JPS58167154A - Method and device for manufacturing packing paper bag - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for manufacturing a wrapping paper bag for hygienically storing small items such as disposable chopsticks, toothpicks, and ice cream spoons. A strip of paper was folded in half in the longitudinal direction and the left and right edges were glued together, and the opening at one end of the bag thus formed was used as an entrance for disposable chopsticks and the like. In addition, at one end of the bag, the tip of the front paper of the two folded overlapping pieces of paper is cut diagonally across its entire width in order to facilitate the insertion and removal of disposable chopsticks, etc. It's normal.

However, in manufacturing such wrapping paper bags, as a mechanism for folding long strips of paper into two in the longitudinal direction, a reversing roll that rotates in the opposite direction to the feed roll of the paper strip is used as an opposing spool and a feed roll. After the first half of the paper is passed back by the rolls, the longitudinal center part of the paper is introduced between the feed roll and the reversing roll, which makes the mechanism itself complicated. In addition to this, as mentioned above, it is necessary to cut out only the leading edge of the front paper of the two folded pieces of paper over its entire width, so for example, rolls are used as the material for the paper pieces. Because it was difficult to adopt a method of continuously feeding paper materials, improvements in production efficiency were hindered.

The present invention has been made in view of the above circumstances, and provides a wrapping paper bag having a structure different from conventional ones, that is, a strip of paper is folded in half in the width direction, and the folded edge and one longitudinal end of the bag are folded in half in the width direction. To efficiently produce a wrapping paper bag made by gluing the same material, and to provide the same purpose of use as that of conventional wrapping paper bags.

That is, the present invention simultaneously wraps a wrapping paper sheet, in which a large number of equal-length partition strips are formed in four rows in the left and right width direction, consecutively in the feeding direction, one pair at a time, by various means for carrying out a predetermined process. The present invention is for manufacturing paper bags continuously, and the present invention will be explained below according to a preferred embodiment shown in the drawings.

First, the overall outline of the present invention will be explained according to FIG. )S is, as shown in FIG. Placement line Bl, B2. B
3, a large number of equal-length division bands C that are continuous in the feeding direction are formed over the entire left and right width direction.

As shown in FIG. 8a, such a wrapping paper sheet S has predetermined characters or patterns printed a on the surfaces of its left and right outermost compartment bands C1, C1 (printing process), and also has outermost compartments C1 and C1. , C1, a heat-fusible glue surface is formed in a predetermined form as shown in FIG. 8 (gluing is a process). The adhesive surface thus formed is dried to reduce its adhesion (drying process), and then, as shown in FIG. A cutout portion C is formed in the portion (cutting step). On the other hand, as shown in FIG. 8(d), the wrapping paper sheet 8 which has undergone the above drying process has its left and right outermost partition bands C1, C1 facing outward, and the center partition band C2, The outermost compartment bands C1, C1 are roughly folded back onto the back surface of 02, and thus folded back.
As shown in FIG. 8e, the material is polymerized in a pressure-bonded manner onto the central partition zone 02°C2 (first molding step and second molding step).

In this α state, the adhesive surface is heated to a required temperature of 1 degree, thereby pasting the outermost partition bands C1, C1 and the central partition bands C2, 02, respectively (adhering step). The left and right folded overlapping parts d and d thus formed are then cut and separated on the 3-way virtual vertical division line B2 as shown in FIG. Part d... is the virtual horizontal drawing line An, An + /
It is cut and separated at the top (first cutting step and second cutting step).

As shown in FIG.
, gluing means 2, drying means 3, cutting means 4, first forming means 5, second forming means 6, sticking means 7, seventh cutting means 8
and performed by the second cutting means 9.

To explain in more detail, the wrapping paper sheet (S) that is fed to the feeding path is wound into a paper tube around an idler roll 11 that is suspended on two shafts on a machine frame 10, as shown in FIG. The wrapping paper sheet S is held in a roll form, and is continuously unrolled by the tension applied to the wrapping paper sheet S as it is unwound.

Next, the printing means 1 sequentially sends the printing ink filled in the cartridge 12 to a plurality of transfer rolls 13a to 13dK, which rotate in synchronization with each other, to uniformly adhere the printing ink, and transfers the printing ink to the final transfer roll 13e, which is driven. Transfer printing is performed on the surface of the wrapping paper (sheet) 8 that passes between the roll 14, and in the illustrated example, two printing means 1 are installed in series to provide so-called two-color printing. It has become.

