slit portion 10 extending from the proximal end 30 to the distal end 15, and a wide introduction is provided at the proximal end of the slit portion 10. A portion 31 is formed (notched).

The YY cross section and Y1-Y1 cross section of FIG. 2 are as shown in FIGS. The male part 6 of the first zipper half 8a of the zipper 12 and the female part 7 of the second zipper half 8b remain closed and close to each other while keeping the parallel state with the shuttle strip 11; Only the lower second zipper half 8 b passes through the wide introduction portion 31, and the left and right of the shuttle strip 11 are placed in the concave groove portion R between the side portions 17 and 17 excluding the male portion 6 and the female portion 7. The strips 11a and 11b are inserted. The shape of the wide introduction portion 31 is a roof type having left and right slope sides 32, 32. And, the lateral width dimension W ₃₁ of the wide inlet portion 31 is set larger than the width W ₁₂ of the zipper 12. The thickness dimension of the shuttle strip 11 is set to be substantially the same as the width dimension W _r of the concave groove R of the closed zipper 12, and the zipper 12 gradually approaches the proximal end 30 of the shuttle strip 11 from FIG. Finally, after passing through the wide introduction portion 31, as shown in FIG. 4, the strip portions 11a and 11b are inserted into the recessed grooves R and R of the zipper 12 sent in the closed state.

  A zipper that forms the tip fused portion 14 by fusing the tip 13a of the first zipper half 8a and the tip 13b of the second zipper half 8b in advance before the shuttle strip inserting step is performed. A tip fusion process is performed. By pressurizing and heating with a small heated pressing tool (not shown), as shown in FIGS. 11 and 3, the front end fusion portion 14 is formed, and the front end 15 of the shuttle strip 11 is pulled out forward. The zipper 12 can be inserted between the two long sheets 5 and 5 integrally with the advancement of the shuttle strip 11 in the direction of arrow A in FIG.

  That is, as shown in FIG. 11 to FIG. 12, the feeding process of feeding while the front end fused portion 14 of the zipper 12 is hooked on the front end 15 of the shuttle strip 11 between the long sheet bodies 5 and 5 is performed next. Done.

  In the present invention, the zipper 12 and the shuttle strip 11 are fed together between the two long sheet bodies 5 at an inclination angle θ of 30 ° to 60 ° with respect to the longitudinal direction. When one long sheet is used by folding it in the long direction, the sheet is fed between the opposed surfaces. In such an oblique feeding process, it is possible to select whether the long sheet body 5 is fed in the arrow S direction or stopped, but the sheet fusion in the next process can be selected. In the process, be sure to stop once.

  This sheet fusion process is the same as in the first embodiment. That is, as shown in FIGS. 6 to 7, the heating plates 18 and 18 are pressed as shown by arrows E and E (from the top and bottom) to close the first and second zipper halves 8a and 8b in the closed state. In 17, the sheet is fused to the long sheet body 5. The shuttle strip plate 11 (the strip pieces 11a and 11b) that support each side portion 17 from the concave groove portion R side receives the pressing force of the hot platen 18 as a receiving member such as a cutting board.

The hot platen 18 has a concave groove 18A for avoiding interference between the male portion 6 of the zipper 12 and the bulging portion of the engaging portion 9 of the female portion 7, and the side portion 17 is formed on the inner surface of the long sheet body 5. It can be strongly fused by heating under pressure. At this time, the hot platen 18 is formed to be sufficiently long so as to be simultaneously fused over the entire length to the zipper insertion portion inserted in an inclined shape, and heated to a length equal to the feed depth L ₁₂ of the zipper 12. The length of the board 18 is preferably set. FIG. 12 shows the hot platen 18 with a two-dot chain line. Further, it is desirable that the tip 13 of the engaging portion 9 of the zipper 12 be strongly heat-sealed at the front end of the hot plate 18 by omitting the concave groove 18A. Good to do.

Then, for the SL infeed depth L ₁₂ has a width dimension W ₀ is, it is desirable to set to 20% to 40% of the width W ₅ of the long sheet 5.

    After the sheet fusion step, the shuttle strip 11 is pulled out from the two long sheets 5 (shuttle strip pullout step). That is, the shuttle strip 11 of FIG. 12 is pulled out to the lower left of the drawing, and then the above-described tip fusion process is performed. Immediately thereafter, a zipper cutting step is performed. That is, the zipper 12 is cut along the left side (left edge) of the long sheet body 5 or outside in the vicinity of the right side (right edge) in the zipper width direction (cutting), or cut into a blade. And cut. Returning to the state of FIG. 11, two long sheet bodies 5 are fed by one pitch in the arrow S direction.

    The shuttle strip 11 (see FIG. 14) is reciprocated by driving means such as a motor and a linear guide or a motor and a link mechanism.

    As a preferred embodiment, as shown in FIG. 9, the shuttle strip 11 has a cooling flow path portion 21 through which cooling water can flow. 21a indicates the forward path. 21b indicates the return path.

    Next, FIG. 15 shows a simplified illustration of the sequential addition of various processes (of various steps) while the long sheet body 5 is intermittently sent in the direction of the arrow S (longitudinal direction). FIG. The symbol (I) in FIG. 10 indicates the state after the steps of FIG. 11 and FIG. 12 described above, and further, the shuttle strip 11 is pulled out and the zipper cutting step is performed. In the position, the fusion part 3 </ b> A in the width direction is formed (with a heating plate not shown). A so-called bottom fusion process is performed. The fusion part 3 </ b> A in the width direction is continuously connected to the inner end part 12 a of the zipper 12.

    Next, in the code (III), a perforation 25 for cutting is formed. That is, as shown in FIG. 16, a perforation 25 is formed with the inclination angle θ of the zipper 12 in parallel with the zipper 12 and on the corner portion 27 side (outside side) of the zipper 12.

    Thereafter, as indicated by reference numeral (IV), the longitudinal fusion portions 3B and 3B are formed along both side ends to produce the intermediate continuum 1 (see FIG. 10, however, there is no perforation 25 in FIG. 10). Exemplifies the case). After that, the intermediate continuous body 1 shown in FIG. 15 is wound (stored) in a roll shape by a winding roller or the like.

    After that, as shown in FIG. 19, the content (granular material) K is charged by a content (granular material) charging machine (automatic enclosure device) 45. That is, the roll-shaped intermediate continuous body 1 wound as described above is intermittently fed while giving the feed Q, and the lower side portion 28 serving as the upper end is sucked by a suction cup. 46, 46 sucks 47, 47 to form the opening 4, and the contents (granular material) K is charged from the hopper 48, and immediately thereafter, the lower side 28 (opening 4) as the upper end is closed. Then, the content (granular material) K is sealed by fusion with a fusion machine (ultrasonic or heat fusion) (not shown), and further cut as indicated by arrows C and C. A two-dot chain line N in FIG. 10 is a cutting position by arrows C and C in FIG. 19, and FIG. 19 is turned upside down, and in FIG.

    In this way, by fusion after the contents K shown in FIG. 19 are fused, another width direction fusion part 29 is formed as shown in FIG. 16, and the four-side fusion parts 29, 3A, 3B, 3B are formed. Thus, the storage bag 2 in an enclosed state with the contents enclosed can be obtained.

    As illustrated in FIG. 16, the storage bag 2 according to the present invention is obtained by fusing a plastic front sheet body 35 and a back sheet body 36 with an upper side portion 41, a lower side portion 42, a left side portion 43, and a right side portion 44. The fused parts 3A, 29, 3B, and 3B are formed, and the granular material storage part 33 that encloses the granular material K is formed. The zipper 12 is interposed between the front sheet body 35 and the back sheet body 36 at an angle 27 of 30 ° to 60 ° at the corner portion 27 of the upper side portion 41 and the left side portion 43. In addition, it is desirable to form the perforation 25 for cutting on the corner 27 side from the zipper 12, and it is possible to easily cut the triangular piece 34 including the corner 27 by hand without using scissors or the like. In addition, even if the triangular piece 34 is cut off along the perforation 25 by inadvertent or malicious means, the contents (granular material) K is not accidentally discharged by the zipper 12.