In this case, the printing a is applied to the surfaces of the left and right outermost partition bands C1, C1 of the wrapping paper sheet S in a point-symmetrical relationship with each other, as shown in FIG. 8 avC.

The wrapping paper sheet S that has been subjected to the printing process by the printing means IK is then introduced into the gluing means 2. This gluing means 2 is installed on the opposite side of the printing means 1, sandwiching the wrapping paper sheet S, and transfers heat-fusible synthetic resin adhesive such as polyethylene liquid filled in the glue tank 15 to a transfer roll. 1
6, and then this can be attached to the back side of the wrapping paper sheet S to form a glue surface. In this case, gluing is carried out on the back side of the left and right outermost compartment bands C1; 01, as shown in FIG. 8bK: These compartment bands Cl, C! This can be done by forming a glue surface on the outer edge of the transfer roll 16 and the front and rear edges of the transfer roll 16, or by forming a glue surface on the outer peripheral surface of the transfer roll 16 in the means 2. Engraved the four parts,
This transfer roll 16 has a structure in which the glue adhering to the outer peripheral surface other than these four parts is peeled off in advance with a knife 17.
Wrapping paper sheet SVC passing between and drive roll 1B
Make sure to attach the above four parts of glue in a U-shape.

The wrapping paper that has undergone the sizing process by means 2 is then sent to a drying process, where the glued surface is heated and dried to check the adhesion of the glued surface. is reduced. The drying means 3 used for this purpose is equipped with a wind cylinder 19 whose inside is heated by an electric heater or the like, and when the wrapping paper sheet 8 passes through this wind cylinder 19, the printing a and the glue surface are removed. Completely dry and solidify.

The wrapping paper sheet that has undergone the drying process is then sent to a cutting process 4, where one end of the left and right outermost compartment bands C1, 01 on which the glue surface is not formed is cut out by the cutting means 4. It is cut out in a substantially ■-shape to form cutout portions c and c.

As shown in FIGS. 2 and 3, a backup roll 20 serving as a driving roll and a guicut roll 22 that rotates in synchronization with the backup roll 20 via two synchronizing gears are mounted on a machine frame 1o. By passing the wrapping paper sheet S between both rolls 20° and 22, the cutout portion C is formed. As for the configuration of this reservoir, substantially triangular cutting blades 23, 23 are implanted in the left and right ends of the Gui-cut roll 22. In addition, Gui Cut Roll 2
The surface of the wrapping paper sheet 2 is formed of a sponge layer, and a cutting blade 23 is embedded in this sponge layer, thereby achieving smooth feeding and cutting of the wrapping paper sheet s.

By the way, in order to form the cut portions C accurately at equal pitches on the endless wrapping paper sheet S, the rotational speed of both rolls 20 and 22 as well as the wrapping %, -) So
ENG,・,I,A,,Ya,□1.4ao 1 must be. Therefore, in the illustrated example, as clearly shown in FIG. Before passing through a pair of adjustment rolls 26 and 27.

That is, a worm 29 provided with a knob 2B at one end and a worm wheel 30 that meshes with the worm 29 are pivotally supported on a seven frame 31, and one adjustment roll 27 is freely rotatably supported on the same axis as the worm wheel 30. An adjustment arm 32 is fixed to the wheel shaft, and the other adjustment roll 26 is rotatably mounted on the tip of the arm 32.
A means 331 having the same structure as the feed timing means 33 is disposed oppositely between the wet cut roll 22 and the backup roll 20, as shown by adding a dash to the above reference numeral.

According to such a device, one feed timing means 3
By rotating the knob 2B of 3, the worm 29
The adjustment arm 32 is tilted via the worm wheel 30, and the distance of the wrapping paper sheet S from the drive roll 25 to one adjustment roll 27Vc is freely changed by the other adjustment roll 26. 22 adjusts the timing of cutting. In FIG. 2, 34 is a manual lever for releasing the push roll 24 from the drive roll 25 against a pressure spring (not shown), and 35 is its supporting arm. Still in FIG. 3, 36 is a bearing adjustment device for adjusting the shaft position of the Gui-cut roll 22 to below L.

Wrapping paper sheet S that has undergone the cutting process by the cutting means 4
Next, it is sent to the molding process. This molding process is divided into a first molding process and a second molding process, and in the first molding process,
As shown in Figure B d, the outermost dividing bands c on the left and right sides of the wrapping paper sheet
1. ci is the central section zone 02.ci adjacent to these. It is roughly folded back to the back side of C2. Then, in the second molding process, such a material is used as the outermost partition band 01. C1 and the central partition bands C2, C2 are superimposed in a compressed manner, and creases are formed at the virtual longitudinal partition lines Bl, B3.

4 to 6 show the A-th forming means 5. FIG. The first forming means 6 includes a rectangular flat plate member 37 suspended on the machine frame 10, and a pair of left and right kite members 3B disposed to cover the left and right edges of the flat plate member 37, respectively. Equipped with

That is, the rectangular flat plate portion +137 has a vertical rod 39 protruding from its center surface, and the upper end of the vertical rod 39 is fixed to a horizontal support rod 40 attached to the machine frame 10Vc. In this case, 40 horizontal support rods are provided with a mounting bracket 41 at the base end thereof, and a mounting bolt 43 is inserted into a downward elongated hole 42 formed in the mounting bracket 41, and this bolt 43 is inserted into the machine frame 1.
o is tightened. Furthermore, the vertical support rod 39 is provided with a side hole 44 at its upper end, and the horizontal support rod 4 is inserted into this side hole 44.
o is inserted, and the horizontal support rod 4o is clamped and tightened by the tightening screw 45. Therefore, the position of the flat member 37 is adjusted in the left-right direction by loosening the tightening screw 45 and sliding the vertical support rod 39 along the horizontal support rod 4o. The height and position can be adjusted in the front-back direction by displacing it up and down or rocking it back and forth. On the other hand, the guide member 3B is formed by integrally forming a lower plate part 38a and an inclined plate part 38b in a bent shape.
- The inclined plate portion 38a is arranged so as to sandwich the feeding route of the left and right dividing bands 02°C2 at the center of the plate, and the inclined plate portion 38a is arranged so as to cover the upper surface side of the flat plate member 37. A pair of guide members 3B are provided, each of which is attached to a lower horizontal support rod 46 projecting from the machine frame 10. That is, a pair of guide members 3B have integrally a slider 4B provided with a knob 47, and these sliders 4B are slidably fitted onto the lower horizontal support rod 41, and are fixed by tightening the knob 47. Ru. Furthermore, the lower horizontal support rod 46 is
It is attached to the machine frame 10 via a mounting bracket 60 having a long hole 49, and the bolt 5 inserted through the long hole 49 is attached to the machine frame 10.
1 is tightened to the machine frame 10. Therefore, by loosening the knob 47 and sliding the slider 48 left and right along the lower horizontal support rod 46, the position of the pair of guide members 38 can be adjusted independently in the left and right direction.
Furthermore, the mounting is performed by loosening the bolt 51 and displacing the lower horizontal support rod 46 up and down, or by swinging it back and forth to adjust the height and the position in the front-back direction.

According to such a first forming means 5, as clearly shown in FIGS. 4 to 6, as the wrapping paper sheet S is fed, its central partition band 02. At the same time as C2 passes between the flat plate-like member 37 and the lower plate part 38a of the pair of guide members 3B, the feeding path of the outermost partition band 01 and C1 is regulated by the pair of inclined plate parts 38b, and the flat plate-like member It will go around to the top of 37. Therefore, the wrapping paper sheet 8 which has been subjected to the first forming step by the seventh forming means 5 has the left and right outermost partition bands 01,
01 is approximately folded back onto the central partition bands C2 and 02 adjacent to these.

Immediately after the wrapping paper sheet (S) that has undergone the first forming process is subjected to a second forming process by the second forming means 6.

As is clear from FIGS. 1, 6, and 7, the second forming means 6 includes a drive roll 52 and a drive roll 52.
D. A pressing force adjustment roll 53 that is pressed is provided. As shown in FIG. 6, 53 pressing force adjustment rolls can freely rotate at the tips of a pair of swinging arms 55 fixed to a rotary shaft 54 protruding from the machine frame 10v. Further, a pressing force setting lever 56 is fixed to the base end of the rotating shaft 54. A locking tool 57 having an arcuate shape on the machine frame 10VC is fixed to this pressing force setting lever 56, and the pressing force setting lever 56 The configuration is such that the pressing force of the pressing force adjustment roll 53 against the drive roll 52 can be set in stages depending on whether the driving roll 52 is locked or not.