    In FIG. 16, if the perforation 25 is cut off and the zipper 12 is opened, as shown in FIG. 17, it is held upside down with the hand H, and the contents (granular material) K are appropriately fed from the opening 37. Discharge / discharge can be performed at an appropriate speed, and a preferable discharge speed can be secured particularly for the large-capacity (large-size) storage bag 2.

16 and 17, the width dimension T of the opening 37 is set to about 20% to 40% of the width dimension W ₃₃ of the storage part 33 inside the storage bag 2.

    If the width dimension T of the opening 37 is less than the lower limit value, there is a problem that the discharge speed becomes too slow. Conversely, if the upper limit value is exceeded, the discharge speed becomes excessive and the discharge speed of the contents K is increased. It becomes difficult to control.

    In addition, unlike FIG. 16, it is also possible to arrange the zipper 12 (not shown) at the corner portion 27A of the upper side portion 41 and the right side portion 44 with an inclination angle θ of 30 ° to 60 °. is there. As shown in FIG. 16, when the contents K are rice grains or the like, it is preferable to form the ventilation portion 38 so that air can enter and exit. The contents K can be freely used as other granular foods, dog foods, cat foods, plastic pellets, fertilizers, and the like.

    Next, in another embodiment shown in FIG. 18, as apparent from the comparison with FIG. 16, a band-like handle 49 is accommodated in the accommodation pocket 50 of the upper side portion 41 so as to be drawn out. A two-dot chain line indicates a state in which the handle 49 is pulled out. The configuration indicated by the same reference numerals as in FIG.

    As described above, according to the present invention, the shuttle strip 11 having the slit portion 10 is inserted between the first zipper half 8 a having the male portion 6 and the second zipper half 8 b having the female portion 7. A shuttle band inserting step, a zipper tip fusing step for fusing the tip 13a of the first zipper half 8a and the tip 13b of the second zipper half 8b to form a tip fused portion 14, and The front end fusion part 14 is hooked on the front end 15 of the shuttle strip 11, and the first zipper half 8 a and the second zipper half 8 b together with the shuttle strip 11 are elongated between the two long sheets 5. As a receiving member, a hot platen 18 is used as a receiving member for feeding with an inclination angle θ of 30 ° to 60 ° with respect to the direction and the shuttle strip 11 sent between the two long sheets 5. And the first zipper half body 8a and the second zipper half body 8b are fused to the long sheet body 5. The sheet fusion process is a method of manufacturing an intermediate continuum, and the two zippers 12 are efficiently and accurately arranged in a direction that is not difficult in the conventional manufacturing method. Can be interposed between the long sheet bodies 5 and 5. Therefore, after that, as illustrated in FIG. 19, it can be efficiently sealed with an automatic sealing device (content charging machine).

    The shuttle strip 11 is formed with the slit portion 10 extending from the proximal end 30 to the distal end 15, and the zipper 12 is slit while the male portion 6 and the female portion 7 are closed. Since the wide introduction portion 31 for feeding from the base end of the portion 10 is formed at the base end of the slit portion 10, the male portion 6 and the female portion 7 of the zipper 12 do not cause poor engagement and can be quickly While feeding, the shuttle strip 11 can smoothly feed the two long sheet bodies 5 and 5 diagonally.

Further, in the feeding step, the width direction dimension W ₀ of the depth L ₁₂ for feeding the zipper 12 between the two long sheet bodies 5 is set to about 20 of the width dimension W ₅ of the long sheet body 5. Since it was set to% -40%, as a large-capacity large-sized bag, a bag capable of accurately discharging an appropriate amount is easily obtained.

    Further, a storage in which a granular material storage portion 33 for sealing the granular material K is formed by fusing the upper side portion 41, the lower side portion 42, the left side portion 43, and the right side portion 44 of the plastic front sheet body 35 and the back sheet body 36. In the bag, the zipper 12 has an inclination angle θ of 30 ° to 60 ° at the corner portion 27 of the upper side portion 41 and the left side portion 43 or the corner portion 27A of the upper side portion 41 and the right side portion 44. Since it is interposed between 35 and the back sheet body 36, the discharge speed can be easily controlled so that the contents K are not discharged excessively at once (as shown in FIG. 17), which is convenient. .