The wrapping paper sheet) 8 that has passed through the first self-forming means 5 is
By passing through two forming means 6, complete forming is achieved as shown in FIG. 8e. That is, when the wrapping paper sheet 8 shown in FIG. 8d is introduced between the drive roll 52 and the pressing force adjustment roll 53, the left and right outermost sections are As a result of the bands C1 and C1 being superimposed on the respective adjacent center partition bands 02 and C2 in a compressed manner, the above-mentioned virtual vertical drawing line B1. A complete crease is formed on B2, resulting in a configuration as shown in FIG. 8e.

After being shaped in this way, the adhesive process is performed by passing through the adhesive means 7. The pasting means 7, as shown in FIG. paper sheet)
Since the glue surface formed on the back side of the left and right outermost partition bands C1, C1 in 8 is heated, the outermost partition bands C1, C1 and the central partition bands 02, 02 are pasted by this glue surface. is folded back to the left and right to form overlapping portions d.

Next, the wrapping paper sheet S is sent to the first cutting means 8 and the second cutting means 9, and is subjected to a first cutting step and a second cutting step.

The backup roll 63 is separated, and the wrapping paper sheet S passes between these two rolls 62 and 63, and is cut on the virtual vertical drawing line B2 passing through its center, as shown in Figure B f. , a cutting roll 65 provided with left and right folds, and a backup roll 66 opposing it, and the wrapping paper sheet s is cut into two rolls 65.6.
By passing between 8 and 8, virtual horizontal partition @ An+A
The wrapping paper bag P is finally separated as shown in FIG. 8g.

This wrapping paper bag E is conveyed to a predetermined location by a conveyor 67.

In the wrapping paper bag P manufactured as described above, the cutout portion C of the wrapping paper sheet S serves as an opening for inserting and removing disposable chopsticks and the like. However, disposable chopsticks and the like can be easily taken in and out through this cutout C1, that is, the opening.

In the above embodiment, the printing means 1, the gluing means 2, the drying means 3, the cutting means 4, the seventh forming means 5, the ! Molding means 6, pasting means 7, first cutting means B and U M,2,
,, lyu, 5, 2, 2, 8゜, 1ゎ, We have explained that they are provided in this order along 1, and each process is performed in this order, but it is not necessarily necessary to provide them in this order. do not have. For example, if the drying means 3 is provided immediately after the printing means 1 and the gluing means 2, it is possible to prevent water during gluing from increasing the temperature of the printed surface by τ and reducing its color brightness. There is an advantage. Moreover, the cutting means 4
It is also possible to provide the printing means 1 or the gluing means 2 before the printing means 1 or the gluing means 2, and such changes in design should be made as appropriate and necessary.

As is clear from the above explanation, according to the present invention, although wrapping paper bags for disposable chopsticks, etc. are manufactured in pairs, each of the various means required for this is simple in construction. As a result, production efficiency is improved, costs are reduced, and maintenance is advantageous.

In particular, when folding the outermost partitioning band of the wrapping paper sheet, the folding can be reliably performed without going through the seventh forming step and the second forming step, and the yield of the wrapping paper sheet can also be improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing an embodiment of the present invention, FIG. 2 is a front view showing the cutting means, FIG. 3 is a partially cutaway side view showing the cutting means, and FIG. 4 is a front view showing the first forming means. Side view showing,
Fig. 5 is a front view showing the seventh forming means, Fig. 6 is a perspective view showing the combination of the first forming means and the second forming means, Fig. 7 is a perspective view of the second forming means, Fig. 8 a = f Vi is an explanatory diagram showing the work steps from wrapping paper sheets to completing wrapping paper bags according to the present invention. P...Wrapping paper bag, S...Wrapping paper bag), AnlA
n + /...virtual horizontal drawing line, Bl, B2. B3・
...Virtual vertical drawing line, C... Equal length partition band, C1... Outermost partition band, 02... Center partition band, a... Printing,
b... Glue surface, C... Cutting part, d... Folding and overlapping part, 1... Printing means, 2... Gluing means, 3...
Drying means, 4... Cutting means, 5... First forming means, 6... Second forming means, 7... Pasting means, 8...
Seventh cutting means, 9... Second cutting means, 37... Rectangular flat plate member, 3B... Guide member, 38a... Lower plate portion of guide member, 38b... Inclined plate of guide member Department.