    Further, since the cutting perforations 25 are formed in parallel with the zipper 12 at the inclination angle θ and on the corners 27 and 27A side of the zipper 12, the corners 27 and 27A are accidentally cut off. Even in such a case, the stored item is not discharged, which is preferable.

Claims (7)

Between the first zipper half (8a) having the male part (6) and the second zipper half (8b) having the female part (7), the shuttle strip (11) having the slit part (10) is provided. The shuttle strip insertion process,
A zipper tip fusing step of fusing the tip (13a) of the first zipper half (8a) and the tip (13b) of the second zipper half (8b) to form a tip fused portion (14); ,
The front end fusion part (14) is hooked on the front end (15) of the shuttle strip (11) and the first zipper half (8a) and the second zipper half (8b) together with the shuttle strip (11). A feeding step of feeding the sheet in the width direction between the opposed long sheet bodies (5),
The shuttle belt plate (11) fed between the long sheet bodies (5) is used as a receiving member while pressing the heating plate (18), and the first zipper half (8a) and the second zipper half A sheet fusion step of fusing the body (8b) to the long sheet body (5),
A zipper comprising a zipper engaging step for closing the male portion (6) and the female portion (7) in the slit portion (10) before performing the sheet fusion step Method for producing intermediate continuum for attached storage bag.   In the zipper engaging step, a pressing roller (16) is pressed against one or both of the first zipper half (8a) and the second zipper half (8b), and the male part (6) and female part (7 ) In a closed state. The method for producing an intermediate continuous body for a storage bag with a zipper according to claim 1.   The method for producing an intermediate continuous body for a storage bag with a zipper according to claim 1 or 2, wherein the shuttle strip (11) has a cooling channel portion (21) through which cooling water can flow.   In the sheet fusing step, a fused portion (3) is formed in a portion where one of the long sheet body (5) and the first zipper half (8a) and the second zipper half (8b) overlaps, The method for producing an intermediate continuous body for a storage bag with a zipper according to claim 1, 2 or 3, wherein non-fused portions (19) that allow ventilation inside and outside of the storage bag with a zipper (2) are provided alternately. Between the first zipper half (8a) having the male part (6) and the second zipper half (8b) having the female part (7), the shuttle strip (11) having the slit part (10) is provided. The shuttle strip insertion process,
A zipper tip fusing step of fusing the tip (13a) of the first zipper half (8a) and the tip (13b) of the second zipper half (8b) to form a tip fused portion (14); ,
Hooked the tip fused portion (14) to the tip (15) of the shuttle strip (11), the shuttle strip (11) are both first zipper half (8a) · second zipper half (8b ) With a slant angle (θ) of 30 ° to 60 ° with respect to the longitudinal direction between the opposed long sheet bodies (5),
The shuttle belt plate (11) sent between the long sheet bodies (5) is used as a receiving member to press the heating plate (18) to press the first zipper half (8a) and the second zipper half. A sheet fusion step of fusing the body (8b) to the long sheet body (5),
The shuttle strip (11) is formed with the slit portion (10) from the proximal end (30) to the distal end (15), and the male portion (6) and the female portion (7) are closed. A wide introduction part (13) for feeding the zipper (12) from the base end of the slit part (10) in the closed state is formed at the base end of the slit part (10). A method for producing an intermediate continuous body for a storage bag with a zipper. In the feeding step, the width direction dimension (W ₀ ) of the depth (L ₁₂ ) for feeding the zipper (12) between the long sheet bodies (5) is the width of the long sheet body (5). method for manufacturing a zippered storage bag intermediate continuum of claim 5 which is set to 20% to 40% of the dimension (W _5).   The manufacturing method of the intermediate continuous body for storage bags with a zipper of Claim 6 which has the process of winding an intermediate continuous body in roll shape.

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