Claims (1)

[Claims] /゛, a printing process in which a predetermined printing is performed on the outermost left and right partition band surfaces of a wrapping paper sheet in which a large number of equal length partition bands continuous in the feeding direction are formed in four rows in the left and right width direction. and,
On the back side of the left and right outermost sections of the wrapping paper sheet,
The gluing process involves forming a heat-adhesive glue surface on the outer edge and either front or front edge of these partition strips, and this gluing involves drying the glue surface formed through the process to determine its adhesion. a drying step for reducing the amount of water; a cutting step for cutting out one end of the left and right outermost partition bands where the surface described in 1 is not formed;
A first forming step of roughly folding the left and right outermost partition bands of the wrapping paper sheet that has undergone the drying process onto the back surface of the adjacent central partition band of the wrapping paper sheet so that the front surface thereof faces outward; A second forming process in which the left and right outermost partition bands folded back in the first forming process are superimposed on the respective adjacent central partition bands in a compressed manner, and after the second forming process,
An adhesion step in which the adhesive surface is heated to adhere the left and right outermost partition bands to the corresponding central partition bands, and the left and right folded overlapping parts formed in the adhesion process are applied to the left and right sides of the wrapping paper sheet. A method for producing a wrapping paper bag comprising a first cutting step and a second cutting step of cutting and separating on the central partition line in the width direction and on the partition lines at equal pitches in the feeding direction, respectively. 2. The printing process, the gluing process, the drying process, the cutting process, the seventh cutting process, the second molding process, the pasting process, the first cutting process, and the second cutting process are performed in this order. A method for producing a wrapping paper bag according to item 1. 3. Printing means for applying predetermined printing to the surface of the left and right outermost partition bands in a wrapping paper sheet in which a large number of equal length partition bands continuous in the feeding direction are formed in four rows in the left and right width direction; On the back side of the outermost compartment band,
The method of gluing is to form a heat-adhesive glue surface on the outer edge and one of the front and rear edges of these partition strips, and the gluing method is to dry the glue surface formed by the means to improve its adhesion. a drying means for reducing the adhesive surface; and a cutting means for cutting out one end of the left and right outermost partition bands where the glue surface is not formed;
The left and right outermost partition bands of the wrapping paper sheet whose adhesive side has been dried by the drying means are roughly folded onto the back surface of the adjacent center partition band of the wrapping paper sheet so that the front side faces outward. and a second molding means that presses and superposes the left and right outermost partition bands folded back by the seventh forming means onto the respective adjacent central partition bands.
a molding means, a pasting means for heating the adhesive surface to adhere both of the zones after polymerizing the outermost zone zone to the center zone zone by the No. JF#J type means; and a sticking means. a first cutting means and a second cutting means for cutting and separating the left and right folded overlapping portions formed by the wrapping paper sheet on the central partition line in the left and right width direction of the wrapping paper sheet and on the partition lines at equal pitches in the feeding direction; 1. The forming means suspends a rectangular flat member from the machine frame along the feeding route of the wrapping paper sheet, and a pair of left and right guide members are provided at the left and right edges of this rectangular flat member so as to cover it. The guide member is provided with a lower plate part that sandwiches the feeding path of the left and right dividing bands in the center of the wrapping paper sheet between the rectangular flat plate member, and An apparatus for manufacturing a wrapping paper bag, characterized in that the outermost partition band is integrally formed with an inclined plate portion that wraps around the top of the rectangular flat member as the partition band is fed. . The printing means, the gluing means, the drying means, the cutting means, the first forming means, the first forming means, the pasting means, the first cutting means and the second cutting means are arranged along the feeding path of the wrapping paper sheet. The wrapping paper bag manufacturing apparatus according to claim 3, which is provided in this order. 5. Manufacture of a wrapping paper bag according to claim 3 or 7, wherein the rectangular flat plate member is configured to be adjustable in position in the front and rear directions and in the downward direction with respect to the feeding path of the wrapping paper sheet. Device. 6. The wrapping paper bag manufacturing apparatus according to claim 5, wherein the pair of left and right guide members are individually adjustable in position in a direction orthogonal to the feeding path of the wrapping paper sheet.